fix(cli): add explicit support for Jest CLI arguments #3444

alicewriteswrongs · 2022-06-28T16:13:31Z

This adds explicit support to our CLI argument parsing code for Jest's
CLI arguments by adding entries to the arrays we use to parse 'known'
arguments.

Pull request checklist

Please check if your PR fulfills the following requirements:

Tests for the changes have been added (for bug fixes / features)
Docs have been reviewed and added / updated if needed (for bug fixes / features)
Build (npm run build) was run locally and any changes were pushed
Unit tests (npm test) were run locally and passed
E2E Tests (npm run test.karma.prod) were run locally and passed
Prettier (npm run prettier) was run locally and passed

Pull request type

Please check the type of change your PR introduces:

What is the current behavior?

GitHub Issue Number: N/A

What is the new behavior?

This PR makes it so that we declare all the Jest CLI arguments (as pulled from the file in which they're implemented) in src/cli/config-flags.ts, so all of these flags are now fully-supported 'first class' (if you will) CLI flags.

Does this introduce a breaking change?

Yes
No

Testing

Tests are passing, which is encouraging!

I also confirmed that this fixes the problem shown by the reproduction case in #3276, the underlying cause of which is that we only officially supported some jest arguments and not all, but actually all CLI args were making their way through to jest in a convoluted way that produces somewhat inconsistent behavior.

Other information

github-actions · 2022-06-28T16:15:31Z

`--strictNullChecks` error report

Typechecking with --strictNullChecks resulted in 2782 errors on this branch.

That's the same number of errors on main, so at least we're not creating new ones!

reports and statistics

Our most error-prone files

Path	Error Count
src/compiler/config/test/validate-dev-server.spec.ts	66
src/compiler/config/test/validate-output-www.spec.ts	64
src/compiler/prerender/prerender-main.ts	42
src/screenshot/connector-base.ts	40
src/dev-server/index.ts	39
src/mock-doc/node.ts	37
src/mock-doc/serialize-node.ts	36
src/compiler/sys/tests/in-memory-fs.spec.ts	34
src/testing/puppeteer/puppeteer-browser.ts	34
src/screenshot/screenshot-compare.ts	33
src/testing/jest/jest-config.ts	33
src/compiler/transformers/test/parse-props.spec.ts	32
src/dev-server/server-process.ts	32
src/testing/jest/jest-screenshot.ts	31
src/compiler/config/test/validate-testing.spec.ts	30
src/runtime/vdom/vdom-render.ts	30
src/compiler/sys/typescript/typescript-config.ts	28
src/testing/spec-page.ts	28
src/compiler/build/build-stats.ts	27
src/compiler/output-targets/dist-lazy/generate-lazy-module.ts	26

Our most common errors

Typescript Error Code	Count	Error messages
TS2532	1125	Error messages Object is possibly 'undefined'.
TS2345	742	Error messages Argument of type 'Logger \| undefined' is not assignable to parameter of type 'Logger'. Type 'undefined' is not assignable to type 'Logger'. Argument of type 'string \| undefined' is not assignable to parameter of type 'string'. Type 'undefined' is not assignable to type 'string'. Argument of type '"g" \| "prerender" \| "build" \| "docs" \| "serve" \| "version" \| "info" \| "generate" \| "telemetry" \| "test" \| null \| undefined' is not assignable to parameter of type 'TaskCommand'. Type 'undefined' is not assignable to type 'TaskCommand'. Argument of type '"g" \| "prerender" \| "build" \| "docs" \| "serve" \| "info" \| "generate" \| "telemetry" \| "test" \| null \| undefined' is not assignable to parameter of type 'TaskCommand'. Type 'undefined' is not assignable to type 'TaskCommand'. Argument of type '"g" \| "prerender" \| "build" \| "docs" \| "serve" \| "generate" \| "telemetry" \| "test" \| null \| undefined' is not assignable to parameter of type 'TaskCommand'. Type 'undefined' is not assignable to type 'TaskCommand'. Argument of type 'Promise<(() => void) \| null>' is not assignable to parameter of type 'Promise<() => void>'. Argument of type 'null' is not assignable to parameter of type 'BuildResultsComponentGraph'. Argument of type 'DevServerConfig \| undefined' is not assignable to parameter of type 'StencilDevServerConfig'. Type 'undefined' is not assignable to type 'StencilDevServerConfig'. Argument of type 'Promise<(() => void) \| null>' is not assignable to parameter of type 'Promise<() => void>'. Type '(() => void) \| null' is not assignable to type '() => void'. Type 'null' is not assignable to type '() => void'. Argument of type 'boolean \| null \| undefined' is not assignable to parameter of type 'boolean \| undefined'. Type 'null' is not assignable to type 'boolean \| undefined'. Argument of type 'number \| undefined' is not assignable to parameter of type 'number'. Type 'undefined' is not assignable to type 'number'. Argument of type 'string' is not assignable to parameter of type 'never'. Argument of type 'ComponentRuntimeHostListener[] \| undefined' is not assignable to parameter of type 'ComponentRuntimeHostListener[]'. Type 'undefined' is not assignable to type 'ComponentRuntimeHostListener[]'. Argument of type 'HTMLScriptElement \| null \| undefined' is not assignable to parameter of type 'HTMLScriptElement'. Type 'undefined' is not assignable to type 'HTMLScriptElement'. Argument of type 'string \| null' is not assignable to parameter of type 'string'. Type 'null' is not assignable to type 'string'. Argument of type 'string[] \| undefined' is not assignable to parameter of type 'string[]'. Type 'undefined' is not assignable to type 'string[]'. Argument of type 'Diagnostic[] \| undefined' is not assignable to parameter of type 'readonly Diagnostic[]'. Type 'undefined' is not assignable to type 'readonly Diagnostic[]'. Argument of type 'CompilerSystem \| undefined' is not assignable to parameter of type 'CompilerSystem'. Type 'undefined' is not assignable to type 'CompilerSystem'. Argument of type 'boolean \| undefined' is not assignable to parameter of type 'boolean'. Argument of type 'BuildConditionals \| undefined' is not assignable to parameter of type 'BuildConditionals'. Type 'undefined' is not assignable to type 'BuildConditionals'. Argument of type 'Diagnostic[] \| undefined' is not assignable to parameter of type 'Diagnostic[]'. Type 'undefined' is not assignable to type 'Diagnostic[]'. Argument of type 'WorkerMeta \| undefined' is not assignable to parameter of type 'WorkerMeta'. Type 'undefined' is not assignable to type 'WorkerMeta'. Argument of type 'CopyTask[] \| undefined' is not assignable to parameter of type 'boolean \| CopyTask[]'. Argument of type '{ type: "copy"; dir: string \| undefined; copy: d.CopyTask[]; }' is not assignable to parameter of type 'OutputTargetCopy \| OutputTargetDistCustomElementsBundle'. Types of property 'dir' are incompatible. Type 'string \| undefined' is not assignable to type 'string'. Type 'undefined' is not assignable to type 'string'. Argument of type 'CopyTask[] \| undefined' is not assignable to parameter of type 'boolean \| CopyTask[]'. Type 'undefined' is not assignable to type 'boolean \| CopyTask[]'. Argument of type '{ type: "copy"; dir: string \| undefined; copy: CopyTask[]; }' is not assignable to parameter of type 'OutputTargetCopy \| OutputTargetDistCustomElements \| OutputTargetDistTypes'. Types of property 'dir' are incompatible. Type 'string \| undefined' is not assignable to type 'string'. Type 'undefined' is not assignable to type 'string'. Argument of type 'OutputTargetWww' is not assignable to parameter of type 'never'. Argument of type 'ConfigFlags \| undefined' is not assignable to parameter of type 'ConfigFlags'. Type 'undefined' is not assignable to type 'ConfigFlags'. Argument of type 'string \| null \| undefined' is not assignable to parameter of type 'string'. Type 'undefined' is not assignable to type 'string'. Argument of type 'Set<string \| null>' is not assignable to parameter of type 'Set'. Type 'string \| null' is not assignable to type 'string'. Type 'null' is not assignable to type 'string'. Argument of type 'Set<string \| null>' is not assignable to parameter of type 'Set'. Argument of type 'RollupConfig \| undefined' is not assignable to parameter of type 'RollupConfig'. Type 'undefined' is not assignable to type 'RollupConfig'. Argument of type '(string[] \| undefined)[]' is not assignable to parameter of type 'string[][]'. Type 'string[] \| undefined' is not assignable to type 'string[]'. Type 'undefined' is not assignable to type 'string[]'. Argument of type 'ComponentCompilerMeta \| undefined' is not assignable to parameter of type 'ComponentCompilerMeta'. Type 'undefined' is not assignable to type 'ComponentCompilerMeta'. Argument of type 'SourceTarget \| undefined' is not assignable to parameter of type 'SourceTarget'. Type 'undefined' is not assignable to type 'SourceTarget'. Argument of type 'boolean \| undefined' is not assignable to parameter of type 'boolean'. Type 'undefined' is not assignable to type 'boolean'. Argument of type '(string \| undefined)[]' is not assignable to parameter of type 'string[]'. Type 'string \| undefined' is not assignable to type 'string'. Type 'undefined' is not assignable to type 'string'. Argument of type '(string \| undefined)[]' is not assignable to parameter of type 'string[]'. Argument of type 'RollupSourceMap \| undefined' is not assignable to parameter of type 'SourceMap'. Type 'undefined' is not assignable to type 'SourceMap'. Argument of type 'EntryModule \| undefined' is not assignable to parameter of type 'EntryModule'. Type 'undefined' is not assignable to type 'EntryModule'. Argument of type '(Module \| undefined)[]' is not assignable to parameter of type 'Module[]'. Type 'Module \| undefined' is not assignable to type 'Module'. Type 'undefined' is not assignable to type 'Module'. Argument of type 'Document \| null' is not assignable to parameter of type 'Document'. Type 'null' is not assignable to type 'Document'. Argument of type 'Document \| null' is not assignable to parameter of type 'Node \| MockNode'. Type 'null' is not assignable to type 'Node \| MockNode'. Argument of type 'HydrateAnchorElement' is not assignable to parameter of type '{ [attrName: string]: string; }'. 'string' index signatures are incompatible. Type 'string \| undefined' is not assignable to type 'string'. Type 'undefined' is not assignable to type 'string'. Argument of type 'URL \| null' is not assignable to parameter of type 'URL'. Type 'null' is not assignable to type 'URL'. Argument of type 'string \| undefined' is not assignable to parameter of type 'string \| URL'. Argument of type 'SitemapXmpResults \| null' is not assignable to parameter of type 'SitemapXmpResults'. Type 'null' is not assignable to type 'SitemapXmpResults'. Argument of type 'Map<string, string[]> \| undefined' is not assignable to parameter of type 'Map<string, string[]>'. Type 'undefined' is not assignable to type 'Map<string, string[]>'. Argument of type 'undefined' is not assignable to parameter of type 'string'. Argument of type 'ServiceWorkerConfig \| undefined' is not assignable to parameter of type 'ServiceWorkerConfig'. Type 'undefined' is not assignable to type 'ServiceWorkerConfig'. Argument of type 'string \| undefined' is not assignable to parameter of type 'string \| URL'. Type 'undefined' is not assignable to type 'string \| URL'. Argument of type 'CssNode[] \| null \| undefined' is not assignable to parameter of type 'void \| CssNode[]'. Argument of type 'CssNode[] \| null \| undefined' is not assignable to parameter of type 'void \| CssNode[]'. Type 'null' is not assignable to type 'void \| CssNode[]'. Argument of type 'null' is not assignable to parameter of type 'string'. Argument of type 'CompilerSystemCreateDirectoryOptions \| undefined' is not assignable to parameter of type 'CompilerSystemCreateDirectoryOptions'. Type 'undefined' is not assignable to type 'CompilerSystemCreateDirectoryOptions'. Argument of type 'null' is not assignable to parameter of type 'CompilerFileWatcherEvent'. Argument of type 'null' is not assignable to parameter of type 'InMemoryFileSystem'. Argument of type 'undefined' is not assignable to parameter of type 'TypeChecker'. Argument of type 'CollectionBundleManifest[] \| undefined' is not assignable to parameter of type 'any[]'. Type 'undefined' is not assignable to type 'any[]'. Argument of type 'Module \| undefined' is not assignable to parameter of type 'Module'. Type 'undefined' is not assignable to type 'Module'. Argument of type 'NodeArray \| undefined' is not assignable to parameter of type 'NodeArray \| HeritageClause[]'. Type 'undefined' is not assignable to type 'NodeArray \| HeritageClause[]'. Argument of type 'Block \| undefined' is not assignable to parameter of type 'Block'. Type 'undefined' is not assignable to type 'Block'. Argument of type 'undefined' is not assignable to parameter of type 'readonly ParameterDeclaration[]'. Argument of type 'Expression \| undefined' is not assignable to parameter of type 'Expression'. Type 'undefined' is not assignable to type 'Expression'. Argument of type 'Symbol \| undefined' is not assignable to parameter of type 'Symbol'. Type 'undefined' is not assignable to type 'Symbol'. Argument of type 'string \| false' is not assignable to parameter of type 'string'. Type 'boolean' is not assignable to type 'string'. Argument of type 'TypeNode \| undefined' is not assignable to parameter of type 'Node'. Type 'undefined' is not assignable to type 'Node'. Argument of type '(PropertyAssignment \| null)[]' is not assignable to parameter of type 'readonly ObjectLiteralElementLike[]'. Type 'PropertyAssignment \| null' is not assignable to type 'ObjectLiteralElementLike'. Type 'null' is not assignable to type 'ObjectLiteralElementLike'. Argument of type 'Signature \| undefined' is not assignable to parameter of type 'Signature'. Type 'undefined' is not assignable to type 'Signature'. Argument of type '(PropertyAssignment \| null)[]' is not assignable to parameter of type 'readonly ObjectLiteralElementLike[]'. Argument of type 'Identifier \| undefined' is not assignable to parameter of type 'Node'. Type 'undefined' is not assignable to type 'Node'. Argument of type 'undefined' is not assignable to parameter of type 'readonly ClassElement[]'. Argument of type 'null' is not assignable to parameter of type 'Config \| undefined'. Argument of type 'Config \| undefined' is not assignable to parameter of type 'Config'. Type 'undefined' is not assignable to type 'Config'. Argument of type 'null' is not assignable to parameter of type 'CollectionCompilerMeta'. Argument of type 'PropertyName \| undefined' is not assignable to parameter of type 'PropertyName'. Type 'undefined' is not assignable to type 'PropertyName'. Argument of type 'NamedExportBindings \| undefined' is not assignable to parameter of type 'Node'. Type 'undefined' is not assignable to type 'Node'. Argument of type 'Declaration \| undefined' is not assignable to parameter of type 'Node'. Type 'undefined' is not assignable to type 'Node'. Argument of type 'Identifier \| undefined' is not assignable to parameter of type 'string \| BindingName'. Type 'undefined' is not assignable to type 'string \| BindingName'. Argument of type 'ScriptTarget \| undefined' is not assignable to parameter of type 'ScriptTarget'. Type 'undefined' is not assignable to type 'ScriptTarget'. Argument of type 'Diagnostic' is not assignable to parameter of type 'DiagnosticWithLocation'. Types of property 'file' are incompatible. Type 'SourceFile \| undefined' is not assignable to type 'SourceFile'. Type 'undefined' is not assignable to type 'SourceFile'. Argument of type '(...pathSegments: string[]) => string \| undefined' is not assignable to parameter of type '(...args: string[]) => string'. Type 'string \| undefined' is not assignable to type 'string'. Type 'undefined' is not assignable to type 'string'. Argument of type 'OpenInEditorCallback \| undefined' is not assignable to parameter of type 'OpenInEditorCallback'. Type 'undefined' is not assignable to type 'OpenInEditorCallback'. Argument of type 'CompilerWatcher \| undefined' is not assignable to parameter of type 'CompilerWatcher'. Type 'undefined' is not assignable to type 'CompilerWatcher'. Argument of type '{ editor: string \| undefined; }' is not assignable to parameter of type 'OpenInEditorOptions'. Types of property 'editor' are incompatible. Type 'string \| undefined' is not assignable to type 'string'. Type 'undefined' is not assignable to type 'string'. Argument of type 'string \| undefined' is not assignable to parameter of type 'PathLike'. Type 'undefined' is not assignable to type 'PathLike'. Argument of type 'DevServerConfig \| undefined' is not assignable to parameter of type 'DevServerConfig'. Type 'undefined' is not assignable to type 'DevServerConfig'. Argument of type 'CompilerBuildResults \| undefined' is not assignable to parameter of type 'CompilerBuildResults'. Type 'undefined' is not assignable to type 'CompilerBuildResults'. Argument of type 'Window \| undefined' is not assignable to parameter of type 'Window'. Type 'undefined' is not assignable to type 'Window'. Argument of type 'SerializeDocumentOptions \| undefined' is not assignable to parameter of type 'HydrateDocumentOptions'. Type 'undefined' is not assignable to type 'HydrateDocumentOptions'. Argument of type 'HydrateDocumentOptions \| undefined' is not assignable to parameter of type 'HydrateDocumentOptions'. Type 'undefined' is not assignable to type 'HydrateDocumentOptions'. Argument of type 'MockNode \| null' is not assignable to parameter of type 'MockNode'. Type 'null' is not assignable to type 'MockNode'. Argument of type 'ShadowRoot \| null' is not assignable to parameter of type 'Node'. Type 'null' is not assignable to type 'Node'. Argument of type 'null' is not assignable to parameter of type 'string \| Node'. Argument of type 'null' is not assignable to parameter of type 'string \| boolean \| undefined'. Argument of type '(Window & typeof globalThis) \| null' is not assignable to parameter of type 'Window'. Type 'null' is not assignable to type 'Window'. Argument of type 'string \| null \| undefined' is not assignable to parameter of type 'string \| undefined'. Argument of type 'HostRef \| undefined' is not assignable to parameter of type 'HostRef'. Type 'undefined' is not assignable to type 'HostRef'. Argument of type 'this' is not assignable to parameter of type 'HostElement'. Type 'HostElement' is not assignable to type 'import("/home/runner/work/stencil/stencil/src/declarations/stencil-private").HostElement'. The types returned by 'componentOnReady()' are incompatible between these types. Type 'Promise \| undefined' is not assignable to type 'Promise'. Type 'undefined' is not assignable to type 'Promise'. Argument of type 'this' is not assignable to parameter of type 'HostElement'. Argument of type 'string \| null' is not assignable to parameter of type 'string \| undefined'. Argument of type 'PropertyDescriptor \| undefined' is not assignable to parameter of type 'PropertyDescriptor & ThisType'. Type 'undefined' is not assignable to type 'PropertyDescriptor & ThisType'. Type 'undefined' is not assignable to type 'PropertyDescriptor'. Argument of type 'HTMLElement \| undefined' is not assignable to parameter of type 'HTMLElement'. Type 'undefined' is not assignable to type 'HTMLElement'. Argument of type 'HostElement \| undefined' is not assignable to parameter of type 'HostElement'. Type 'undefined' is not assignable to type 'HostElement'. Argument of type 'HostElement \| undefined' is not assignable to parameter of type 'EventTarget'. Type 'undefined' is not assignable to type 'EventTarget'. Argument of type 'HostElement \| undefined' is not assignable to parameter of type 'Element'. Type 'undefined' is not assignable to type 'Element'. Argument of type 'VNode[] \| undefined' is not assignable to parameter of type 'VNode[]'. Type 'undefined' is not assignable to type 'VNode[]'. Argument of type 'null \| undefined' is not assignable to parameter of type 'ChildType'. Type 'undefined' is not assignable to type 'ChildType'. Argument of type 'VNode \| null' is not assignable to parameter of type 'ChildType'. Type 'null' is not assignable to type 'ChildType'. Argument of type 'VNode \| undefined' is not assignable to parameter of type 'ChildType'. Type 'undefined' is not assignable to type 'ChildType'. Argument of type 'VNode \| null \| undefined' is not assignable to parameter of type 'ChildType'. Type 'undefined' is not assignable to type 'ChildType'. Argument of type 'null \| undefined' is not assignable to parameter of type 'ChildType'. Argument of type 'RenderNode \| undefined' is not assignable to parameter of type 'Node \| null'. Type 'undefined' is not assignable to type 'Node \| null'. Argument of type 'VNode \| undefined' is not assignable to parameter of type 'VNode'. Type 'undefined' is not assignable to type 'VNode'. Argument of type 'null' is not assignable to parameter of type 'VNode'. Argument of type 'RenderNode \| undefined' is not assignable to parameter of type 'Node'. Type 'undefined' is not assignable to type 'Node'. Argument of type 'null' is not assignable to parameter of type 'RenderNode'. Argument of type 'ScreenshotDiff \| undefined' is not assignable to parameter of type 'ScreenshotDiff'. Type 'undefined' is not assignable to type 'ScreenshotDiff'. Argument of type 'string \| undefined' is not assignable to parameter of type 'PathLike'. Argument of type 'string \| undefined' is not assignable to parameter of type 'string \| SemVer'. Type 'undefined' is not assignable to type 'string \| SemVer'. Argument of type 'string \| undefined' is not assignable to parameter of type 'string \| SemVer'. Argument of type 'null' is not assignable to parameter of type 'number \| undefined'. Argument of type 'null' is not assignable to parameter of type 'number \| PromiseLike'. Argument of type 'CompilerWorkerTask \| undefined' is not assignable to parameter of type 'CompilerWorkerTask'. Type 'undefined' is not assignable to type 'CompilerWorkerTask'. Argument of type 'null' is not assignable to parameter of type 'CompilerWorkerTask'. Argument of type 'TestingConfig \| undefined' is not assignable to parameter of type 'TestingConfig'. Type 'undefined' is not assignable to type 'TestingConfig'. Argument of type 'undefined' is not assignable to parameter of type 'ErrorHandler'. Argument of type 'string \| undefined' is not assignable to parameter of type 'MockRequestInfo'. Type 'undefined' is not assignable to type 'MockRequestInfo'. Argument of type 'string \| undefined' is not assignable to parameter of type 'MockRequestInfo'. Argument of type 'MockResponse \| undefined' is not assignable to parameter of type 'MockResponse'. Type 'undefined' is not assignable to type 'MockResponse'. Argument of type 'this' is not assignable to parameter of type 'E2EElementInternal'. Type 'E2EElement' is not assignable to type 'E2EElementInternal'. Types of property 'find' are incompatible. Type '(selector: string) => Promise<E2EElement \| null>' is not assignable to type '(selector: FindSelector) => Promise'. Argument of type 'string \| null \| undefined' is not assignable to parameter of type 'SerializableOrJSHandle'. Type 'undefined' is not assignable to type 'SerializableOrJSHandle'. Argument of type 'this' is not assignable to parameter of type 'E2EElementInternal'. Argument of type 'ElementHandle \| null' is not assignable to parameter of type 'ElementHandle'. Type 'null' is not assignable to type 'ElementHandle'. Argument of type '{ viewport: EmulateViewport \| undefined; userAgent: string \| undefined; }' is not assignable to parameter of type '{ viewport: Viewport; userAgent: string; }'. Types of property 'viewport' are incompatible. Type 'EmulateViewport \| undefined' is not assignable to type 'Viewport'. Type 'undefined' is not assignable to type 'Viewport'. Argument of type 'AnyHTMLElement \| undefined' is not assignable to parameter of type 'RuntimeRef'. Type 'undefined' is not assignable to type 'RuntimeRef'. Argument of type 'null' is not assignable to parameter of type 'SourceMap \| undefined'.
TS2322	551	Error messages Type 'string \| undefined' is not assignable to type 'string'. Type 'undefined' is not assignable to type 'string'. Type 'string \| null \| undefined' is not assignable to type 'string'. Type 'undefined' is not assignable to type 'string'. Type 'null' is not assignable to type 'DevServerConfig \| undefined'. Type 'boolean \| null \| undefined' is not assignable to type 'boolean \| undefined'. Type 'null' is not assignable to type 'DevServer'. Type 'undefined' is not assignable to type 'number'. Type 'string[] \| undefined' is not assignable to type 'string[]'. Type 'undefined' is not assignable to type 'string[]'. Type 'TaskCommand \| null \| undefined' is not assignable to type 'TaskCommand'. Type 'undefined' is not assignable to type 'TaskCommand'. Type 'PackageJsonData \| null' is not assignable to type 'PackageJsonData'. Type 'null' is not assignable to type 'PackageJsonData'. Type 'undefined' is not assignable to type 'ComponentConstructor \| Promise'. Type 'HTMLElement \| null' is not assignable to type 'HTMLElement'. Type 'null' is not assignable to type 'HTMLElement'. Type '({ type: "chunk"; fileName: string; map: SourceMap \| undefined; code: string; moduleFormat: ModuleFormat \| undefined; entryKey: string; imports: string[]; isEntry: boolean; ... 4 more ...; content?: undefined; } \| { ...; })[]' is not assignable to type 'RollupResult[]'. Type '{ type: "chunk"; fileName: string; map: SourceMap \| undefined; code: string; moduleFormat: ModuleFormat \| undefined; entryKey: string; imports: string[]; isEntry: boolean; ... 4 more ...; content?: undefined; } \| { ...; }' is not assignable to type 'RollupResult'. Type '{ type: "chunk"; fileName: string; map: SourceMap \| undefined; code: string; moduleFormat: ModuleFormat \| undefined; entryKey: string; imports: string[]; isEntry: boolean; ... 4 more ...; content?: undefined; }' is not assignable to type 'RollupResult'. Type '{ type: "chunk"; fileName: string; map: SourceMap \| undefined; code: string; moduleFormat: ModuleFormat \| undefined; entryKey: string; imports: string[]; isEntry: boolean; ... 4 more ...; content?: undefined; }' is not assignable to type 'RollupChunkResult'. Types of property 'moduleFormat' are incompatible. Type 'ModuleFormat \| undefined' is not assignable to type 'ModuleFormat'. Type 'undefined' is not assignable to type 'ModuleFormat'. Type 'null' is not assignable to type 'CompilerBuildResults'. Type 'undefined' is not assignable to type 'string'. Type 'null' is not assignable to type 'string'. Type 'undefined' is not assignable to type 'Document'. Type 'null' is not assignable to type 'Promise'. Type 'null' is not assignable to type 'LoggerTimeSpan'. Type 'boolean \| undefined' is not assignable to type 'boolean'. Type 'number \| undefined' is not assignable to type 'number'. Type 'undefined' is not assignable to type 'number'. Type 'boolean \| "prod" \| undefined' is not assignable to type 'boolean \| "prod"'. Type 'undefined' is not assignable to type 'boolean \| "prod"'. Type 'BuildResultsComponentGraph \| undefined' is not assignable to type 'BuildResultsComponentGraph'. Type 'undefined' is not assignable to type 'BuildResultsComponentGraph'. Type 'RollupResults \| undefined' is not assignable to type 'RollupResults'. Type 'undefined' is not assignable to type 'RollupResults'. Type '{ name: string \| undefined; source: string; tags: any[]; }[]' is not assignable to type '{ name: string; source: string; tags: string[]; }[]'. Type '{ name: string \| undefined; source: string; tags: any[]; }' is not assignable to type '{ name: string; source: string; tags: string[]; }'. Types of property 'name' are incompatible. Type 'string \| undefined' is not assignable to type 'string'. Type 'undefined' is not assignable to type 'string'. Type 'null' is not assignable to type 'CompilerWorkerContext'. Type 'null' is not assignable to type 'WatchOfConfigFile'. Type 'null' is not assignable to type '{ program: WatchOfConfigFile; rebuild: () => void; }'. Type 'string \| null' is not assignable to type 'string'. Type 'null' is not assignable to type 'string'. Type 'ComponentCompilerMeta \| undefined' is not assignable to type 'ComponentCompilerMeta'. Type 'undefined' is not assignable to type 'ComponentCompilerMeta'. Type 'null' is not assignable to type 'string \| undefined'. Type '{ code: string; exports: string[]; workerMsgId: string; dependencies: string[]; } \| null' is not assignable to type 'WorkerMeta \| undefined'. Type 'null' is not assignable to type 'WorkerMeta \| undefined'. Type 'WorkerMeta \| undefined' is not assignable to type 'WorkerMeta'. Type 'undefined' is not assignable to type 'WorkerMeta'. Type 'CompilerSystem \| undefined' is not assignable to type 'CompilerSystem'. Type 'undefined' is not assignable to type 'CompilerSystem'. Type 'Logger \| undefined' is not assignable to type 'Logger'. Type 'undefined' is not assignable to type 'Logger'. Type 'import("/home/runner/work/stencil/stencil/src/compiler/cache").Cache' is not assignable to type 'import("/home/runner/work/stencil/stencil/src/declarations/stencil-private").Cache'. The types returned by 'get(...)' are incompatible between these types. Type 'Promise<string \| null>' is not assignable to type 'Promise'. Type 'null' is not assignable to type 'UnvalidatedConfig'. Type 'null' is not assignable to type 'Record<string, any>'. Type 'null' is not assignable to type 'string[]'. Type '{ dir: string; buildDir: string; collectionDir: string \| null; typesDir: string; esmLoaderPath: string; copy: d.CopyTask[]; polyfills: boolean \| undefined; empty: boolean; type: "dist"; }' is not assignable to type 'Required'. Types of property 'polyfills' are incompatible. Type 'boolean \| undefined' is not assignable to type 'boolean'. Type 'string' is not assignable to type 'never'. Type 'string \| undefined' is not assignable to type 'never'. Type 'undefined' is not assignable to type 'never'. Type 'boolean \| undefined' is not assignable to type 'never'. Type 'undefined' is not assignable to type 'never'. Type 'boolean' is not assignable to type 'never'. Type 'CopyTask[]' is not assignable to type 'never'. Type 'null' is not assignable to type 'number \| undefined'. Type 'null' is not assignable to type 'HistoryApiFallback \| undefined'. Type 'null' is not assignable to type 'CopyTask[] \| undefined'. Type '{ dirPath: string; filePath: string; fileName: string; readmePath: string; usagesDir: string; tag: string; readme: string \| undefined; usage: JsonDocsUsage; docs: string; docsTags: CompilerJsDocTagInfo[]; ... 11 more ...; listeners: JsonDocsListener[]; }[]' is not assignable to type 'JsonDocsComponent[]'. Type '{ dirPath: string; filePath: string; fileName: string; readmePath: string; usagesDir: string; tag: string; readme: string \| undefined; usage: d.JsonDocsUsage; docs: string; docsTags: d.CompilerJsDocTagInfo[]; ... 11 more ...; listeners: d.JsonDocsListener[]; }' is not assignable to type 'JsonDocsComponent'. Types of property 'readme' are incompatible. Type 'string \| undefined' is not assignable to type 'string'. Type 'undefined' is not assignable to type 'string'. Type '{ name: string; type: string; mutable: boolean; attr: string \| undefined; reflectToAttr: boolean; docs: string; docsTags: CompilerJsDocTagInfo[]; default: string \| undefined; deprecation: string \| undefined; values: JsonDocsValue[]; optional: boolean; required: boolean; }[]' is not assignable to type 'JsonDocsProp[]'. Type '{ name: string; type: string; mutable: boolean; attr: string \| undefined; reflectToAttr: boolean; docs: string; docsTags: d.CompilerJsDocTagInfo[]; default: string \| undefined; deprecation: string \| undefined; values: d.JsonDocsValue[]; optional: boolean; required: boolean; }' is not assignable to type 'JsonDocsProp'. Types of property 'default' are incompatible. Type 'string \| undefined' is not assignable to type 'string'. Type 'undefined' is not assignable to type 'string'. Type '{ name: string; type: string; mutable: false; attr: string; reflectToAttr: false; docs: string; docsTags: never[]; default: undefined; deprecation: undefined; values: JsonDocsValue[]; optional: true; required: false; }[]' is not assignable to type 'JsonDocsProp[]'. Type '{ name: string; type: string; mutable: false; attr: string; reflectToAttr: false; docs: string; docsTags: never[]; default: undefined; deprecation: undefined; values: d.JsonDocsValue[]; optional: true; required: false; }' is not assignable to type 'JsonDocsProp'. Types of property 'default' are incompatible. Type 'undefined' is not assignable to type 'string'. Type '(ComponentCompilerMeta \| undefined)[]' is not assignable to type 'ComponentCompilerMeta[]'. Type 'ComponentCompilerMeta \| undefined' is not assignable to type 'ComponentCompilerMeta'. Type 'undefined' is not assignable to type 'ComponentCompilerMeta'. Type '(ComponentCompilerMeta \| undefined)[][]' is not assignable to type 'readonly ComponentCompilerMeta[][]'. Type '(ComponentCompilerMeta \| undefined)[]' is not assignable to type 'ComponentCompilerMeta[]'. Type 'null' is not assignable to type 'SourceMap \| undefined'. Type '{ name: string \| undefined; tags: string[]; }[]' is not assignable to type 'CollectionDependencyData[]'. Type '{ name: string \| undefined; tags: string[]; }' is not assignable to type 'CollectionDependencyData'. Types of property 'name' are incompatible. Type 'string \| undefined' is not assignable to type 'string'. Type 'undefined' is not assignable to type 'string'. Type 'string \| undefined' is not assignable to type 'string \| number'. Type 'undefined' is not assignable to type 'string \| number'. Type 'SourceMap \| undefined' is not assignable to type 'SourceMap'. Type 'undefined' is not assignable to type 'SourceMap'. Type 'string \| null' is not assignable to type 'string \| undefined'. Type 'null' is not assignable to type 'string \| undefined'. Type 'null' is not assignable to type 'Function'. Type 'null' is not assignable to type 'Map<string, string[]>'. Type 'null' is not assignable to type 'PrerenderConfig'. Type 'null' is not assignable to type 'Set'. Type 'null' is not assignable to type 'HydrateAnchorElement[]'. Type 'null' is not assignable to type '(prerenderRequest: PrerenderUrlRequest) => Promise'. Type 'RegExpExecArray \| null' is not assignable to type 'RegExpExecArray'. Type 'null' is not assignable to type 'RegExpExecArray'. Type 'CssNode \| null' is not assignable to type 'void \| CssNode'. Type 'null' is not assignable to type 'void \| CssNode'. Type 'CssNode \| null' is not assignable to type 'CssNode'. Type 'null' is not assignable to type 'CssNode'. Type 'CssNode \| null' is not assignable to type 'void \| CssNode'. Type 'null' is not assignable to type '() => string'. Type 'null' is not assignable to type 'number'. Type 'null' is not assignable to type 'boolean'. Type 'null' is not assignable to type 'boolean \| undefined'. Type 'FsItem \| undefined' is not assignable to type 'FsItem'. Type 'undefined' is not assignable to type 'FsItem'. Type 'null' is not assignable to type 'CompilerFileWatcherCallback[]'. Type '(key: string) => string \| undefined' is not assignable to type '(key: string) => string'. Type 'string \| undefined' is not assignable to type 'string'. Type 'undefined' is not assignable to type 'string'. Type '(p: string) => Promise<string \| undefined>' is not assignable to type '{ (p: string): Promise; (p: string, encoding: "utf8"): Promise; (p: string, encoding: "binary"): Promise; }'. Type 'Promise<string \| undefined>' is not assignable to type 'Promise'. Type 'string \| undefined' is not assignable to type 'string'. Type 'undefined' is not assignable to type 'string'. Type '(p: string) => string \| undefined' is not assignable to type '(p: string, encoding?: string \| undefined) => string'. Type 'string \| undefined' is not assignable to type 'string'. Type 'undefined' is not assignable to type 'string'. Type '((maxConcurrentWorkers: number) => WorkerMainController) \| null' is not assignable to type '((maxConcurrentWorkers: number) => WorkerMainController) \| undefined'. Type 'null' is not assignable to type '((maxConcurrentWorkers: number) => WorkerMainController) \| undefined'. Type 'null' is not assignable to type 'ResolvedModuleWithFailedLookupLocations'. Type 'null' is not assignable to type 'Worker'. Type 'CollectionCompilerMeta \| undefined' is not assignable to type 'CollectionCompilerMeta'. Type 'undefined' is not assignable to type 'CollectionCompilerMeta'. Type 'null' is not assignable to type 'ComponentCompilerStaticEvent'. Type 'null' is not assignable to type 'PropertyAssignment'. Type 'boolean \| null' is not assignable to type 'boolean'. Type 'null' is not assignable to type 'boolean'. Type 'undefined' is not assignable to type 'ComponentCompilerVirtualProperty'. Type '{ name: string; method: string; bubbles: boolean; cancelable: boolean; composed: boolean; docs: CompilerJsDoc; complexType: ComponentCompilerEventComplexType; internal: boolean \| undefined; }[]' is not assignable to type 'ComponentCompilerEvent[]'. Type '{ name: string; method: string; bubbles: boolean; cancelable: boolean; composed: boolean; docs: d.CompilerJsDoc; complexType: d.ComponentCompilerEventComplexType; internal: boolean \| undefined; }' is not assignable to type 'ComponentCompilerEvent'. Types of property 'internal' are incompatible. Type 'boolean \| undefined' is not assignable to type 'boolean'. Type '{ name: string; docs: CompilerJsDoc; complexType: ComponentCompilerMethodComplexType; internal: boolean \| undefined; }[]' is not assignable to type 'ComponentCompilerMethod[]'. Type '{ name: string; docs: d.CompilerJsDoc; complexType: d.ComponentCompilerMethodComplexType; internal: boolean \| undefined; }' is not assignable to type 'ComponentCompilerMethod'. Types of property 'internal' are incompatible. Type 'boolean \| undefined' is not assignable to type 'boolean'. Type '{ name: string; type: ComponentCompilerPropertyType; attribute: string \| undefined; reflect: boolean; mutable: boolean; required: boolean; optional: boolean; defaultValue: string \| undefined; complexType: ComponentCompilerPropertyComplexType; docs: CompilerJsDoc; internal: boolean \| undefined; }[]' is not assignable to type 'ComponentCompilerProperty[]'. Type '{ name: string; type: d.ComponentCompilerPropertyType; attribute: string \| undefined; reflect: boolean; mutable: boolean; required: boolean; optional: boolean; defaultValue: string \| undefined; complexType: d.ComponentCompilerPropertyComplexType; docs: d.CompilerJsDoc; internal: boolean \| undefined; }' is not assignable to type 'ComponentCompilerProperty'. Types of property 'internal' are incompatible. Type 'boolean \| undefined' is not assignable to type 'boolean'. Type 'null' is not assignable to type 'ImportData'. Type 'undefined' is not assignable to type '"queryparams" \| null'. Type 'null' is not assignable to type 'WeakSet'. Type 'null' is not assignable to type 'Module'. Type 'Module \| undefined' is not assignable to type 'Module'. Type 'undefined' is not assignable to type 'Module'. Type 'undefined' is not assignable to type 'CompilerJsDoc'. Type '{ [x: string]: d.TypesMemberNameData[] \| undefined; }' is not assignable to type 'TypesImportData'. 'string' index signatures are incompatible. Type 'TypesMemberNameData[] \| undefined' is not assignable to type 'TypesMemberNameData[]'. Type 'undefined' is not assignable to type 'TypesMemberNameData[]'. Type 'string \| undefined' is not assignable to type 'string \| null'. Type '((data: { file: string; line: number; column: number; }) => void) \| null' is not assignable to type 'OpenInEditorCallback \| undefined'. Type 'null' is not assignable to type 'OpenInEditorCallback \| undefined'. Type 'null' is not assignable to type 'WebSocket'. Type 'null' is not assignable to type 'BuildOnEventRemove'. Type 'null' is not assignable to type '() => void'. Type 'null' is not assignable to type '(msg: DevServerMessage) => void'. Type 'DevServerConfig \| undefined' is not assignable to type 'DevServerConfig'. Type 'undefined' is not assignable to type 'DevServerConfig'. Type 'null' is not assignable to type '{ open(openId: string): Promise; }'. Type 'string \| null' is not assignable to type 'string \| undefined'. Type 'null' is not assignable to type 'Promise<DevServerEditor[]>'. Type 'null' is not assignable to type '(req: IncomingMessage, res: ServerResponse, next: () => void) => void'. Type 'null' is not assignable to type 'URL'. Type 'null' is not assignable to type 'URLSearchParams'. Type 'PageReloadStrategy \| undefined' is not assignable to type 'PageReloadStrategy'. Type 'undefined' is not assignable to type 'PageReloadStrategy'. Type 'null' is not assignable to type 'Server'. Type 'null' is not assignable to type 'DevWebSocket'. Type 'null' is not assignable to type 'DevServerContext'. Type 'DevWebSocket \| null' is not assignable to type 'DevWebSocket'. Type 'null' is not assignable to type 'DevWebSocket'. Type 'string \| undefined' is not assignable to type 'string \| null'. Type 'undefined' is not assignable to type 'string \| null'. Type 'null' is not assignable to type 'ChildProcess'. Type 'null' is not assignable to type 'HydrateApp'. Type 'null' is not assignable to type 'ComponentConstructor'. Type '(this: HostElement) => Promise \| undefined' is not assignable to type '() => Promise'. Type 'Promise \| undefined' is not assignable to type 'Promise'. Type 'undefined' is not assignable to type 'Promise'. Type 'null' is not assignable to type 'Window & typeof globalThis'. Type 'null' is not assignable to type 'Window'. Type 'null' is not assignable to type 'Window & typeof globalThis'. Type 'null' is not assignable to type 'MockCSSStyleSheet'. Type 'null' is not assignable to type 'string \| boolean'. Type 'null' is not assignable to type 'Location'. Type 'null' is not assignable to type 'MockNode'. Type 'null' is not assignable to type 'MockElement'. Type 'null' is not assignable to type 'SVGSVGElement'. Type 'null' is not assignable to type 'SVGElement'. Type 'null' is not assignable to type 'EventTarget'. Type 'null' is not assignable to type 'MockEventListener[]'. Type 'null' is not assignable to type 'MockDocument'. Type '{ name: string; value: string; namespace: string; prefix: null; }[]' is not assignable to type 'Attribute[]'. Type '{ name: string; value: string; namespace: string; prefix: null; }' is not assignable to type 'Attribute'. Types of property 'prefix' are incompatible. Type 'null' is not assignable to type 'string \| undefined'. Type 'ParentNode \| null' is not assignable to type 'Node'. Type 'null' is not assignable to type 'Node'. Type 'null' is not assignable to type 'Document'. Type 'string \| null \| undefined' is not assignable to type 'string \| undefined'. Type 'never[] \| null' is not assignable to type 'RenderNode[]'. Type 'null' is not assignable to type 'RenderNode[]'. Type 'null' is not assignable to type 'VNode[]'. Type 'null' is not assignable to type 'string \| number \| undefined'. Type 'null' is not assignable to type 'string \| number \| Function'. Type 'RenderNode \| null' is not assignable to type 'RenderNode'. Type 'null' is not assignable to type 'RenderNode'. Type 'HTMLElement \| null' is not assignable to type 'EventTarget'. Type 'null' is not assignable to type 'EventTarget'. Type 'string \| null \| undefined' is not assignable to type 'string \| undefined'. Type 'null' is not assignable to type 'string \| undefined'. Type 'null' is not assignable to type 'Set \| undefined'. Type 'null' is not assignable to type '[string, any][] \| undefined'. Type 'VNode[] \| undefined' is not assignable to type 'VNode[]'. Type 'undefined' is not assignable to type 'VNode[]'. Type '(props: {}, children: VNode[], utils: FunctionalUtilities) => null' is not assignable to type 'FunctionalComponent<{}>'. Type 'null' is not assignable to type 'VNode \| VNode[]'. Type '() => null' is not assignable to type 'FunctionalComponent<{}>'. Type 'null' is not assignable to type 'VNode \| VNode[]'. Type 'null' is not assignable to type 'VNode'. Type 'undefined' is not assignable to type 'VNode'. Type 'RenderNode \| undefined' is not assignable to type 'RenderNode'. Type 'undefined' is not assignable to type 'RenderNode'. Type 'RelocateNodeData \| undefined' is not assignable to type 'RelocateNodeData'. Type 'undefined' is not assignable to type 'RelocateNodeData'. Type 'ChildNode \| null' is not assignable to type 'Node'. Type 'null' is not assignable to type 'Node'. Type 'null' is not assignable to type 'ScreenshotBuild'. Type 'null' is not assignable to type 'ScreenshotCache'. Type 'null' is not assignable to type 'Buffer'. Type 'null' is not assignable to type 'Screenshot'. Type '(() => void) \| undefined' is not assignable to type '() => any'. Type 'undefined' is not assignable to type '() => any'. Type '() => null' is not assignable to type '(opts: { rootDir: string; moduleId: string; path: string; }) => string'. Type 'null' is not assignable to type 'string'. Type '() => null' is not assignable to type '(opts: { moduleId: string; path?: string \| undefined; version?: string \| undefined; }) => string'. Type 'null' is not assignable to type 'string'. Type '() => string \| undefined' is not assignable to type '() => string'. Type 'string \| undefined' is not assignable to type 'string'. Type 'undefined' is not assignable to type 'string'. Type 'number \| null' is not assignable to type 'number'. Type 'null' is not assignable to type 'number'. Type 'any[] \| undefined' is not assignable to type 'any[]'. Type 'undefined' is not assignable to type 'any[]'. Type 'CompilerOptions \| null' is not assignable to type 'CompilerOptions'. Type 'null' is not assignable to type 'CompilerOptions'. Type 'null' is not assignable to type 'ConfigBundle[] \| undefined'. Type 'null' is not assignable to type 'OutputTarget[] \| undefined'. Type 'null' is not assignable to type 'TestingConfig \| undefined'. Type 'null' is not assignable to type 'Cache'. Type 'null' is not assignable to type 'InMemoryFileSystem'. Type 'HostRef \| undefined' is not assignable to type 'HostRef'. Type 'undefined' is not assignable to type 'HostRef'. Type 'Function \| undefined' is not assignable to type 'Function'. Type 'undefined' is not assignable to type 'Function'. Type 'RafCallback \| undefined' is not assignable to type 'Function'. Type 'undefined' is not assignable to type 'Function'. Type 'QueuedLoadModule \| undefined' is not assignable to type 'QueuedLoadModule'. Type 'undefined' is not assignable to type 'QueuedLoadModule'. Type 'null' is not assignable to type 'ElementHandle'. Type 'null' is not assignable to type 'E2EPageInternal'. Type 'ElementHandle \| null' is not assignable to type 'ElementHandle'. Type 'null' is not assignable to type 'ElementHandle'. Type 'null' is not assignable to type 'Promise<JSHandle>'. Type '(a?: any, b?: any) => Promise<ScreenshotDiff \| undefined>' is not assignable to type '{ (): Promise; (description: string): Promise; (opts: ScreenshotOptions): Promise<...>; (description: string, opts: ScreenshotOptions): Promise<...>; }'. Type 'Promise<ScreenshotDiff \| undefined>' is not assignable to type 'Promise'. Type 'ScreenshotDiff \| undefined' is not assignable to type 'ScreenshotDiff'. Type 'undefined' is not assignable to type 'ScreenshotDiff'. Type 'null' is not assignable to type 'Function \| undefined'. Type 'null' is not assignable to type 'CompilerWatcher'. Type 'null' is not assignable to type 'Promise'. Type 'Browser \| null' is not assignable to type 'Browser'. Type 'null' is not assignable to type 'Browser'. Type 'null' is not assignable to type 'Config'. Type 'null' is not assignable to type 'Browser'. Type 'null' is not assignable to type 'SourceMap'. Type 'null' is not assignable to type 'PackageJsonData'. Type 'null' is not assignable to type '{ [moduleId: string]: string; } \| undefined'.
TS2531	200	Error messages Object is possibly 'null'.
TS2454	47	Error messages Variable 'pkgJsonData' is used before being assigned. Variable 'cmp' is used before being assigned. Variable 'minifyOpts' is used before being assigned. Variable 'workerCtrl' is used before being assigned. Variable 'timespan' is used before being assigned. Variable 'content' is used before being assigned. Variable 'compilerExe' is used before being assigned. Variable 'outputText' is used before being assigned. Variable 'importResolvedFile' is used before being assigned. Variable 'win' is used before being assigned. Variable 'attrName' is used before being assigned. Variable 'oldValue' is used before being assigned. Variable 'newValue' is used before being assigned. Variable 'hostId' is used before being assigned. Variable 'promise' is used before being assigned. Variable 'textContent' is used before being assigned. Variable 'resolve' is used before being assigned. Variable 'opts' is used before being assigned.
TS2722	43	Error messages Cannot invoke an object which is possibly 'undefined'.
TS2352	20	Error messages Conversion of type 'null' to type 'string' may be a mistake because neither type sufficiently overlaps with the other. If this was intentional, convert the expression to 'unknown' first. Conversion of type 'null' to type 'CompilerSystem' may be a mistake because neither type sufficiently overlaps with the other. If this was intentional, convert the expression to 'unknown' first. Conversion of type 'null' to type 'string[]' may be a mistake because neither type sufficiently overlaps with the other. If this was intentional, convert the expression to 'unknown' first. Conversion of type '{ cmps: never[]; }' to type 'Module' may be a mistake because neither type sufficiently overlaps with the other. If this was intentional, convert the expression to 'unknown' first. Type '{ cmps: never[]; }' is missing the following properties from type 'Module': coreRuntimeApis, collectionName, dtsFilePath, excludeFromCollection, and 27 more. Conversion of type 'null' to type 'ScreenshotCache' may be a mistake because neither type sufficiently overlaps with the other. If this was intentional, convert the expression to 'unknown' first.
TS2769	18	Error messages No overload matches this call. Overload 1 of 2, '(o: {}): string[]', gave the following error. Argument of type 'BuildResultsComponentGraph \| undefined' is not assignable to parameter of type '{}'. Type 'undefined' is not assignable to type '{}'. Overload 2 of 2, '(o: object): string[]', gave the following error. Argument of type 'BuildResultsComponentGraph \| undefined' is not assignable to parameter of type 'object'. Type 'undefined' is not assignable to type 'object'. No overload matches this call. Overload 1 of 4, '(object: {}, method: never): SpyInstance<never, never>', gave the following error. Argument of type 'Logger \| undefined' is not assignable to parameter of type '{}'. Type 'undefined' is not assignable to type '{}'. Overload 2 of 4, '(object: {}, method: never): SpyInstance<never, never>', gave the following error. Argument of type 'Logger \| undefined' is not assignable to parameter of type '{}'. Type 'undefined' is not assignable to type '{}'. No overload matches this call. Overload 1 of 4, '(object: {}, method: never): SpyInstance<never, never>', gave the following error. Argument of type 'CompilerSystem \| undefined' is not assignable to parameter of type '{}'. Type 'undefined' is not assignable to type '{}'. Overload 2 of 4, '(object: {}, method: never): SpyInstance<never, never>', gave the following error. Argument of type 'CompilerSystem \| undefined' is not assignable to parameter of type '{}'. Type 'undefined' is not assignable to type '{}'. No overload matches this call. Overload 1 of 2, '(type: keyof DocumentEventMap, listener: (this: Document, ev: PointerEvent \| MouseEvent \| UIEvent \| Event \| ErrorEvent \| ... 13 more ... \| WheelEvent) => any, options?: boolean \| ... 1 more ... \| undefined): void', gave the following error. Argument of type '"e"' is not assignable to parameter of type 'keyof DocumentEventMap'. Overload 2 of 2, '(type: string, listener: EventListenerOrEventListenerObject, options?: boolean \| AddEventListenerOptions \| undefined): void', gave the following error. Argument of type 'null' is not assignable to parameter of type 'EventListenerOrEventListenerObject'. No overload matches this call. Overload 1 of 2, '(...items: ConcatArray[]): HostRule[]', gave the following error. Argument of type 'HostRule[] \| undefined' is not assignable to parameter of type 'ConcatArray'. Type 'undefined' is not assignable to type 'ConcatArray'. Overload 2 of 2, '(...items: (HostRule \| ConcatArray)[]): HostRule[]', gave the following error. Argument of type 'HostRule[] \| undefined' is not assignable to parameter of type 'HostRule \| ConcatArray'. Type 'undefined' is not assignable to type 'HostRule \| ConcatArray'. No overload matches this call. The last overload gave the following error. Argument of type 'string \| null' is not assignable to parameter of type '(substring: string, ...args: any[]) => string'. Type 'null' is not assignable to type '(substring: string, ...args: any[]) => string'. No overload matches this call. The last overload gave the following error. Argument of type 'string \| null' is not assignable to parameter of type 'string \| number \| boolean \| PseudoBigInt'. Type 'null' is not assignable to type 'string \| number \| boolean \| PseudoBigInt'. No overload matches this call. Overload 1 of 2, '(configFileName: string, optionsToExtend: CompilerOptions \| undefined, system: System, createProgram?: CreateProgram \| undefined, reportDiagnostic?: DiagnosticReporter \| undefined, reportWatchStatus?: WatchStatusReporter \| undefined, watchOptionsToExtend?: WatchOptions \| undefined, extraFileExtensions?: readonly FileExtensionInfo[] \| undefined): WatchCompilerHostOfConfigFile<...>', gave the following error. Argument of type 'string \| undefined' is not assignable to parameter of type 'string'. Type 'undefined' is not assignable to type 'string'. Overload 2 of 2, '(rootFiles: string[], options: CompilerOptions, system: System, createProgram?: CreateProgram \| undefined, reportDiagnostic?: DiagnosticReporter \| undefined, reportWatchStatus?: WatchStatusReporter \| undefined, projectReferences?: readonly ProjectReference[] \| undefined, watchOptions?: WatchOptions \| undefined): WatchCompilerHostOfFilesAndCompilerOptions<...>', gave the following error. Argument of type 'string \| undefined' is not assignable to parameter of type 'string[]'. Type 'undefined' is not assignable to type 'string[]'. No overload matches this call. Overload 1 of 2, '(timeoutId: Timeout): void', gave the following error. Argument of type 'Timeout \| null' is not assignable to parameter of type 'Timeout'. Type 'null' is not assignable to type 'Timeout'. Overload 2 of 2, '(handle?: number \| undefined): void', gave the following error. Argument of type 'Timeout \| null' is not assignable to parameter of type 'number \| undefined'. Type 'null' is not assignable to type 'number \| undefined'. No overload matches this call. Overload 1 of 2, '(timeoutId: Timeout): void', gave the following error. Argument of type 'Timeout \| null' is not assignable to parameter of type 'Timeout'. Type 'null' is not assignable to type 'Timeout'. Overload 2 of 2, '(handle?: number \| undefined): void', gave the following error. Argument of type 'Timeout \| null' is not assignable to parameter of type 'number \| undefined'. No overload matches this call. Overload 1 of 3, '(p: string, encoding: "utf8"): Promise', gave the following error. Argument of type 'string \| undefined' is not assignable to parameter of type 'string'. Type 'undefined' is not assignable to type 'string'. Overload 2 of 3, '(p: string, encoding: "binary"): Promise', gave the following error. Argument of type 'string \| undefined' is not assignable to parameter of type 'string'. Type 'undefined' is not assignable to type 'string'. No overload matches this call. Overload 1 of 2, '(values: [] \| readonly unknown[]): Promise<unknown[] \| []>', gave the following error. Argument of type 'Promise[] \| undefined' is not assignable to parameter of type '[] \| readonly unknown[]'. Type 'undefined' is not assignable to type '[] \| readonly unknown[]'. Overload 2 of 2, '(values: Iterable<void \| PromiseLike>): Promise<void[]>', gave the following error. Argument of type 'Promise[] \| undefined' is not assignable to parameter of type 'Iterable<void \| PromiseLike>'. Type 'undefined' is not assignable to type 'Iterable<void \| PromiseLike>'. No overload matches this call. Overload 1 of 2, '(o: {}): string[]', gave the following error. Argument of type 'TestingConfig \| undefined' is not assignable to parameter of type '{}'. Type 'undefined' is not assignable to type '{}'. Overload 2 of 2, '(o: object): string[]', gave the following error. Argument of type 'TestingConfig \| undefined' is not assignable to parameter of type 'object'. Type 'undefined' is not assignable to type 'object'.
TS2790	15	Error messages The operand of a 'delete' operator must be optional.
TS2538	7	Error messages Type 'undefined' cannot be used as an index type. Type 'null' cannot be used as an index type.
TS2416	4	Error messages Property 'get' in type 'Cache' is not assignable to the same property in base type 'Cache'. Type '(key: string) => Promise<string \| null>' is not assignable to type '(key: string) => Promise'. Type 'Promise<string \| null>' is not assignable to type 'Promise'. Type 'string \| null' is not assignable to type 'string'. Type 'null' is not assignable to type 'string'. Property 'getMemoryStats' in type 'Cache' is not assignable to the same property in base type 'Cache'. Type '() => string \| null' is not assignable to type '() => string'. Type 'string \| null' is not assignable to type 'string'. Type 'null' is not assignable to type 'string'. Property 'find' in type 'E2EElement' is not assignable to the same property in base type 'E2EElementInternal'. Type '(selector: string) => Promise<E2EElement \| null>' is not assignable to type '(selector: FindSelector) => Promise'. Type 'Promise<E2EElement \| null>' is not assignable to type 'Promise'. Type 'E2EElement \| null' is not assignable to type 'E2EElement'. Type 'null' is not assignable to type 'E2EElement'. Property 'findAll' in type 'E2EElement' is not assignable to the same property in base type 'E2EElementInternal'. Type '(selector: string) => Promise<E2EElement[]>' is not assignable to type '(selector: FindSelector) => Promise<E2EElement[]>'. Type 'Promise<import("/home/runner/work/stencil/stencil/src/testing/puppeteer/puppeteer-element").E2EElement[]>' is not assignable to type 'Promise<import("/home/runner/work/stencil/stencil/src/testing/puppeteer/puppeteer-declarations").E2EElement[]>'. Type 'import("/home/runner/work/stencil/stencil/src/testing/puppeteer/puppeteer-element").E2EElement[]' is not assignable to type 'import("/home/runner/work/stencil/stencil/src/testing/puppeteer/puppeteer-declarations").E2EElement[]'. Type 'import("/home/runner/work/stencil/stencil/src/testing/puppeteer/puppeteer-element").E2EElement' is not assignable to type 'import("/home/runner/work/stencil/stencil/src/testing/puppeteer/puppeteer-declarations").E2EElement'. The types returned by 'find(...)' are incompatible between these types. Type 'Promise<E2EElement \| null>' is not assignable to type 'Promise'.
TS2533	3	Error messages Object is possibly 'null' or 'undefined'.
TS2488	2	Error messages Type 'Diagnostic[] \| undefined' must have a 'Symbol.iterator' method that returns an iterator. Type 'string[] \| undefined' must have a 'Symbol.iterator' method that returns an iterator.
TS2684	1	Error messages The 'this' context of type 'ResolveIdHook \| undefined' is not assignable to method's 'this' of type 'Function'. Type 'undefined' is not assignable to type 'Function'.
TS2464	1	Error messages A computed property name must be of type 'string', 'number', 'symbol', or 'any'.
TS2430	1	Error messages Interface 'SerializeOpts' incorrectly extends interface 'SerializeCssOptions'. Types of property 'usedSelectors' are incompatible. Type 'UsedSelectors \| null' is not assignable to type 'UsedSelectors \| undefined'. Type 'null' is not assignable to type 'UsedSelectors \| undefined'.
TS2339	1	Error messages Property 'kind' does not exist on type 'never'.
TS2774	1	Error messages This condition will always return true since this function is always defined. Did you mean to call it instead?

Unused exports report

There are 19 unused exports on this PR. That's the same number of errors on main, so at least we're not creating new ones!

Unused exports

File	Line	Identifier
src/version.ts	8	transpilerId
src/screenshot/screenshot-fs.ts	18	readScreenshotData
src/utils/index.ts	85	XML_NS
src/utils/index.ts	96	isDefined
src/utils/index.ts	97	isUndefined
src/utils/index.ts	123	ParsePackageJsonResult
src/cli/telemetry/helpers.ts	13	TERMINAL_INFO
src/compiler/app-core/app-data.ts	3	BUILD
src/compiler/app-core/app-data.ts	88	Env
src/compiler/app-core/app-data.ts	90	NAMESPACE
src/compiler/fs-watch/fs-watch-rebuild.ts	110	updateCacheFromRebuild
src/compiler/prerender/host-config.ts	4	generateHostConfig
src/compiler/prerender/host-config.ts	276	DEFAULT_MODE
src/compiler/style/css-imports.ts	247	replaceNodeModuleUrl
src/testing/platform/testing-platform.ts	28	cssVarShim
src/testing/puppeteer/puppeteer-declarations.ts	513	WaitForEventOptions
src/client/polyfills/css-shim/utils.ts	1	GLOBAL_SCOPE
src/compiler/config/outputs/validate-collection.ts	16	getCollectionDistDir
src/compiler/sys/fetch/fetch-utils.ts	34	getStencilInternalDtsUrl

alicewriteswrongs

just pointing out a few things

alicewriteswrongs · 2022-06-28T16:14:28Z

src/cli/config-flags.ts

+  'all',
+  'automock',
+  'bail',
+  // 'cache', Stencil already supports this argument


some of these options are dupes of options that Stencil already supports. I thought we might want to keep them in the list here just so that the list is, in the code at least, a complete list of the Jest CLI arguments. Open to just deleting these commented-out lines as well though!

alicewriteswrongs · 2022-06-28T16:14:57Z

src/cli/config-flags.ts

@@ -35,12 +35,65 @@ export const BOOLEAN_CLI_ARGS = [
  'verbose',
  'version',
  'watch',
+
+  // JEST CLI OPTIONS


I separated these with a little comment heading for ease of editing later if / when Jest's supported arguments change

please add outputFile

@deleonio FWIW, outputFile is listed here - https://github.com/ionic-team/stencil/pull/3444/files#diff-020f86cbdec56ce2dcab01f41db9a6f8ec09c1f6c081b45bff6ca4661ddcf315R125

alicewriteswrongs · 2022-06-28T16:15:40Z

src/cli/config-flags.ts

+ * `maxWorkers` is an argument which is used both by Stencil _and_ by Jest,
+ * which means that we need to support parsing both string and number values.
+ */
+export const STRING_NUMBER_CLI_ARGS = ['maxWorkers'] as const;


maxWorkers can according to the Jest docs be either a string or a number, so we need to introduce a new argument type to support that.

alicewriteswrongs · 2022-06-28T16:17:26Z

src/cli/parse-flags.ts

+ * a given string we conclude that the string should be parsed as a
+ * string literal, rather than using `parseInt` to convert it to a number.
+ */
+const CLI_ARG_STRING_REGEX = /[^\d\.]+/g;


I think this should be pretty solid, and I don't think we need to support negative numbers, separators like _ or ,, etc. But always good to be sure with regexes!

It's a admittedly a bit of an edge case given that we're talking about max-workers only ATM, but consider support for scientific notation here - 4E0, 4e2, 4.2E3, etc., which I think would turn the regex into something like:

Suggested change

const CLI_ARG_STRING_REGEX = /[^\d\.]+/g;

const CLI_ARG_STRING_REGEX = /[^\d\.(E|e)]+/g

(I'm pretty sure JS disallows 4E0.2 and the like)

ooo I forgot that JS had scientific notation support! will add that and a test case for it

alicewriteswrongs · 2022-06-28T16:19:10Z

src/cli/test/parse-flags.spec.ts

    expect(flags.ci).toBe(true);
  });

+  describe.each(BOOLEAN_CLI_ARGS)('should parse boolean flag %s', (cliArg) => {


these comprehensive tests of all the supported args serve as regression tests against duplicating any of the arguments in the arrays - because of the way that the arg parsing algorithm works having a dupe will result in a value like [true, true] being set on ConfigFlags. We want to make sure that can't happen, so we have some simple tests here.

makes sense, would you mind adding this as a comment right above this describe block? It makes sense to me, but I'm not sure if that would've been clear on the first read through of the tests + code.

rwaskiewicz

All in all looks good, just a few minor comments

rwaskiewicz · 2022-06-28T18:33:00Z

src/cli/config-flags.ts

+  // 'verbose', Stencil alrerady supports this argument
+  // 'version', Stencil alrerady supports this argument
+  // 'watch', Stencil alrerady supports this argument


I'm OK with the duplication in these two lists, I think that makes sense. Just a small typo:

Suggested change

// 'verbose', Stencil alrerady supports this argument

// 'version', Stencil alrerady supports this argument

// 'watch', Stencil alrerady supports this argument

// 'verbose', Stencil already supports this argument

// 'version', Stencil already supports this argument

// 'watch', Stencil already supports this argument

omg alrerady 😅

rwaskiewicz · 2022-06-28T18:43:44Z

src/cli/parse-flags.ts

+ * a given string we conclude that the string should be parsed as a
+ * string literal, rather than using `parseInt` to convert it to a number.
+ */
+const CLI_ARG_STRING_REGEX = /[^\d\.]+/g;


It's a admittedly a bit of an edge case given that we're talking about max-workers only ATM, but consider support for scientific notation here - 4E0, 4e2, 4.2E3, etc., which I think would turn the regex into something like:

Suggested change

const CLI_ARG_STRING_REGEX = /[^\d\.]+/g;

const CLI_ARG_STRING_REGEX = /[^\d\.(E|e)]+/g

(I'm pretty sure JS disallows 4E0.2 and the like)

rwaskiewicz · 2022-06-28T18:47:52Z

src/cli/test/parse-flags.spec.ts

    expect(flags.ci).toBe(true);
  });

+  describe.each(BOOLEAN_CLI_ARGS)('should parse boolean flag %s', (cliArg) => {


makes sense, would you mind adding this as a comment right above this describe block? It makes sense to me, but I'm not sure if that would've been clear on the first read through of the tests + code.

This adds explicit support to our CLI argument parsing code for Jest's CLI arguments by adding entries to the arrays we use to parse 'known' arguments.

rwaskiewicz · 2022-06-28T20:00:15Z

@alicewriteswrongs looks like Lint & Format is failing - can you PTAL?

This adds explicit support to our CLI argument parsing code for Jest's CLI arguments by adding entries to the arrays we use to parse 'known' arguments. We declare all the Jest CLI arguments (as pulled from [the file in which they're implemented](https://github.com/facebook/jest/blob/main/packages/jest-cli/src/cli/args.ts)) in `src/cli/config-flags.ts`, so all of these flags are now fully-supported 'first class' (if you will) CLI flags.

deleonio

Thx

deleonio · 2022-07-14T14:15:47Z

src/cli/config-flags.ts

@@ -35,12 +35,65 @@ export const BOOLEAN_CLI_ARGS = [
  'verbose',
  'version',
  'watch',
+
+  // JEST CLI OPTIONS


please add outputFile

This adjusts the conversion of CLI args (parsed by our `cli/parse-flags` module) to arguments for Jest to fix a problematic situation when passing an argument which is not recognized by our `parse-flags` module. A common pattern in Jest is to use a filename filter to narrow which tests are matched and run by the test runner, like so: ``` jest -- some-file-name.test.ts ``` Our CLI arg parsing module recognizes all Jest CLI args (like `--json`, `--watch`, and more) as 'first class' args and parses them into a `ConfigFlags` object. For the arguments shown above (`'--'`, `'some-file-name.test.ts'`), however, it will _not_ recognize them as first-class arguments and will instead preserve them in the `unknownArgs` array on the `ConfigFlags` object. The flags (known and unknown) parsed by the `parse-flags` module are then converted into settings for Jest using the `buildJestArgv` function. Prior to this commit we took the known and unknown args off of the `ConfigFlags` object like so: ```ts const args = [...config.flags.unknownArgs.slice(), ...config.flags.knownArgs.slice()]; ``` If a filename match pattern is used alone (as in the example above) this will result in an array that looks like this: ```ts const args = ['--', 'some-file-name.test.ts']; ``` That will translate correctly to what we want to communicate to Jest, and it will only run test files which match the pattern. The problem comes in when a filename match pattern is used in conjunction with a boolean flag, like so: ``` jest --json -- some-file-name.test.ts ``` Or, in a Stencil context, doing something like this: ``` npx stencil test --spec --json -- my-component.spec.ts ``` which would result in the following `args` array being passed to Jest: ```ts const args = [ '--', 'some-file-name.test.ts', '--spec', '--json', ]; ``` Jest expects that `'--'` is _only_ followed by filename patterns and that all boolean flags like `--json` are before it in the argument list, so it will interpret this array as trying to match filenames which contain the string `'--json'`, rather than setting the `.json` flag on the Jest config. The solution to this is to switch the order of the arguments passed to Jest, passing the known arguments _first_, followed by the unknown arguments. Note: this used to work properly before #3444 because a flag like `--json` would have been stuck in the `unknownArgs` array, so the argument array passed to Jest would have looked like: ```ts const args = [ '--json', '--', 'some-file-name.test.ts' ]; ``` When we added explicit support for all Jest args this behavior was broken. This commit adds a regression test which fails without the fix (changing the argument order) and adds the fix as well.

alicewriteswrongs requested a review from a team June 28, 2022 16:13

alicewriteswrongs commented Jun 28, 2022

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rwaskiewicz suggested changes Jun 28, 2022

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alicewriteswrongs added 10 commits June 28, 2022 15:32

fix(cli): add explicit support for Jest CLI arguments

ad90d58

This adds explicit support to our CLI argument parsing code for Jest's CLI arguments by adding entries to the arrays we use to parse 'known' arguments.

add support for a CLI argument which might have a string or number

2b01727

iron out a little thing w/ string vs number

7f1ef5f

change to silly fake args since those are now included as jest args

1df876c

prettier

9eca7dc

fix issue with some flags being double-included

a1d7b66

alphabetize those

5187584

review feedback

b63f57e

add support for scientific notation

723df32

add a comment to explain that

695d3d7

alicewriteswrongs force-pushed the ap/jest-cli-args branch from 8704652 to 695d3d7 Compare June 28, 2022 19:32

rwaskiewicz approved these changes Jun 28, 2022

View reviewed changes

fmt!!!!

030b699

rwaskiewicz merged commit 700b3a9 into main Jun 28, 2022

rwaskiewicz deleted the ap/jest-cli-args branch June 28, 2022 20:53

rwaskiewicz mentioned this pull request Jul 11, 2022

bug: jest cli - no longer able to run individual unit tests #3276

Closed

deleonio mentioned this pull request Jul 14, 2022

bug: Since v1.7.1 our tests doesn't work anymore [fix with PR #3472] #3471

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deleonio reviewed Jul 14, 2022

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alicewriteswrongs mentioned this pull request Jul 20, 2022

bug: broken support for yarn executing tests #3482

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alicewriteswrongs mentioned this pull request Oct 18, 2022

fix(jest): adjust conversion of CLI args to Jest args #3730

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fix(cli): add explicit support for Jest CLI arguments #3444

fix(cli): add explicit support for Jest CLI arguments #3444

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	const CLI_ARG_STRING_REGEX = /[^\d\.]+/g;
	const CLI_ARG_STRING_REGEX = /[^\d\.(E\|e)]+/g

fix(cli): add explicit support for Jest CLI arguments #3444

fix(cli): add explicit support for Jest CLI arguments #3444

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alicewriteswrongs commented Jun 28, 2022

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github-actions bot commented Jun 28, 2022

--strictNullChecks error report

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`--strictNullChecks` error report

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