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Handle WatchCompilerHost without timeout methods to retrieve correct Program (#37308)

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This commit is contained in:
Sheetal Nandi
2020-03-09 16:30:52 -07:00
committed by GitHub
parent 5d6b385e65
commit e68524a8d2
2 changed files with 31 additions and 4 deletions
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23
src/testRunner/unittests/tscWatch/watchApi.ts
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@@ -63,4 +63,27 @@ namespace ts.tscWatch {
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]);
});
});
}