/
dts_renderer_spec.ts
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/
dts_renderer_spec.ts
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/**
* @license
* Copyright Google Inc. All Rights Reserved.
*
* Use of this source code is governed by an MIT-style license that can be
* found in the LICENSE file at https://angular.io/license
*/
import MagicString from 'magic-string';
import * as ts from 'typescript';
import {absoluteFrom, getFileSystem} from '../../../src/ngtsc/file_system';
import {TestFile, runInEachFileSystem} from '../../../src/ngtsc/file_system/testing';
import {Reexport} from '../../../src/ngtsc/imports';
import {loadTestFiles} from '../../../test/helpers';
import {Import, ImportManager} from '../../../src/ngtsc/translator';
import {DecorationAnalyzer} from '../../src/analysis/decoration_analyzer';
import {CompiledClass} from '../../src/analysis/types';
import {NgccReferencesRegistry} from '../../src/analysis/ngcc_references_registry';
import {ModuleWithProvidersAnalyzer, ModuleWithProvidersInfo} from '../../src/analysis/module_with_providers_analyzer';
import {PrivateDeclarationsAnalyzer, ExportInfo} from '../../src/analysis/private_declarations_analyzer';
import {Esm2015ReflectionHost} from '../../src/host/esm2015_host';
import {RenderingFormatter, RedundantDecoratorMap} from '../../src/rendering/rendering_formatter';
import {DtsRenderer} from '../../src/rendering/dts_renderer';
import {MockLogger} from '../helpers/mock_logger';
import {makeTestEntryPointBundle, getRootFiles} from '../helpers/utils';
class TestRenderingFormatter implements RenderingFormatter {
addImports(output: MagicString, imports: Import[], sf: ts.SourceFile) {
output.prepend('\n// ADD IMPORTS\n');
}
addExports(output: MagicString, baseEntryPointPath: string, exports: ExportInfo[]) {
output.prepend('\n// ADD EXPORTS\n');
}
addDirectExports(output: MagicString, exports: Reexport[]) {
output.prepend('\n// ADD DIRECT EXPORTS\n');
}
addConstants(output: MagicString, constants: string, file: ts.SourceFile): void {
output.prepend('\n// ADD CONSTANTS\n');
}
addDefinitions(output: MagicString, compiledClass: CompiledClass, definitions: string) {
output.prepend('\n// ADD DEFINITIONS\n');
}
addAdjacentStatements(output: MagicString, compiledClass: CompiledClass, statements: string) {
output.prepend('\n// ADD ADJACENT STATEMENTS\n');
}
removeDecorators(output: MagicString, decoratorsToRemove: RedundantDecoratorMap) {
output.prepend('\n// REMOVE DECORATORS\n');
}
rewriteSwitchableDeclarations(output: MagicString, sourceFile: ts.SourceFile): void {
output.prepend('\n// REWRITTEN DECLARATIONS\n');
}
addModuleWithProvidersParams(
output: MagicString, moduleWithProviders: ModuleWithProvidersInfo[],
importManager: ImportManager): void {
output.prepend('\n// ADD MODUlE WITH PROVIDERS PARAMS\n');
}
printStatement(): string { return 'IGNORED'; }
}
function createTestRenderer(
packageName: string, files: TestFile[], dtsFiles?: TestFile[], mappingFiles?: TestFile[]) {
const logger = new MockLogger();
loadTestFiles(files);
if (dtsFiles) {
loadTestFiles(dtsFiles);
}
if (mappingFiles) {
loadTestFiles(mappingFiles);
}
const fs = getFileSystem();
const isCore = packageName === '@angular/core';
const bundle = makeTestEntryPointBundle(
'test-package', 'esm2015', isCore, getRootFiles(files), dtsFiles && getRootFiles(dtsFiles));
const typeChecker = bundle.src.program.getTypeChecker();
const host = new Esm2015ReflectionHost(logger, isCore, typeChecker, bundle.dts);
const referencesRegistry = new NgccReferencesRegistry(host);
const decorationAnalyses =
new DecorationAnalyzer(fs, bundle, host, referencesRegistry).analyzeProgram();
const moduleWithProvidersAnalyses =
new ModuleWithProvidersAnalyzer(host, referencesRegistry, true)
.analyzeProgram(bundle.src.program);
const privateDeclarationsAnalyses =
new PrivateDeclarationsAnalyzer(host, referencesRegistry).analyzeProgram(bundle.src.program);
const testFormatter = new TestRenderingFormatter();
spyOn(testFormatter, 'addExports').and.callThrough();
spyOn(testFormatter, 'addImports').and.callThrough();
spyOn(testFormatter, 'addDefinitions').and.callThrough();
spyOn(testFormatter, 'addAdjacentStatements').and.callThrough();
spyOn(testFormatter, 'addConstants').and.callThrough();
spyOn(testFormatter, 'removeDecorators').and.callThrough();
spyOn(testFormatter, 'rewriteSwitchableDeclarations').and.callThrough();
spyOn(testFormatter, 'addModuleWithProvidersParams').and.callThrough();
spyOn(testFormatter, 'printStatement').and.callThrough();
const renderer = new DtsRenderer(testFormatter, fs, logger, host, bundle);
return {renderer,
testFormatter,
decorationAnalyses,
moduleWithProvidersAnalyses,
privateDeclarationsAnalyses,
bundle};
}
runInEachFileSystem(() => {
describe('DtsRenderer', () => {
let _: typeof absoluteFrom;
let INPUT_PROGRAM: TestFile;
let INPUT_DTS_PROGRAM: TestFile;
beforeEach(() => {
_ = absoluteFrom;
INPUT_PROGRAM = {
name: _('/node_modules/test-package/src/file.js'),
contents:
`import { Directive } from '@angular/core';\nexport class A {\n foo(x) {\n return x;\n }\n}\nA.decorators = [\n { type: Directive, args: [{ selector: '[a]' }] }\n];\n`
};
INPUT_DTS_PROGRAM = {
name: _('/typings/file.d.ts'),
contents: `export declare class A {\nfoo(x: number): number;\n}\n`
};
});
it('should render extract types into typings files', () => {
const {renderer, decorationAnalyses, privateDeclarationsAnalyses,
moduleWithProvidersAnalyses} =
createTestRenderer('test-package', [INPUT_PROGRAM], [INPUT_DTS_PROGRAM]);
const result = renderer.renderProgram(
decorationAnalyses, privateDeclarationsAnalyses, moduleWithProvidersAnalyses);
const typingsFile = result.find(f => f.path === _('/typings/file.d.ts')) !;
expect(typingsFile.contents)
.toContain(
'foo(x: number): number;\n static ɵfac: ɵngcc0.ɵɵFactoryDef<A>;\n static ɵdir: ɵngcc0.ɵɵDirectiveDefWithMeta');
});
it('should render imports into typings files', () => {
const {renderer, decorationAnalyses, privateDeclarationsAnalyses,
moduleWithProvidersAnalyses} =
createTestRenderer('test-package', [INPUT_PROGRAM], [INPUT_DTS_PROGRAM]);
const result = renderer.renderProgram(
decorationAnalyses, privateDeclarationsAnalyses, moduleWithProvidersAnalyses);
const typingsFile = result.find(f => f.path === _('/typings/file.d.ts')) !;
expect(typingsFile.contents).toContain(`\n// ADD IMPORTS\n`);
});
it('should render exports into typings files', () => {
const {renderer, decorationAnalyses, privateDeclarationsAnalyses,
moduleWithProvidersAnalyses} =
createTestRenderer('test-package', [INPUT_PROGRAM], [INPUT_DTS_PROGRAM]);
// Add a mock export to trigger export rendering
privateDeclarationsAnalyses.push({
identifier: 'ComponentB',
from: _('/node_modules/test-package/src/file.js'),
dtsFrom: _('/typings/b.d.ts')
});
const result = renderer.renderProgram(
decorationAnalyses, privateDeclarationsAnalyses, moduleWithProvidersAnalyses);
const typingsFile = result.find(f => f.path === _('/typings/file.d.ts')) !;
expect(typingsFile.contents).toContain(`\n// ADD EXPORTS\n`);
});
it('should render ModuleWithProviders type params', () => {
const {renderer, decorationAnalyses, privateDeclarationsAnalyses,
moduleWithProvidersAnalyses} =
createTestRenderer('test-package', [INPUT_PROGRAM], [INPUT_DTS_PROGRAM]);
const result = renderer.renderProgram(
decorationAnalyses, privateDeclarationsAnalyses, moduleWithProvidersAnalyses);
const typingsFile = result.find(f => f.path === _('/typings/file.d.ts')) !;
expect(typingsFile.contents).toContain(`\n// ADD MODUlE WITH PROVIDERS PARAMS\n`);
});
});
});