deno.land / std@0.166.0 / node / _fs / _fs_writeFile_test.ts
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const moduleDir = path.dirname(path.fromFileUrl(import.meta.url));const testDataDir = path.resolve(moduleDir, "testdata");const decoder = new TextDecoder("utf-8");
Deno.test("Callback must be a function error", function fn() { assertThrows( () => { writeFile("some/path", "some data", "utf8"); }, TypeError, "Callback must be a function.", );});
Deno.test("Invalid encoding results in error()", function testEncodingErrors() { assertThrows( () => { // @ts-expect-error Type '"made-up-encoding"' is not assignable to type writeFile("some/path", "some data", "made-up-encoding", () => {}); }, Error, `The value "made-up-encoding" is invalid for option "encoding"`, );
assertThrows( () => { // @ts-expect-error Type '"made-up-encoding"' is not assignable to type writeFileSync("some/path", "some data", "made-up-encoding"); }, Error, `The value "made-up-encoding" is invalid for option "encoding"`, );
assertThrows( () => { writeFile( "some/path", "some data", { // @ts-expect-error Type '"made-up-encoding"' is not assignable to type encoding: "made-up-encoding", }, () => {}, ); }, Error, `The value "made-up-encoding" is invalid for option "encoding"`, );
assertThrows( () => { writeFileSync("some/path", "some data", { // @ts-expect-error Type '"made-up-encoding"' is not assignable to type encoding: "made-up-encoding", }); }, Error, `The value "made-up-encoding" is invalid for option "encoding"`, );});
Deno.test( "Unsupported encoding results in error()", function testUnsupportedEncoding() { assertThrows( () => { writeFile("some/path", "some data", "utf16le", () => {}); }, Error, `Not implemented: "utf16le" encoding`, );
assertThrows( () => { writeFileSync("some/path", "some data", "utf16le"); }, Error, `Not implemented: "utf16le" encoding`, ); },);
Deno.test( "Data is written to correct rid", async function testCorrectWriteUsingRid() { const tempFile: string = await Deno.makeTempFile(); const file: Deno.FsFile = await Deno.open(tempFile, { create: true, write: true, read: true, });
await new Promise<void>((resolve, reject) => { writeFile(file.rid, "hello world", (err) => { if (err) return reject(err); resolve(); }); }); Deno.close(file.rid);
const data = await Deno.readFile(tempFile); await Deno.remove(tempFile); assertEquals(decoder.decode(data), "hello world"); },);
Deno.test( "Data is written to correct file", async function testCorrectWriteUsingPath() { const res = await new Promise((resolve) => { writeFile("_fs_writeFile_test_file.txt", "hello world", resolve); });
const data = await Deno.readFile("_fs_writeFile_test_file.txt"); await Deno.remove("_fs_writeFile_test_file.txt"); assertEquals(res, null); assertEquals(decoder.decode(data), "hello world"); },);
Deno.test( "Data is written to correct file encodings", async function testCorrectWriteUsingDifferentEncodings() { const encodings = [ ["hex", "68656c6c6f20776f726c64"], ["HEX", "68656c6c6f20776f726c64"], ["base64", "aGVsbG8gd29ybGQ="], ["BASE64", "aGVsbG8gd29ybGQ="], ["utf8", "hello world"], ["utf-8", "hello world"], ];
for (const [encoding, value] of encodings) { const res = await new Promise((resolve) => { writeFile( "_fs_writeFile_test_file.txt", value, encoding as TextEncodings, resolve, ); });
const data = await Deno.readFile("_fs_writeFile_test_file.txt"); await Deno.remove("_fs_writeFile_test_file.txt"); assertEquals(res, null); assertEquals(decoder.decode(data), "hello world"); } },);
Deno.test("Path can be an URL", async function testCorrectWriteUsingURL() { const url = new URL( isWindows ? "file:///" + path .join(testDataDir, "_fs_writeFile_test_file_url.txt") .replace(/\\/g, "/") : "file://" + path.join(testDataDir, "_fs_writeFile_test_file_url.txt"), ); const filePath = path.fromFileUrl(url); const res = await new Promise((resolve) => { writeFile(url, "hello world", resolve); }); assert(res === null);
const data = await Deno.readFile(filePath); await Deno.remove(filePath); assertEquals(res, null); assertEquals(decoder.decode(data), "hello world");});
Deno.test("Mode is correctly set", async function testCorrectFileMode() { if (isWindows) return; const filename = "_fs_writeFile_test_file.txt";
const res = await new Promise((resolve) => { writeFile(filename, "hello world", { mode: 0o777 }, resolve); });
const fileInfo = await Deno.stat(filename); await Deno.remove(filename); assertEquals(res, null); assert(fileInfo && fileInfo.mode); assertEquals(fileInfo.mode & 0o777, 0o777);});
Deno.test( "Mode is not set when rid is passed", async function testCorrectFileModeRid() { if (isWindows) return;
const filename: string = await Deno.makeTempFile(); const file: Deno.FsFile = await Deno.open(filename, { create: true, write: true, read: true, });
await new Promise<void>((resolve, reject) => { writeFile(file.rid, "hello world", { mode: 0o777 }, (err) => { if (err) return reject(err); resolve(); }); }); Deno.close(file.rid);
const fileInfo = await Deno.stat(filename); await Deno.remove(filename); assert(fileInfo.mode); assertNotEquals(fileInfo.mode & 0o777, 0o777); },);
Deno.test( "Is cancellable with an AbortSignal", async function testIsCancellableWithAbortSignal() { const tempFile: string = await Deno.makeTempFile(); const controller = new AbortController(); const signal = controller.signal;
const writeFilePromise = new Promise<void>((resolve, reject) => { writeFile(tempFile, "hello world", { signal }, (err) => { if (err) return reject(err); resolve(); }); }); controller.abort();
await assertRejects( () => writeFilePromise, AbortError, );
Deno.removeSync(tempFile); },);
Deno.test( "Data is written synchronously to correct rid", function testCorrectWriteSyncUsingRid() { const tempFile: string = Deno.makeTempFileSync(); const file: Deno.FsFile = Deno.openSync(tempFile, { create: true, write: true, read: true, });
writeFileSync(file.rid, "hello world"); Deno.close(file.rid);
const data = Deno.readFileSync(tempFile); Deno.removeSync(tempFile); assertEquals(decoder.decode(data), "hello world"); },);
Deno.test( "Data is written to correct file encodings", function testCorrectWriteSyncUsingDifferentEncodings() { const encodings = [ ["hex", "68656c6c6f20776f726c64"], ["HEX", "68656c6c6f20776f726c64"], ["base64", "aGVsbG8gd29ybGQ="], ["BASE64", "aGVsbG8gd29ybGQ="], ["utf8", "hello world"], ["utf-8", "hello world"], ];
for (const [encoding, value] of encodings) { const file = "_fs_writeFileSync_test_file"; writeFileSync(file, value, encoding as TextEncodings);
const data = Deno.readFileSync(file); Deno.removeSync(file); assertEquals(decoder.decode(data), "hello world"); } },);
Deno.test( "Data is written synchronously to correct file", function testCorrectWriteSyncUsingPath() { const file = "_fs_writeFileSync_test_file";
writeFileSync(file, "hello world");
const data = Deno.readFileSync(file); Deno.removeSync(file); assertEquals(decoder.decode(data), "hello world"); },);
Deno.test("sync: Path can be an URL", function testCorrectWriteSyncUsingURL() { const filePath = path.join( testDataDir, "_fs_writeFileSync_test_file_url.txt", ); const url = new URL( isWindows ? "file:///" + filePath.replace(/\\/g, "/") : "file://" + filePath, ); writeFileSync(url, "hello world");
const data = Deno.readFileSync(filePath); Deno.removeSync(filePath); assertEquals(decoder.decode(data), "hello world");});
Deno.test( "Mode is correctly set when writing synchronously", function testCorrectFileModeSync() { if (isWindows) return; const filename = "_fs_writeFileSync_test_file.txt";
writeFileSync(filename, "hello world", { mode: 0o777 });
const fileInfo = Deno.statSync(filename); Deno.removeSync(filename); assert(fileInfo && fileInfo.mode); assertEquals(fileInfo.mode & 0o777, 0o777); },);
std
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