56 lines
1.7 KiB
JavaScript
56 lines
1.7 KiB
JavaScript
'use strict'
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self.test_blob = (fn, expectations) => {
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var expected = expectations.expected,
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type = expectations.type,
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desc = expectations.desc;
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promise_test(async (t) => {
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var blob = fn();
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assert_true(blob instanceof Blob);
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assert_false(blob instanceof File);
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assert_equals(blob.type, type);
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assert_equals(blob.size, expected.length);
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const text = await blob.text();
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assert_equals(text, expected);
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}, desc);
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}
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self.test_blob_binary = (fn, expectations) => {
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var expected = expectations.expected,
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type = expectations.type,
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desc = expectations.desc;
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promise_test(async (t) => {
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var blob = fn();
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assert_true(blob instanceof Blob);
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assert_false(blob instanceof File);
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assert_equals(blob.type, type);
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assert_equals(blob.size, expected.length);
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const ab = await blob.arrayBuffer();
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assert_true(ab instanceof ArrayBuffer,
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"Result should be an ArrayBuffer");
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assert_array_equals(new Uint8Array(ab), expected);
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}, desc);
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}
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// Assert that two TypedArray objects have the same byte values
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self.assert_equals_typed_array = (array1, array2) => {
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const [view1, view2] = [array1, array2].map((array) => {
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assert_true(array.buffer instanceof ArrayBuffer,
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'Expect input ArrayBuffers to contain field `buffer`');
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return new DataView(array.buffer, array.byteOffset, array.byteLength);
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});
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assert_equals(view1.byteLength, view2.byteLength,
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'Expect both arrays to be of the same byte length');
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const byteLength = view1.byteLength;
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for (let i = 0; i < byteLength; ++i) {
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assert_equals(view1.getUint8(i), view2.getUint8(i),
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`Expect byte at buffer position ${i} to be equal`);
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}
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}
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