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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 17:32:43 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 17:32:43 +0000 |
commit | 6bf0a5cb5034a7e684dcc3500e841785237ce2dd (patch) | |
tree | a68f146d7fa01f0134297619fbe7e33db084e0aa /dom/fs/test/common/test_writableFileStream.js | |
parent | Initial commit. (diff) | |
download | thunderbird-6bf0a5cb5034a7e684dcc3500e841785237ce2dd.tar.xz thunderbird-6bf0a5cb5034a7e684dcc3500e841785237ce2dd.zip |
Adding upstream version 1:115.7.0.upstream/1%115.7.0upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'dom/fs/test/common/test_writableFileStream.js')
-rw-r--r-- | dom/fs/test/common/test_writableFileStream.js | 93 |
1 files changed, 93 insertions, 0 deletions
diff --git a/dom/fs/test/common/test_writableFileStream.js b/dom/fs/test/common/test_writableFileStream.js new file mode 100644 index 0000000000..20226ff061 --- /dev/null +++ b/dom/fs/test/common/test_writableFileStream.js @@ -0,0 +1,93 @@ +/* Any copyright is dedicated to the Public Domain. + http://creativecommons.org/publicdomain/zero/1.0/ */ + +const allowCreate = { create: true }; + +exported_symbols.test0 = async function () { + let root = await navigator.storage.getDirectory(); + Assert.ok(!!root, "Can we access the root directory?"); + + const testFile = await root.getFileHandle("test.txt", allowCreate); + Assert.ok(!!testFile, "Can't access existing file"); + let writable = await testFile.createWritable(); + Assert.ok(!!writable, "Can't create WritableFileStream to existing file"); + + // Write a sentence to the end of the file. + const encoder = new TextEncoder(); + const writeBuffer = encoder.encode("Thank you for reading this."); + try { + dump("Trying to write...\n"); + await writable.write(writeBuffer); + dump("closing...\n"); + await writable.close(); + } catch (e) { + Assert.ok(false, "Couldn't write to WritableFileStream: " + e); + } + + // Read it back + // Get size of the file. + let file = await testFile.getFile(); + Assert.ok( + !!file, + "Can't create File to file written with WritableFileStream" + ); + let fileSize = file.size; + Assert.ok(fileSize == writeBuffer.byteLength); +}; + +exported_symbols.quotaTest = async function () { + const shrinkedStorageSizeKB = 5 * 1024; + const defaultDatabaseSize = 294912; + + // Shrink storage size to 5MB. + await Utils.shrinkStorageSize(shrinkedStorageSizeKB); + + let root = await navigator.storage.getDirectory(); + Assert.ok(root, "Can we access the root directory?"); + + // Fill entire storage. + const fileHandle = await root.getFileHandle("test.txt", allowCreate); + Assert.ok(!!fileHandle, "Can we get file handle?"); + + const writable = await fileHandle.createWritable(); + Assert.ok(!!writable, "Can we create writable file stream?"); + + const buffer = new ArrayBuffer( + shrinkedStorageSizeKB * 1024 - defaultDatabaseSize + ); + Assert.ok(!!buffer, "Can we create array buffer?"); + + const result = await writable.write(buffer); + Assert.equal(result, undefined, "Can we write entire buffer?"); + + // Try to write one more byte. + const fileHandle2 = await root.getFileHandle("test2.txt", allowCreate); + Assert.ok(!!fileHandle2, "Can we get file handle?"); + + const writable2 = await fileHandle2.createWritable(); + Assert.ok(!!writable2, "Can we create writable file stream?"); + + const buffer2 = new ArrayBuffer(1); + Assert.ok(!!buffer2, "Can we create array buffer?"); + + try { + await writable2.write(buffer2); + Assert.ok(false, "Should have thrown"); + } catch (ex) { + Assert.ok(true, "Did throw"); + Assert.ok(DOMException.isInstance(ex), "Threw DOMException"); + Assert.equal(ex.name, "QuotaExceededError", "Threw right DOMException"); + } + + await writable.close(); + // writable2 is already closed because of the failed write above + + await Utils.restoreStorageSize(); +}; + +for (const [key, value] of Object.entries(exported_symbols)) { + Object.defineProperty(value, "name", { + value: key, + writable: false, + }); +} |