tsk-24: Fixed tests (#25)

Closes #24

Reviewed-on: phoenix/textsender-api#25
Co-authored-by: phoenix <kundeng00@pm.me>
Co-committed-by: phoenix <kundeng00@pm.me>

internal/handler/scheduled_message_test.go

@@ -13,6 +13,7 @@ import (
 	"github.com/stretchr/testify/assert"
 
 	"git.kundeng.us/phoenix/textsender-api/internal/handler/endpoint"
+	"git.kundeng.us/phoenix/textsender-api/internal/store/mock"
 )
 
 type CreateScheduledMessageRequest struct {
@@ -23,7 +24,7 @@ type CreateScheduledMessageRequest struct {
 
 func TestCreateScheduledMessageWithMock(t *testing.T) {
 	now := time.Now()
-	mockStore := NewMockScheduledMessageStore()
+	mockStore := mock.NewMockScheduledMessageStore()
 	handler := NewScheduledMessageHandler(mockStore)
 
 	testUserId := uuid.New()