Import Cobalt 19.master.0.203780
Includes the following patches:
https://cobalt-review.googlesource.com/c/cobalt/+/5210
by errong.leng@samsung.com
https://cobalt-review.googlesource.com/c/cobalt/+/5270
by linus.wang@samsung.com
diff --git a/src/third_party/web_platform_tests/encoding/textdecoder-byte-order-marks.html b/src/third_party/web_platform_tests/encoding/textdecoder-byte-order-marks.html
new file mode 100644
index 0000000..8ef1679
--- /dev/null
+++ b/src/third_party/web_platform_tests/encoding/textdecoder-byte-order-marks.html
@@ -0,0 +1,48 @@
+<!DOCTYPE html>
+<title>Encoding API: Byte-order marks</title>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script>
+
+var testCases = [
+ {
+ encoding: 'utf-8',
+ bom: [0xEF, 0xBB, 0xBF],
+ bytes: [0x7A, 0xC2, 0xA2, 0xE6, 0xB0, 0xB4, 0xF0, 0x9D, 0x84, 0x9E, 0xF4, 0x8F, 0xBF, 0xBD]
+ },
+ {
+ encoding: 'utf-16le',
+ bom: [0xff, 0xfe],
+ bytes: [0x7A, 0x00, 0xA2, 0x00, 0x34, 0x6C, 0x34, 0xD8, 0x1E, 0xDD, 0xFF, 0xDB, 0xFD, 0xDF]
+ },
+ {
+ encoding: 'utf-16be',
+ bom: [0xfe, 0xff],
+ bytes: [0x00, 0x7A, 0x00, 0xA2, 0x6C, 0x34, 0xD8, 0x34, 0xDD, 0x1E, 0xDB, 0xFF, 0xDF, 0xFD]
+ }
+];
+
+var string = 'z\xA2\u6C34\uD834\uDD1E\uDBFF\uDFFD'; // z, cent, CJK water, G-Clef, Private-use character
+
+testCases.forEach(function(t) {
+ test(function() {
+
+ var decoder = new TextDecoder(t.encoding);
+ assert_equals(decoder.decode(new Uint8Array(t.bytes)), string,
+ 'Sequence without BOM should decode successfully');
+
+ assert_equals(decoder.decode(new Uint8Array(t.bom.concat(t.bytes))), string,
+ 'Sequence with BOM should decode successfully (with no BOM present in output)');
+
+ testCases.forEach(function(o) {
+ if (o === t)
+ return;
+
+ assert_not_equals(decoder.decode(new Uint8Array(o.bom.concat(t.bytes))), string,
+ 'Mismatching BOM should not be ignored - treated as garbage bytes.');
+ });
+
+ }, 'Byte-order marks: ' + t.encoding);
+});
+
+</script>
