| <!DOCTYPE html> |
| <meta charset="utf-8"> |
| <title>Blob/Unicode interaction: normalization and encoding</title> |
| <script src="/resources/testharness.js"></script> |
| <script src="/resources/testharnessreport.js"></script> |
| <script> |
| 'use strict'; |
| |
| const OMICRON_WITH_OXIA = '\u1F79'; // NFC normalized to U+3CC |
| const CONTAINS_UNPAIRED_SURROGATES = 'abc\uDC00def\uD800ghi'; |
| const REPLACED = 'abc\uFFFDdef\uFFFDghi'; |
| |
| function readBlobAsPromise(blob) { |
| return new Promise((resolve, reject) => { |
| const reader = new FileReader(); |
| reader.readAsText(blob); |
| reader.onload = () => resolve(reader.result); |
| reader.onerror = () => reject(reader.error); |
| }); |
| } |
| |
| promise_test(async t => { |
| const blob = new Blob([OMICRON_WITH_OXIA]); |
| const result = await readBlobAsPromise(blob); |
| assert_equals(result, OMICRON_WITH_OXIA, 'String should not be normalized'); |
| }, 'Test that strings are not NFC normalized by Blob constructor'); |
| |
| promise_test(async t => { |
| const file = new File([OMICRON_WITH_OXIA], 'name'); |
| const result = await readBlobAsPromise(file); |
| assert_equals(result, OMICRON_WITH_OXIA, 'String should not be normalized'); |
| }, 'Test that strings are not NFC normalized by File constructor'); |
| |
| promise_test(async t => { |
| const blob = new Blob([CONTAINS_UNPAIRED_SURROGATES]); |
| const result = await readBlobAsPromise(blob); |
| assert_equals(result, REPLACED, 'Unpaired surrogates should be replaced.'); |
| }, 'Test that unpaired surrogates are replaced by Blob constructor'); |
| |
| promise_test(async t => { |
| const file = new File([CONTAINS_UNPAIRED_SURROGATES], 'name'); |
| const result = await readBlobAsPromise(file); |
| assert_equals(result, REPLACED, 'Unpaired surrogates should be replaced.'); |
| }, 'Test that unpaired surrogates are replaced by File constructor'); |
| |
| </script> |
