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-rw-r--r--testing/web-platform/tests/encoding/api-surrogates-utf8.any.js48
1 files changed, 48 insertions, 0 deletions
diff --git a/testing/web-platform/tests/encoding/api-surrogates-utf8.any.js b/testing/web-platform/tests/encoding/api-surrogates-utf8.any.js
new file mode 100644
index 0000000000..a4ced03d42
--- /dev/null
+++ b/testing/web-platform/tests/encoding/api-surrogates-utf8.any.js
@@ -0,0 +1,48 @@
+// META: title=Encoding API: Invalid UTF-16 surrogates with UTF-8 encoding
+
+var badStrings = [
+ {
+ input: 'abc123',
+ expected: [0x61, 0x62, 0x63, 0x31, 0x32, 0x33],
+ decoded: 'abc123',
+ name: 'Sanity check'
+ },
+ {
+ input: '\uD800',
+ expected: [0xef, 0xbf, 0xbd],
+ decoded: '\uFFFD',
+ name: 'Surrogate half (low)'
+ },
+ {
+ input: '\uDC00',
+ expected: [0xef, 0xbf, 0xbd],
+ decoded: '\uFFFD',
+ name: 'Surrogate half (high)'
+ },
+ {
+ input: 'abc\uD800123',
+ expected: [0x61, 0x62, 0x63, 0xef, 0xbf, 0xbd, 0x31, 0x32, 0x33],
+ decoded: 'abc\uFFFD123',
+ name: 'Surrogate half (low), in a string'
+ },
+ {
+ input: 'abc\uDC00123',
+ expected: [0x61, 0x62, 0x63, 0xef, 0xbf, 0xbd, 0x31, 0x32, 0x33],
+ decoded: 'abc\uFFFD123',
+ name: 'Surrogate half (high), in a string'
+ },
+ {
+ input: '\uDC00\uD800',
+ expected: [0xef, 0xbf, 0xbd, 0xef, 0xbf, 0xbd],
+ decoded: '\uFFFD\uFFFD',
+ name: 'Wrong order'
+ }
+];
+
+badStrings.forEach(function(t) {
+ test(function() {
+ var encoded = new TextEncoder().encode(t.input);
+ assert_array_equals([].slice.call(encoded), t.expected);
+ assert_equals(new TextDecoder('utf-8').decode(encoded), t.decoded);
+ }, 'Invalid surrogates encoded into UTF-8: ' + t.name);
+});