79 lines
2.0 KiB
JavaScript
79 lines
2.0 KiB
JavaScript
/**
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* @fileoverview Test data for float encoding and decoding.
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*/
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goog.module('protobuf.binary.floatTestPairs');
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const BufferDecoder = goog.require('protobuf.binary.BufferDecoder');
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const {createBufferDecoder} = goog.require('protobuf.binary.bufferDecoderHelper');
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/**
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* An array of Pairs of float values and their bit representation.
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* This is used to test encoding and decoding from/to the protobuf wire format.
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* @return {!Array<{name: string, floatValue:number, bufferDecoder:
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* !BufferDecoder}>}
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*/
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function getFloatPairs() {
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const floatPairs = [
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{
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name: 'zero',
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floatValue: 0,
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bufferDecoder: createBufferDecoder(0x00, 0x00, 0x00, 0x00),
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},
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{
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name: 'minus zero',
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floatValue: -0,
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bufferDecoder: createBufferDecoder(0x00, 0x00, 0x00, 0x80)
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},
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{
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name: 'one ',
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floatValue: 1,
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bufferDecoder: createBufferDecoder(0x00, 0x00, 0x80, 0x3F)
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},
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{
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name: 'minus one',
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floatValue: -1,
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bufferDecoder: createBufferDecoder(0x00, 0x00, 0x80, 0xBF)
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},
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{
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name: 'two',
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floatValue: 2,
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bufferDecoder: createBufferDecoder(0x00, 0x00, 0x00, 0x40)
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},
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{
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name: 'max float32',
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floatValue: Math.pow(2, 127) * (2 - 1 / Math.pow(2, 23)),
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bufferDecoder: createBufferDecoder(0xFF, 0xFF, 0x7F, 0x7F)
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},
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{
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name: 'min float32',
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floatValue: 1 / Math.pow(2, 127 - 1),
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bufferDecoder: createBufferDecoder(0x00, 0x00, 0x80, 0x00)
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},
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{
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name: 'Infinity',
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floatValue: Infinity,
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bufferDecoder: createBufferDecoder(0x00, 0x00, 0x80, 0x7F)
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},
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{
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name: 'minus Infinity',
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floatValue: -Infinity,
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bufferDecoder: createBufferDecoder(0x00, 0x00, 0x80, 0xFF)
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},
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{
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name: '1.5',
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floatValue: 1.5,
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bufferDecoder: createBufferDecoder(0x00, 0x00, 0xC0, 0x3F)
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},
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{
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name: '1.6',
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floatValue: 1.6,
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bufferDecoder: createBufferDecoder(0xCD, 0xCC, 0xCC, 0x3F)
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},
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];
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return [...floatPairs];
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}
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exports = {getFloatPairs};
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