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Issue 240283013: Convert Encoding API tests to W3C testharness.js (Closed) Base URL: svn://svn.chromium.org/blink/trunk
Patch Set: Created 6 years, 8 months ago
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« LayoutTests/fast/encoding/api/surrogate-pairs.html ('K') | « LayoutTests/fast/encoding/api/surrogate-pairs-expected.txt ('k') | LayoutTests/fast/encoding/api/utf-round-trip-expected.txt » ('j') | no next file with comments »
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1 <!DOCTYPE html> 1 <!DOCTYPE html>
2 <script src="../../../resources/js-test.js"></script> 2 <title>Encoding API: UTF encoding round trips</title>
3 <script src="../../../resources/testharness.js"></script>
4 <script src="../../../resources/testharnessreport.js"></script>
3 <script src="resources/shared.js"></script> 5 <script src="resources/shared.js"></script>
4 <script> 6 <script>
5 7
6 description("Sanity check the Encoding API's handling of UTF encodings."); 8 var BATCH_SIZE = 0x1000; // Convert in batches spanning this many code points.
7 9 var SKIP_SIZE = 0x77; // For efficiency, don't test every code point.
8 BATCH_SIZE = 0x1000; // Convert in batches spanning this made code points.
9 SKIP_SIZE = 0x77; // For efficiency, don't test every code point.
10 quiet = true; // Don't log every matching range.
11 10
12 function fromCodePoint(cp) { 11 function fromCodePoint(cp) {
13 if (0xd800 <= cp && cp <= 0xdfff) throw new Error('Invalid code point'); 12 if (0xD800 <= cp && cp <= 0xDFFF) throw new Error('Invalid code point');
14 13
15 if (cp > 0xffff) { 14 if (cp <= 0xFFFF)
16 // outside BMP - encode as surrogate pair 15 return String.fromCharCode(cp);
17 return String.fromCharCode(0xd800 + ((cp >> 10) & 0x3ff), 0xdc00 + (cp & 0x3ff)); 16
18 } 17 // outside BMP - encode as surrogate pair
19 return String.fromCharCode(i); 18 return String.fromCharCode(0xD800 + ((cp >> 10) & 0x3FF), 0xDC00 + (cp & 0x3 FF));
20 } 19 }
21 20
22 function makeBatch(cp) { 21 function makeBatch(cp) {
23 var string = ''; 22 var string = '';
24 for (var i = cp; i < cp + BATCH_SIZE && cp < 0x10FFFF; i += SKIP_SIZE) { 23 for (var i = cp; i < cp + BATCH_SIZE && cp < 0x10FFFF; i += SKIP_SIZE) {
25 if (0xd800 <= i && i <= 0xdfff) { 24 if (0xD800 <= i && i <= 0xDFFF) {
26 // surrogate half 25 // surrogate half
27 continue; 26 continue;
28 } 27 }
29 string += fromCodePoint(i); 28 string += fromCodePoint(i);
30 } 29 }
31 return string; 30 return string;
32 } 31 }
33 32
34 function testEncodeDecode(encoding, min, max) {
35 debug(encoding + " - Encode/Decode Range " + cpname(min) + " - " + cpname(ma x));
36
37 function cpname(n) {
38 return 'U+' + ((n <= 0xFFFF) ?
39 ('0000' + n.toString(16).toUpperCase()).slice(-4) :
40 n.toString(16).toUpperCase());
41 }
42
43 for (i = min; i < max; i += BATCH_SIZE) {
44 string = makeBatch(i);
45 encoded = new TextEncoder(encoding).encode(string);
46 decoded = new TextDecoder(encoding).decode(encoded);
47 shouldBe("string", "decoded", quiet);
48 }
49
50 debug("no output means all ranges matched");
51 debug("");
52 }
53
54 utf_encodings.forEach(function(encoding) { 33 utf_encodings.forEach(function(encoding) {
55 testEncodeDecode(encoding, 0, 0x10FFFF); 34 test(function() {
35 for (var i = 0; i < 0x10FFFF; i += BATCH_SIZE) {
36 var string = makeBatch(i);
37 var encoded = new TextEncoder(encoding).encode(string);
38 var decoded = new TextDecoder(encoding).decode(encoded);
39 assert_equals(decoded, string);
40 }
41 }, encoding + ' - encode/decode round trip');
56 }); 42 });
57 43
58 44
59 // Inspired by: 45 // Inspired by:
60 // http://ecmanaut.blogspot.com/2006/07/encoding-decoding-utf8-in-javascript.htm l 46 // http://ecmanaut.blogspot.com/2006/07/encoding-decoding-utf8-in-javascript.htm l
61 function encode_utf8(string) { 47 function encode_utf8(string) {
62 var utf8 = unescape(encodeURIComponent(string)); 48 var utf8 = unescape(encodeURIComponent(string));
63 var octets = [], i; 49 var octets = [];
64 for (i = 0; i < utf8.length; i += 1) { 50 for (var i = 0; i < utf8.length; i += 1)
65 octets.push(utf8.charCodeAt(i)); 51 octets.push(utf8.charCodeAt(i));
66 }
67 return octets; 52 return octets;
68 } 53 }
69 54
70 function decode_utf8(octets) { 55 function decode_utf8(octets) {
71 var utf8 = String.fromCharCode.apply(null, octets); 56 var utf8 = String.fromCharCode.apply(null, octets);
72 return decodeURIComponent(escape(utf8)); 57 return decodeURIComponent(escape(utf8));
73 } 58 }
74 59
75 debug("UTF-8 encoding (compare against unescape/encodeURIComponent)"); 60 test(function() {
76 for (i = 0; i < 0x10FFFF; i += BATCH_SIZE) { 61 for (var i = 0; i < 0x10FFFF; i += BATCH_SIZE) {
77 str = makeBatch(i); 62 var string = makeBatch(i);
78 expected = encode_utf8(str); 63 var expected = encode_utf8(string);
79 actual = new TextEncoder('UTF-8').encode(str); 64 var actual = new TextEncoder('UTF-8').encode(string);
80 shouldBe("actual", "expected", quiet); 65 assert_array_equals(actual, expected);
81 } 66 }
82 debug("no output means all ranges matched"); 67 }, 'UTF-8 encoding (compare against unescape/encodeURIComponent)');
83 debug("");
84 68
85 debug("UTF-8 decoding (compare against decodeURIComponent/escape)"); 69 test(function() {
86 for (i = 0; i < 0x10FFFF; i += BATCH_SIZE) { 70 for (var i = 0; i < 0x10FFFF; i += BATCH_SIZE) {
87 str = makeBatch(i); 71 var string = makeBatch(i);
88 encoded = encode_utf8(str); 72 var encoded = encode_utf8(string);
89 expected = decode_utf8(encoded); 73 var expected = decode_utf8(encoded);
90 actual = new TextDecoder('UTF-8').decode(new Uint8Array(encoded)); 74 var actual = new TextDecoder('UTF-8').decode(new Uint8Array(encoded));
91 shouldBe("actual", "expected", quiet); 75 assert_equals(actual, expected);
92 } 76 }
93 debug("no output means all ranges matched"); 77 }, 'UTF-8 decoding (compare against decodeURIComponent/escape)');
94 debug("");
95 78
96 </script> 79 </script>
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« LayoutTests/fast/encoding/api/surrogate-pairs.html ('K') | « LayoutTests/fast/encoding/api/surrogate-pairs-expected.txt ('k') | LayoutTests/fast/encoding/api/utf-round-trip-expected.txt » ('j') | no next file with comments »

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