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30 lines
907 B
JavaScript
30 lines
907 B
JavaScript
describe('Helpers', () => {
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describe('ArrayBuffer->String conversion', () => {
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it('works', () => {
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const b = new ArrayBuffer(3);
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const a = new Uint8Array(b);
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a[0] = 0;
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a[1] = 255;
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a[2] = 128;
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assert.equal(getString(b), '\x00\xff\x80');
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});
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});
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describe('stringToArrayBuffer', () => {
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it('returns ArrayBuffer when passed string', () => {
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const anArrayBuffer = new ArrayBuffer(1);
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const typedArray = new Uint8Array(anArrayBuffer);
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typedArray[0] = 'a'.charCodeAt(0);
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assertEqualArrayBuffers(stringToArrayBuffer('a'), anArrayBuffer);
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});
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it('throws an error when passed a non string', () => {
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const notStringable = [{}, undefined, null, new ArrayBuffer()];
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notStringable.forEach(notString => {
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assert.throw(() => {
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stringToArrayBuffer(notString);
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}, Error);
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});
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});
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});
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});
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