api-surrogates-utf8.any.js

Enable keyboard shortcuts

// META: global=window,dedicatedworker,shadowrealm

// 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);

});