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package assert |
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import ( |
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260
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"bytes" |
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256
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"fmt" |
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"reflect" |
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"time" |
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) |
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type CompareType int |
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const ( |
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compareLess CompareType = iota - 1 |
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compareEqual |
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compareGreater |
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) |
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var ( |
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intType = reflect.TypeOf(int(1)) |
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int8Type = reflect.TypeOf(int8(1)) |
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int16Type = reflect.TypeOf(int16(1)) |
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int32Type = reflect.TypeOf(int32(1)) |
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int64Type = reflect.TypeOf(int64(1)) |
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uintType = reflect.TypeOf(uint(1)) |
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uint8Type = reflect.TypeOf(uint8(1)) |
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uint16Type = reflect.TypeOf(uint16(1)) |
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uint32Type = reflect.TypeOf(uint32(1)) |
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uint64Type = reflect.TypeOf(uint64(1)) |
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float32Type = reflect.TypeOf(float32(1)) |
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float64Type = reflect.TypeOf(float64(1)) |
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stringType = reflect.TypeOf("") |
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timeType = reflect.TypeOf(time.Time{}) |
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bytesType = reflect.TypeOf([]byte{}) |
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) |
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func compare(obj1, obj2 interface{}, kind reflect.Kind) (CompareType, bool) { |
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obj1Value := reflect.ValueOf(obj1) |
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obj2Value := reflect.ValueOf(obj2) |
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// throughout this switch we try and avoid calling .Convert() if possible, |
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// as this has a pretty big performance impact |
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switch kind { |
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case reflect.Int: |
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{ |
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intobj1, ok := obj1.(int) |
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if !ok { |
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intobj1 = obj1Value.Convert(intType).Interface().(int) |
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} |
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intobj2, ok := obj2.(int) |
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if !ok { |
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intobj2 = obj2Value.Convert(intType).Interface().(int) |
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} |
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if intobj1 > intobj2 { |
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return compareGreater, true |
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} |
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if intobj1 == intobj2 { |
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return compareEqual, true |
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} |
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if intobj1 < intobj2 { |
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return compareLess, true |
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} |
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} |
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case reflect.Int8: |
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{ |
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int8obj1, ok := obj1.(int8) |
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if !ok { |
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int8obj1 = obj1Value.Convert(int8Type).Interface().(int8) |
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} |
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int8obj2, ok := obj2.(int8) |
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if !ok { |
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int8obj2 = obj2Value.Convert(int8Type).Interface().(int8) |
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} |
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if int8obj1 > int8obj2 { |
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return compareGreater, true |
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} |
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if int8obj1 == int8obj2 { |
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return compareEqual, true |
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} |
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if int8obj1 < int8obj2 { |
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return compareLess, true |
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} |
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} |
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case reflect.Int16: |
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{ |
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int16obj1, ok := obj1.(int16) |
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if !ok { |
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int16obj1 = obj1Value.Convert(int16Type).Interface().(int16) |
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} |
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int16obj2, ok := obj2.(int16) |
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if !ok { |
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int16obj2 = obj2Value.Convert(int16Type).Interface().(int16) |
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} |
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if int16obj1 > int16obj2 { |
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return compareGreater, true |
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} |
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if int16obj1 == int16obj2 { |
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return compareEqual, true |
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} |
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if int16obj1 < int16obj2 { |
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return compareLess, true |
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} |
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} |
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case reflect.Int32: |
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{ |
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int32obj1, ok := obj1.(int32) |
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if !ok { |
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int32obj1 = obj1Value.Convert(int32Type).Interface().(int32) |
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} |
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int32obj2, ok := obj2.(int32) |
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if !ok { |
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int32obj2 = obj2Value.Convert(int32Type).Interface().(int32) |
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} |
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if int32obj1 > int32obj2 { |
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return compareGreater, true |
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} |
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if int32obj1 == int32obj2 { |
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return compareEqual, true |
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} |
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if int32obj1 < int32obj2 { |
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return compareLess, true |
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} |
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} |
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case reflect.Int64: |
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{ |
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int64obj1, ok := obj1.(int64) |
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if !ok { |
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int64obj1 = obj1Value.Convert(int64Type).Interface().(int64) |
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} |
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int64obj2, ok := obj2.(int64) |
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if !ok { |
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int64obj2 = obj2Value.Convert(int64Type).Interface().(int64) |
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} |
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if int64obj1 > int64obj2 { |
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return compareGreater, true |
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} |
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if int64obj1 == int64obj2 { |
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return compareEqual, true |
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} |
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if int64obj1 < int64obj2 { |
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return compareLess, true |
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} |
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} |
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case reflect.Uint: |
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{ |
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uintobj1, ok := obj1.(uint) |
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if !ok { |
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uintobj1 = obj1Value.Convert(uintType).Interface().(uint) |
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} |
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uintobj2, ok := obj2.(uint) |
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if !ok { |
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uintobj2 = obj2Value.Convert(uintType).Interface().(uint) |
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} |
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if uintobj1 > uintobj2 { |
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return compareGreater, true |
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} |
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if uintobj1 == uintobj2 { |
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return compareEqual, true |
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} |
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if uintobj1 < uintobj2 { |
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return compareLess, true |
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} |
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} |
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case reflect.Uint8: |
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{ |
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uint8obj1, ok := obj1.(uint8) |
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if !ok { |
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uint8obj1 = obj1Value.Convert(uint8Type).Interface().(uint8) |
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} |
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uint8obj2, ok := obj2.(uint8) |
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if !ok { |
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uint8obj2 = obj2Value.Convert(uint8Type).Interface().(uint8) |
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} |
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if uint8obj1 > uint8obj2 { |
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return compareGreater, true |
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} |
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if uint8obj1 == uint8obj2 { |
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return compareEqual, true |
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} |
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if uint8obj1 < uint8obj2 { |
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return compareLess, true |
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} |
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} |
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case reflect.Uint16: |
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{ |
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uint16obj1, ok := obj1.(uint16) |
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if !ok { |
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uint16obj1 = obj1Value.Convert(uint16Type).Interface().(uint16) |
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} |
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uint16obj2, ok := obj2.(uint16) |
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if !ok { |
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uint16obj2 = obj2Value.Convert(uint16Type).Interface().(uint16) |
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} |
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if uint16obj1 > uint16obj2 { |
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return compareGreater, true |
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} |
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if uint16obj1 == uint16obj2 { |
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return compareEqual, true |
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} |
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if uint16obj1 < uint16obj2 { |
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return compareLess, true |
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} |
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} |
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case reflect.Uint32: |
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{ |
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uint32obj1, ok := obj1.(uint32) |
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if !ok { |
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uint32obj1 = obj1Value.Convert(uint32Type).Interface().(uint32) |
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} |
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uint32obj2, ok := obj2.(uint32) |
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if !ok { |
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uint32obj2 = obj2Value.Convert(uint32Type).Interface().(uint32) |
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} |
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if uint32obj1 > uint32obj2 { |
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return compareGreater, true |
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} |
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if uint32obj1 == uint32obj2 { |
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return compareEqual, true |
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} |
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if uint32obj1 < uint32obj2 { |
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return compareLess, true |
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} |
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} |
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case reflect.Uint64: |
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{ |
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uint64obj1, ok := obj1.(uint64) |
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if !ok { |
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uint64obj1 = obj1Value.Convert(uint64Type).Interface().(uint64) |
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} |
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uint64obj2, ok := obj2.(uint64) |
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if !ok { |
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uint64obj2 = obj2Value.Convert(uint64Type).Interface().(uint64) |
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} |
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if uint64obj1 > uint64obj2 { |
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return compareGreater, true |
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} |
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if uint64obj1 == uint64obj2 { |
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return compareEqual, true |
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} |
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if uint64obj1 < uint64obj2 { |
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return compareLess, true |
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} |
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} |
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case reflect.Float32: |
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{ |
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float32obj1, ok := obj1.(float32) |
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if !ok { |
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float32obj1 = obj1Value.Convert(float32Type).Interface().(float32) |
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} |
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float32obj2, ok := obj2.(float32) |
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if !ok { |
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float32obj2 = obj2Value.Convert(float32Type).Interface().(float32) |
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} |
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if float32obj1 > float32obj2 { |
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return compareGreater, true |
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} |
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if float32obj1 == float32obj2 { |
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return compareEqual, true |
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} |
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if float32obj1 < float32obj2 { |
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return compareLess, true |
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} |
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} |
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case reflect.Float64: |
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{ |
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float64obj1, ok := obj1.(float64) |
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if !ok { |
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float64obj1 = obj1Value.Convert(float64Type).Interface().(float64) |
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} |
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float64obj2, ok := obj2.(float64) |
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if !ok { |
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float64obj2 = obj2Value.Convert(float64Type).Interface().(float64) |
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} |
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if float64obj1 > float64obj2 { |
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return compareGreater, true |
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} |
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if float64obj1 == float64obj2 { |
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return compareEqual, true |
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} |
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if float64obj1 < float64obj2 { |
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return compareLess, true |
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} |
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} |
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case reflect.String: |
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{ |
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stringobj1, ok := obj1.(string) |
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if !ok { |
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stringobj1 = obj1Value.Convert(stringType).Interface().(string) |
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} |
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stringobj2, ok := obj2.(string) |
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if !ok { |
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stringobj2 = obj2Value.Convert(stringType).Interface().(string) |
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} |
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297 |
if stringobj1 > stringobj2 { |
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return compareGreater, true |
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} |
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if stringobj1 == stringobj2 { |
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return compareEqual, true |
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} |
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if stringobj1 < stringobj2 { |
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return compareLess, true |
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} |
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} |
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260
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// Check for known struct types we can check for compare results. |
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case reflect.Struct: |
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{ |
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// All structs enter here. We're not interested in most types. |
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311 |
if !canConvert(obj1Value, timeType) { |
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break |
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} |
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314 |
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// time.Time can compared! |
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timeObj1, ok := obj1.(time.Time) |
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317 |
if !ok { |
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timeObj1 = obj1Value.Convert(timeType).Interface().(time.Time) |
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319 |
} |
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320 |
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timeObj2, ok := obj2.(time.Time) |
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322 |
if !ok { |
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timeObj2 = obj2Value.Convert(timeType).Interface().(time.Time) |
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324 |
} |
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325 |
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326 |
return compare(timeObj1.UnixNano(), timeObj2.UnixNano(), reflect.Int64) |
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327 |
} |
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328 |
case reflect.Slice: |
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329 |
{ |
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330 |
// We only care about the []byte type. |
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331 |
if !canConvert(obj1Value, bytesType) { |
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break |
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333 |
} |
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334 |
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335 |
// []byte can be compared! |
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336 |
bytesObj1, ok := obj1.([]byte) |
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337 |
if !ok { |
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338 |
bytesObj1 = obj1Value.Convert(bytesType).Interface().([]byte) |
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339 |
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340 |
} |
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341 |
bytesObj2, ok := obj2.([]byte) |
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342 |
if !ok { |
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343 |
bytesObj2 = obj2Value.Convert(bytesType).Interface().([]byte) |
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344 |
} |
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345 |
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346 |
return CompareType(bytes.Compare(bytesObj1, bytesObj2)), true |
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347 |
} |
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256
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348 |
} |
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349 |
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350 |
return compareEqual, false |
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351 |
} |
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352 |
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353 |
// Greater asserts that the first element is greater than the second |
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354 |
// |
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355 |
// assert.Greater(t, 2, 1) |
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356 |
// assert.Greater(t, float64(2), float64(1)) |
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357 |
// assert.Greater(t, "b", "a") |
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358 |
func Greater(t TestingT, e1 interface{}, e2 interface{}, msgAndArgs ...interface{}) bool { |
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260
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359 |
if h, ok := t.(tHelper); ok { |
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360 |
h.Helper() |
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361 |
} |
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362 |
return compareTwoValues(t, e1, e2, []CompareType{compareGreater}, "\"%v\" is not greater than \"%v\"", msgAndArgs...) |
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256
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363 |
} |
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364 |
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365 |
// GreaterOrEqual asserts that the first element is greater than or equal to the second |
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366 |
// |
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367 |
// assert.GreaterOrEqual(t, 2, 1) |
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368 |
// assert.GreaterOrEqual(t, 2, 2) |
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369 |
// assert.GreaterOrEqual(t, "b", "a") |
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370 |
// assert.GreaterOrEqual(t, "b", "b") |
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371 |
func GreaterOrEqual(t TestingT, e1 interface{}, e2 interface{}, msgAndArgs ...interface{}) bool { |
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260
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372 |
if h, ok := t.(tHelper); ok { |
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373 |
h.Helper() |
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374 |
} |
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375 |
return compareTwoValues(t, e1, e2, []CompareType{compareGreater, compareEqual}, "\"%v\" is not greater than or equal to \"%v\"", msgAndArgs...) |
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256
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376 |
} |
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377 |
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378 |
// Less asserts that the first element is less than the second |
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379 |
// |
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380 |
// assert.Less(t, 1, 2) |
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381 |
// assert.Less(t, float64(1), float64(2)) |
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382 |
// assert.Less(t, "a", "b") |
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383 |
func Less(t TestingT, e1 interface{}, e2 interface{}, msgAndArgs ...interface{}) bool { |
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260
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384 |
if h, ok := t.(tHelper); ok { |
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385 |
h.Helper() |
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386 |
} |
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387 |
return compareTwoValues(t, e1, e2, []CompareType{compareLess}, "\"%v\" is not less than \"%v\"", msgAndArgs...) |
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256
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388 |
} |
|
|
389 |
|
|
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390 |
// LessOrEqual asserts that the first element is less than or equal to the second |
|
|
391 |
// |
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|
392 |
// assert.LessOrEqual(t, 1, 2) |
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393 |
// assert.LessOrEqual(t, 2, 2) |
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394 |
// assert.LessOrEqual(t, "a", "b") |
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395 |
// assert.LessOrEqual(t, "b", "b") |
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396 |
func LessOrEqual(t TestingT, e1 interface{}, e2 interface{}, msgAndArgs ...interface{}) bool { |
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260
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397 |
if h, ok := t.(tHelper); ok { |
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398 |
h.Helper() |
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|
399 |
} |
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|
400 |
return compareTwoValues(t, e1, e2, []CompareType{compareLess, compareEqual}, "\"%v\" is not less than or equal to \"%v\"", msgAndArgs...) |
|
256
|
401 |
} |
|
|
402 |
|
|
|
403 |
// Positive asserts that the specified element is positive |
|
|
404 |
// |
|
|
405 |
// assert.Positive(t, 1) |
|
|
406 |
// assert.Positive(t, 1.23) |
|
|
407 |
func Positive(t TestingT, e interface{}, msgAndArgs ...interface{}) bool { |
|
260
|
408 |
if h, ok := t.(tHelper); ok { |
|
|
409 |
h.Helper() |
|
|
410 |
} |
|
256
|
411 |
zero := reflect.Zero(reflect.TypeOf(e)) |
|
260
|
412 |
return compareTwoValues(t, e, zero.Interface(), []CompareType{compareGreater}, "\"%v\" is not positive", msgAndArgs...) |
|
256
|
413 |
} |
|
|
414 |
|
|
|
415 |
// Negative asserts that the specified element is negative |
|
|
416 |
// |
|
|
417 |
// assert.Negative(t, -1) |
|
|
418 |
// assert.Negative(t, -1.23) |
|
|
419 |
func Negative(t TestingT, e interface{}, msgAndArgs ...interface{}) bool { |
|
260
|
420 |
if h, ok := t.(tHelper); ok { |
|
|
421 |
h.Helper() |
|
|
422 |
} |
|
256
|
423 |
zero := reflect.Zero(reflect.TypeOf(e)) |
|
260
|
424 |
return compareTwoValues(t, e, zero.Interface(), []CompareType{compareLess}, "\"%v\" is not negative", msgAndArgs...) |
|
256
|
425 |
} |
|
|
426 |
|
|
|
427 |
func compareTwoValues(t TestingT, e1 interface{}, e2 interface{}, allowedComparesResults []CompareType, failMessage string, msgAndArgs ...interface{}) bool { |
|
|
428 |
if h, ok := t.(tHelper); ok { |
|
|
429 |
h.Helper() |
|
|
430 |
} |
|
|
431 |
|
|
|
432 |
e1Kind := reflect.ValueOf(e1).Kind() |
|
|
433 |
e2Kind := reflect.ValueOf(e2).Kind() |
|
|
434 |
if e1Kind != e2Kind { |
|
|
435 |
return Fail(t, "Elements should be the same type", msgAndArgs...) |
|
|
436 |
} |
|
|
437 |
|
|
|
438 |
compareResult, isComparable := compare(e1, e2, e1Kind) |
|
|
439 |
if !isComparable { |
|
|
440 |
return Fail(t, fmt.Sprintf("Can not compare type \"%s\"", reflect.TypeOf(e1)), msgAndArgs...) |
|
|
441 |
} |
|
|
442 |
|
|
|
443 |
if !containsValue(allowedComparesResults, compareResult) { |
|
|
444 |
return Fail(t, fmt.Sprintf(failMessage, e1, e2), msgAndArgs...) |
|
|
445 |
} |
|
|
446 |
|
|
|
447 |
return true |
|
|
448 |
} |
|
|
449 |
|
|
|
450 |
func containsValue(values []CompareType, value CompareType) bool { |
|
|
451 |
for _, v := range values { |
|
|
452 |
if v == value { |
|
|
453 |
return true |
|
|
454 |
} |
|
|
455 |
} |
|
|
456 |
|
|
|
457 |
return false |
|
|
458 |
} |