mirror of
https://github.com/denoland/deno.git
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505 lines
14 KiB
TypeScript
505 lines
14 KiB
TypeScript
// Copyright 2018 the Deno authors. All rights reserved. MIT license.
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import { test, assert, assertEqual } from "./test_util.ts";
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import * as compiler from "compiler";
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import * as ts from "typescript";
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// We use a silly amount of `any` in these tests...
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// tslint:disable:no-any
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const { DenoCompiler } = compiler;
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// Enums like this don't exist at runtime, so local copy
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enum ScriptKind {
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JS = 1,
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TS = 3,
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JSON = 6
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}
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interface ModuleInfo {
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moduleName: string | null;
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filename: string | null;
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sourceCode: string | null;
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outputCode: string | null;
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}
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const compilerInstance = DenoCompiler.instance();
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// References to orignal items we are going to mock
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const originals = {
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_globalEval: (compilerInstance as any)._globalEval,
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_log: (compilerInstance as any)._log,
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_os: (compilerInstance as any)._os,
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_ts: (compilerInstance as any)._ts,
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_service: (compilerInstance as any)._service,
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_window: (compilerInstance as any)._window
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};
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function mockModuleInfo(
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moduleName: string | null,
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filename: string | null,
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sourceCode: string | null,
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outputCode: string | null
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): ModuleInfo {
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return {
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moduleName,
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filename,
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sourceCode,
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outputCode
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};
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}
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// Some fixtures we will us in testing
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const fooBarTsSource = `import * as compiler from "compiler";
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console.log(compiler);
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export const foo = "bar";
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`;
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const fooBazTsSource = `import { foo } from "./bar.ts";
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console.log(foo);
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`;
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// TODO(#23) Remove source map strings from fooBarTsOutput.
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// tslint:disable:max-line-length
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const fooBarTsOutput = `define(["require", "exports", "compiler"], function (require, exports, compiler) {
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"use strict";
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Object.defineProperty(exports, "__esModule", { value: true });
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console.log(compiler);
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exports.foo = "bar";
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});
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//# sourceMappingURL=data:application/json;base64,eyJ2ZXJzaW9uIjozLCJmaWxlIjoiYmFyLmpzIiwic291cmNlUm9vdCI6IiIsInNvdXJjZXMiOlsiZmlsZTovLy9yb290L3Byb2plY3QvZm9vL2Jhci50cyJdLCJuYW1lcyI6W10sIm1hcHBpbmdzIjoiOzs7SUFDQSxPQUFPLENBQUMsR0FBRyxDQUFDLFFBQVEsQ0FBQyxDQUFDO0lBQ1QsUUFBQSxHQUFHLEdBQUcsS0FBSyxDQUFDIiwic291cmNlc0NvbnRlbnQiOlsiaW1wb3J0ICogYXMgY29tcGlsZXIgZnJvbSBcImNvbXBpbGVyXCI7XG5jb25zb2xlLmxvZyhjb21waWxlcik7XG5leHBvcnQgY29uc3QgZm9vID0gXCJiYXJcIjtcbiJdfQ==
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//# sourceURL=/root/project/foo/bar.ts`;
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// TODO(#23) Remove source map strings from fooBazTsOutput.
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const fooBazTsOutput = `define(["require", "exports", "./bar.ts"], function (require, exports, bar_ts_1) {
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"use strict";
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Object.defineProperty(exports, "__esModule", { value: true });
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console.log(bar_ts_1.foo);
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});
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//# sourceMappingURL=data:application/json;base64,eyJ2ZXJzaW9uIjozLCJmaWxlIjoiYmF6LmpzIiwic291cmNlUm9vdCI6IiIsInNvdXJjZXMiOlsiZmlsZTovLy9yb290L3Byb2plY3QvZm9vL2Jhei50cyJdLCJuYW1lcyI6W10sIm1hcHBpbmdzIjoiOzs7SUFDQSxPQUFPLENBQUMsR0FBRyxDQUFDLFlBQUcsQ0FBQyxDQUFDIiwic291cmNlc0NvbnRlbnQiOlsiaW1wb3J0IHsgZm9vIH0gZnJvbSBcIi4vYmFyLnRzXCI7XG5jb25zb2xlLmxvZyhmb28pO1xuIl19
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//# sourceURL=/root/project/foo/baz.ts`;
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// tslint:enable:max-line-length
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const moduleMap: {
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[containFile: string]: { [moduleSpecifier: string]: ModuleInfo };
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} = {
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"/root/project": {
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"foo/bar.ts": mockModuleInfo(
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"foo/bar",
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"/root/project/foo/bar.ts",
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fooBarTsSource,
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null
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),
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"foo/baz.ts": mockModuleInfo(
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"foo/baz",
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"/root/project/foo/baz.ts",
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fooBazTsSource,
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fooBazTsOutput
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)
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},
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"/root/project/foo/baz.ts": {
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"./bar.ts": mockModuleInfo(
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"foo/bar",
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"/root/project/foo/bar.ts",
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fooBarTsSource,
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fooBarTsOutput
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)
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}
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};
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const emittedFiles = {
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"/root/project/foo/qat.ts": "console.log('foo');"
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};
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let globalEvalStack: string[] = [];
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let getEmitOutputStack: string[] = [];
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let logStack: any[][] = [];
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let codeCacheStack: Array<{
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fileName: string;
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sourceCode: string;
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outputCode: string;
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}> = [];
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let codeFetchStack: Array<{
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moduleSpecifier: string;
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containingFile: string;
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}> = [];
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let mockDepsStack: string[][] = [];
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let mockFactoryStack: compiler.AmdFactory[] = [];
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function globalEvalMock(x: string): void {
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globalEvalStack.push(x);
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if (windowMock.define && mockDepsStack.length && mockFactoryStack.length) {
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windowMock.define(mockDepsStack.pop(), mockFactoryStack.pop());
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}
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}
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function logMock(...args: any[]): void {
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logStack.push(args);
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}
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const osMock: compiler.Os = {
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codeCache(fileName: string, sourceCode: string, outputCode: string): void {
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codeCacheStack.push({ fileName, sourceCode, outputCode });
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},
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codeFetch(moduleSpecifier: string, containingFile: string): ModuleInfo {
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codeFetchStack.push({ moduleSpecifier, containingFile });
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if (containingFile in moduleMap) {
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if (moduleSpecifier in moduleMap[containingFile]) {
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return moduleMap[containingFile][moduleSpecifier];
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}
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}
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return mockModuleInfo(null, null, null, null);
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},
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exit(code: number): never {
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throw new Error(`os.exit(${code})`);
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}
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};
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const tsMock: compiler.Ts = {
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createLanguageService(host: ts.LanguageServiceHost): ts.LanguageService {
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return {} as ts.LanguageService;
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},
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formatDiagnosticsWithColorAndContext(
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diagnostics: ReadonlyArray<ts.Diagnostic>,
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host: ts.FormatDiagnosticsHost
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): string {
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return "";
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}
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};
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const getEmitOutputPassThrough = true;
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const serviceMock = {
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getCompilerOptionsDiagnostics(): ts.Diagnostic[] {
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return originals._service.getCompilerOptionsDiagnostics.call(
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originals._service
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);
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},
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getEmitOutput(fileName: string): ts.EmitOutput {
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getEmitOutputStack.push(fileName);
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if (getEmitOutputPassThrough) {
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return originals._service.getEmitOutput.call(
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originals._service,
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fileName
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);
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}
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if (fileName in emittedFiles) {
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return {
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outputFiles: [{ text: emittedFiles[fileName] }] as any,
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emitSkipped: false
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};
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}
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return { outputFiles: [], emitSkipped: false };
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},
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getSemanticDiagnostics(fileName: string): ts.Diagnostic[] {
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return originals._service.getSemanticDiagnostics.call(
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originals._service,
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fileName
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);
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},
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getSyntacticDiagnostics(fileName: string): ts.Diagnostic[] {
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return originals._service.getSyntacticDiagnostics.call(
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originals._service,
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fileName
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);
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}
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};
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const windowMock: { define?: compiler.AmdDefine } = {};
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const mocks = {
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_globalEval: globalEvalMock,
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_log: logMock,
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_os: osMock,
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_ts: tsMock,
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_service: serviceMock,
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_window: windowMock
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};
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/**
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* Setup the mocks for a test
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*/
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function setup() {
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// monkey patch mocks on instance
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Object.assign(compilerInstance, mocks);
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}
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/**
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* Teardown the mocks for a test
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*/
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function teardown() {
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// reset compiler internal state
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(compilerInstance as any)._moduleMetaDataMap.clear();
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(compilerInstance as any)._fileNamesMap.clear();
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// reset mock states
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codeFetchStack = [];
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codeCacheStack = [];
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logStack = [];
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getEmitOutputStack = [];
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globalEvalStack = [];
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assertEqual(mockDepsStack.length, 0);
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assertEqual(mockFactoryStack.length, 0);
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mockDepsStack = [];
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mockFactoryStack = [];
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// restore original properties and methods
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Object.assign(compilerInstance, originals);
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}
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test(function compilerInstance() {
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assert(DenoCompiler != null);
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assert(DenoCompiler.instance() != null);
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});
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// Testing the internal APIs
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test(function compilerRun() {
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// equal to `deno foo/bar.ts`
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setup();
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let factoryRun = false;
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mockDepsStack.push(["require", "exports", "compiler"]);
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mockFactoryStack.push((_require, _exports, _compiler) => {
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factoryRun = true;
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assertEqual(typeof _require, "function");
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assertEqual(typeof _exports, "object");
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assert(_compiler === compiler);
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_exports.foo = "bar";
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});
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const moduleMetaData = compilerInstance.run("foo/bar.ts", "/root/project");
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assert(factoryRun);
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assert(moduleMetaData.hasRun);
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assertEqual(moduleMetaData.sourceCode, fooBarTsSource);
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assertEqual(moduleMetaData.outputCode, fooBarTsOutput);
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assertEqual(moduleMetaData.exports, { foo: "bar" });
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assertEqual(
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codeFetchStack.length,
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1,
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"Module should have only been fetched once."
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);
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assertEqual(
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codeCacheStack.length,
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1,
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"Compiled code should have only been cached once."
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);
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teardown();
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});
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test(function compilerRunMultiModule() {
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// equal to `deno foo/baz.ts`
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setup();
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const factoryStack: string[] = [];
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const bazDeps = ["require", "exports", "./bar.ts"];
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const bazFactory = (_require, _exports, _bar) => {
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factoryStack.push("baz");
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assertEqual(_bar.foo, "bar");
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};
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const barDeps = ["require", "exports", "compiler"];
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const barFactory = (_require, _exports, _compiler) => {
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factoryStack.push("bar");
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_exports.foo = "bar";
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};
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mockDepsStack.push(barDeps);
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mockFactoryStack.push(barFactory);
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mockDepsStack.push(bazDeps);
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mockFactoryStack.push(bazFactory);
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compilerInstance.run("foo/baz.ts", "/root/project");
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assertEqual(factoryStack, ["bar", "baz"]);
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assertEqual(
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codeFetchStack.length,
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2,
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"Modules should have only been fetched once."
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);
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assertEqual(codeCacheStack.length, 0, "No code should have been cached.");
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teardown();
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});
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test(function compilerResolveModule() {
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setup();
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const moduleMetaData = compilerInstance.resolveModule(
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"foo/baz.ts",
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"/root/project"
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);
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assertEqual(moduleMetaData.sourceCode, fooBazTsSource);
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assertEqual(moduleMetaData.outputCode, fooBazTsOutput);
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assert(!moduleMetaData.hasRun);
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assert(!moduleMetaData.deps);
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assertEqual(moduleMetaData.exports, {});
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assertEqual(moduleMetaData.scriptVersion, "1");
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assertEqual(codeFetchStack.length, 1, "Only initial module is resolved.");
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teardown();
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});
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test(function compilerGetModuleDependencies() {
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setup();
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const bazDeps = ["require", "exports", "./bar.ts"];
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const bazFactory = () => {
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throw new Error("Unexpected factory call");
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};
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const barDeps = ["require", "exports", "compiler"];
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const barFactory = () => {
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throw new Error("Unexpected factory call");
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};
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mockDepsStack.push(barDeps);
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mockFactoryStack.push(barFactory);
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mockDepsStack.push(bazDeps);
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mockFactoryStack.push(bazFactory);
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const deps = compilerInstance.getModuleDependencies(
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"foo/baz.ts",
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"/root/project"
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);
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assertEqual(deps, ["/root/project/foo/bar.ts", "/root/project/foo/baz.ts"]);
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teardown();
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});
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// TypeScript LanguageServiceHost APIs
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test(function compilerGetCompilationSettings() {
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const result = compilerInstance.getCompilationSettings();
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for (const key of [
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"allowJs",
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"module",
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"outDir",
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"inlineSourceMap",
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"inlineSources",
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"stripComments",
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"target"
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]) {
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assert(key in result, `Expected "${key}" in compiler options.`);
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}
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});
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test(function compilerGetNewLine() {
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const result = compilerInstance.getNewLine();
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assertEqual(result, "\n", "Expected newline value of '\\n'.");
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});
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test(function compilerGetScriptFileNames() {
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setup();
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compilerInstance.run("foo/bar.ts", "/root/project");
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const result = compilerInstance.getScriptFileNames();
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assertEqual(result.length, 1, "Expected only a single filename.");
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assertEqual(result[0], "/root/project/foo/bar.ts");
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teardown();
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});
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test(function compilerGetScriptKind() {
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assertEqual(compilerInstance.getScriptKind("foo.ts"), ScriptKind.TS);
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assertEqual(compilerInstance.getScriptKind("foo.d.ts"), ScriptKind.TS);
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assertEqual(compilerInstance.getScriptKind("foo.js"), ScriptKind.JS);
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assertEqual(compilerInstance.getScriptKind("foo.json"), ScriptKind.JSON);
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assertEqual(compilerInstance.getScriptKind("foo.txt"), ScriptKind.JS);
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});
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test(function compilerGetScriptVersion() {
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setup();
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const moduleMetaData = compilerInstance.resolveModule(
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"foo/bar.ts",
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"/root/project"
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);
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compilerInstance.compile(moduleMetaData);
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assertEqual(
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compilerInstance.getScriptVersion(moduleMetaData.fileName),
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"1",
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"Expected known module to have script version of 1"
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);
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teardown();
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});
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test(function compilerGetScriptVersionUnknown() {
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assertEqual(
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compilerInstance.getScriptVersion("/root/project/unknown_module.ts"),
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"",
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"Expected unknown module to have an empty script version"
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);
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});
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test(function compilerGetScriptSnapshot() {
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setup();
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const moduleMetaData = compilerInstance.resolveModule(
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"foo/bar.ts",
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"/root/project"
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);
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const result = compilerInstance.getScriptSnapshot(moduleMetaData.fileName);
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assert(result != null, "Expected snapshot to be defined.");
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assertEqual(result.getLength(), fooBarTsSource.length);
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assertEqual(
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result.getText(0, 6),
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"import",
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"Expected .getText() to equal 'import'"
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);
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assertEqual(result.getChangeRange(result), undefined);
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// This is and optional part of the `IScriptSnapshot` API which we don't
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// define, os checking for the lack of this property.
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assert(!("dispose" in result));
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assert(
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result === moduleMetaData,
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"result should strictly equal moduleMetaData"
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);
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teardown();
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});
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test(function compilerGetCurrentDirectory() {
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assertEqual(compilerInstance.getCurrentDirectory(), "");
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});
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test(function compilerGetDefaultLibFileName() {
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setup();
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assertEqual(
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compilerInstance.getDefaultLibFileName(),
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"$asset$/lib.globals.d.ts"
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);
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teardown();
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});
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test(function compilerUseCaseSensitiveFileNames() {
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assertEqual(compilerInstance.useCaseSensitiveFileNames(), true);
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});
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test(function compilerReadFile() {
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let doesThrow = false;
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try {
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compilerInstance.readFile("foobar.ts");
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} catch (e) {
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doesThrow = true;
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assert(e.message.includes("Not implemented") === true);
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}
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assert(doesThrow);
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});
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test(function compilerFileExists() {
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setup();
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const moduleMetaData = compilerInstance.resolveModule(
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"foo/bar.ts",
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"/root/project"
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);
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assert(compilerInstance.fileExists(moduleMetaData.fileName));
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assert(compilerInstance.fileExists("$asset$/compiler.d.ts"));
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assertEqual(
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compilerInstance.fileExists("/root/project/unknown-module.ts"),
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false
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);
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teardown();
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});
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test(function compilerResolveModuleNames() {
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setup();
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const results = compilerInstance.resolveModuleNames(
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["foo/bar.ts", "foo/baz.ts", "$asset$/lib.globals.d.ts", "deno"],
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"/root/project"
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);
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assertEqual(results.length, 4);
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const fixtures: Array<[string, boolean]> = [
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["/root/project/foo/bar.ts", false],
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["/root/project/foo/baz.ts", false],
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["$asset$/lib.globals.d.ts", true],
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["$asset$/deno.d.ts", true]
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];
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for (let i = 0; i < results.length; i++) {
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const result = results[i];
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const [resolvedFileName, isExternalLibraryImport] = fixtures[i];
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assertEqual(result.resolvedFileName, resolvedFileName);
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assertEqual(result.isExternalLibraryImport, isExternalLibraryImport);
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}
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teardown();
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});
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