Function TestFormatter_FloatFormat

formatter_test.go:604–715

(t *testing.T)

}

func TestFormatter_FloatFormat(t *testing.T) {
	cases := []struct {
		name     string
		format   FloatFormat
		value    interface{}
		wantText string
	}{
		// float32
		{
			name:     "float32 auto small exponent",
			format:   FloatFormatAuto,
			value:    float32(1.2345678),
			wantText: "1.234_567_8",
		},
		{
			name:     "float32 auto large exponent",
			format:   FloatFormatAuto,
			value:    float32(1234567.8),
			wantText: "1.234_567_8e+06",
		},
		{
			name:     "float32 decimal",
			format:   FloatFormatDecimal,
			value:    float32(1234567.8),
			wantText: "1_234_567.8",
		},
		{
			name:     "float32 scientific",
			format:   FloatFormatScientific,
			value:    float32(1.2345678),
			wantText: "1.234_567_8e+00",
		},
		// float64
		{
			name:     "float64 auto small exponent",
			format:   FloatFormatAuto,
			value:    float64(1.23456789),
			wantText: "1.234_567_89",
		},
		{
			name:     "float64 auto large exponent",
			format:   FloatFormatAuto,
			value:    float64(12345678.9),
			wantText: "1.234_567_89e+07",
		},
		{
			name:     "float64 decimal",
			format:   FloatFormatDecimal,
			value:    float64(12345678.9),
			wantText: "12_345_678.9",
		},
		{
			name:     "float64 scientific",
			format:   FloatFormatScientific,
			value:    float64(1.23456789),
			wantText: "1.234_567_89e+00",
		},
		// no fractional part