feat(checkout): allow zero total checkout

tingtt · tingtt · commit 5fb7c57b9efe · 2025-05-17T04:48:12.000+09:00
diff --git a/internal/domain/checkout/validatecheckout.go b/internal/domain/checkout/validatecheckout.go
@@ -12,8 +12,8 @@ func (c *Checkout) Validate() error {
 	if c.CustomerEmail == "" {
 		return errors.New("CustomerEmail cannot be empty")
 	}
-	if c.TotalPrice <= 0 {
-		return errors.New("total price cannot be less than or equal to zero")
+	if c.TotalPrice < 0 {
+		return errors.New("total price cannot be less than zero")
 	}
 	if c.Timestamp.IsZero() {
 		return fmt.Errorf("timestamp cannot be zero")

Original file line number	Diff line number	Diff line change
`@@ -12,8 +12,8 @@ func (c *Checkout) Validate() error {`
`12`	`12`	`if c.CustomerEmail == "" {`
`13`	`13`	`return errors.New("CustomerEmail cannot be empty")`
`14`	`14`	`}`
`15`		`- if c.TotalPrice <= 0 {`
`16`		`- return errors.New("total price cannot be less than or equal to zero")`
	`15`	`+ if c.TotalPrice < 0 {`
	`16`	`+ return errors.New("total price cannot be less than zero")`
`17`	`17`	`}`
`18`	`18`	`if c.Timestamp.IsZero() {`
`19`	`19`	`return fmt.Errorf("timestamp cannot be zero")`