chore: Add AddMail function to userstore

pkg/userstore/mail.go

@@ -0,0 +1,19 @@
+package userstore
+
+import (
+	"git.keks.cloud/kekskurse/miniauth/pkg/utils"
+	"github.com/google/uuid"
+)
+
+func (s Store) MailAdd(mail string, primary bool) error {
+	query := "INSERT INTO mail (mail, validationCode, isPrimary) VALUES (?, ?, ?);"
+	log := s.log.With().Str("func", "MailAdd").Str("mail", mail).Bool("primary", primary).Str("query", query).Logger()
+
+	validatenCode := uuid.NewString()
+	_, err := s.db.Exec(query, mail, validatenCode, primary)
+	if err != nil {
+		return utils.WrapError(ErrCantExecuteQuery, err, log)
+	}
+
+	return nil
+}

pkg/userstore/mail_test.go

@@ -0,0 +1,54 @@
+package userstore
+
+import (
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func TestAddMail(t *testing.T) {
+	store := getTestStore(t)
+	initDabase(t, store)
+
+	tts := []struct {
+		name          string
+		mail          string
+		primearyMail  bool
+		ExptErr       error
+		ExptErrString string
+	}{
+		{
+			name:         "test-add-first-mail",
+			mail:         "mail1@kekskurse.de",
+			primearyMail: false,
+		},
+		{
+			name:          "test-add-mail-again-should-return-error",
+			mail:          "mail1@kekskurse.de",
+			primearyMail:  false,
+			ExptErr:       ErrCantExecuteQuery,
+			ExptErrString: "cant execute query: constraint failed: UNIQUE constraint failed: mail.mail (2067)",
+		},
+	}
+
+	for _, tt := range tts {
+		t.Run(tt.name, func(t *testing.T) {
+			err := store.MailAdd(tt.mail, tt.primearyMail)
+			if tt.ExptErr == nil {
+				assert.Nil(t, err)
+			} else {
+				assert.ErrorIs(t, err, tt.ExptErr)
+				assert.Equal(t, tt.ExptErrString, err.Error())
+				return
+			}
+			var isValidated bool
+			var validateCode string
+			isValidated = true
+
+			err = store.db.QueryRow("SELECT validationCode, isValidated FROM mail WHERE mail = ?", tt.mail).Scan(&validateCode, &isValidated)
+			assert.Nil(t, err, "should get mail infos from db without error")
+			assert.False(t, isValidated, "mail should not be validated")
+			assert.NotEmpty(t, validateCode, "validaten code should not be empty")
+		})
+	}
+}