test: add unit test and func comment for time conversion

datetime/conversion_test.go

@@ -0,0 +1,56 @@
+package datetime
+
+import (
+	"testing"
+
+	"github.com/duke-git/lancet/v2/internal"
+)
+
+func TestToUnix(t *testing.T) {
+	assert := internal.NewAssert(t, "TestToUnix")
+
+	tm1 := NewUnixNow()
+	unixTimestamp := tm1.ToUnix()
+	tm2 := NewUnix(unixTimestamp)
+
+	assert.Equal(tm1, tm2)
+}
+
+func TestToFormat(t *testing.T) {
+	assert := internal.NewAssert(t, "TestToFormat")
+
+	tm1, err := NewFormat("2022/03/18 17:04:05")
+	assert.IsNotNil(err)
+
+	tm1, err = NewFormat("2022-03-18 17:04:05")
+	assert.IsNil(err)
+
+	res := tm1.ToFormat()
+	assert.Equal("2022-03-18 17:04:05", res)
+}
+
+func TestToFormatForTpl(t *testing.T) {
+	assert := internal.NewAssert(t, "TestToFormatForTpl")
+
+	tm1, err := NewFormat("2022/03/18 17:04:05")
+	assert.IsNotNil(err)
+
+	tm1, err = NewFormat("2022-03-18 17:04:05")
+	assert.IsNil(err)
+
+	res := tm1.ToFormatForTpl("2006/01/02 15:04:05")
+	assert.Equal("2022/03/18 17:04:05", res)
+}
+
+func TestToIso8601(t *testing.T) {
+	assert := internal.NewAssert(t, "TestToIso8601")
+
+	tm1, err := NewISO8601("2022-03-18 17:04:05")
+	assert.IsNotNil(err)
+
+	tm1, err = NewISO8601("2006-01-02T15:04:05.999Z")
+	assert.IsNil(err)
+
+	res := tm1.ToIso8601()
+	assert.Equal("2006-01-02T23:04:05+08:00", res)
+}