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1
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2
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var assert = require('assert'); |
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3
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4
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describe('64-bit from bytes', function() { |
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5
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6
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let byteData = require('../../index.js'); |
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7
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8
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it('should turn 8 bytes to 1 64-bit float', function() { |
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9
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assert.equal(byteData.fromBytes( |
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10
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[75,40,253,58,221,154,191,63], 64)[0], |
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11
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0.123456789876543); |
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12
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}); |
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13
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it('should turn 7 bytes to 0 64-bit float (not enough bytes)', function() { |
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14
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assert.deepEqual(byteData.fromBytes([75,40,253,58,221,154,191], 64), |
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15
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[]); |
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16
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}); |
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17
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it('should turn 8 bytes to 1 64-bit float (Uint8Array)', function() { |
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18
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assert.equal(byteData.fromBytes( |
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19
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new Uint8Array([75,40,253,58,221,154,191,63]), 64)[0], |
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20
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0.123456789876543); |
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21
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}); |
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22
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it('should turn 8 bytes to 1 64-bit float (Buffer)', function() { |
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23
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assert.equal(byteData.fromBytes( |
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24
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new Buffer.from([75,40,253,58,221,154,191,63]), 64)[0], |
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25
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0.123456789876543); |
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26
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}); |
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27
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it('should turn 9 bytes to 1 64-bit float (ignore the extra byte) (Buffer)', function() { |
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28
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assert.equal(byteData.fromBytes( |
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29
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new Buffer.from([75,40,253,58,221,154,191,63,00]), 64)[0], |
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30
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0.123456789876543); |
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31
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}); |
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32
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it('should turn 8 bytes to 1 64-bit float', function() { |
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33
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assert.equal(byteData.fromBytes( |
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34
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[0,0,0,0,0,0,0,0], 64)[0].toFixed(15), |
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35
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0); |
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36
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}); |
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37
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it('should turn 16 bytes to 2 64-bit floats', function() { |
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38
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assert.equal(byteData.fromBytes( |
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39
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[0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0], 64)[0].toFixed(15), |
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40
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0); |
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41
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assert.equal(byteData.fromBytes( |
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42
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[0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0], 64)[1].toFixed(15), |
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43
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0); |
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44
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}); |
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45
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it('should turn 8 bytes bin to 1 64-bit float', function() { |
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46
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assert.equal(byteData.fromBytes( |
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47
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[ |
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48
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"00000000", |
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49
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"00000000", |
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50
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"00000000", |
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51
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"00000000", |
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52
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"00000000", |
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53
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"00000000", |
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54
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"00000000", |
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55
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"00000000" |
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56
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], 64, {"base": 2})[0].toFixed(15), |
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57
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0); |
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58
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}); |
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59
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it('should turn 8 bytes bin to 1 64-bit float', function() { |
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60
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assert.equal(byteData.fromBytes( |
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61
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[ |
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62
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"01001011", |
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63
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"00101000", |
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64
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"11111101", |
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65
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"00111010", |
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66
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"11011101", |
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67
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"10011010", |
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68
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"10111111", |
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69
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"00111111" |
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70
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], 64, {"base": 2})[0].toFixed(15), |
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71
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0.123456789876543); |
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72
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}); |
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73
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it('should turn 8 bytes to 1 64-bit float (31.41592653589793)', function() { |
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74
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assert.deepEqual(byteData.fromBytes([94,56,85,41,122,106,63,64], 64), |
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75
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[31.41592653589793]); |
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76
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}); |
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77
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it('should turn 8 bytes to 1 64-bit float (314159265358979.3)', function() { |
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78
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assert.deepEqual(byteData.fromBytes([53,72,162,118,158,219,241,66], 64, {"base": 10}), |
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79
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[314159265358979.3]); |
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80
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}); |
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81
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it('should turn 8 bytes hex to 1 64-bit float (2)', function() { |
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82
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assert.deepEqual( |
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83
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byteData.fromBytes( |
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84
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["00","00","00","00","00","00","00","40"], 64, {"base": 16}), |
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85
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[2]); |
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86
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}); |
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87
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}); |
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88
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rochars /
byte-data
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This checks looks for references to variables that have not been declared. This is most likey a typographical error or a variable has been renamed.
To learn more about declaring variables in Javascript, see the MDN.