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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 09:22:09 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 09:22:09 +0000
commit43a97878ce14b72f0981164f87f2e35e14151312 (patch)
tree620249daf56c0258faa40cbdcf9cfba06de2a846 /testing/web-platform/tests/fs/script-tests/FileSystemWritableFileStream.js
parentInitial commit. (diff)
downloadfirefox-43a97878ce14b72f0981164f87f2e35e14151312.tar.xz
firefox-43a97878ce14b72f0981164f87f2e35e14151312.zip
Adding upstream version 110.0.1.upstream/110.0.1upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'testing/web-platform/tests/fs/script-tests/FileSystemWritableFileStream.js')
-rw-r--r--testing/web-platform/tests/fs/script-tests/FileSystemWritableFileStream.js105
1 files changed, 105 insertions, 0 deletions
diff --git a/testing/web-platform/tests/fs/script-tests/FileSystemWritableFileStream.js b/testing/web-platform/tests/fs/script-tests/FileSystemWritableFileStream.js
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index 0000000000..19dc6371cf
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+++ b/testing/web-platform/tests/fs/script-tests/FileSystemWritableFileStream.js
@@ -0,0 +1,105 @@
+'use strict';
+
+directory_test(async (t, root) => {
+ const handle = await createEmptyFile(t, 'trunc_shrink', root);
+ const stream = await cleanup_writable(t, await handle.createWritable());
+
+ await stream.write('1234567890');
+ await stream.truncate(5);
+ await stream.close();
+
+ assert_equals(await getFileContents(handle), '12345');
+ assert_equals(await getFileSize(handle), 5);
+}, 'truncate() to shrink a file');
+
+directory_test(async (t, root) => {
+ const handle = await createEmptyFile(t, 'trunc_grow', root);
+ const stream = await cleanup_writable(t, await handle.createWritable());
+
+ await stream.write('abc');
+ await stream.truncate(5);
+ await stream.close();
+
+ assert_equals(await getFileContents(handle), 'abc\0\0');
+ assert_equals(await getFileSize(handle), 5);
+}, 'truncate() to grow a file');
+
+directory_test(async (t, root) => {
+ const dir = await createDirectory(t, 'parent_dir', root);
+ const file_name = 'create_writable_fails_when_dir_removed.txt';
+ const handle = await createEmptyFile(t, file_name, dir);
+
+ await root.removeEntry('parent_dir', {recursive: true});
+ await promise_rejects_dom(t, 'NotFoundError', cleanup_writable(t, handle.createWritable()));
+}, 'createWritable() fails when parent directory is removed');
+
+directory_test(async (t, root) => {
+ const handle = await createFileWithContents(
+ t, 'atomic_file_is_copied.txt', 'fooks', root);
+ const stream = await cleanup_writable(t, await handle.createWritable({keepExistingData: true}));
+
+ await stream.write('bar');
+ await stream.close();
+ assert_equals(await getFileContents(handle), 'barks');
+ assert_equals(await getFileSize(handle), 5);
+}, 'createWritable({keepExistingData: true}): atomic writable file stream initialized with source contents');
+
+directory_test(async (t, root) => {
+ const handle = await createFileWithContents(
+ t, 'atomic_file_is_not_copied.txt', 'very long string', root);
+ const stream = await cleanup_writable(t, await handle.createWritable({keepExistingData: false}));
+
+ await stream.write('bar');
+ assert_equals(await getFileContents(handle), 'very long string');
+ await stream.close();
+ assert_equals(await getFileContents(handle), 'bar');
+ assert_equals(await getFileSize(handle), 3);
+}, 'createWritable({keepExistingData: false}): atomic writable file stream initialized with empty file');
+
+directory_test(async (t, root) => {
+ const handle = await createFileWithContents(
+ t, 'trunc_smaller_offset.txt', '1234567890', root);
+ const stream = await cleanup_writable(t, await handle.createWritable({keepExistingData: true}));
+
+ await stream.truncate(5);
+ await stream.write('abc');
+ await stream.close();
+
+ assert_equals(await getFileContents(handle), 'abc45');
+ assert_equals(await getFileSize(handle), 5);
+}, 'cursor position: truncate size > offset');
+
+directory_test(async (t, root) => {
+ const handle = await createFileWithContents(
+ t, 'trunc_bigger_offset.txt', '1234567890', root);
+ const stream = await cleanup_writable(t, await handle.createWritable({keepExistingData: true}));
+
+ await stream.seek(6);
+ await stream.truncate(5);
+ await stream.write('abc');
+ await stream.close();
+
+ assert_equals(await getFileContents(handle), '12345abc');
+ assert_equals(await getFileSize(handle), 8);
+}, 'cursor position: truncate size < offset');
+
+directory_test(async (t, root) => {
+ const handle = await createEmptyFile(t, 'contents', root);
+ const stream = await cleanup_writable(t, await handle.createWritable());
+ assert_false(stream.locked);
+
+ stream.write('abc');
+ assert_false(stream.locked);
+ stream.write('def');
+ assert_false(stream.locked);
+ stream.truncate(9);
+ assert_false(stream.locked);
+ stream.seek(0);
+ assert_false(stream.locked);
+ stream.write('xyz');
+ assert_false(stream.locked);
+ await stream.close();
+
+ assert_equals(await getFileContents(handle), 'xyzdef\0\0\0');
+ assert_equals(await getFileSize(handle), 9);
+}, 'commands are queued, stream is unlocked after each operation');