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1
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package money |
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2
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3
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import ( |
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4
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"reflect" |
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5
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"testing" |
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6
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) |
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7
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8
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func TestMoney_New(t *testing.T) { |
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9
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m := New(1, EUR()) |
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10
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11
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if m.Amount().Value() != 1 { |
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12
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t.Errorf("Expected %d got %d", 1, m.Amount().Value()) |
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13
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} |
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14
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15
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if m.Currency().code != "EUR" { |
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16
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t.Errorf("Expected currency %s got %s", "EUR", m.Currency().code) |
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} |
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18
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19
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m = New(-1, USD()) |
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20
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21
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if m.Amount().Value() != -1 { |
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22
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t.Errorf("Expected %d got %d", 1, m.Amount().Value()) |
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} |
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24
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} |
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26
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func TestMoney_Amount(t *testing.T) { |
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m := New(100, USD()) |
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28
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29
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if m.Amount().Value() != 100 { |
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30
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t.Errorf("Expected %d got %d", 1, m.Amount()) |
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31
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} |
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32
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33
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m = New(-100, USD()) |
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34
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35
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if m.Amount().Value() != -100 { |
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36
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t.Errorf("Expected %d got %d", 1, m.Amount()) |
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} |
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38
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} |
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40
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func TestMoney_Currency(t *testing.T) { |
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41
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m := New(1, EUR()) |
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42
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43
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if m.Currency().code != "EUR" { |
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44
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t.Errorf("Expected currency %s got %s", "EUR", m.Currency().code) |
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45
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} |
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46
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} |
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47
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48
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func TestMoney_Equals(t *testing.T) { |
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49
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m := New(0, EUR()) |
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50
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tcs := []struct { |
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51
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amount int64 |
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52
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expected bool |
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53
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}{ |
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54
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{-1, false}, |
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55
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{0, true}, |
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56
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{1, false}, |
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57
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} |
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58
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59
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for _, tc := range tcs { |
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60
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om := New(tc.amount, EUR()) |
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61
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r, err := m.Equals(om) |
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62
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63
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if err != nil || r != tc.expected { |
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64
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t.Errorf("Expected %d Equals %d == %t got %t", m.Amount().Value(), |
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65
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om.Amount().Value(), tc.expected, r) |
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66
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} |
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67
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} |
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68
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} |
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69
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70
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func TestMoney_GreaterThan(t *testing.T) { |
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71
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m := New(10, EUR()) |
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72
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tcs := []struct { |
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73
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money *Money |
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74
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expected bool |
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75
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}{ |
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76
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{New(0, EUR()), true}, |
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77
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{New(100, EUR()), false}, |
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78
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} |
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79
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80
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for _, tc := range tcs { |
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81
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r, _ := m.GreaterThan(tc.money) |
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82
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83
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if r != tc.expected { |
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84
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t.Errorf("Expected %d to be greater than %d, expect %t got %t", m.Amount().Value(), |
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85
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tc.money.Amount().Value(), tc.expected, r) |
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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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} |
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89
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90
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func TestMoney_GreaterThanOrEqual(t *testing.T) { |
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91
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m := New(10, EUR()) |
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92
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tcs := []struct { |
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93
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money *Money |
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94
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expected bool |
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95
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}{ |
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96
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{New(0, EUR()), true}, |
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97
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{New(10, EUR()), true}, |
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98
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{New(100, EUR()), false}, |
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99
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} |
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100
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101
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for _, tc := range tcs { |
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102
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r, _ := m.GreaterThanOrEqual(tc.money) |
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103
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104
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if r != tc.expected { |
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105
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t.Errorf("Expected %d to be greater than or equal %d, expect %t got %t", m.Amount().Value(), |
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106
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tc.money.Amount().Value(), tc.expected, r) |
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107
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} |
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108
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} |
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109
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} |
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110
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111
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func TestMoney_LessThan(t *testing.T) { |
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112
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m := New(10, EUR()) |
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113
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tcs := []struct { |
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114
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money *Money |
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115
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expected bool |
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116
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}{ |
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117
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{New(0, EUR()), false}, |
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118
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{New(100, EUR()), true}, |
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119
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} |
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120
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121
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for _, tc := range tcs { |
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122
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r, _ := m.LessThan(tc.money) |
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123
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124
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if r != tc.expected { |
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125
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t.Errorf("Expected %d to be less than %d, expect %t got %t", m.Amount().Value(), |
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126
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tc.money.Amount().Value(), tc.expected, r) |
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127
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} |
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128
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} |
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129
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} |
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130
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131
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func TestMoney_LessThanOrEqual(t *testing.T) { |
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132
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m := New(10, EUR()) |
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133
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tcs := []struct { |
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134
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money *Money |
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135
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expected bool |
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136
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}{ |
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137
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{New(0, EUR()), false}, |
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138
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{New(10, EUR()), true}, |
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139
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{New(100, EUR()), true}, |
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140
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} |
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141
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142
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for _, tc := range tcs { |
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143
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r, _ := m.LessThanOrEqual(tc.money) |
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144
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145
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if r != tc.expected { |
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146
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t.Errorf("Expected %d to be less than or equal %d, expect %t got %t", m.Amount().Value(), |
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147
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tc.money.Amount().Value(), tc.expected, r) |
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148
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} |
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149
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} |
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150
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} |
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151
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152
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func TestMoney_Add(t *testing.T) { |
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153
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tcs := []struct { |
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154
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amount1 int64 |
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155
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amount2 int64 |
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156
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expected int64 |
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157
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}{ |
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158
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{5, 5, 10}, |
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159
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{10, 5, 15}, |
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160
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{1, -1, 0}, |
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161
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} |
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162
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163
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for _, tc := range tcs { |
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164
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m := New(tc.amount1, EUR()) |
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165
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om := New(tc.amount2, EUR()) |
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166
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r, err := m.Add(om) |
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167
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168
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if err != nil { |
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169
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t.Error(err) |
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170
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} |
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171
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172
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if r.Amount().Value() != tc.expected { |
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173
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t.Errorf("Expected %d + %d = %d got %d", tc.amount1, tc.amount2, |
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174
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tc.expected, r.Amount().Value()) |
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175
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} |
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176
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} |
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177
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178
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} |
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179
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180
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func TestMoney_Add2(t *testing.T) { |
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181
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m := New(100, EUR()) |
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182
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dm := New(100, USD()) |
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183
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r, err := m.Add(dm) |
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184
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185
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if r != nil || err == nil { |
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186
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t.Error("Expected err") |
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187
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} |
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188
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} |
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189
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190
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func TestMoney_Subtract(t *testing.T) { |
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191
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tcs := []struct { |
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192
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amount1 int64 |
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193
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amount2 int64 |
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194
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expected int64 |
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195
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}{ |
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196
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{5, 5, 0}, |
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197
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{10, 5, 5}, |
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198
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{1, -1, 2}, |
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199
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} |
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200
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201
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for _, tc := range tcs { |
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202
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m := New(tc.amount1, EUR()) |
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203
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om := New(tc.amount2, EUR()) |
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204
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r, err := m.Subtract(om) |
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205
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206
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if err != nil { |
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207
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t.Error(err) |
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208
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} |
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209
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210
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if r.Amount().Value() != tc.expected { |
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211
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t.Errorf("Expected %d - %d = %d got %d", tc.amount1, tc.amount2, |
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212
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tc.expected, r.Amount().Value()) |
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213
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} |
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214
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} |
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215
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} |
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216
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217
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func TestMoney_Subtract2(t *testing.T) { |
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218
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m := New(100, EUR()) |
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219
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dm := New(100, USD()) |
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220
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r, err := m.Subtract(dm) |
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221
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222
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if r != nil || err == nil { |
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223
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t.Error("Expected err") |
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224
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} |
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225
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} |
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226
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227
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func TestMoney_Multiply(t *testing.T) { |
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228
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tcs := []struct { |
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229
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amount int64 |
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230
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multiplier int64 |
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231
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expected int64 |
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232
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}{ |
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233
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{5, 5, 25}, |
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234
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{10, 5, 50}, |
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235
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{1, -1, -1}, |
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236
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{1, 0, 0}, |
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237
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} |
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238
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239
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for _, tc := range tcs { |
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240
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m := New(tc.amount, EUR()) |
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241
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r := m.Multiply(tc.multiplier).Amount().Value() |
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242
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243
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if r != tc.expected { |
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244
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t.Errorf("Expected %d * %d = %d got %d", tc.amount, tc.multiplier, tc.expected, r) |
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245
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} |
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246
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} |
|
247
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} |
|
248
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249
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func TestMoney_Allocate(t *testing.T) { |
|
250
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tcs := []struct { |
|
251
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amount int64 |
|
252
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ratios []int |
|
253
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expected []int64 |
|
254
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}{ |
|
255
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{100, []int{50, 50}, []int64{50, 50}}, |
|
256
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{100, []int{30, 30, 30}, []int64{34, 33, 33}}, |
|
257
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{200, []int{1, 1, 1}, []int64{67, 67, 66}}, |
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258
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{5, []int{3, 7}, []int64{2, 3}}, |
|
259
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} |
|
260
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|
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|
261
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for _, tc := range tcs { |
|
262
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m := New(tc.amount, EUR()) |
|
263
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var rs []int64 |
|
264
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split, _ := m.Allocate(tc.ratios...) |
|
265
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|
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|
266
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for _, party := range split { |
|
267
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rs = append(rs, party.Amount().Value()) |
|
268
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} |
|
269
|
|
|
|
|
270
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|
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if !reflect.DeepEqual(tc.expected, rs) { |
|
271
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t.Errorf("Expected allocation of %d for ratios %v to be %v got %v", tc.amount, tc.ratios, |
|
272
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|
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tc.expected, rs) |
|
273
|
|
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} |
|
274
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|
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} |
|
275
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|
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} |
|
276
|
|
|
|
|
277
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|
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func TestMoney_Allocate2(t *testing.T) { |
|
278
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|
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m := New(100, EUR()) |
|
279
|
|
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r, err := m.Allocate() |
|
280
|
|
|
|
|
281
|
|
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if r != nil || err == nil { |
|
282
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|
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t.Error("Expected err") |
|
283
|
|
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} |
|
284
|
|
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} |
|
285
|
|
|
|
|
286
|
|
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func TestMoney_Comparison(t *testing.T) { |
|
287
|
|
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dollar := New(100, USD()) |
|
288
|
|
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twoDollar := New(200, USD()) |
|
289
|
|
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twoEuro := New(200, EUR()) |
|
290
|
|
|
|
|
291
|
|
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if r, err := dollar.GreaterThan(twoDollar); err != nil || r { |
|
292
|
|
|
t.Errorf("Expected %d Greater Than %d == %t got %t", dollar.Amount().Value(), |
|
293
|
|
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twoDollar.Amount().Value(), false, r) |
|
294
|
|
|
} |
|
295
|
|
|
|
|
296
|
|
|
if r, err := dollar.LessThan(twoDollar); err != nil || !r { |
|
297
|
|
|
t.Errorf("Expected %d Less Than %d == %t got %t", dollar.Amount().Value(), |
|
298
|
|
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twoDollar.Amount().Value(), true, r) |
|
299
|
|
|
} |
|
300
|
|
|
|
|
301
|
|
|
if r, err := dollar.LessThan(twoEuro); err == nil || r { |
|
302
|
|
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t.Error("Expected err") |
|
303
|
|
|
} |
|
304
|
|
|
|
|
305
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|
|
if r, err := dollar.GreaterThan(twoEuro); err == nil || r { |
|
306
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|
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t.Error("Expected err") |
|
307
|
|
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} |
|
308
|
|
|
|
|
309
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|
|
if r, err := dollar.Equals(twoEuro); err == nil || r { |
|
310
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|
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t.Error("Expected err") |
|
311
|
|
|
} |
|
312
|
|
|
|
|
313
|
|
|
if r, err := dollar.LessThanOrEqual(twoEuro); err == nil || r { |
|
314
|
|
|
t.Error("Expected err") |
|
315
|
|
|
} |
|
316
|
|
|
|
|
317
|
|
|
if r, err := dollar.GreaterThanOrEqual(twoEuro); err == nil || r { |
|
318
|
|
|
t.Error("Expected err") |
|
319
|
|
|
} |
|
320
|
|
|
} |
|
321
|
|
|
|
|
322
|
|
|
func TestMoney_Display(t *testing.T) { |
|
323
|
|
|
euro := New(100, EUR()) |
|
324
|
|
|
if r := euro.Display(); r != "€1,00" { |
|
325
|
|
|
t.Errorf("Expected money display to be %s got %s", "€1,00", r) |
|
326
|
|
|
} |
|
327
|
|
|
|
|
328
|
|
|
dollar := New(-200000, USD()) |
|
329
|
|
|
if r := dollar.Display(); r != "-$2,000.00" { |
|
330
|
|
|
t.Errorf("Expected money display to be %s got %s", "-$2,000.00", r) |
|
331
|
|
|
} |
|
332
|
|
|
|
|
333
|
|
|
cent := New(1, EUR()) |
|
334
|
|
|
if r := cent.Display(); r != "€0,01" { |
|
335
|
|
|
t.Errorf("Expected money display to be %s got %s", "€0,01", r) |
|
336
|
|
|
} |
|
337
|
|
|
} |
|
338
|
|
|
|