| Conditions | 5 |
| Total Lines | 125 |
| Code Lines | 97 |
| Lines | 0 |
| Ratio | 0 % |
| Changes | 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 | package generic |
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| 94 | func TestNewIterable(t *testing.T) { |
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| 95 | tests := []struct { |
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| 96 | name string |
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| 97 | value interface{} |
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| 98 | expectedKey string |
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| 99 | expectedIsIndex bool |
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| 100 | expectedIndex int |
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| 101 | expectedValue interface{} |
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| 102 | }{ |
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| 103 | { |
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| 104 | name: "array of strings", |
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| 105 | value: [...]string{"value"}, |
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| 106 | expectedKey: "0", |
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| 107 | expectedIsIndex: true, |
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| 108 | expectedIndex: 0, |
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| 109 | expectedValue: "value", |
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| 110 | }, |
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| 111 | { |
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| 112 | name: "array of string pointers", |
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| 113 | value: [...]*string{stringPointer("value")}, |
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| 114 | expectedKey: "0", |
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| 115 | expectedIsIndex: true, |
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| 116 | expectedIndex: 0, |
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| 117 | expectedValue: "value", |
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| 118 | }, |
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| 119 | { |
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| 120 | name: "array of string pointers with nil", |
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| 121 | value: [...]*string{nil}, |
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| 122 | expectedKey: "0", |
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| 123 | expectedIsIndex: true, |
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| 124 | expectedIndex: 0, |
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| 125 | expectedValue: nil, |
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| 126 | }, |
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| 127 | { |
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| 128 | name: "slice of strings", |
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| 129 | value: []string{"value"}, |
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| 130 | expectedKey: "0", |
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| 131 | expectedIsIndex: true, |
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| 132 | expectedIndex: 0, |
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| 133 | expectedValue: "value", |
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| 134 | }, |
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| 135 | { |
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| 136 | name: "slice of string pointers", |
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| 137 | value: []*string{stringPointer("value")}, |
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| 138 | expectedKey: "0", |
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| 139 | expectedIsIndex: true, |
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| 140 | expectedIndex: 0, |
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| 141 | expectedValue: "value", |
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| 142 | }, |
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| 143 | { |
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| 144 | name: "slice of string pointers with nil", |
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| 145 | value: []*string{nil}, |
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| 146 | expectedKey: "0", |
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| 147 | expectedIsIndex: true, |
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| 148 | expectedIndex: 0, |
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| 149 | expectedValue: nil, |
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| 150 | }, |
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| 151 | { |
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| 152 | name: "map of strings", |
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| 153 | value: map[string]string{"key": "value"}, |
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| 154 | expectedKey: "key", |
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| 155 | expectedIsIndex: false, |
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| 156 | expectedIndex: -1, |
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| 157 | expectedValue: "value", |
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| 158 | }, |
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| 159 | { |
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| 160 | name: "map of string pointers", |
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| 161 | value: map[string]*string{"key": stringPointer("value")}, |
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| 162 | expectedKey: "key", |
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| 163 | expectedIsIndex: false, |
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| 164 | expectedIndex: -1, |
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| 165 | expectedValue: "value", |
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| 166 | }, |
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| 167 | { |
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| 168 | name: "map of string pointers with nil", |
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| 169 | value: map[string]*string{"key": nil}, |
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| 170 | expectedKey: "key", |
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| 171 | expectedIsIndex: false, |
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| 172 | expectedIndex: -1, |
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| 173 | expectedValue: nil, |
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| 174 | }, |
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| 175 | { |
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| 176 | name: "map of string pointers with pointer key", |
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| 177 | value: map[*string]*string{stringPointer("key"): nil}, |
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| 178 | expectedKey: "key", |
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| 179 | expectedIsIndex: false, |
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| 180 | expectedIndex: -1, |
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| 181 | expectedValue: nil, |
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| 182 | }, |
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| 183 | { |
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| 184 | name: "map of string pointers with nil pointer key", |
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| 185 | value: map[*string]*string{nil: nil}, |
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| 186 | expectedKey: "", |
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| 187 | expectedIsIndex: false, |
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| 188 | expectedIndex: -1, |
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| 189 | expectedValue: nil, |
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| 190 | }, |
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| 191 | { |
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| 192 | name: "map of string pointers with struct key", |
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| 193 | value: map[mapKey]string{{Key: "key"}: "value"}, |
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| 194 | expectedKey: "<generic.mapKey Value>", |
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| 195 | expectedIsIndex: false, |
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| 196 | expectedIndex: -1, |
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| 197 | expectedValue: "value", |
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| 198 | }, |
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| 199 | } |
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| 200 | for _, test := range tests { |
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| 201 | t.Run(test.name, func(t *testing.T) { |
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| 202 | iterable, err := NewIterable(test.value) |
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| 203 | |||
| 204 | if assert.NoError(t, err) { |
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| 205 | assert.Equal(t, 1, iterable.Count()) |
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| 206 | assert.False(t, iterable.IsNil()) |
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| 207 | i := 0 |
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| 208 | err = iterable.Iterate(func(key Key, value interface{}) error { |
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| 209 | assert.Equal(t, test.expectedKey, key.String()) |
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| 210 | assert.Equal(t, test.expectedIsIndex, key.IsIndex()) |
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| 211 | assert.Equal(t, test.expectedIndex, key.Index()) |
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| 212 | assert.Equal(t, test.expectedValue, value) |
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| 213 | i++ |
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| 214 | |||
| 215 | return nil |
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| 216 | }) |
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| 217 | assert.NoError(t, err) |
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| 218 | assert.Equal(t, 1, i) |
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| 219 | } |
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| 223 |