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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('32-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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// 32 |
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9
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it('should turn 4 bytes bin to 1 32-bit float', function() { |
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10
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assert.deepEqual(byteData.fromBytes( |
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11
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["01011111","01110000","00001001","01000000"], 32, {"base": 2, "float": true})[0].toFixed(7), |
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12
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2.1474836); |
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13
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}); |
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14
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15
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it('should turn 4 bytes hex to 1 32-bit float', function() { |
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16
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assert.deepEqual(byteData.fromBytes( |
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17
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["5f","70","9","40"], 32, {"base": 16, "float": true})[0].toFixed(7), |
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18
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2.1474836); |
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19
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}); |
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20
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it('should turn 3 bytes hex to 0 32-bit float (not enough bytes)', function() { |
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21
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assert.deepEqual(byteData.fromBytes( |
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22
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["5f","70","9"], 32, {"base": 16, "float": true}), |
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23
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[]); |
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24
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}); |
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25
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it('should turn 1 32-bit float to 4 bytes', function() { |
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26
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assert.deepEqual( |
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27
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byteData.fromBytes([95,112,9,64], 32, {"float": true})[0].toFixed(7), |
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28
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2.1474836); |
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29
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}); |
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30
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it('should turn 8 bytes to 2 32-bit floats', function() { |
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31
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assert.deepEqual(byteData.fromBytes( |
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32
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[0,0,0,0,0,0,0,0], 32, {"float": true}), |
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33
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[0,0]); |
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34
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}); |
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35
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36
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// 32 bit ints |
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37
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it('should turn 8 bytes to 2 32-bit ints (0s)', function() { |
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38
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assert.deepEqual(byteData.fromBytes( |
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39
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[0,0,0,0,0,0,0,0], 32, {"base": 10, "signed": false}), |
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40
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[0,0]); |
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41
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}); |
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42
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43
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it('should turn 8 bytes bin to 2 32-bit ints (max range)', function() { |
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44
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assert.deepEqual(byteData.fromBytes( |
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45
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["00000000","00000000","00000000","10000000", |
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46
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"11111111","11111111","11111111","01111111"], |
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47
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32, {"base": 2, "signed": true}), |
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48
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[-2147483648,2147483647]); |
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49
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}); |
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50
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it('should turn 8 bytes hex to 2 32-bit ints (max range)', function() { |
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51
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assert.deepEqual(byteData.fromBytes( |
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52
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["0","0","0","80", "ff","ff","ff","7f"], |
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53
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32, {"base": 16, "signed": true}), |
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54
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[-2147483648,2147483647]); |
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55
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}); |
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56
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it('should turn 10 bytes hex to 2 32-bit ints (ignore extra bytes) (max range)', function() { |
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57
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assert.deepEqual(byteData.fromBytes( |
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58
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["0","0","0","80", "ff","ff","ff","7f","ff","80"], |
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59
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32, {"base": 16, "signed": true}), |
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60
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[-2147483648,2147483647]); |
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61
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}); |
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62
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it('should turn 4 bytes hex to 1 32-bit ints (random negative)', function() { |
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63
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assert.deepEqual(byteData.fromBytes( |
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64
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["e8","3","0","80"], |
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65
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32, {"base": 16, "signed": true}), |
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66
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[-2147482648]); |
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67
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}); |
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68
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69
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it('should turn 4 bytes hex to 1 32-bit ints (random negative)', function() { |
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70
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assert.deepEqual(byteData.fromBytes( |
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71
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["0","80","ff","ff"], 32, {"base": 16, "signed": true}), |
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72
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[-32768]); |
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73
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}); |
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74
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it('should turn 8 bytes bin to 2 32-bit uInts (max range)', function() { |
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75
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assert.deepEqual(byteData.fromBytes( |
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76
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["00000000","00000000","00000000","00000000", |
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77
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"11111111","11111111","11111111","11111111"], 32, {"base": 2, "signed": false}), |
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78
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[0,4294967295]); |
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79
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}); |
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80
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it('should turn 8 bytes hex to 2 32-bit uInts (max range)', function() { |
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81
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assert.deepEqual(byteData.fromBytes( |
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82
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["0","0","0","00", "ff","ff","ff","ff"], 32, {"base": 16, "signed": false}), |
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83
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[0,4294967295]); |
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84
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}); |
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85
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}); |
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86
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rochars /
byte-data
