Add test for making QR code url

internal/utils/make_qr_code_url.go

@@ -11,7 +11,7 @@ func MakeQRCodeURL(data string) string {
 	rv := url.URL{
 		Scheme:   "https",
 		Host:     "api.qrserver.com",
-		Path:     "v1/create-qr-code",
+		Path:     "/v1/create-qr-code",
 		RawQuery: values.Encode(),
 	}
 

internal/utils/make_qr_code_url_test.go

@@ -0,0 +1,31 @@
+package utils_test
+
+import (
+	"net/url"
+	"strings"
+	"testing"
+
+	"github.com/9seconds/mtg/v2/internal/utils"
+	"github.com/stretchr/testify/suite"
+)
+
+type MakeQRCodeURLTestSuite struct {
+	suite.Suite
+}
+
+func (suite *MakeQRCodeURLTestSuite) TestSomeData() {
+	value := utils.MakeQRCodeURL("some data")
+
+	parsed, err := url.Parse(value)
+	suite.NoError(err)
+
+	suite.Equal("some data", parsed.Query().Get("data"))
+	suite.Equal("svg", parsed.Query().Get("format"))
+	suite.Equal("api.qrserver.com", strings.TrimPrefix(parsed.Host, "www."))
+	suite.Equal("v1/create-qr-code", strings.Trim(parsed.Path, "/"))
+}
+
+func TestMakeQRCodeURL(t *testing.T) {
+	t.Parallel()
+	suite.Run(t, &MakeQRCodeURLTestSuite{})
+}