fmt, radian

fmt_test.go

@@ -0,0 +1,12 @@
+package gocat
+
+import (
+	"fmt"
+	"github.com/stretchr/testify/assert"
+	"math"
+	"testing"
+)
+
+func TestFormatted(t *testing.T) {
+	assert.Equal(t, "3.14", fmt.Sprintf("%.2f", math.Pi))
+}

math_test.go

@@ -0,0 +1,20 @@
+package gocat
+
+import (
+	"github.com/stretchr/testify/assert"
+	"math"
+	"testing"
+)
+
+func deg_to_rad(deg float64) float64 {
+	return (deg * math.Pi / 180)
+}
+
+func rad_to_deg(rad float64) float64 {
+	return (rad * 180 / math.Pi)
+}
+
+func TestRadian(t *testing.T) {
+	assert.Equal(t, math.Pi, deg_to_rad(180))
+	assert.Equal(t, 180.0, rad_to_deg(math.Pi))
+}