add unit tests

pkg/validators/email_test.go

@@ -0,0 +1,48 @@
+package validators
+
+import (
+	"testing"
+
+	"github.com/go-playground/validator/v10"
+	"github.com/stretchr/testify/assert"
+)
+
+func TestValidEmail(t *testing.T) {
+	validate := validator.New()
+	err := validate.RegisterValidation("validEmail", ValidEmail)
+	assert.Nil(t, err)
+
+	email := "foo@bar.com"
+	err = validate.Var(email, "validEmail")
+	assert.Nil(t, err)
+
+	email = "foo@1.2.3.4"
+	err = validate.Var(email, "validEmail")
+	assert.Nil(t, err)
+
+	email = "foo_bar@foo.bar"
+	err = validate.Var(email, "validEmail")
+	assert.Nil(t, err)
+}
+
+func TestInvalidEmail(t *testing.T) {
+	validate := validator.New()
+	err := validate.RegisterValidation("validEmail", ValidEmail)
+	assert.Nil(t, err)
+
+	email := "foo"
+	err = validate.Var(email, "validEmail")
+	assert.NotNil(t, err)
+
+	email = "@bar"
+	err = validate.Var(email, "validEmail")
+	assert.NotNil(t, err)
+
+	email = "foo@bar"
+	err = validate.Var(email, "validEmail")
+	assert.NotNil(t, err)
+
+	email = "foo@bar."
+	err = validate.Var(email, "validEmail")
+	assert.NotNil(t, err)
+}