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Add test that fails because we dont watch module resolutions failed paths

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This commit is contained in:
Sheetal Nandi 2017-08-04 23:55:13 -07:00
parent 2762232e03
commit 65a6ee07e9
1 changed files with 47 additions and 0 deletions
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47
src/harness/unittests/tscWatchMode.ts
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@ -1609,5 +1609,52 @@ namespace ts.tscWatch {
assert.isTrue(fileExistsCalledForBar, "'fileExists' should be called.");
checkOutputDoesNotContain(host, [barNotFound]);
});
it("should compile correctly when resolved module goes missing and then comes back (module is not part of the root)", () => {
const root = {
path: `/a/foo.ts`,
content: `import {x} from "bar"`
};
const imported = {
path: `/a/bar.d.ts`,
content: `export const y = 1;`
};
const files = [root, libFile];
const filesWithImported = files.concat(imported);
const host = createWatchedSystem(filesWithImported);
const originalFileExists = host.fileExists;
let fileExistsCalledForBar = false;
host.fileExists = fileName => {
if (fileName === "lib.d.ts") {
return false;
}
if (!fileExistsCalledForBar) {
fileExistsCalledForBar = fileName.indexOf("/bar.") !== -1;
}
return originalFileExists.call(host, fileName);
};
createWatchModeWithoutConfigFile([root.path], host, { module: ModuleKind.AMD });
const barNotFound = `a/foo.ts(1,17): error TS2307: Cannot find module 'bar'.\n`;
assert.isTrue(fileExistsCalledForBar, "'fileExists' should be called");
checkOutputDoesNotContain(host, [barNotFound]);
host.clearOutput();
fileExistsCalledForBar = false;
host.reloadFS(files);
host.runQueuedTimeoutCallbacks();
assert.isTrue(fileExistsCalledForBar, "'fileExists' should be called.");
checkOutputContains(host, [barNotFound]);
host.clearOutput();
fileExistsCalledForBar = false;
host.reloadFS(filesWithImported);
host.checkTimeoutQueueLengthAndRun(1);
assert.isTrue(fileExistsCalledForBar, "'fileExists' should be called.");
checkOutputDoesNotContain(host, [barNotFound]);
});
});
}