rochars /
wavefile
| Conditions | 1 |
| Paths | 1 |
| Total Lines | 138 |
| Lines | 138 |
| Ratio | 100 % |
| Changes | 1 | ||
| Bugs | 0 | Features | 0 |
Small methods make your code easier to understand, in particular if combined with a good name. Besides, if your method is small, finding a good name is usually much easier.
For example, if you find yourself adding comments to a method's body, this is usually a good sign to extract the commented part to a new method, and use the comment as a starting point when coming up with a good name for this new method.
Commonly applied refactorings include:
If many parameters/temporary variables are present:
| 1 | /*! |
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| 12 | describe('create 32-bit PCM wave files from scratch', function() { |
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| 13 | |||
| 14 | let wavefile = require('../../index.js'); |
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| 15 | let wav = new wavefile.WaveFile(); |
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| 16 | wav.fromScratch(1, 44100, '32', [0, -2147483648, 2147483647, 4]); |
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| 17 | |||
| 18 | let fs = require('fs'); |
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| 19 | fs.writeFileSync("./test/files/out/32-bitPCM-441kHz-mono-fromScratch.wav", wav.toBytes()); |
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| 20 | |||
| 21 | it('chunkId should be "RIFF"', function() { |
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| 22 | assert.equal(wav.chunkId, "RIFF"); |
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| 23 | }); |
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| 24 | |||
| 25 | it('format should be "WAVE"', function() { |
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| 26 | assert.equal(wav.format, "WAVE"); |
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| 27 | }); |
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| 28 | |||
| 29 | it('subChunk1Id should be "fmt "', function() { |
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| 30 | assert.equal(wav.subChunk1Id, "fmt "); |
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| 31 | }); |
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| 32 | |||
| 33 | it('subChunk1Size should be 16', function() { |
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| 34 | assert.equal(wav.subChunk1Size, 16); |
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| 35 | }); |
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| 36 | |||
| 37 | it('audioFormat should be 1', function() { |
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| 38 | assert.equal(wav.audioFormat, 1); |
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| 39 | }); |
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| 40 | |||
| 41 | it('numChannels should be 1', function() { |
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| 42 | assert.equal(wav.numChannels, 1); |
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| 43 | }); |
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| 44 | |||
| 45 | it('sampleRate should be 44100', function() { |
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| 46 | assert.equal(wav.sampleRate, 44100); |
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| 47 | }); |
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| 48 | |||
| 49 | it('byteRate should be 176400', function() { |
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| 50 | assert.equal(wav.byteRate, 176400); |
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| 51 | }); |
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| 52 | |||
| 53 | it('blockAlign should be 4', function() { |
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| 54 | assert.equal(wav.blockAlign, 4); |
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| 55 | }); |
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| 56 | |||
| 57 | it('bitsPerSample should be 32', function() { |
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| 58 | assert.equal(wav.bitsPerSample, 32); |
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| 59 | }); |
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| 60 | |||
| 61 | it('subChunk2Id should be "data"', function() { |
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| 62 | assert.equal(wav.subChunk2Id, "data"); |
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| 63 | }); |
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| 64 | |||
| 65 | it('subChunk2Size should be 16', function() { |
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| 66 | assert.equal(wav.subChunk2Size, 16); |
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| 67 | }); |
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| 68 | |||
| 69 | it('samples_ should be the same as the args', function() { |
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| 70 | assert.deepEqual(wav.samples_, [0, -2147483648, 2147483647, 4]); |
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| 71 | }); |
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| 72 | |||
| 73 | it('bitDepth_ should be "24"', function() { |
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| 74 | assert.equal(wav.bitDepth_, "32"); |
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| 75 | }); |
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| 76 | |||
| 77 | /* |
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| 78 | it('should return a 32-bit PCM wave file', function() { |
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| 79 | let wav = rw64.writeWavBytes(1, 44100, '32', |
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| 80 | [0, -2147483648, 2147483647, 4]); |
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| 81 | let wavRead = rw64.readWavBytes(wav); |
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| 82 | |||
| 83 | assert.equal(wavRead.audioFormat, 1); |
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| 84 | assert.equal(wavRead.numChannels, 1); |
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| 85 | assert.equal(wavRead.sampleRate, 44100); |
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| 86 | assert.equal(wavRead.bitsPerSample, 32); |
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| 87 | assert.equal(wavRead.blockAlign, 4); |
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| 88 | assert.deepEqual(wavRead.samples, [0, -2147483648, 2147483647, 4]); |
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| 89 | }); |
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| 90 | |||
| 91 | it('should return a 32-bit PCM wave file with a odd number of samples', |
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| 92 | function() { |
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| 93 | let wav = rw64.writeWavBytes(1, 44100, '32', |
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| 94 | [0, -2147483648, 45, 0, 1]); |
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| 95 | let wavRead = rw64.readWavBytes(wav); |
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| 96 | |||
| 97 | assert.equal(wavRead.audioFormat, 1); |
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| 98 | assert.equal(wavRead.numChannels, 1); |
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| 99 | assert.equal(wavRead.sampleRate, 44100); |
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| 100 | assert.equal(wavRead.bitsPerSample, 32); |
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| 101 | assert.equal(wavRead.blockAlign, 4); |
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| 102 | assert.deepEqual(wavRead.samples, [0, -2147483648, 45, 0, 1]); |
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| 103 | }); |
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| 104 | |||
| 105 | it('should return a 32-bit PCM wave file with 7 channels', function() { |
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| 106 | let wav = rw64.writeWavBytes(7, 48000, '32', |
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| 107 | [0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1]); |
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| 108 | let read = rw64.readWavBytes(wav); |
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| 109 | |||
| 110 | assert.equal(read.subChunk1Size, 16); |
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| 111 | assert.equal(read.audioFormat, 1); |
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| 112 | assert.equal(read.numChannels, 7); |
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| 113 | assert.equal(read.sampleRate, 48000); |
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| 114 | assert.equal(read.blockAlign, 28); |
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| 115 | assert.equal(read.bitsPerSample, 32); |
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| 116 | }); |
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| 117 | |||
| 118 | it('should write a 32-bit PCM stereo wav file', function() { |
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| 119 | let channels = [ |
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| 120 | [0,1,2], |
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| 121 | [0,1,2] |
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| 122 | ]; |
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| 123 | let samples = rw64.interleave(channels); |
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| 124 | let wav = rw64.writeWavBytes(2, 44100, '32', samples); |
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| 125 | let read = rw64.readWavBytes(wav); |
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| 126 | |||
| 127 | assert.equal(read.subChunk1Size, 16); |
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| 128 | assert.equal(read.audioFormat, 1); |
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| 129 | assert.equal(read.numChannels, 2); |
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| 130 | assert.equal(read.sampleRate, 44100); |
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| 131 | assert.equal(read.blockAlign, 8); |
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| 132 | assert.equal(read.bitsPerSample, 32); |
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| 133 | }); |
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| 134 | |||
| 135 | it('should return a 32-bit PCM file with max possible sample value', |
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| 136 | function() { |
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| 137 | let wav = rw64.writeWavBytes(1, 16000, '32', |
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| 138 | [-2147483648, 2147483647, -1, 1, 0]); |
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| 139 | let wavRead = rw64.readWavBytes(wav); |
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| 140 | assert.equal(wavRead.audioFormat, 1); |
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| 141 | assert.equal(wavRead.numChannels, 1); |
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| 142 | assert.equal(wavRead.sampleRate, 16000); |
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| 143 | assert.equal(wavRead.blockAlign, 4); |
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| 144 | assert.equal(wavRead.bitsPerSample, 32); |
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| 145 | assert.deepEqual(wavRead.samples, |
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| 146 | [-2147483648, 2147483647, -1, 1, 0]); |
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| 147 | }); |
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| 148 | */ |
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| 149 | }); |
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| 150 |
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