UNPKG

binary-data

Version:

Declarative binary data encoder / decoder.

github.com/reklatsmasters/binary-data

reklatsmasters/binary-data

1 lines • 5.86 kB
1
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wantRead);\n expect(result).toEqual(Buffer.from([0x1, 0x2]));\n });\n\n test('readBuffer # out of bounds', () => {\n const buf = Buffer.from([0x1, 0x2]);\n const stream = new BinaryStream();\n stream.append(buf);\n const requestedBytes = buf.length + 1;\n\n expect(() => stream.readBuffer(requestedBytes)).toThrow(NotEnoughDataError);\n });\n\n test('default numbers', () => {\n const suites = [\n /* Type, size, test value */\n ['DoubleBE', 8, Number.MAX_SAFE_INTEGER / 2],\n ['DoubleLE', 8, Number.MAX_SAFE_INTEGER / 2],\n\n ['FloatBE', 4, 0.5],\n ['FloatLE', 4, 0.5],\n\n ['Int8', 1, 127],\n ['UInt8', 1, 255],\n\n ['Int16BE', 2, 0x7fff - 1],\n ['Int16LE', 2, 0x7fff - 1],\n\n ['UInt16BE', 2, 0xffff - 1],\n ['UInt16LE', 2, 0xffff - 1],\n\n ['Int32BE', 4, 0x7fffffff - 1],\n ['Int32LE', 4, 0x7fffffff - 1],\n\n ['UInt32BE', 4, 0xffffffff - 1],\n ['UInt32LE', 4, 0xffffffff - 1],\n ];\n\n const buf = Buffer.allocUnsafe(10);\n\n for (const suite of suites) {\n const read = `read${suite[0]}`;\n const write = `write${suite[0]}`;\n\n buf.fill(0);\n buf[write](suite[2], 0);\n const stream = new BinaryStream();\n stream.append(buf);\n\n expect(stream[read]()).toBe(suite[2]);\n expect(stream.length).toBe(buf.length - suite[1]);\n }\n });\n\n describe('custom numbers', () => {\n const suites = [\n /* Type, size, test value */\n ['IntBE', 3, 0x7fffff - 1],\n ['UIntBE', 3, 0xffffff - 1],\n\n ['IntLE', 3, 0x7fffff - 1],\n ['UIntLE', 3, 0xffffff - 1],\n ];\n\n const buf = Buffer.allocUnsafe(5);\n\n for (const suite of suites) {\n const read = `read${suite[0]}`;\n const write = `write${suite[0]}`;\n\n test(read, () => {\n buf.fill(0);\n buf[write](suite[2], 0, suite[1]);\n const stream = new BinaryStream();\n stream.append(buf);\n\n expect(stream[read](suite[1])).toBe(suite[2]);\n expect(stream.length).toBe(buf.length - suite[1]);\n });\n }\n });\n});\n"]}