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cobalt / cobalt / e65d16557d961f20c673315a0486c82b2459d78d / . / src / third_party / web_platform_tests / FileAPI / blob / Blob-slice.html
blob: a66136b10f15c5f12aefc82513f42697765a7cce [file] [log] [blame]
Andrew Top61a84952019-04-30 15:07:33 -0700[diff] [blame]1<!DOCTYPE html>
2<meta charset=utf-8>
3<title>Blob slice</title>
4<link rel=help href="http://dev.w3.org/2006/webapi/FileAPI/#slice-method-algo">
5<link rel=author title="Saurabh Anand" href="mailto:saurabhanandiit@gmail.com">
6<script src="/resources/testharness.js"></script>
7<script src="/resources/testharnessreport.js"></script>
8<script src="../support/Blob.js"></script>
9<div id="log"></div>
10<script>
11test_blob(function() {
12 var blobTemp = new Blob(["PASS"]);
13 return blobTemp.slice();
14}, {
15 expected: "PASS",
16 type: "",
17 desc: "no-argument Blob slice"
18});
19
20test(function() {
21 var blob1, blob2;
22
23 test_blob(function() {
24 return blob1 = new Blob(["squiggle"]);
25 }, {
26 expected: "squiggle",
27 type: "",
28 desc: "blob1."
29 });
30
31 test_blob(function() {
32 return blob2 = new Blob(["steak"], {type: "content/type"});
33 }, {
34 expected: "steak",
35 type: "content/type",
36 desc: "blob2."
37 });
38
39 var arrayBuffer = new ArrayBuffer(16);
40 var int8View = new Int8Array(arrayBuffer);
41 for (var i = 0; i < 16; i++) {
42 int8View[i] = i + 65;
43 }
44
45 var testData = [
46 [
47 ["PASSSTRING"],
48 [{start: -6, contents: "STRING"},
49 {start: -12, contents: "PASSSTRING"},
50 {start: 4, contents: "STRING"},
51 {start: 12, contents: ""},
52 {start: 0, end: -6, contents: "PASS"},
53 {start: 0, end: -12, contents: ""},
54 {start: 0, end: 4, contents: "PASS"},
55 {start: 0, end: 12, contents: "PASSSTRING"},
56 {start: 7, end: 4, contents: ""}]
57 ],
58
59 // Test 3 strings
60 [
61 ["foo", "bar", "baz"],
62 [{start: 0, end: 9, contents: "foobarbaz"},
63 {start: 0, end: 3, contents: "foo"},
64 {start: 3, end: 9, contents: "barbaz"},
65 {start: 6, end: 9, contents: "baz"},
66 {start: 6, end: 12, contents: "baz"},
67 {start: 0, end: 9, contents: "foobarbaz"},
68 {start: 0, end: 11, contents: "foobarbaz"},
69 {start: 10, end: 15, contents: ""}]
70 ],
71
72 // Test string, Blob, string
73 [
74 ["foo", blob1, "baz"],
75 [{start: 0, end: 3, contents: "foo"},
76 {start: 3, end: 11, contents: "squiggle"},
77 {start: 2, end: 4, contents: "os"},
78 {start: 10, end: 12, contents: "eb"}]
79 ],
80
81 // Test blob, string, blob
82 [
83 [blob1, "foo", blob1],
84 [{start: 0, end: 8, contents: "squiggle"},
85 {start: 7, end: 9, contents: "ef"},
86 {start: 10, end: 12, contents: "os"},
87 {start: 1, end: 4, contents: "qui"},
88 {start: 12, end: 15, contents: "qui"},
89 {start: 40, end: 60, contents: ""}]
90 ],
91
92 // Test blobs all the way down
93 [
94 [blob2, blob1, blob2],
95 [{start: 0, end: 5, contents: "steak"},
96 {start: 5, end: 13, contents: "squiggle"},
97 {start: 13, end: 18, contents: "steak"},
98 {start: 1, end: 3, contents: "te"},
99 {start: 6, end: 10, contents: "quig"}]
100 ],
101
102 // Test an ArrayBufferView
103 [
104 [int8View, blob1, "foo"],
105 [{start: 0, end: 8, contents: "ABCDEFGH"},
106 {start: 8, end: 18, contents: "IJKLMNOPsq"},
107 {start: 17, end: 20, contents: "qui"},
108 {start: 4, end: 12, contents: "EFGHIJKL"}]
109 ],
110
111 // Test a partial ArrayBufferView
112 [
113 [new Uint8Array(arrayBuffer, 3, 5), blob1, "foo"],
114 [{start: 0, end: 8, contents: "DEFGHsqu"},
115 {start: 8, end: 18, contents: "igglefoo"},
116 {start: 4, end: 12, contents: "Hsquiggl"}]
117 ],
118
119 // Test type coercion of a number
120 [
121 [3, int8View, "foo"],
122 [{start: 0, end: 8, contents: "3ABCDEFG"},
123 {start: 8, end: 18, contents: "HIJKLMNOPf"},
124 {start: 17, end: 21, contents: "foo"},
125 {start: 4, end: 12, contents: "DEFGHIJK"}]
126 ],
127
128 [
129 [(new Uint8Array([0, 255, 0])).buffer,
130 new Blob(['abcd']),
131 'efgh',
132 'ijklmnopqrstuvwxyz'],
133 [{start: 1, end: 4, contents: "\uFFFD\u0000a"},
134 {start: 4, end: 8, contents: "bcde"},
135 {start: 8, end: 12, contents: "fghi"},
136 {start: 1, end: 12, contents: "\uFFFD\u0000abcdefghi"}]
137 ]
138 ];
139
140 testData.forEach(function(data, i) {
141 var blobs = data[0];
142 var tests = data[1];
143 tests.forEach(function(expectations, j) {
144 test(function() {
145 var blob = new Blob(blobs);
146 assert_true(blob instanceof Blob);
147 assert_false(blob instanceof File);
148
149 test_blob(function() {
150 return expectations.end === undefined
151 ? blob.slice(expectations.start)
152 : blob.slice(expectations.start, expectations.end);
153 }, {
154 expected: expectations.contents,
155 type: "",
156 desc: "Slicing test: slice (" + i + "," + j + ")."
157 });
158 }, "Slicing test (" + i + "," + j + ").");
159 });
160 });
161}, "Slices");
162
163var invalidTypes = [
164 "\xFF",
165 "te(xt/plain",
166 "te)xt/plain",
167 "te<xt/plain",
168 "te>xt/plain",
169 "te@xt/plain",
170 "te,xt/plain",
171 "te;xt/plain",
172 "te:xt/plain",
173 "te\\xt/plain",
174 "te\"xt/plain",
175 "te/xt/plain",
176 "te[xt/plain",
177 "te]xt/plain",
178 "te?xt/plain",
179 "te=xt/plain",
180 "te{xt/plain",
181 "te}xt/plain",
182 "te\x20xt/plain",
183 "te\x09xt/plain",
184 "te\x00xt/plain",
185 "te\x1Fxt/plain",
186 "te\x7Fxt/plain"
187];
188invalidTypes.forEach(function(type) {
189 test_blob(function() {
190 var blob = new Blob(["PASS"]);
191 return blob.slice(0, 4, type);
192 }, {
193 expected: "PASS",
194 type: "",
195 desc: "Invalid contentType (" + format_value(type) + ")"
196 });
197});
198
199var validTypes = [
200 "TEXT/PLAIN",
201 "text/plain;charset = UTF-8",
202 "text/plain;charset=UTF-8"
203];
204validTypes.forEach(function(type) {
205 test_blob(function() {
206 var blob = new Blob(["PASS"]);
207 return blob.slice(0, 4, type);
208 }, {
209 expected: "PASS",
210 type: type.toLowerCase(),
211 desc: "Valid contentType (" + format_value(type) + ")"
212 });
213});
214</script>