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<!DOCTYPE html>
<title>Encoding API: USVString surrogate handling when encoding</title>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script>
var bad = [
{
input: '\uD800',
expected: '\uFFFD',
name: 'lone surrogate lead'
},
{
input: '\uDC00',
expected: '\uFFFD',
name: 'lone surrogate trail'
},
{
input: '\uD800\u0000',
expected: '\uFFFD\u0000',
name: 'unmatched surrogate lead'
},
{
input: '\uDC00\u0000',
expected: '\uFFFD\u0000',
name: 'unmatched surrogate trail'
},
{
input: '\uDC00\uD800',
expected: '\uFFFD\uFFFD',
name: 'swapped surrogate pair'
},
{
input: '\uD834\uDD1E',
expected: '\uD834\uDD1E',
name: 'properly encoded MUSICAL SYMBOL G CLEF (U+1D11E)'
}
];
bad.forEach(function(t) {
test(function() {
var encoded = new TextEncoder().encode(t.input);
var decoded = new TextDecoder().decode(encoded);
assert_equals(decoded, t.expected);
}, 'USVString handling: ' + t.name);
});
test(function() {
assert_equals(new TextEncoder().encode().length, 0, 'Should default to empty string');
}, 'USVString default');
</script>
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