| // META: script=resources/test-helpers.js |
| promise_test(async t => cleanupSandboxedFileSystem(), |
| 'Cleanup to setup test environment'); |
| |
| promise_test(async t => { |
| const handle = await createEmptyFile(t, 'empty_blob'); |
| const writer = await handle.createWriter(); |
| |
| await writer.write(0, new Blob([])); |
| await writer.close(); |
| |
| assert_equals(await getFileContents(handle), ''); |
| assert_equals(await getFileSize(handle), 0); |
| }, 'write() with an empty blob to an empty file'); |
| |
| promise_test(async t => { |
| const handle = await createEmptyFile(t, 'valid_blob'); |
| const writer = await handle.createWriter(); |
| |
| await writer.write(0, new Blob(['1234567890'])); |
| await writer.close(); |
| |
| assert_equals(await getFileContents(handle), '1234567890'); |
| assert_equals(await getFileSize(handle), 10); |
| }, 'write() a blob to an empty file'); |
| |
| promise_test(async t => { |
| const handle = await createEmptyFile(t, 'blob_with_offset'); |
| const writer = await handle.createWriter(); |
| |
| await writer.write(0, new Blob(['1234567890'])); |
| await writer.write(4, new Blob(['abc'])); |
| await writer.close(); |
| |
| assert_equals(await getFileContents(handle), '1234abc890'); |
| assert_equals(await getFileSize(handle), 10); |
| }, 'write() called with a blob and a valid offset'); |
| |
| promise_test(async t => { |
| const handle = await createEmptyFile(t, 'bad_offset'); |
| const writer = await handle.createWriter(); |
| |
| await promise_rejects(t, 'InvalidStateError', writer.write(4, new Blob(['abc']))); |
| await writer.close(); |
| |
| assert_equals(await getFileContents(handle), ''); |
| assert_equals(await getFileSize(handle), 0); |
| }, 'write() called with an invalid offset'); |
| |
| promise_test(async t => { |
| const handle = await createEmptyFile(t, 'empty_string'); |
| const writer = await handle.createWriter(); |
| |
| await writer.write(0, ''); |
| await writer.close(); |
| assert_equals(await getFileContents(handle), ''); |
| assert_equals(await getFileSize(handle), 0); |
| }, 'write() with an empty string to an empty file'); |
| |
| promise_test(async t => { |
| const handle = await createEmptyFile(t, 'valid_utf8_string'); |
| const writer = await handle.createWriter(); |
| |
| await writer.write(0, 'foo🤘'); |
| await writer.close(); |
| assert_equals(await getFileContents(handle), 'foo🤘'); |
| assert_equals(await getFileSize(handle), 7); |
| }, 'write() with a valid utf-8 string'); |
| |
| promise_test(async t => { |
| const handle = await createEmptyFile(t, 'string_with_unix_line_ending'); |
| const writer = await handle.createWriter(); |
| |
| await writer.write(0, 'foo\n'); |
| await writer.close(); |
| assert_equals(await getFileContents(handle), 'foo\n'); |
| assert_equals(await getFileSize(handle), 4); |
| }, 'write() with a string with unix line ending preserved'); |
| |
| promise_test(async t => { |
| const handle = await createEmptyFile(t, 'string_with_windows_line_ending'); |
| const writer = await handle.createWriter(); |
| |
| await writer.write(0, 'foo\r\n'); |
| await writer.close(); |
| assert_equals(await getFileContents(handle), 'foo\r\n'); |
| assert_equals(await getFileSize(handle), 5); |
| }, 'write() with a string with windows line ending preserved'); |
| |
| promise_test(async t => { |
| const handle = await createEmptyFile(t, 'empty_array_buffer'); |
| const writer = await handle.createWriter(); |
| |
| let buf = new ArrayBuffer(0); |
| await writer.write(0, buf); |
| await writer.close(); |
| assert_equals(await getFileContents(handle), ''); |
| assert_equals(await getFileSize(handle), 0); |
| }, 'write() with an empty array buffer to an empty file'); |
| |
| promise_test(async t => { |
| const handle = await createEmptyFile(t, 'valid_string_typed_byte_array'); |
| const writer = await handle.createWriter(); |
| |
| let buf = new ArrayBuffer(3); |
| let intView = new Uint8Array(buf); |
| intView[0] = 0x66; |
| intView[1] = 0x6f; |
| intView[2] = 0x6f; |
| await writer.write(0, buf); |
| await writer.close(); |
| assert_equals(await getFileContents(handle), 'foo'); |
| assert_equals(await getFileSize(handle), 3); |
| }, 'write() with a valid typed array buffer'); |
| |
| promise_test(async t => { |
| const handle = await createEmptyFile(t, 'trunc_shrink'); |
| const writer = await handle.createWriter(); |
| |
| await writer.write(0, new Blob(['1234567890'])); |
| await writer.truncate(5); |
| await writer.close(); |
| |
| assert_equals(await getFileContents(handle), '12345'); |
| assert_equals(await getFileSize(handle), 5); |
| }, 'truncate() to shrink a file'); |
| |
| promise_test(async t => { |
| const handle = await createEmptyFile(t, 'trunc_grow'); |
| const writer = await handle.createWriter(); |
| |
| await writer.write(0, new Blob(['abc'])); |
| await writer.truncate(5); |
| await writer.close(); |
| |
| assert_equals(await getFileContents(handle), 'abc\0\0'); |
| assert_equals(await getFileSize(handle), 5); |
| }, 'truncate() to grow a file'); |
| |
| promise_test(async t => { |
| const root = await FileSystemDirectoryHandle.getSystemDirectory({ type: 'sandbox' }); |
| const dir = await createDirectory(t, 'parent_dir', root); |
| const file_name = 'create_writer_fails_when_dir_removed.txt'; |
| const handle = await createEmptyFile(t, file_name, dir); |
| |
| await root.removeEntry('parent_dir', {recursive: true}); |
| await promise_rejects(t, 'NotFoundError', handle.createWriter()); |
| }, 'createWriter() fails when parent directory is removed'); |
| |
| promise_test(async t => { |
| const root = await FileSystemDirectoryHandle.getSystemDirectory({ type: 'sandbox' }); |
| const dir = await createDirectory(t, 'parent_dir', root); |
| const file_name = 'write_fails_when_dir_removed.txt'; |
| const handle = await createEmptyFile(t, file_name, dir); |
| const writer = await handle.createWriter(); |
| |
| await root.removeEntry('parent_dir', {recursive: true}); |
| await promise_rejects(t, 'NotFoundError', writer.write(0, new Blob(['foo']))); |
| }, 'write() fails when parent directory is removed'); |
| |
| promise_test(async t => { |
| const root = await FileSystemDirectoryHandle.getSystemDirectory({ type: 'sandbox' }); |
| const dir = await createDirectory(t, 'parent_dir', root); |
| const file_name = 'truncate_fails_when_dir_removed.txt'; |
| const handle = await createEmptyFile(t, file_name, dir); |
| const writer = await handle.createWriter(); |
| |
| await root.removeEntry('parent_dir', {recursive: true}); |
| await promise_rejects(t, 'NotFoundError', writer.truncate(0)); |
| }, 'truncate() fails when parent directory is removed'); |
| |
| promise_test(async t => { |
| const root = await FileSystemDirectoryHandle.getSystemDirectory({ type: 'sandbox' }); |
| const dir = await createDirectory(t, 'parent_dir', root); |
| const file_name = 'close_fails_when_dir_removed.txt'; |
| const handle = await createEmptyFile(t, file_name, dir); |
| const writer = await handle.createWriter(); |
| await writer.write(0, new Blob(['foo'])); |
| |
| await root.removeEntry('parent_dir', {recursive: true}); |
| await promise_rejects(t, 'NotFoundError', writer.close()); |
| }, 'atomic writes: close() fails when parent directory is removed'); |
| |
| promise_test(async t => { |
| const handle = await createEmptyFile(t, 'atomic_writes.txt'); |
| const writer = await handle.createWriter(); |
| await writer.write(0, new Blob(['foox'])); |
| |
| const writer2 = await handle.createWriter(); |
| await writer2.write(0, new Blob(['bar'])); |
| |
| assert_equals(await getFileSize(handle), 0); |
| |
| await writer2.close(); |
| assert_equals(await getFileContents(handle), 'bar'); |
| assert_equals(await getFileSize(handle), 3); |
| |
| await writer.close(); |
| assert_equals(await getFileContents(handle), 'foox'); |
| assert_equals(await getFileSize(handle), 4); |
| }, 'atomic writes: writers make atomic changes on close'); |
| |
| promise_test(async t => { |
| const handle = await createEmptyFile(t, 'atomic_write_after_close.txt'); |
| const writer = await handle.createWriter(); |
| await writer.write(0, new Blob(['foo'])); |
| |
| await writer.close(); |
| assert_equals(await getFileContents(handle), 'foo'); |
| assert_equals(await getFileSize(handle), 3); |
| |
| await promise_rejects(t, 'InvalidStateError', writer.write(0, new Blob(['abc']))); |
| }, 'atomic writes: write() after close() fails'); |
| |
| promise_test(async t => { |
| const handle = await createEmptyFile(t, 'atomic_truncate_after_close.txt'); |
| const writer = await handle.createWriter(); |
| await writer.write(0, new Blob(['foo'])); |
| |
| await writer.close(); |
| assert_equals(await getFileContents(handle), 'foo'); |
| assert_equals(await getFileSize(handle), 3); |
| |
| await promise_rejects(t, 'InvalidStateError', writer.truncate(0)); |
| }, 'atomic writes: truncate() after close() fails'); |
| |
| promise_test(async t => { |
| const handle = await createEmptyFile(t, 'atomic_close_after_close.txt'); |
| const writer = await handle.createWriter(); |
| await writer.write(0, new Blob(['foo'])); |
| |
| await writer.close(); |
| assert_equals(await getFileContents(handle), 'foo'); |
| assert_equals(await getFileSize(handle), 3); |
| |
| await promise_rejects(t, 'InvalidStateError', writer.close()); |
| }, 'atomic writes: close() after close() fails'); |
| |
| promise_test(async t => { |
| const handle = await createEmptyFile(t, 'there_can_be_only_one.txt'); |
| const writer = await handle.createWriter(); |
| await writer.write(0, new Blob(['foo'])); |
| |
| // This test might be flaky if there is a race condition allowing |
| // close() to be called multiple times. |
| let success_promises = [...Array(100)].map(() => writer |
| .close() |
| .then(() => 1) |
| .catch(() => 0)); |
| let close_attempts = await Promise.all(success_promises); |
| let success_count = close_attempts.reduce((x,y) => x + y); |
| assert_equals(success_count, 1); |
| }, 'atomic writes: only one close() operation may succeed'); |
| |
| promise_test(async t => { |
| const handle = await createFileWithContents(t, 'atomic_file_is_copied.txt', 'fooks'); |
| const writer = await handle.createWriter({keepExistingData: true}); |
| |
| await writer.write(0, new Blob(['bar'])); |
| await writer.close(); |
| assert_equals(await getFileContents(handle), 'barks'); |
| assert_equals(await getFileSize(handle), 5); |
| }, 'createWriter({keepExistingData: true}): atomic writer initialized with source contents'); |
| |
| promise_test(async t => { |
| const handle = await createFileWithContents(t, 'atomic_file_is_not_copied.txt', 'very long string'); |
| const writer = await handle.createWriter({keepExistingData: false}); |
| |
| await writer.write(0, new Blob(['bar'])); |
| assert_equals(await getFileContents(handle), 'very long string'); |
| await writer.close(); |
| assert_equals(await getFileContents(handle), 'bar'); |
| assert_equals(await getFileSize(handle), 3); |
| }, 'createWriter({keepExistingData: false}): atomic writer initialized with empty file'); |
| |
| promise_test(async t => { |
| const root = await FileSystemDirectoryHandle.getSystemDirectory({ type: 'sandbox' }); |
| const dir = await createDirectory(t, 'parent_dir', root); |
| const file_name = 'atomic_writer_persists_removed.txt'; |
| const handle = await createFileWithContents(t, file_name, 'foo', dir); |
| |
| const writer = await handle.createWriter(); |
| await writer.write(0, new Blob(['bar'])); |
| |
| await dir.removeEntry(file_name); |
| await promise_rejects(t, 'NotFoundError', getFileContents(handle)); |
| |
| await writer.close(); |
| assert_equals(await getFileContents(handle), 'bar'); |
| assert_equals(await getFileSize(handle), 3); |
| }, 'atomic writes: writer persists file on close, even if file is removed'); |