webpack/test/Stats.unittest.js

/*globals describe it */
"use strict";

const Stats = require("../lib/Stats");
const packageJson = require("../package.json");

describe("Stats", () => {
	describe("formatFilePath", () => {
		it("emit the file path and request", () => {
			const mockStats = new Stats({
				children: [],
				errors: ["firstError"],
				hash: "1234",
				compiler: {
					context: ""
				}
			});
			const inputPath =
				"./node_modules/ts-loader!./node_modules/vue-loader/lib/selector.js?type=script&index=0!./src/app.vue";
			const expectPath = `./src/app.vue (${inputPath})`;

			expect(mockStats.formatFilePath(inputPath)).toBe(expectPath);
		});
	});

	describe("Error Handling", () => {
		describe("does have", () => {
			it("hasErrors", () => {
				const mockStats = new Stats({
					children: [],
					errors: ["firstError"],
					hash: "1234",
					compiler: {
						context: ""
					}
				});
				expect(mockStats.hasErrors()).toBe(true);
			});
			it("hasWarnings", () => {
				const mockStats = new Stats({
					children: [],
					warnings: ["firstError"],
					hash: "1234",
					compiler: {
						context: ""
					}
				});
				expect(mockStats.hasWarnings()).toBe(true);
			});
		});
		describe("does not have", () => {
			it("hasErrors", () => {
				const mockStats = new Stats({
					children: [],
					errors: [],
					hash: "1234",
					compiler: {
						context: ""
					}
				});
				expect(mockStats.hasErrors()).toBe(false);
			});
			it("hasWarnings", () => {
				const mockStats = new Stats({
					children: [],
					warnings: [],
					hash: "1234",
					compiler: {
						context: ""
					}
				});
				expect(mockStats.hasWarnings()).toBe(false);
			});
		});
		describe("children have", () => {
			it("hasErrors", () => {
				const mockStats = new Stats({
					children: [
						{
							getStats: () =>
								new Stats({
									errors: ["firstError"],
									hash: "5678"
								})
						}
					],
					errors: [],
					hash: "1234"
				});
				expect(mockStats.hasErrors()).toBe(true);
			});
			it("hasWarnings", () => {
				const mockStats = new Stats({
					children: [
						{
							getStats: () =>
								new Stats({
									warnings: ["firstError"],
									hash: "5678"
								})
						}
					],
					warnings: [],
					hash: "1234"
				});
				expect(mockStats.hasWarnings()).toBe(true);
			});
		});
		it("formatError handles string errors", () => {
			const mockStats = new Stats({
				errors: ["firstError"],
				warnings: [],
				assets: [],
				entrypoints: new Map(),
				namedChunkGroups: new Map(),
				chunks: [],
				modules: [],
				children: [],
				hash: "1234",
				mainTemplate: {
					outputOptions: {
						path: ""
					},
					getPublicPath: () => "path"
				},
				compiler: {
					context: ""
				}
			});
			const obj = mockStats.toJson();
			expect(obj.errors[0]).toEqual("firstError");
		});
	});
	describe("toJson", () => {
		it("returns plain object representation", () => {
			const mockStats = new Stats({
				errors: [],
				warnings: [],
				assets: [],
				entrypoints: new Map(),
				chunks: [],
				namedChunkGroups: new Map(),
				modules: [],
				children: [],
				hash: "1234",
				mainTemplate: {
					outputOptions: {
						path: "/"
					},
					getPublicPath: () => "path"
				},
				compiler: {
					context: ""
				}
			});
			const result = mockStats.toJson();
			expect(result).toEqual({
				assets: [],
				assetsByChunkName: {},
				children: [],
				chunks: [],
				entrypoints: {},
				namedChunkGroups: {},
				filteredAssets: 0,
				filteredModules: 0,
				errors: [],
				hash: "1234",
				modules: [],
				outputPath: "/",
				publicPath: "path",
				version: packageJson.version,
				warnings: []
			});
		});
	});
	describe("Presets", () => {
		describe("presetToOptions", () => {
			it("returns correct object with 'Normal'", () => {
				expect(Stats.presetToOptions("Normal")).toEqual({});
			});
			it("truthy values behave as 'normal'", () => {
				const normalOpts = Stats.presetToOptions("normal");
				expect(Stats.presetToOptions("pizza")).toEqual(normalOpts);
				expect(Stats.presetToOptions(true)).toEqual(normalOpts);
				expect(Stats.presetToOptions(1)).toEqual(normalOpts);

				expect(Stats.presetToOptions("verbose")).not.toEqual(normalOpts);
				expect(Stats.presetToOptions(false)).not.toEqual(normalOpts);
			});
			it("returns correct object with 'none'", () => {
				expect(Stats.presetToOptions("none")).toEqual({
					all: false
				});
			});
			it("falsy values behave as 'none'", () => {
				const noneOpts = Stats.presetToOptions("none");
				expect(Stats.presetToOptions("")).toEqual(noneOpts);
				expect(Stats.presetToOptions(null)).toEqual(noneOpts);
				expect(Stats.presetToOptions()).toEqual(noneOpts);
				expect(Stats.presetToOptions(0)).toEqual(noneOpts);
				expect(Stats.presetToOptions(false)).toEqual(noneOpts);
			});
		});
	});
}, 10000);