| <!DOCTYPE html> |
| <meta charset=utf-8> |
| <title>Blob slice</title> |
| <link rel=help href="http://dev.w3.org/2006/webapi/FileAPI/#slice-method-algo"> |
| <link rel=author title="Saurabh Anand" href="mailto:saurabhanandiit@gmail.com"> |
| <script src="/resources/testharness.js"></script> |
| <script src="/resources/testharnessreport.js"></script> |
| <script src="../support/Blob.js"></script> |
| <div id="log"></div> |
| <script> |
| test_blob(function() { |
| var blobTemp = new Blob(["PASS"]); |
| return blobTemp.slice(); |
| }, { |
| expected: "PASS", |
| type: "", |
| desc: "no-argument Blob slice" |
| }); |
| |
| test(function() { |
| var blob1, blob2; |
| |
| test_blob(function() { |
| return blob1 = new Blob(["squiggle"]); |
| }, { |
| expected: "squiggle", |
| type: "", |
| desc: "blob1." |
| }); |
| |
| test_blob(function() { |
| return blob2 = new Blob(["steak"], {type: "content/type"}); |
| }, { |
| expected: "steak", |
| type: "content/type", |
| desc: "blob2." |
| }); |
| |
| var arrayBuffer = new ArrayBuffer(16); |
| var int8View = new Int8Array(arrayBuffer); |
| for (var i = 0; i < 16; i++) { |
| int8View[i] = i + 65; |
| } |
| |
| var testData = [ |
| [ |
| ["PASSSTRING"], |
| [{start: -6, contents: "STRING"}, |
| {start: -12, contents: "PASSSTRING"}, |
| {start: 4, contents: "STRING"}, |
| {start: 12, contents: ""}, |
| {start: 0, end: -6, contents: "PASS"}, |
| {start: 0, end: -12, contents: ""}, |
| {start: 0, end: 4, contents: "PASS"}, |
| {start: 0, end: 12, contents: "PASSSTRING"}, |
| {start: 7, end: 4, contents: ""}] |
| ], |
| |
| // Test 3 strings |
| [ |
| ["foo", "bar", "baz"], |
| [{start: 0, end: 9, contents: "foobarbaz"}, |
| {start: 0, end: 3, contents: "foo"}, |
| {start: 3, end: 9, contents: "barbaz"}, |
| {start: 6, end: 9, contents: "baz"}, |
| {start: 6, end: 12, contents: "baz"}, |
| {start: 0, end: 9, contents: "foobarbaz"}, |
| {start: 0, end: 11, contents: "foobarbaz"}, |
| {start: 10, end: 15, contents: ""}] |
| ], |
| |
| // Test string, Blob, string |
| [ |
| ["foo", blob1, "baz"], |
| [{start: 0, end: 3, contents: "foo"}, |
| {start: 3, end: 11, contents: "squiggle"}, |
| {start: 2, end: 4, contents: "os"}, |
| {start: 10, end: 12, contents: "eb"}] |
| ], |
| |
| // Test blob, string, blob |
| [ |
| [blob1, "foo", blob1], |
| [{start: 0, end: 8, contents: "squiggle"}, |
| {start: 7, end: 9, contents: "ef"}, |
| {start: 10, end: 12, contents: "os"}, |
| {start: 1, end: 4, contents: "qui"}, |
| {start: 12, end: 15, contents: "qui"}, |
| {start: 40, end: 60, contents: ""}] |
| ], |
| |
| // Test blobs all the way down |
| [ |
| [blob2, blob1, blob2], |
| [{start: 0, end: 5, contents: "steak"}, |
| {start: 5, end: 13, contents: "squiggle"}, |
| {start: 13, end: 18, contents: "steak"}, |
| {start: 1, end: 3, contents: "te"}, |
| {start: 6, end: 10, contents: "quig"}] |
| ], |
| |
| // Test an ArrayBufferView |
| [ |
| [int8View, blob1, "foo"], |
| [{start: 0, end: 8, contents: "ABCDEFGH"}, |
| {start: 8, end: 18, contents: "IJKLMNOPsq"}, |
| {start: 17, end: 20, contents: "qui"}, |
| {start: 4, end: 12, contents: "EFGHIJKL"}] |
| ], |
| |
| // Test a partial ArrayBufferView |
| [ |
| [new Uint8Array(arrayBuffer, 3, 5), blob1, "foo"], |
| [{start: 0, end: 8, contents: "DEFGHsqu"}, |
| {start: 8, end: 18, contents: "igglefoo"}, |
| {start: 4, end: 12, contents: "Hsquiggl"}] |
| ], |
| |
| // Test type coercion of a number |
| [ |
| [3, int8View, "foo"], |
| [{start: 0, end: 8, contents: "3ABCDEFG"}, |
| {start: 8, end: 18, contents: "HIJKLMNOPf"}, |
| {start: 17, end: 21, contents: "foo"}, |
| {start: 4, end: 12, contents: "DEFGHIJK"}] |
| ], |
| |
| [ |
| [(new Uint8Array([0, 255, 0])).buffer, |
| new Blob(['abcd']), |
| 'efgh', |
| 'ijklmnopqrstuvwxyz'], |
| [{start: 1, end: 4, contents: "\uFFFD\u0000a"}, |
| {start: 4, end: 8, contents: "bcde"}, |
| {start: 8, end: 12, contents: "fghi"}, |
| {start: 1, end: 12, contents: "\uFFFD\u0000abcdefghi"}] |
| ] |
| ]; |
| |
| testData.forEach(function(data, i) { |
| var blobs = data[0]; |
| var tests = data[1]; |
| tests.forEach(function(expectations, j) { |
| test(function() { |
| var blob = new Blob(blobs); |
| assert_true(blob instanceof Blob); |
| assert_false(blob instanceof File); |
| |
| test_blob(function() { |
| return expectations.end === undefined |
| ? blob.slice(expectations.start) |
| : blob.slice(expectations.start, expectations.end); |
| }, { |
| expected: expectations.contents, |
| type: "", |
| desc: "Slicing test: slice (" + i + "," + j + ")." |
| }); |
| }, "Slicing test (" + i + "," + j + ")."); |
| }); |
| }); |
| }, "Slices"); |
| |
| var invalidTypes = [ |
| "\xFF", |
| "te(xt/plain", |
| "te)xt/plain", |
| "te<xt/plain", |
| "te>xt/plain", |
| "te@xt/plain", |
| "te,xt/plain", |
| "te;xt/plain", |
| "te:xt/plain", |
| "te\\xt/plain", |
| "te\"xt/plain", |
| "te/xt/plain", |
| "te[xt/plain", |
| "te]xt/plain", |
| "te?xt/plain", |
| "te=xt/plain", |
| "te{xt/plain", |
| "te}xt/plain", |
| "te\x20xt/plain", |
| "te\x09xt/plain", |
| "te\x00xt/plain", |
| "te\x1Fxt/plain", |
| "te\x7Fxt/plain" |
| ]; |
| invalidTypes.forEach(function(type) { |
| test_blob(function() { |
| var blob = new Blob(["PASS"]); |
| return blob.slice(0, 4, type); |
| }, { |
| expected: "PASS", |
| type: "", |
| desc: "Invalid contentType (" + format_value(type) + ")" |
| }); |
| }); |
| |
| var validTypes = [ |
| "TEXT/PLAIN", |
| "text/plain;charset = UTF-8", |
| "text/plain;charset=UTF-8" |
| ]; |
| validTypes.forEach(function(type) { |
| test_blob(function() { |
| var blob = new Blob(["PASS"]); |
| return blob.slice(0, 4, type); |
| }, { |
| expected: "PASS", |
| type: type.toLowerCase(), |
| desc: "Valid contentType (" + format_value(type) + ")" |
| }); |
| }); |
| </script> |
