wip

jest.config.ts

+/*
+* For a detailed explanation regarding each configuration property and type check, visit:
+* https://jestjs.io/docs/en/configuration.html
+*/
+
+export default {
+	// All imported modules in your tests should be mocked automatically
+	// automock: false,
+
+	// Stop running tests after `n` failures
+	// bail: 0,
+
+	// The directory where Jest should store its cached dependency information
+	// cacheDirectory: "C:\\Users\\ai\\AppData\\Local\\Temp\\jest",
+
+	// Automatically clear mock calls and instances between every test
+	// clearMocks: false,
+
+	// Indicates whether the coverage information should be collected while executing the test
+	// collectCoverage: false,
+
+	// An array of glob patterns indicating a set of files for which coverage information should be collected
+	// collectCoverageFrom: undefined,
+
+	// The directory where Jest should output its coverage files
+	coverageDirectory: "coverage",
+
+	// An array of regexp pattern strings used to skip coverage collection
+	// coveragePathIgnorePatterns: [
+	//   "\\\\node_modules\\\\"
+	// ],
+
+	// Indicates which provider should be used to instrument code for coverage
+	coverageProvider: "v8",
+
+	// A list of reporter names that Jest uses when writing coverage reports
+	// coverageReporters: [
+	//   "json",
+	//   "text",
+	//   "lcov",
+	//   "clover"
+	// ],
+
+	// An object that configures minimum threshold enforcement for coverage results
+	// coverageThreshold: undefined,
+
+	// A path to a custom dependency extractor
+	// dependencyExtractor: undefined,
+
+	// Make calling deprecated APIs throw helpful error messages
+	// errorOnDeprecated: false,
+
+	// Force coverage collection from ignored files using an array of glob patterns
+	// forceCoverageMatch: [],
+
+	// A path to a module which exports an async function that is triggered once before all test suites
+	// globalSetup: undefined,
+
+	// A path to a module which exports an async function that is triggered once after all test suites
+	// globalTeardown: undefined,
+
+	// A set of global variables that need to be available in all test environments
+	// globals: {},
+
+	// The maximum amount of workers used to run your tests. Can be specified as % or a number. E.g. maxWorkers: 10% will use 10% of your CPU amount + 1 as the maximum worker number. maxWorkers: 2 will use a maximum of 2 workers.
+	// maxWorkers: "50%",
+
+	// An array of directory names to be searched recursively up from the requiring module's location
+	// moduleDirectories: [
+	//   "node_modules"
+	// ],
+
+	// An array of file extensions your modules use
+	// moduleFileExtensions: [
+	//   "js",
+	//   "json",
+	//   "jsx",
+	//   "ts",
+	//   "tsx",
+	//   "node"
+	// ],
+
+	// A map from regular expressions to module names or to arrays of module names that allow to stub out resources with a single module
+	// moduleNameMapper: {},
+
+	// An array of regexp pattern strings, matched against all module paths before considered 'visible' to the module loader
+	// modulePathIgnorePatterns: [],
+
+	// Activates notifications for test results
+	// notify: false,
+
+	// An enum that specifies notification mode. Requires { notify: true }
+	// notifyMode: "failure-change",
+
+	// A preset that is used as a base for Jest's configuration
+	// preset: undefined,
+
+	// Run tests from one or more projects
+	// projects: undefined,
+
+	// Use this configuration option to add custom reporters to Jest
+	// reporters: undefined,
+
+	// Automatically reset mock state between every test
+	// resetMocks: false,
+
+	// Reset the module registry before running each individual test
+	// resetModules: false,
+
+	// A path to a custom resolver
+	// resolver: undefined,
+
+	// Automatically restore mock state between every test
+	// restoreMocks: false,
+
+	// The root directory that Jest should scan for tests and modules within
+	// rootDir: undefined,
+
+	// A list of paths to directories that Jest should use to search for files in
+	roots: [
+		"<rootDir>"
+	],
+
+	// Allows you to use a custom runner instead of Jest's default test runner
+	// runner: "jest-runner",
+
+	// The paths to modules that run some code to configure or set up the testing environment before each test
+	// setupFiles: [],
+
+	// A list of paths to modules that run some code to configure or set up the testing framework before each test
+	// setupFilesAfterEnv: [],
+
+	// The number of seconds after which a test is considered as slow and reported as such in the results.
+	// slowTestThreshold: 5,
+
+	// A list of paths to snapshot serializer modules Jest should use for snapshot testing
+	// snapshotSerializers: [],
+
+	// The test environment that will be used for testing
+	testEnvironment: "node",
+
+	// Options that will be passed to the testEnvironment
+	// testEnvironmentOptions: {},
+
+	// Adds a location field to test results
+	// testLocationInResults: false,
+
+	// The glob patterns Jest uses to detect test files
+	testMatch: [
+		"**/__tests__/**/*.[jt]s?(x)",
+		"**/?(*.)+(spec|test).[tj]s?(x)",
+		"<rootDir>/test/**/*"
+	],
+
+	// An array of regexp pattern strings that are matched against all test paths, matched tests are skipped
+	// testPathIgnorePatterns: [
+	//   "\\\\node_modules\\\\"
+	// ],
+
+	// The regexp pattern or array of patterns that Jest uses to detect test files
+	// testRegex: [],
+
+	// This option allows the use of a custom results processor
+	// testResultsProcessor: undefined,
+
+	// This option allows use of a custom test runner
+	// testRunner: "jasmine2",
+
+	// This option sets the URL for the jsdom environment. It is reflected in properties such as location.href
+	// testURL: "http://localhost",
+
+	// Setting this value to "fake" allows the use of fake timers for functions such as "setTimeout"
+	// timers: "real",
+
+	// A map from regular expressions to paths to transformers
+	transform: {
+		"^.+\\.(ts|tsx)$": "ts-jest"
+	},
+
+	// An array of regexp pattern strings that are matched against all source file paths, matched files will skip transformation
+	// transformIgnorePatterns: [
+	//   "\\\\node_modules\\\\",
+	//   "\\.pnp\\.[^\\\\]+$"
+	// ],
+
+	// An array of regexp pattern strings that are matched against all modules before the module loader will automatically return a mock for them
+	// unmockedModulePathPatterns: undefined,
+
+	// Indicates whether each individual test should be reported during the run
+	// verbose: undefined,
+
+	// An array of regexp patterns that are matched against all source file paths before re-running tests in watch mode
+	// watchPathIgnorePatterns: [],
+
+	// Whether to use watchman for file crawling
+	// watchman: true,
+};

package.json

@@ -8,16 +8,21 @@
     "build": "npm run tsc",
     "tsc": "tsc",
     "tsd": "tsd",
-    "test": "mocha -r ts-node/register 'test/**/*.ts' && npm run tsd"
+    "jest": "jest",
+    "test": "npm run jest && npm run tsd"
   },
   "repository": {
     "type": "git",
     "url": "git+https://github.com/misskey-dev/misskey.js.git"
   },
   "devDependencies": {
-    "@types/mocha": "8.2.x",
+    "@types/jest": "^26.0.23",
     "@types/node": "14.14.x",
-    "mocha": "8.3.x",
+    "fetch-mock-jest": "^1.5.1",
+    "jest": "^26.6.3",
+    "jest-websocket-mock": "^2.2.0",
+    "mock-socket": "^9.0.3",
+    "ts-jest": "^26.5.6",
     "ts-node": "9.1.x",
     "tsd": "^0.14.0",
     "typescript": "4.2.x"

test/api.ts

+import fetchMock from 'fetch-mock-jest';
+import { request } from '../src/api';
+
+describe('API', () => {
+	test('success', async () => {
+		fetchMock
+			.post('https://misskey.test/api/i', (url, options) => {
+				if (typeof options.body.i === 'string') {
+					return {
+						body: {
+							id: 'foo'
+						}
+					};
+				}
+				return 400;
+			});
+
+		const res = await request('https://misskey.test', 'i', {}, 'TOKEN');
+
+		expect(res).toEqual({
+			id: 'foo'
+		});
+
+		expect(fetchMock).toHaveLastFetched({
+			url: 'https://misskey.test/api/i',
+			body: { i: 'TOKEN' }
+		}, 'post');
+	});
+});