initial commit

tests/integration/auth_login_invalid_credentials_test.go

@@ -0,0 +1,116 @@
+/*
+ * Copyright (C) 2026 Fluxer Contributors
+ *
+ * This file is part of Fluxer.
+ *
+ * Fluxer is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * Fluxer is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with Fluxer. If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package integration
+
+import (
+	"net/http"
+	"testing"
+)
+
+func TestAuthLoginInvalidCredentials(t *testing.T) {
+	client := newTestClient(t)
+
+	t.Run("wrong password returns bad request with field errors", func(t *testing.T) {
+		account := createTestAccount(t, client)
+
+		loginReq := loginRequest{
+			Email:    account.Email,
+			Password: "WrongPassword123!",
+		}
+
+		resp, err := client.postJSON("/auth/login", loginReq)
+		if err != nil {
+			t.Fatalf("failed to call login endpoint: %v", err)
+		}
+		defer resp.Body.Close()
+
+		if resp.StatusCode != http.StatusBadRequest {
+			t.Fatalf("expected 400 Bad Request for wrong password, got %d: %s", resp.StatusCode, readResponseBody(resp))
+		}
+	})
+
+	t.Run("non-existent email returns bad request with field errors", func(t *testing.T) {
+		loginReq := loginRequest{
+			Email:    "nonexistent@example.com",
+			Password: "SomePassword123!",
+		}
+
+		resp, err := client.postJSON("/auth/login", loginReq)
+		if err != nil {
+			t.Fatalf("failed to call login endpoint: %v", err)
+		}
+		defer resp.Body.Close()
+
+		if resp.StatusCode != http.StatusBadRequest {
+			t.Fatalf("expected 400 Bad Request for non-existent email, got %d: %s", resp.StatusCode, readResponseBody(resp))
+		}
+	})
+
+	t.Run("invalid email format returns bad request", func(t *testing.T) {
+		loginReq := loginRequest{
+			Email:    "not-an-email",
+			Password: "SomePassword123!",
+		}
+
+		resp, err := client.postJSON("/auth/login", loginReq)
+		if err != nil {
+			t.Fatalf("failed to call login endpoint: %v", err)
+		}
+		defer resp.Body.Close()
+
+		if resp.StatusCode != http.StatusBadRequest && resp.StatusCode != http.StatusUnauthorized {
+			t.Fatalf("expected 400 Bad Request or 401 Unauthorized for invalid email format, got %d: %s", resp.StatusCode, readResponseBody(resp))
+		}
+	})
+
+	t.Run("empty password returns bad request or unauthorized", func(t *testing.T) {
+		loginReq := loginRequest{
+			Email:    "test@example.com",
+			Password: "",
+		}
+
+		resp, err := client.postJSON("/auth/login", loginReq)
+		if err != nil {
+			t.Fatalf("failed to call login endpoint: %v", err)
+		}
+		defer resp.Body.Close()
+
+		if resp.StatusCode != http.StatusBadRequest && resp.StatusCode != http.StatusUnauthorized {
+			t.Fatalf("expected 400 Bad Request or 401 Unauthorized for empty password, got %d: %s", resp.StatusCode, readResponseBody(resp))
+		}
+	})
+
+	t.Run("empty email returns bad request or unauthorized", func(t *testing.T) {
+		loginReq := loginRequest{
+			Email:    "",
+			Password: "SomePassword123!",
+		}
+
+		resp, err := client.postJSON("/auth/login", loginReq)
+		if err != nil {
+			t.Fatalf("failed to call login endpoint: %v", err)
+		}
+		defer resp.Body.Close()
+
+		if resp.StatusCode != http.StatusBadRequest && resp.StatusCode != http.StatusUnauthorized {
+			t.Fatalf("expected 400 Bad Request or 401 Unauthorized for empty email, got %d: %s", resp.StatusCode, readResponseBody(resp))
+		}
+	})
+}