|
| 1 | +// META: title=File constructor |
| 2 | + |
| 3 | +const to_string_obj = { toString: () => 'a string' }; |
| 4 | +const to_string_throws = { toString: () => { throw new Error('expected'); } }; |
| 5 | + |
| 6 | +test(function() { |
| 7 | + assert_true("File" in globalThis, "globalThis should have a File property."); |
| 8 | +}, "File interface object exists"); |
| 9 | + |
| 10 | +test(t => { |
| 11 | + assert_throws_js(TypeError, () => new File(), |
| 12 | + 'Bits argument is required'); |
| 13 | + assert_throws_js(TypeError, () => new File([]), |
| 14 | + 'Name argument is required'); |
| 15 | +}, 'Required arguments'); |
| 16 | + |
| 17 | +function test_first_argument(arg1, expectedSize, testName) { |
| 18 | + test(function() { |
| 19 | + var file = new File(arg1, "dummy"); |
| 20 | + assert_true(file instanceof File); |
| 21 | + assert_equals(file.name, "dummy"); |
| 22 | + assert_equals(file.size, expectedSize); |
| 23 | + assert_equals(file.type, ""); |
| 24 | + // assert_false(file.isClosed); XXX: File.isClosed doesn't seem to be implemented |
| 25 | + assert_not_equals(file.lastModified, ""); |
| 26 | + }, testName); |
| 27 | +} |
| 28 | + |
| 29 | +test_first_argument([], 0, "empty fileBits"); |
| 30 | +test_first_argument(["bits"], 4, "DOMString fileBits"); |
| 31 | +test_first_argument(["𝓽𝓮𝔁𝓽"], 16, "Unicode DOMString fileBits"); |
| 32 | +test_first_argument([new String('string object')], 13, "String object fileBits"); |
| 33 | +test_first_argument([new Blob()], 0, "Empty Blob fileBits"); |
| 34 | +test_first_argument([new Blob(["bits"])], 4, "Blob fileBits"); |
| 35 | +test_first_argument([new File([], 'world.txt')], 0, "Empty File fileBits"); |
| 36 | +test_first_argument([new File(["bits"], 'world.txt')], 4, "File fileBits"); |
| 37 | +test_first_argument([new ArrayBuffer(8)], 8, "ArrayBuffer fileBits"); |
| 38 | +test_first_argument([new Uint8Array([0x50, 0x41, 0x53, 0x53])], 4, "Typed array fileBits"); |
| 39 | +test_first_argument(["bits", new Blob(["bits"]), new Blob(), new Uint8Array([0x50, 0x41]), |
| 40 | + new Uint16Array([0x5353]), new Uint32Array([0x53534150])], 16, "Various fileBits"); |
| 41 | +test_first_argument([12], 2, "Number in fileBits"); |
| 42 | +test_first_argument([[1,2,3]], 5, "Array in fileBits"); |
| 43 | +test_first_argument([{}], 15, "Object in fileBits"); // "[object Object]" |
| 44 | +if (globalThis.document !== undefined) { |
| 45 | + test_first_argument([document.body], 24, "HTMLBodyElement in fileBits"); // "[object HTMLBodyElement]" |
| 46 | +} |
| 47 | +test_first_argument([to_string_obj], 8, "Object with toString in fileBits"); |
| 48 | +test_first_argument({[Symbol.iterator]() { |
| 49 | + let i = 0; |
| 50 | + return {next: () => [ |
| 51 | + {done:false, value:'ab'}, |
| 52 | + {done:false, value:'cde'}, |
| 53 | + {done:true} |
| 54 | + ][i++]}; |
| 55 | +}}, 5, 'Custom @@iterator'); |
| 56 | + |
| 57 | +[ |
| 58 | + 'hello', |
| 59 | + 0, |
| 60 | + null |
| 61 | +].forEach(arg => { |
| 62 | + test(t => { |
| 63 | + assert_throws_js(TypeError, () => new File(arg, 'world.html'), |
| 64 | + 'Constructor should throw for invalid bits argument'); |
| 65 | + }, `Invalid bits argument: ${JSON.stringify(arg)}`); |
| 66 | +}); |
| 67 | + |
| 68 | +test(t => { |
| 69 | + assert_throws_js(Error, () => new File([to_string_throws], 'name.txt'), |
| 70 | + 'Constructor should propagate exceptions'); |
| 71 | +}, 'Bits argument: object that throws'); |
| 72 | + |
| 73 | + |
| 74 | +function test_second_argument(arg2, expectedFileName, testName) { |
| 75 | + test(function() { |
| 76 | + var file = new File(["bits"], arg2); |
| 77 | + assert_true(file instanceof File); |
| 78 | + assert_equals(file.name, expectedFileName); |
| 79 | + }, testName); |
| 80 | +} |
| 81 | + |
| 82 | +test_second_argument("dummy", "dummy", "Using fileName"); |
| 83 | +test_second_argument("dummy/foo", "dummy/foo", |
| 84 | + "No replacement when using special character in fileName"); |
| 85 | +test_second_argument(null, "null", "Using null fileName"); |
| 86 | +test_second_argument(1, "1", "Using number fileName"); |
| 87 | +test_second_argument('', '', "Using empty string fileName"); |
| 88 | +if (globalThis.document !== undefined) { |
| 89 | + test_second_argument(document.body, '[object HTMLBodyElement]', "Using object fileName"); |
| 90 | +} |
| 91 | + |
| 92 | +// testing the third argument |
| 93 | +[ |
| 94 | + {type: 'text/plain', expected: 'text/plain'}, |
| 95 | + {type: 'text/plain;charset=UTF-8', expected: 'text/plain;charset=utf-8'}, |
| 96 | + {type: 'TEXT/PLAIN', expected: 'text/plain'}, |
| 97 | + {type: '𝓽𝓮𝔁𝓽/𝔭𝔩𝔞𝔦𝔫', expected: ''}, |
| 98 | + {type: 'ascii/nonprintable\u001F', expected: ''}, |
| 99 | + {type: 'ascii/nonprintable\u007F', expected: ''}, |
| 100 | + {type: 'nonascii\u00EE', expected: ''}, |
| 101 | + {type: 'nonascii\u1234', expected: ''}, |
| 102 | + {type: 'nonparsable', expected: 'nonparsable'} |
| 103 | +].forEach(testCase => { |
| 104 | + test(t => { |
| 105 | + var file = new File(["bits"], "dummy", { type: testCase.type}); |
| 106 | + assert_true(file instanceof File); |
| 107 | + assert_equals(file.type, testCase.expected); |
| 108 | + }, `Using type in File constructor: ${testCase.type}`); |
| 109 | +}); |
| 110 | +test(function() { |
| 111 | + var file = new File(["bits"], "dummy", { lastModified: 42 }); |
| 112 | + assert_true(file instanceof File); |
| 113 | + assert_equals(file.lastModified, 42); |
| 114 | +}, "Using lastModified"); |
| 115 | +test(function() { |
| 116 | + var file = new File(["bits"], "dummy", { name: "foo" }); |
| 117 | + assert_true(file instanceof File); |
| 118 | + assert_equals(file.name, "dummy"); |
| 119 | +}, "Misusing name"); |
| 120 | +test(function() { |
| 121 | + var file = new File(["bits"], "dummy", { unknownKey: "value" }); |
| 122 | + assert_true(file instanceof File); |
| 123 | + assert_equals(file.name, "dummy"); |
| 124 | +}, "Unknown properties are ignored"); |
| 125 | + |
| 126 | +[ |
| 127 | + 123, |
| 128 | + 123.4, |
| 129 | + true, |
| 130 | + 'abc' |
| 131 | +].forEach(arg => { |
| 132 | + test(t => { |
| 133 | + assert_throws_js(TypeError, () => new File(['bits'], 'name.txt', arg), |
| 134 | + 'Constructor should throw for invalid property bag type'); |
| 135 | + }, `Invalid property bag: ${JSON.stringify(arg)}`); |
| 136 | +}); |
| 137 | + |
| 138 | +[ |
| 139 | + null, |
| 140 | + undefined, |
| 141 | + [1,2,3], |
| 142 | + /regex/, |
| 143 | + function() {} |
| 144 | +].forEach(arg => { |
| 145 | + test(t => { |
| 146 | + assert_equals(new File(['bits'], 'name.txt', arg).size, 4, |
| 147 | + 'Constructor should accept object-ish property bag type'); |
| 148 | + }, `Unusual but valid property bag: ${arg}`); |
| 149 | +}); |
| 150 | + |
| 151 | +test(t => { |
| 152 | + assert_throws_js(Error, |
| 153 | + () => new File(['bits'], 'name.txt', {type: to_string_throws}), |
| 154 | + 'Constructor should propagate exceptions'); |
| 155 | +}, 'Property bag propagates exceptions'); |
0 commit comments