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cli-engine.js
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cli-engine.js
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/**
* @fileoverview Tests for CLIEngine.
* @author Nicholas C. Zakas
*/
"use strict";
//------------------------------------------------------------------------------
// Requirements
//------------------------------------------------------------------------------
const assert = require("chai").assert,
path = require("path"),
sinon = require("sinon"),
shell = require("shelljs"),
fs = require("fs"),
os = require("os"),
hash = require("../../../lib/cli-engine/hash"),
{
Legacy: {
CascadingConfigArrayFactory
}
} = require("@eslint/eslintrc"),
{ unIndent, createCustomTeardown } = require("../../_utils");
const proxyquire = require("proxyquire").noCallThru().noPreserveCache();
const fCache = require("file-entry-cache");
//------------------------------------------------------------------------------
// Tests
//------------------------------------------------------------------------------
describe("CLIEngine", () => {
const examplePluginName = "eslint-plugin-example",
examplePluginNameWithNamespace = "@eslint/eslint-plugin-example",
examplePlugin = {
rules: {
"example-rule": require("../../fixtures/rules/custom-rule"),
"make-syntax-error": require("../../fixtures/rules/make-syntax-error-rule")
}
},
examplePreprocessorName = "eslint-plugin-processor",
originalDir = process.cwd(),
fixtureDir = path.resolve(fs.realpathSync(os.tmpdir()), "eslint/fixtures");
/** @type {import("../../../lib/cli-engine").CLIEngine} */
let CLIEngine;
/** @type {import("../../../lib/cli-engine/cli-engine").getCLIEngineInternalSlots} */
let getCLIEngineInternalSlots;
/**
* Returns the path inside of the fixture directory.
* @param {...string} args file path segments.
* @returns {string} The path inside the fixture directory.
* @private
*/
function getFixturePath(...args) {
const filepath = path.join(fixtureDir, ...args);
try {
return fs.realpathSync(filepath);
} catch {
return filepath;
}
}
/**
* Create the CLIEngine object by mocking some of the plugins
* @param {Object} options options for CLIEngine
* @returns {CLIEngine} engine object
* @private
*/
function cliEngineWithPlugins(options) {
return new CLIEngine(options, {
preloadedPlugins: {
[examplePluginName]: examplePlugin,
[examplePluginNameWithNamespace]: examplePlugin,
[examplePreprocessorName]: require("../../fixtures/processors/custom-processor")
}
});
}
// copy into clean area so as not to get "infected" by this project's .eslintrc files
before(function() {
/*
* GitHub Actions Windows and macOS runners occasionally exhibit
* extremely slow filesystem operations, during which copying fixtures
* exceeds the default test timeout, so raise it just for this hook.
* Mocha uses `this` to set timeouts on an individual hook level.
*/
this.timeout(60 * 1000); // eslint-disable-line no-invalid-this -- Mocha API
shell.mkdir("-p", fixtureDir);
shell.cp("-r", "./tests/fixtures/.", fixtureDir);
});
beforeEach(() => {
({ CLIEngine, getCLIEngineInternalSlots } = require("../../../lib/cli-engine/cli-engine"));
});
after(() => {
shell.rm("-r", fixtureDir);
});
describe("new CLIEngine(options)", () => {
it("the default value of 'options.cwd' should be the current working directory.", () => {
process.chdir(__dirname);
try {
const engine = new CLIEngine();
const internalSlots = getCLIEngineInternalSlots(engine);
assert.strictEqual(internalSlots.options.cwd, __dirname);
} finally {
process.chdir(originalDir);
}
});
it("should report one fatal message when given a path by --ignore-path that is not a file when ignore is true.", () => {
assert.throws(() => {
// eslint-disable-next-line no-new -- Testing synchronous throwing
new CLIEngine({ ignorePath: fixtureDir });
}, `Cannot read .eslintignore file: ${fixtureDir}\nError: EISDIR: illegal operation on a directory, read`);
});
// https://github.com/eslint/eslint/issues/2380
it("should not modify baseConfig when format is specified", () => {
const customBaseConfig = { root: true };
new CLIEngine({ baseConfig: customBaseConfig, format: "foo" }); // eslint-disable-line no-new -- Test side effects
assert.deepStrictEqual(customBaseConfig, { root: true });
});
});
describe("executeOnText()", () => {
let engine;
describe("when using local cwd .eslintrc", () => {
const { prepare, cleanup, getPath } = createCustomTeardown({
cwd: path.join(os.tmpdir(), "eslint/multiple-rules-config"),
files: {
".eslintrc.json": {
root: true,
rules: {
quotes: 2,
"no-var": 2,
"eol-last": 2,
strict: [2, "global"],
"no-unused-vars": 2
},
env: {
node: true
}
}
}
});
beforeEach(prepare);
afterEach(cleanup);
it("should report the total and per file errors", () => {
engine = new CLIEngine({ cwd: getPath() });
const report = engine.executeOnText("var foo = 'bar';");
assert.strictEqual(report.results.length, 1);
assert.strictEqual(report.errorCount, 5);
assert.strictEqual(report.warningCount, 0);
assert.strictEqual(report.fatalErrorCount, 0);
assert.strictEqual(report.fixableErrorCount, 3);
assert.strictEqual(report.fixableWarningCount, 0);
assert.strictEqual(report.results[0].messages.length, 5);
assert.strictEqual(report.results[0].messages[0].ruleId, "strict");
assert.strictEqual(report.results[0].messages[1].ruleId, "no-var");
assert.strictEqual(report.results[0].messages[2].ruleId, "no-unused-vars");
assert.strictEqual(report.results[0].messages[3].ruleId, "quotes");
assert.strictEqual(report.results[0].messages[4].ruleId, "eol-last");
assert.strictEqual(report.results[0].fixableErrorCount, 3);
assert.strictEqual(report.results[0].fixableWarningCount, 0);
assert.strictEqual(report.results[0].suppressedMessages.length, 0);
});
it("should report the total and per file warnings", () => {
engine = new CLIEngine({
cwd: getPath(),
rules: {
quotes: 1,
"no-var": 1,
"eol-last": 1,
strict: 1,
"no-unused-vars": 1
}
});
const report = engine.executeOnText("var foo = 'bar';");
assert.strictEqual(report.results.length, 1);
assert.strictEqual(report.errorCount, 0);
assert.strictEqual(report.warningCount, 5);
assert.strictEqual(report.fixableErrorCount, 0);
assert.strictEqual(report.fixableWarningCount, 3);
assert.strictEqual(report.results[0].messages.length, 5);
assert.strictEqual(report.results[0].messages[0].ruleId, "strict");
assert.strictEqual(report.results[0].messages[1].ruleId, "no-var");
assert.strictEqual(report.results[0].messages[2].ruleId, "no-unused-vars");
assert.strictEqual(report.results[0].messages[3].ruleId, "quotes");
assert.strictEqual(report.results[0].messages[4].ruleId, "eol-last");
assert.strictEqual(report.results[0].fixableErrorCount, 0);
assert.strictEqual(report.results[0].fixableWarningCount, 3);
assert.strictEqual(report.results[0].suppressedMessages.length, 0);
});
});
it("should report one message when using specific config file", () => {
engine = new CLIEngine({
configFile: "fixtures/configurations/quotes-error.json",
useEslintrc: false,
cwd: getFixturePath("..")
});
const report = engine.executeOnText("var foo = 'bar';");
assert.strictEqual(report.results.length, 1);
assert.strictEqual(report.errorCount, 1);
assert.strictEqual(report.warningCount, 0);
assert.strictEqual(report.fixableErrorCount, 1);
assert.strictEqual(report.fixableWarningCount, 0);
assert.strictEqual(report.results[0].messages.length, 1);
assert.strictEqual(report.results[0].messages[0].ruleId, "quotes");
assert.isUndefined(report.results[0].messages[0].output);
assert.strictEqual(report.results[0].errorCount, 1);
assert.strictEqual(report.results[0].fixableErrorCount, 1);
assert.strictEqual(report.results[0].warningCount, 0);
assert.strictEqual(report.results[0].suppressedMessages.length, 0);
});
it("should report the filename when passed in", () => {
engine = new CLIEngine({
ignore: false,
cwd: getFixturePath()
});
const report = engine.executeOnText("var foo = 'bar';", "test.js");
assert.strictEqual(report.results[0].filePath, getFixturePath("test.js"));
assert.strictEqual(report.results[0].suppressedMessages.length, 0);
});
it("should return a warning when given a filename by --stdin-filename in excluded files list if warnIgnored is true", () => {
engine = new CLIEngine({
ignorePath: getFixturePath(".eslintignore"),
cwd: getFixturePath("..")
});
const report = engine.executeOnText("var bar = foo;", "fixtures/passing.js", true);
assert.strictEqual(report.results.length, 1);
assert.strictEqual(report.errorCount, 0);
assert.strictEqual(report.warningCount, 1);
assert.strictEqual(report.fatalErrorCount, 0);
assert.strictEqual(report.fixableErrorCount, 0);
assert.strictEqual(report.fixableWarningCount, 0);
assert.strictEqual(report.results[0].filePath, getFixturePath("passing.js"));
assert.strictEqual(report.results[0].messages[0].severity, 1);
assert.strictEqual(report.results[0].messages[0].message, "File ignored because of a matching ignore pattern. Use \"--no-ignore\" to override.");
assert.isUndefined(report.results[0].messages[0].output);
assert.strictEqual(report.results[0].errorCount, 0);
assert.strictEqual(report.results[0].warningCount, 1);
assert.strictEqual(report.results[0].fatalErrorCount, 0);
assert.strictEqual(report.results[0].fixableErrorCount, 0);
assert.strictEqual(report.results[0].fixableWarningCount, 0);
assert.strictEqual(report.results[0].suppressedMessages.length, 0);
});
it("should not return a warning when given a filename by --stdin-filename in excluded files list if warnIgnored is false", () => {
engine = new CLIEngine({
ignorePath: getFixturePath(".eslintignore"),
cwd: getFixturePath("..")
});
// intentional parsing error
const report = engine.executeOnText("va r bar = foo;", "fixtures/passing.js", false);
// should not report anything because the file is ignored
assert.strictEqual(report.results.length, 0);
});
it("should suppress excluded file warnings by default", () => {
engine = new CLIEngine({
ignorePath: getFixturePath(".eslintignore"),
cwd: getFixturePath("..")
});
const report = engine.executeOnText("var bar = foo;", "fixtures/passing.js");
// should not report anything because there are no errors
assert.strictEqual(report.results.length, 0);
});
it("should return a message when given a filename by --stdin-filename in excluded files list and ignore is off", () => {
engine = new CLIEngine({
ignorePath: "fixtures/.eslintignore",
cwd: getFixturePath(".."),
ignore: false,
useEslintrc: false,
rules: {
"no-undef": 2
}
});
const report = engine.executeOnText("var bar = foo;", "fixtures/passing.js");
assert.strictEqual(report.results.length, 1);
assert.strictEqual(report.results[0].filePath, getFixturePath("passing.js"));
assert.strictEqual(report.results[0].messages[0].ruleId, "no-undef");
assert.strictEqual(report.results[0].messages[0].severity, 2);
assert.isUndefined(report.results[0].messages[0].output);
assert.strictEqual(report.results[0].suppressedMessages.length, 0);
});
it("should return a message and fixed text when in fix mode", () => {
engine = new CLIEngine({
useEslintrc: false,
fix: true,
rules: {
semi: 2
},
ignore: false,
cwd: getFixturePath()
});
const report = engine.executeOnText("var bar = foo", "passing.js");
assert.deepStrictEqual(report, {
results: [
{
filePath: getFixturePath("passing.js"),
messages: [],
suppressedMessages: [],
errorCount: 0,
warningCount: 0,
fatalErrorCount: 0,
fixableErrorCount: 0,
fixableWarningCount: 0,
output: "var bar = foo;"
}
],
errorCount: 0,
warningCount: 0,
fatalErrorCount: 0,
fixableErrorCount: 0,
fixableWarningCount: 0,
usedDeprecatedRules: [
{
ruleId: "semi",
replacedBy: []
}
]
});
});
it("correctly autofixes semicolon-conflicting-fixes", () => {
engine = new CLIEngine({
cwd: path.join(fixtureDir, ".."),
useEslintrc: false,
fix: true
});
const inputPath = getFixturePath("autofix/semicolon-conflicting-fixes.js");
const outputPath = getFixturePath("autofix/semicolon-conflicting-fixes.expected.js");
const report = engine.executeOnFiles([inputPath]);
const expectedOutput = fs.readFileSync(outputPath, "utf8");
assert.strictEqual(report.results[0].output, expectedOutput);
assert.strictEqual(report.results[0].suppressedMessages.length, 0);
});
it("correctly autofixes return-conflicting-fixes", () => {
engine = new CLIEngine({
cwd: path.join(fixtureDir, ".."),
useEslintrc: false,
fix: true
});
const inputPath = getFixturePath("autofix/return-conflicting-fixes.js");
const outputPath = getFixturePath("autofix/return-conflicting-fixes.expected.js");
const report = engine.executeOnFiles([inputPath]);
const expectedOutput = fs.readFileSync(outputPath, "utf8");
assert.strictEqual(report.results[0].output, expectedOutput);
assert.strictEqual(report.results[0].suppressedMessages.length, 0);
});
describe("Fix Types", () => {
it("should throw an error when an invalid fix type is specified", () => {
assert.throws(() => {
engine = new CLIEngine({
cwd: path.join(fixtureDir, ".."),
useEslintrc: false,
fix: true,
fixTypes: ["layou"]
});
}, /invalid fix type/iu);
});
it("should not fix any rules when fixTypes is used without fix", () => {
engine = new CLIEngine({
cwd: path.join(fixtureDir, ".."),
useEslintrc: false,
fix: false,
fixTypes: ["layout"]
});
const inputPath = getFixturePath("fix-types/fix-only-semi.js");
const report = engine.executeOnFiles([inputPath]);
assert.isUndefined(report.results[0].output);
});
it("should not fix non-style rules when fixTypes has only 'layout'", () => {
engine = new CLIEngine({
cwd: path.join(fixtureDir, ".."),
useEslintrc: false,
fix: true,
fixTypes: ["layout"]
});
const inputPath = getFixturePath("fix-types/fix-only-semi.js");
const outputPath = getFixturePath("fix-types/fix-only-semi.expected.js");
const report = engine.executeOnFiles([inputPath]);
const expectedOutput = fs.readFileSync(outputPath, "utf8");
assert.strictEqual(report.results[0].output, expectedOutput);
});
it("should not fix style or problem rules when fixTypes has only 'suggestion'", () => {
engine = new CLIEngine({
cwd: path.join(fixtureDir, ".."),
useEslintrc: false,
fix: true,
fixTypes: ["suggestion"]
});
const inputPath = getFixturePath("fix-types/fix-only-prefer-arrow-callback.js");
const outputPath = getFixturePath("fix-types/fix-only-prefer-arrow-callback.expected.js");
const report = engine.executeOnFiles([inputPath]);
const expectedOutput = fs.readFileSync(outputPath, "utf8");
assert.strictEqual(report.results[0].output, expectedOutput);
});
it("should fix both style and problem rules when fixTypes has 'suggestion' and 'layout'", () => {
engine = new CLIEngine({
cwd: path.join(fixtureDir, ".."),
useEslintrc: false,
fix: true,
fixTypes: ["suggestion", "layout"]
});
const inputPath = getFixturePath("fix-types/fix-both-semi-and-prefer-arrow-callback.js");
const outputPath = getFixturePath("fix-types/fix-both-semi-and-prefer-arrow-callback.expected.js");
const report = engine.executeOnFiles([inputPath]);
const expectedOutput = fs.readFileSync(outputPath, "utf8");
assert.strictEqual(report.results[0].output, expectedOutput);
});
it("should not throw an error when a rule doesn't have a 'meta' property", () => {
engine = new CLIEngine({
cwd: path.join(fixtureDir, ".."),
useEslintrc: false,
fix: true,
fixTypes: ["layout"],
rulePaths: [getFixturePath("rules", "fix-types-test")]
});
const inputPath = getFixturePath("fix-types/ignore-missing-meta.js");
const outputPath = getFixturePath("fix-types/ignore-missing-meta.expected.js");
const report = engine.executeOnFiles([inputPath]);
const expectedOutput = fs.readFileSync(outputPath, "utf8");
assert.strictEqual(report.results[0].output, expectedOutput);
});
it("should not throw an error when a rule is loaded after initialization with executeOnFiles()", () => {
engine = new CLIEngine({
cwd: path.join(fixtureDir, ".."),
useEslintrc: false,
fix: true,
fixTypes: ["layout"]
});
const internalSlots = getCLIEngineInternalSlots(engine);
internalSlots.linter.defineRule(
"no-program",
require(getFixturePath("rules", "fix-types-test", "no-program.js"))
);
const inputPath = getFixturePath("fix-types/ignore-missing-meta.js");
const outputPath = getFixturePath("fix-types/ignore-missing-meta.expected.js");
const report = engine.executeOnFiles([inputPath]);
const expectedOutput = fs.readFileSync(outputPath, "utf8");
assert.strictEqual(report.results[0].output, expectedOutput);
});
it("should not throw an error when a rule is loaded after initialization with executeOnText()", () => {
engine = new CLIEngine({
cwd: path.join(fixtureDir, ".."),
useEslintrc: false,
fix: true,
fixTypes: ["layout"]
});
const internalSlots = getCLIEngineInternalSlots(engine);
internalSlots.linter.defineRule(
"no-program",
require(getFixturePath("rules", "fix-types-test", "no-program.js"))
);
const inputPath = getFixturePath("fix-types/ignore-missing-meta.js");
const outputPath = getFixturePath("fix-types/ignore-missing-meta.expected.js");
const report = engine.executeOnText(fs.readFileSync(inputPath, { encoding: "utf8" }), inputPath);
const expectedOutput = fs.readFileSync(outputPath, "utf8");
assert.strictEqual(report.results[0].output, expectedOutput);
});
});
it("should return a message and omit fixed text when in fix mode and fixes aren't done", () => {
engine = new CLIEngine({
useEslintrc: false,
fix: true,
rules: {
"no-undef": 2
},
ignore: false,
cwd: getFixturePath()
});
const report = engine.executeOnText("var bar = foo", "passing.js");
assert.deepStrictEqual(report, {
results: [
{
filePath: getFixturePath("passing.js"),
messages: [
{
ruleId: "no-undef",
severity: 2,
messageId: "undef",
message: "'foo' is not defined.",
line: 1,
column: 11,
endLine: 1,
endColumn: 14,
nodeType: "Identifier"
}
],
suppressedMessages: [],
errorCount: 1,
warningCount: 0,
fatalErrorCount: 0,
fixableErrorCount: 0,
fixableWarningCount: 0,
source: "var bar = foo"
}
],
errorCount: 1,
warningCount: 0,
fatalErrorCount: 0,
fixableErrorCount: 0,
fixableWarningCount: 0,
usedDeprecatedRules: []
});
});
it("should not delete code if there is a syntax error after trying to autofix.", () => {
engine = cliEngineWithPlugins({
useEslintrc: false,
fix: true,
plugins: ["example"],
rules: {
"example/make-syntax-error": "error"
},
ignore: false,
cwd: getFixturePath()
});
const report = engine.executeOnText("var bar = foo", "test.js");
assert.deepStrictEqual(report, {
results: [
{
filePath: getFixturePath("test.js"),
messages: [
{
ruleId: null,
fatal: true,
severity: 2,
message: "Parsing error: Unexpected token is",
line: 1,
column: 19,
nodeType: null
}
],
suppressedMessages: [],
errorCount: 1,
warningCount: 0,
fatalErrorCount: 1,
fixableErrorCount: 0,
fixableWarningCount: 0,
output: "var bar = foothis is a syntax error."
}
],
errorCount: 1,
warningCount: 0,
fatalErrorCount: 1,
fixableErrorCount: 0,
fixableWarningCount: 0,
usedDeprecatedRules: []
});
});
it("should not crash even if there are any syntax error since the first time.", () => {
engine = new CLIEngine({
useEslintrc: false,
fix: true,
rules: {
"example/make-syntax-error": "error"
},
ignore: false,
cwd: getFixturePath()
});
const report = engine.executeOnText("var bar =", "test.js");
assert.deepStrictEqual(report, {
results: [
{
filePath: getFixturePath("test.js"),
messages: [
{
ruleId: null,
fatal: true,
severity: 2,
message: "Parsing error: Unexpected token",
line: 1,
column: 10,
nodeType: null
}
],
suppressedMessages: [],
errorCount: 1,
warningCount: 0,
fatalErrorCount: 1,
fixableErrorCount: 0,
fixableWarningCount: 0,
source: "var bar ="
}
],
errorCount: 1,
warningCount: 0,
fatalErrorCount: 1,
fixableErrorCount: 0,
fixableWarningCount: 0,
usedDeprecatedRules: []
});
});
it("should return source code of file in `source` property when errors are present", () => {
engine = new CLIEngine({
useEslintrc: false,
rules: { semi: 2 }
});
const report = engine.executeOnText("var foo = 'bar'");
assert.strictEqual(report.results[0].source, "var foo = 'bar'");
});
it("should return source code of file in `source` property when warnings are present", () => {
engine = new CLIEngine({
useEslintrc: false,
rules: { semi: 1 }
});
const report = engine.executeOnText("var foo = 'bar'");
assert.strictEqual(report.results[0].source, "var foo = 'bar'");
});
it("should not return a `source` property when no errors or warnings are present", () => {
engine = new CLIEngine({
useEslintrc: false,
rules: { semi: 2 }
});
const report = engine.executeOnText("var foo = 'bar';");
assert.lengthOf(report.results[0].messages, 0);
assert.isUndefined(report.results[0].source);
});
it("should not return a `source` property when fixes are applied", () => {
engine = new CLIEngine({
useEslintrc: false,
fix: true,
rules: {
semi: 2,
"no-unused-vars": 2
}
});
const report = engine.executeOnText("var msg = 'hi' + foo\n");
assert.isUndefined(report.results[0].source);
assert.strictEqual(report.results[0].output, "var msg = 'hi' + foo;\n");
});
it("should return a `source` property when a parsing error has occurred", () => {
engine = new CLIEngine({
useEslintrc: false,
rules: { eqeqeq: 2 }
});
const report = engine.executeOnText("var bar = foothis is a syntax error.\n return bar;");
assert.deepStrictEqual(report, {
results: [
{
filePath: "<text>",
messages: [
{
ruleId: null,
fatal: true,
severity: 2,
message: "Parsing error: Unexpected token is",
line: 1,
column: 19,
nodeType: null
}
],
suppressedMessages: [],
errorCount: 1,
warningCount: 0,
fatalErrorCount: 1,
fixableErrorCount: 0,
fixableWarningCount: 0,
source: "var bar = foothis is a syntax error.\n return bar;"
}
],
errorCount: 1,
warningCount: 0,
fatalErrorCount: 1,
fixableErrorCount: 0,
fixableWarningCount: 0,
usedDeprecatedRules: []
});
});
// https://github.com/eslint/eslint/issues/5547
it("should respect default ignore rules, even with --no-ignore", () => {
engine = new CLIEngine({
cwd: getFixturePath(),
ignore: false
});
const report = engine.executeOnText("var bar = foo;", "node_modules/passing.js", true);
const expectedMsg = "File ignored by default. Use \"--ignore-pattern '!node_modules/*'\" to override.";
assert.strictEqual(report.results.length, 1);
assert.strictEqual(report.results[0].filePath, getFixturePath("node_modules/passing.js"));
assert.strictEqual(report.results[0].messages[0].message, expectedMsg);
assert.strictEqual(report.results[0].suppressedMessages.length, 0);
});
// @scope for @scope/eslint-plugin
describe("(plugin shorthand)", () => {
const Module = require("module");
let originalFindPath = null;
/* eslint-disable no-underscore-dangle -- Private Node API overriding */
before(() => {
originalFindPath = Module._findPath;
Module._findPath = function(id, ...otherArgs) {
if (id === "@scope/eslint-plugin") {
return path.resolve(__dirname, "../../fixtures/plugin-shorthand/basic/node_modules/@scope/eslint-plugin/index.js");
}
return originalFindPath.call(this, id, ...otherArgs);
};
});
after(() => {
Module._findPath = originalFindPath;
});
/* eslint-enable no-underscore-dangle -- Private Node API overriding */
it("should resolve 'plugins:[\"@scope\"]' to 'node_modules/@scope/eslint-plugin'.", () => {
engine = new CLIEngine({ cwd: getFixturePath("plugin-shorthand/basic") });
const report = engine.executeOnText("var x = 0", "index.js").results[0];
assert.strictEqual(report.filePath, getFixturePath("plugin-shorthand/basic/index.js"));
assert.strictEqual(report.messages[0].ruleId, "@scope/rule");
assert.strictEqual(report.messages[0].message, "OK");
assert.strictEqual(report.suppressedMessages.length, 0);
});
it("should resolve 'extends:[\"plugin:@scope/recommended\"]' to 'node_modules/@scope/eslint-plugin'.", () => {
engine = new CLIEngine({ cwd: getFixturePath("plugin-shorthand/extends") });
const report = engine.executeOnText("var x = 0", "index.js").results[0];
assert.strictEqual(report.filePath, getFixturePath("plugin-shorthand/extends/index.js"));
assert.strictEqual(report.messages[0].ruleId, "@scope/rule");
assert.strictEqual(report.messages[0].message, "OK");
assert.strictEqual(report.suppressedMessages.length, 0);
});
});
it("should warn when deprecated rules are found in a config", () => {
engine = new CLIEngine({
cwd: originalDir,
useEslintrc: false,
configFile: "tests/fixtures/cli-engine/deprecated-rule-config/.eslintrc.yml"
});
const report = engine.executeOnText("foo");
assert.deepStrictEqual(
report.usedDeprecatedRules,
[{ ruleId: "indent-legacy", replacedBy: ["indent"] }]
);
assert.strictEqual(report.results[0].suppressedMessages.length, 0);
});
});
describe("executeOnFiles()", () => {
/** @type {InstanceType<import("../../../lib/cli-engine").CLIEngine>} */
let engine;
it("should use correct parser when custom parser is specified", () => {
engine = new CLIEngine({
cwd: originalDir,
ignore: false
});
const filePath = path.resolve(__dirname, "../../fixtures/configurations/parser/custom.js");
const report = engine.executeOnFiles([filePath]);
assert.strictEqual(report.results.length, 1);
assert.strictEqual(report.results[0].messages.length, 1);
assert.strictEqual(report.results[0].messages[0].message, "Parsing error: Boom!");
assert.strictEqual(report.results[0].suppressedMessages.length, 0);
});
it("should report zero messages when given a config file and a valid file", () => {
engine = new CLIEngine({
cwd: originalDir,
useEslintrc: false,
ignore: false,
overrideConfigFile: "tests/fixtures/simple-valid-project/.eslintrc.js"
});
const report = engine.executeOnFiles(["tests/fixtures/simple-valid-project/**/foo*.js"]);
assert.strictEqual(report.results.length, 2);
assert.strictEqual(report.results[0].messages.length, 0);
assert.strictEqual(report.results[1].messages.length, 0);
assert.strictEqual(report.results[0].suppressedMessages.length, 0);
});
it("should handle multiple patterns with overlapping files", () => {
engine = new CLIEngine({
cwd: originalDir,
useEslintrc: false,
ignore: false,
overrideConfigFile: "tests/fixtures/simple-valid-project/.eslintrc.js"
});
const report = engine.executeOnFiles([
"tests/fixtures/simple-valid-project/**/foo*.js",
"tests/fixtures/simple-valid-project/foo.?s",
"tests/fixtures/simple-valid-project/{foo,src/foobar}.js"
]);
assert.strictEqual(report.results.length, 2);
assert.strictEqual(report.results[0].messages.length, 0);
assert.strictEqual(report.results[0].suppressedMessages.length, 0);
assert.strictEqual(report.results[1].messages.length, 0);
assert.strictEqual(report.results[1].suppressedMessages.length, 0);
});
it("should report zero messages when given a config file and a valid file and espree as parser", () => {
engine = new CLIEngine({
parser: "espree",
parserOptions: {
ecmaVersion: 2021
},
useEslintrc: false
});
const report = engine.executeOnFiles(["lib/cli.js"]);
assert.strictEqual(report.results.length, 1);
assert.strictEqual(report.results[0].messages.length, 0);
assert.strictEqual(report.results[0].suppressedMessages.length, 0);
});
it("should report zero messages when given a config file and a valid file and esprima as parser", () => {
engine = new CLIEngine({
parser: "esprima",
useEslintrc: false
});
const report = engine.executeOnFiles(["lib/cli.js"]);
assert.strictEqual(report.results.length, 1);
assert.strictEqual(report.results[0].messages.length, 0);
assert.strictEqual(report.results[0].suppressedMessages.length, 0);
});
it("should throw an error when given a config file and a valid file and invalid parser", () => {
engine = new CLIEngine({
parser: "test11",
useEslintrc: false
});
assert.throws(() => engine.executeOnFiles(["lib/cli.js"]), "Cannot find module 'test11'");
});
it("should report zero messages when given a directory with a .js2 file", () => {
engine = new CLIEngine({
cwd: path.join(fixtureDir, ".."),
extensions: [".js2"]
});
const report = engine.executeOnFiles([getFixturePath("files/foo.js2")]);
assert.strictEqual(report.results.length, 1);
assert.strictEqual(report.results[0].messages.length, 0);
assert.strictEqual(report.results[0].suppressedMessages.length, 0);
});
it("should fall back to defaults when extensions is set to an empty array", () => {
engine = new CLIEngine({
cwd: getFixturePath("configurations"),
configFile: getFixturePath("configurations", "quotes-error.json"),
extensions: []
});
const report = engine.executeOnFiles([getFixturePath("single-quoted.js")]);
assert.strictEqual(report.results.length, 1);
assert.strictEqual(report.results[0].messages.length, 1);
assert.strictEqual(report.errorCount, 1);
assert.strictEqual(report.warningCount, 0);
assert.strictEqual(report.fixableErrorCount, 1);
assert.strictEqual(report.fixableWarningCount, 0);
assert.strictEqual(report.results[0].messages[0].ruleId, "quotes");
assert.strictEqual(report.results[0].messages[0].severity, 2);
assert.strictEqual(report.results[0].errorCount, 1);
assert.strictEqual(report.results[0].warningCount, 0);
assert.strictEqual(report.results[0].fixableErrorCount, 1);
assert.strictEqual(report.results[0].fixableWarningCount, 0);
assert.strictEqual(report.results[0].suppressedMessages.length, 0);
});
it("should report zero messages when given a directory with a .js and a .js2 file", () => {
engine = new CLIEngine({
extensions: [".js", ".js2"],
ignore: false,
cwd: getFixturePath("..")
});
const report = engine.executeOnFiles(["fixtures/files/"]);
assert.strictEqual(report.results.length, 2);
assert.strictEqual(report.results[0].messages.length, 0);
assert.strictEqual(report.results[1].messages.length, 0);
assert.strictEqual(report.results[0].suppressedMessages.length, 0);
});
it("should report zero messages when given a '**' pattern with a .js and a .js2 file", () => {