fix(tests): update database host from localhost to 127.0.0.1

* Adjust connection strings in integration tests for consistency
* Ensure compatibility with CI environments that use IPv4

README.md

@@ -389,7 +389,7 @@ go test -v ./tests/integration/...     # integration tests (needs local Postgres
 docker-compose -f docker-compose.test.yml up --build --abort-on-container-exit --exit-code-from tests
 ```
 
-Integration tests expect Postgres reachable at `localhost:5433` (see `tests/integration/`), including `rls_test.go` (multi-tenant isolation) and `stage5_test.go`.
+Integration tests expect Postgres reachable at `127.0.0.1:5433` (see `tests/integration/`), including `rls_test.go` (multi-tenant isolation) and `stage5_test.go`. `127.0.0.1` is used instead of `localhost` because some CI Docker hosts publish container ports on IPv4 only, and `localhost` can resolve to `::1` first and fail.
 
 ### Project Structure
 

broker.test.yaml

@@ -1,6 +1,6 @@
 databases:
   - name: test
-    host: localhost
+    host: 127.0.0.1
     port: 5433
     database: broker_test
     user: user

tests/integration/connection_test.go

@@ -10,7 +10,7 @@ import (
 )
 
 func TestConnection(t *testing.T) {
-	connStr := "user=user password=password dbname=broker_test port=5433 sslmode=disable"
+	connStr := "user=user password=password dbname=broker_test host=127.0.0.1 port=5433 sslmode=disable"
 	var db *sql.DB
 	var err error
 

tests/integration/rls_test.go

@@ -47,7 +47,7 @@ func TestRLSTenantIsolation(t *testing.T) {
 	}
 
 	runtimeDB, err := sql.Open("postgres",
-		"user=test_broker_runtime password=test-pass dbname=broker_test host=localhost port=5433 sslmode=disable options='-c search_path=broker,public'")
+		"user=test_broker_runtime password=test-pass dbname=broker_test host=127.0.0.1 port=5433 sslmode=disable options='-c search_path=broker,public'")
 	require.NoError(t, err)
 	defer runtimeDB.Close()
 	require.NoError(t, runtimeDB.Ping())

tests/integration/stage5_test.go

@@ -14,11 +14,11 @@ import (
 	"git.warky.dev/wdevs/pgsql-broker/pkg/broker/install"
 )
 
-const stage5ConnStr = "user=user password=password dbname=broker_test host=localhost port=5433 sslmode=disable"
+const stage5ConnStr = "user=user password=password dbname=broker_test host=127.0.0.1 port=5433 sslmode=disable"
 
 func newStage5Adapter(logger adapter.Logger) *adapter.PostgresAdapter {
 	return adapter.NewPostgresAdapter(adapter.PostgresConfig{
-		Host: "localhost", Port: 5433, Database: "broker_test",
+		Host: "127.0.0.1", Port: 5433, Database: "broker_test",
 		User: "user", Password: "password", SSLMode: "disable",
 		MaxOpenConns: 10, MaxIdleConns: 2,
 		ConnMaxLifetime: 5 * time.Minute, ConnMaxIdleTime: 10 * time.Minute,

tests/integration/workflow_test.go

@@ -27,7 +27,7 @@ func TestBrokerWorkflow(t *testing.T) {
 	ctx := context.Background()
 
 	// Database connection string
-	connStr := "user=user password=password dbname=broker_test host=localhost port=5433 sslmode=disable"
+	connStr := "user=user password=password dbname=broker_test host=127.0.0.1 port=5433 sslmode=disable"
 
 	// Connect to database with retry logic
 	db, err := connectWithRetry(connStr, 10, 2*time.Second)
@@ -43,7 +43,7 @@ func TestBrokerWorkflow(t *testing.T) {
 
 	// Create database adapter
 	postgresConfig := adapter.PostgresConfig{
-		Host:            "localhost",
+		Host:            "127.0.0.1",
 		Port:            5433,
 		Database:        "broker_test",
 		User:            "user",
@@ -78,7 +78,7 @@ func TestBrokerWorkflow(t *testing.T) {
 		Databases: []config.DatabaseConfig{
 			{
 				Name:       "test_db",
-				Host:       "localhost",
+				Host:       "127.0.0.1",
 				Port:       5433,
 				Database:   "broker_test",
 				User:       "user",