Function TestIsEmptyValue

query/encode_test.go:664–727

(t *testing.T)

}

func TestIsEmptyValue(t *testing.T) {
	str := "string"
	tests := []struct {
		value interface{}
		empty bool
	}{
		// slices, arrays, and maps
		{[]int{}, true},
		{[]int{0}, false},
		{[0]int{}, true},
		{[3]int{}, false},
		{[3]int{1}, false},
		{map[string]string{}, true},
		{map[string]string{"a": "b"}, false},

		// strings
		{"", true},
		{" ", false},
		{"a", false},

		// bool
		{true, false},
		{false, true},

		// ints of various types
		{(int)(0), true}, {(int)(1), false}, {(int)(-1), false},
		{(int8)(0), true}, {(int8)(1), false}, {(int8)(-1), false},
		{(int16)(0), true}, {(int16)(1), false}, {(int16)(-1), false},
		{(int32)(0), true}, {(int32)(1), false}, {(int32)(-1), false},
		{(int64)(0), true}, {(int64)(1), false}, {(int64)(-1), false},
		{(uint)(0), true}, {(uint)(1), false},
		{(uint8)(0), true}, {(uint8)(1), false},
		{(uint16)(0), true}, {(uint16)(1), false},
		{(uint32)(0), true}, {(uint32)(1), false},
		{(uint64)(0), true}, {(uint64)(1), false},

		// floats
		{(float32)(0), true}, {(float32)(0.0), true}, {(float32)(0.1), false},
		{(float64)(0), true}, {(float64)(0.0), true}, {(float64)(0.1), false},

		// pointers
		{(*int)(nil), true},
		{new([]int), false},
		{&str, false},

		// time
		{time.Time{}, true},
		{time.Now(), false},

		// unknown type - always false unless a nil pointer, which are always empty.
		{(*struct{ int })(nil), true},
		{struct{ int }{}, false},
		{struct{ int }{0}, false},
		{struct{ int }{1}, false},
	}

	for _, tt := range tests {
		got := isEmptyValue(reflect.ValueOf(tt.value))