githubmirror/webpack

test/Stats.test.js
376 строк9 KB
Alexander Akait
test: fail tests on unexpected deprecations (#21245)
23 июн 2026, 01:28
23 июн 2026, 01:28743256f
"use strict";

require("./helpers/warmup-webpack");

const { Volume, createFsFromVolume } = require("memfs");
const expectNoDeprecations = require("./helpers/expectNoDeprecations");

/**
 * @param {import("../").Configuration} options options
 * @returns {Promise<import("../").Stats>} stats
 */
const compile = (options) =>
	/** @type {Promise<import("../").Stats>} */ (
		new Promise((resolve, reject) => {
			const webpack = require("..");

			const compiler = /** @type {import("../").Compiler} */ (webpack(options));
			compiler.outputFileSystem = /** @type {EXPECTED_ANY} */ (
				createFsFromVolume(new Volume())
			);
			compiler.run((err, stats) => {
				if (err) {
					reject(err);
				} else {
					resolve(/** @type {import("../").Stats} */ (stats));
				}
			});
		})
	);

expectNoDeprecations();

describe("Stats", () => {
	it("should work with a boolean value", async () => {
		const stats = await compile({
			context: __dirname,
			entry: "./fixtures/a"
		});
		expect(stats.toJson(false)).toMatchInlineSnapshot("Object {}");
		expect(stats.toString(false)).toMatchInlineSnapshot('""');
	});

	it("should work with a string value", async () => {
		const stats = await compile({
			context: __dirname,
			entry: "./fixtures/a"
		});
		expect(stats.toJson("none")).toMatchInlineSnapshot("Object {}");
		expect(stats.toString("none")).toMatchInlineSnapshot('""');
	});

	it("should work with an object value", async () => {
		const stats = await compile({
			context: __dirname,
			entry: "./fixtures/a"
		});
		expect(
			stats.toJson({
				all: false,
				version: false,
				errorsCount: true,
				warningsCount: true
			})
		).toMatchInlineSnapshot(`
		Object {
		  "errorsCount": 0,
		  "warningsCount": 1,
		}
	`);
		expect(
			stats.toString({
				all: false,
				version: false,
				errorsCount: true,
				warningsCount: true
			})
		).toMatchInlineSnapshot('"webpack compiled with 1 warning"');
	});

	it("should print env string in stats", async () => {
		const stats = await compile({
			context: __dirname,
			entry: "./fixtures/a"
		});
		expect(
			stats.toString(
				/** @type {import("../").StatsOptions} */ (
					/** @type {unknown} */ ({
						all: false,
						env: true,
						_env: "production"
					})
				)
			)
		).toBe('Environment (--env): "production"');
		expect(
			stats.toString(
				/** @type {import("../").StatsOptions} */ (
					/** @type {unknown} */ ({
						all: false,
						env: true,
						_env: {
							prod: ["foo", "bar"],
							baz: true
						}
					})
				)
			)
		).toBe(
			"Environment (--env): {\n" +
				'  "prod": [\n' +
				'    "foo",\n' +
				'    "bar"\n' +
				"  ],\n" +
				'  "baz": true\n' +
				"}"
		);
	});

	it("should omit all properties with all false", async () => {
		const stats = await compile({
			context: __dirname,
			entry: "./fixtures/a"
		});
		expect(
			stats.toJson({
				all: false
			})
		).toEqual({});
	});

	it("should the results of hasWarnings() be affected by ignoreWarnings", async () => {
		const stats = await compile({
			mode: "development",
			context: __dirname,
			entry: "./fixtures/ignoreWarnings/index",
			module: {
				rules: [
					{
						loader: "./fixtures/ignoreWarnings/loader"
					}
				]
			},
			ignoreWarnings: [/__mocked__warning__/]
		});
		expect(stats.hasWarnings()).toBeFalsy();
	});

	describe("chunkGroups", () => {
		it("should be empty when there is no additional chunks", async () => {
			const stats = await compile({
				context: __dirname,
				entry: {
					entryA: "./fixtures/a",
					entryB: "./fixtures/b"
				}
			});
			expect(
				stats.toJson({
					all: false,
					errorsCount: true,
					chunkGroups: true
				})
			).toMatchInlineSnapshot(`
			Object {
			  "errorsCount": 0,
			  "namedChunkGroups": Object {
			    "entryA": Object {
			      "assets": Array [
			        Object {
			          "name": "entryA.js",
			          "size": 205,
			        },
			      ],
			      "assetsSize": 205,
			      "auxiliaryAssets": undefined,
			      "auxiliaryAssetsSize": 0,
			      "childAssets": undefined,
			      "children": undefined,
			      "chunks": undefined,
			      "filteredAssets": 0,
			      "filteredAuxiliaryAssets": 0,
			      "name": "entryA",
			    },
			    "entryB": Object {
			      "assets": Array [
			        Object {
			          "name": "entryB.js",
			          "size": 205,
			        },
			      ],
			      "assetsSize": 205,
			      "auxiliaryAssets": undefined,
			      "auxiliaryAssetsSize": 0,
			      "childAssets": undefined,
			      "children": undefined,
			      "chunks": undefined,
			      "filteredAssets": 0,
			      "filteredAuxiliaryAssets": 0,
			      "name": "entryB",
			    },
			  },
			}
		`);
		});

		it("should contain additional chunks", async () => {
			const stats = await compile({
				context: __dirname,
				entry: {
					entryA: "./fixtures/a",
					entryB: "./fixtures/chunk-b"
				}
			});
			expect(
				stats.toJson({
					all: false,
					errorsCount: true,
					chunkGroups: true
				})
			).toMatchInlineSnapshot(`
			Object {
			  "errorsCount": 0,
			  "namedChunkGroups": Object {
			    "chunkB": Object {
			      "assets": Array [
			        Object {
			          "name": "chunkB.js",
			          "size": 106,
			        },
			      ],
			      "assetsSize": 106,
			      "auxiliaryAssets": undefined,
			      "auxiliaryAssetsSize": 0,
			      "childAssets": undefined,
			      "children": undefined,
			      "chunks": undefined,
			      "filteredAssets": 0,
			      "filteredAuxiliaryAssets": 0,
			      "name": "chunkB",
			    },
			    "entryA": Object {
			      "assets": Array [
			        Object {
			          "name": "entryA.js",
			          "size": 205,
			        },
			      ],
			      "assetsSize": 205,
			      "auxiliaryAssets": undefined,
			      "auxiliaryAssetsSize": 0,
			      "childAssets": undefined,
			      "children": undefined,
			      "chunks": undefined,
			      "filteredAssets": 0,
			      "filteredAuxiliaryAssets": 0,
			      "name": "entryA",
			    },
			    "entryB": Object {
			      "assets": Array [
			        Object {
			          "name": "entryB.js",
			          "size": 3310,
			        },
			      ],
			      "assetsSize": 3310,
			      "auxiliaryAssets": undefined,
			      "auxiliaryAssetsSize": 0,
			      "childAssets": undefined,
			      "children": undefined,
			      "chunks": undefined,
			      "filteredAssets": 0,
			      "filteredAuxiliaryAssets": 0,
			      "name": "entryB",
			    },
			  },
			}
		`);
		});

		it("should contain assets", async () => {
			const stats = await compile({
				context: __dirname,
				entry: {
					entryA: "./fixtures/a",
					entryB: "./fixtures/chunk-b"
				}
			});
			expect(
				stats.toJson({
					all: false,
					errorsCount: true,
					assets: true
				})
			).toMatchInlineSnapshot(`
			Object {
			  "assets": Array [
			    Object {
			      "auxiliaryChunkIdHints": Array [],
			      "auxiliaryChunkNames": Array [],
			      "cached": false,
			      "chunkIdHints": Array [],
			      "chunkNames": Array [
			        "entryB",
			      ],
			      "comparedForEmit": false,
			      "emitted": true,
			      "filteredRelated": undefined,
			      "info": Object {
			        "javascriptModule": false,
			        "minimized": true,
			        "size": 3310,
			      },
			      "name": "entryB.js",
			      "size": 3310,
			      "type": "asset",
			    },
			    Object {
			      "auxiliaryChunkIdHints": Array [],
			      "auxiliaryChunkNames": Array [],
			      "cached": false,
			      "chunkIdHints": Array [],
			      "chunkNames": Array [
			        "entryA",
			      ],
			      "comparedForEmit": false,
			      "emitted": true,
			      "filteredRelated": undefined,
			      "info": Object {
			        "javascriptModule": false,
			        "minimized": true,
			        "size": 205,
			      },
			      "name": "entryA.js",
			      "size": 205,
			      "type": "asset",
			    },
			    Object {
			      "auxiliaryChunkIdHints": Array [],
			      "auxiliaryChunkNames": Array [],
			      "cached": false,
			      "chunkIdHints": Array [],
			      "chunkNames": Array [
			        "chunkB",
			      ],
			      "comparedForEmit": false,
			      "emitted": true,
			      "filteredRelated": undefined,
			      "info": Object {
			        "javascriptModule": false,
			        "minimized": true,
			        "size": 106,
			      },
			      "name": "chunkB.js",
			      "size": 106,
			      "type": "asset",
			    },
			  ],
			  "assetsByChunkName": Object {
			    "chunkB": Array [
			      "chunkB.js",
			    ],
			    "entryA": Array [
			      "entryA.js",
			    ],
			    "entryB": Array [
			      "entryB.js",
			    ],
			  },
			  "errorsCount": 0,
			  "filteredAssets": undefined,
			}
		`);
		});
	});
});