/
watchApi.ts
246 lines (221 loc) · 12.8 KB
/
watchApi.ts
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namespace ts.tscWatch {
describe("unittests:: tsc-watch:: watchAPI:: tsc-watch with custom module resolution", () => {
const configFileJson: any = {
compilerOptions: { module: "commonjs", resolveJsonModule: true },
files: ["index.ts"]
};
const mainFile: File = {
path: `${projectRoot}/index.ts`,
content: "import settings from './settings.json';"
};
const config: File = {
path: `${projectRoot}/tsconfig.json`,
content: JSON.stringify(configFileJson)
};
const settingsJson: File = {
path: `${projectRoot}/settings.json`,
content: JSON.stringify({ content: "Print this" })
};
it("verify that module resolution with json extension works when returned without extension", () => {
const files = [libFile, mainFile, config, settingsJson];
const host = createWatchedSystem(files, { currentDirectory: projectRoot });
const compilerHost = createWatchCompilerHostOfConfigFile({
configFileName: config.path,
system: host
});
const parsedCommandResult = parseJsonConfigFileContent(configFileJson, host, config.path);
compilerHost.resolveModuleNames = (moduleNames, containingFile) => moduleNames.map(m => {
const result = resolveModuleName(m, containingFile, parsedCommandResult.options, compilerHost);
const resolvedModule = result.resolvedModule!;
return {
resolvedFileName: resolvedModule.resolvedFileName,
isExternalLibraryImport: resolvedModule.isExternalLibraryImport,
originalFileName: resolvedModule.originalPath,
};
});
const watch = createWatchProgram(compilerHost);
const program = watch.getCurrentProgram().getProgram();
checkProgramActualFiles(program, [mainFile.path, libFile.path, settingsJson.path]);
});
});
describe("unittests:: tsc-watch:: watchAPI:: tsc-watch expose error count to watch status reporter", () => {
const configFileJson: any = {
compilerOptions: { module: "commonjs" },
files: ["index.ts"]
};
const config: File = {
path: `${projectRoot}/tsconfig.json`,
content: JSON.stringify(configFileJson)
};
const mainFile: File = {
path: `${projectRoot}/index.ts`,
content: "let compiler = new Compiler(); for (let i = 0; j < 5; i++) {}"
};
it("verify that the error count is correctly passed down to the watch status reporter", () => {
const files = [libFile, mainFile, config];
const host = createWatchedSystem(files, { currentDirectory: projectRoot });
let watchedErrorCount;
const reportWatchStatus: WatchStatusReporter = (_, __, ___, errorCount) => {
watchedErrorCount = errorCount;
};
const compilerHost = createWatchCompilerHostOfConfigFile({
configFileName: config.path,
system: host,
reportWatchStatus
});
createWatchProgram(compilerHost);
assert.equal(watchedErrorCount, 2, "The error count was expected to be 2 for the file change");
});
});
describe("unittests:: tsc-watch:: watchAPI:: when watchHost does not implement setTimeout or clearTimeout", () => {
it("verifies that getProgram gets updated program if new file is added to the program", () => {
const config: File = {
path: `${projectRoot}/tsconfig.json`,
content: "{}"
};
const mainFile: File = {
path: `${projectRoot}/main.ts`,
content: "const x = 10;"
};
const sys = createWatchedSystem([config, mainFile, libFile]);
const watchCompilerHost = createWatchCompilerHost(config.path, {}, sys);
watchCompilerHost.setTimeout = undefined;
watchCompilerHost.clearTimeout = undefined;
const watch = createWatchProgram(watchCompilerHost);
checkProgramActualFiles(watch.getProgram().getProgram(), [mainFile.path, libFile.path]);
// Write new file
const barPath = `${projectRoot}/bar.ts`;
sys.writeFile(barPath, "const y =10;");
checkProgramActualFiles(watch.getProgram().getProgram(), [mainFile.path, barPath, libFile.path]);
});
});
describe("unittests:: tsc-watch:: watchAPI:: when watchHost can add extraFileExtensions to process", () => {
it("verifies that extraFileExtensions are supported to get the program with other extensions", () => {
const config: File = {
path: `${projectRoot}/tsconfig.json`,
content: "{}"
};
const mainFile: File = {
path: `${projectRoot}/main.ts`,
content: "const x = 10;"
};
const otherFile: File = {
path: `${projectRoot}/other.vue`,
content: ""
};
const sys = createWatchedSystem([config, mainFile, otherFile, libFile]);
const watchCompilerHost = createWatchCompilerHost(
config.path,
{ allowNonTsExtensions: true },
sys,
/*createProgram*/ undefined,
/*reportDiagnostics*/ undefined,
/*reportWatchStatus*/ undefined,
/*watchOptionsToExtend*/ undefined,
[{ extension: ".vue", isMixedContent: true, scriptKind: ScriptKind.Deferred }]
);
const watch = createWatchProgram(watchCompilerHost);
checkProgramActualFiles(watch.getProgram().getProgram(), [mainFile.path, otherFile.path, libFile.path]);
const other2 = `${projectRoot}/other2.vue`;
sys.writeFile(other2, otherFile.content);
checkSingleTimeoutQueueLengthAndRun(sys);
checkProgramActualFiles(watch.getProgram().getProgram(), [mainFile.path, otherFile.path, libFile.path, other2]);
});
});
describe("unittests:: tsc-watch:: watchAPI:: when watchHost uses createSemanticDiagnosticsBuilderProgram", () => {
function getWatch<T extends BuilderProgram>(config: File, optionsToExtend: CompilerOptions | undefined, sys: System, createProgram: CreateProgram<T>) {
const watchCompilerHost = createWatchCompilerHost(config.path, optionsToExtend, sys, createProgram);
return createWatchProgram(watchCompilerHost);
}
function setup<T extends BuilderProgram>(createProgram: CreateProgram<T>, configText: string) {
const config: File = {
path: `${projectRoot}/tsconfig.json`,
content: configText
};
const mainFile: File = {
path: `${projectRoot}/main.ts`,
content: "export const x = 10;"
};
const otherFile: File = {
path: `${projectRoot}/other.ts`,
content: "export const y = 10;"
};
const sys = createWatchedSystem([config, mainFile, otherFile, libFile]);
const watch = getWatch(config, { noEmit: true }, sys, createProgram);
return { sys, watch, mainFile, otherFile, config };
}
function verifyOutputs(sys: System, emitSys: System) {
for (const output of [`${projectRoot}/main.js`, `${projectRoot}/main.d.ts`, `${projectRoot}/other.js`, `${projectRoot}/other.d.ts`, `${projectRoot}/tsconfig.tsbuildinfo`]) {
assert.strictEqual(sys.readFile(output), emitSys.readFile(output), `Output file text for ${output}`);
}
}
function verifyBuilder<T extends BuilderProgram, U extends BuilderProgram>(config: File, sys: System, emitSys: System, createProgram: CreateProgram<T>, createEmitProgram: CreateProgram<U>, optionsToExtend?: CompilerOptions) {
const watch = getWatch(config, /*optionsToExtend*/ optionsToExtend, sys, createProgram);
const emitWatch = getWatch(config, /*optionsToExtend*/ optionsToExtend, emitSys, createEmitProgram);
verifyOutputs(sys, emitSys);
watch.close();
emitWatch.close();
}
it("verifies that noEmit is handled on createSemanticDiagnosticsBuilderProgram and typechecking happens only on affected files", () => {
const { sys, watch, mainFile, otherFile } = setup(createSemanticDiagnosticsBuilderProgram, "{}");
checkProgramActualFiles(watch.getProgram().getProgram(), [mainFile.path, otherFile.path, libFile.path]);
sys.appendFile(mainFile.path, "\n// SomeComment");
sys.runQueuedTimeoutCallbacks();
const program = watch.getProgram().getProgram();
assert.deepEqual(program.getCachedSemanticDiagnostics(program.getSourceFile(mainFile.path)), []);
// Should not retrieve diagnostics for other file thats not changed
assert.deepEqual(program.getCachedSemanticDiagnostics(program.getSourceFile(otherFile.path)), /*expected*/ undefined);
});
it("noEmit with composite writes the tsbuildinfo with pending affected files correctly", () => {
const configText = JSON.stringify({ compilerOptions: { composite: true } });
const { sys, watch, config, mainFile } = setup(createSemanticDiagnosticsBuilderProgram, configText);
const { sys: emitSys, watch: emitWatch } = setup(createEmitAndSemanticDiagnosticsBuilderProgram, configText);
verifyOutputs(sys, emitSys);
watch.close();
emitWatch.close();
// Emit on both sys should result in same output
verifyBuilder(config, sys, emitSys, createEmitAndSemanticDiagnosticsBuilderProgram, createEmitAndSemanticDiagnosticsBuilderProgram);
// Change file
sys.appendFile(mainFile.path, "\n// SomeComment");
emitSys.appendFile(mainFile.path, "\n// SomeComment");
// Verify noEmit results in same output
verifyBuilder(config, sys, emitSys, createSemanticDiagnosticsBuilderProgram, createEmitAndSemanticDiagnosticsBuilderProgram, { noEmit: true });
// Emit on both sys should result in same output
verifyBuilder(config, sys, emitSys, createEmitAndSemanticDiagnosticsBuilderProgram, createEmitAndSemanticDiagnosticsBuilderProgram);
// Change file
sys.appendFile(mainFile.path, "\n// SomeComment");
emitSys.appendFile(mainFile.path, "\n// SomeComment");
// Emit on both the builders should result in same files
verifyBuilder(config, sys, emitSys, createSemanticDiagnosticsBuilderProgram, createEmitAndSemanticDiagnosticsBuilderProgram);
});
it("noEmitOnError with composite writes the tsbuildinfo with pending affected files correctly", () => {
const config: File = {
path: `${projectRoot}/tsconfig.json`,
content: JSON.stringify({ compilerOptions: { composite: true } })
};
const mainFile: File = {
path: `${projectRoot}/main.ts`,
content: "export const x: string = 10;"
};
const otherFile: File = {
path: `${projectRoot}/other.ts`,
content: "export const y = 10;"
};
const sys = createWatchedSystem([config, mainFile, otherFile, libFile]);
const emitSys = createWatchedSystem([config, mainFile, otherFile, libFile]);
// Verify noEmit results in same output
verifyBuilder(config, sys, emitSys, createSemanticDiagnosticsBuilderProgram, createEmitAndSemanticDiagnosticsBuilderProgram, { noEmitOnError: true });
// Change file
sys.appendFile(mainFile.path, "\n// SomeComment");
emitSys.appendFile(mainFile.path, "\n// SomeComment");
// Verify noEmit results in same output
verifyBuilder(config, sys, emitSys, createSemanticDiagnosticsBuilderProgram, createEmitAndSemanticDiagnosticsBuilderProgram, { noEmitOnError: true });
// Fix error
const fixed = "export const x = 10;";
sys.appendFile(mainFile.path, fixed);
emitSys.appendFile(mainFile.path, fixed);
// Emit on both the builders should result in same files
verifyBuilder(config, sys, emitSys, createSemanticDiagnosticsBuilderProgram, createEmitAndSemanticDiagnosticsBuilderProgram, { noEmitOnError: true });
});
});
}