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1 <!DOCTYPE html> | |
2 <meta charset=utf-8> | |
3 <title>Blob slice</title> | |
4 <link rel=help href="https://w3c.github.io/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> | |
11 test_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 | |
20 test(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 | |
163 var invalidTypes = [ | |
164 "\xFF", | |
165 "te\x09xt/plain", | |
166 "te\x00xt/plain", | |
167 "te\x1Fxt/plain", | |
168 "te\x7Fxt/plain" | |
169 ]; | |
170 invalidTypes.forEach(function(type) { | |
171 test_blob(function() { | |
172 var blob = new Blob(["PASS"]); | |
173 return blob.slice(0, 4, type); | |
174 }, { | |
175 expected: "PASS", | |
176 type: "", | |
177 desc: "Invalid contentType (" + format_value(type) + ")" | |
178 }); | |
179 }); | |
180 | |
181 var validTypes = [ | |
182 "te(xt/plain", | |
183 "te)xt/plain", | |
184 "te<xt/plain", | |
185 "te>xt/plain", | |
186 "te@xt/plain", | |
187 "te,xt/plain", | |
188 "te;xt/plain", | |
189 "te:xt/plain", | |
190 "te\\xt/plain", | |
191 "te\"xt/plain", | |
192 "te/xt/plain", | |
193 "te[xt/plain", | |
194 "te]xt/plain", | |
195 "te?xt/plain", | |
196 "te=xt/plain", | |
197 "te{xt/plain", | |
198 "te}xt/plain", | |
199 "te\x20xt/plain", | |
200 "TEXT/PLAIN", | |
201 "text/plain;charset = UTF-8", | |
202 "text/plain;charset=UTF-8" | |
203 ]; | |
204 validTypes.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> | |
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