fix(tests): update database connection strings for CI

* Use dynamic host and port for Postgres in tests
* Add helper functions for test database host and port

tests/integration/connection_test.go

@@ -2,6 +2,7 @@ package integration
 
 import (
 	"database/sql"
+	"fmt"
 	"testing"
 	"time"
 
@@ -10,7 +11,7 @@ import (
 )
 
 func TestConnection(t *testing.T) {
-	connStr := "user=user password=password dbname=broker_test host=127.0.0.1 port=5433 sslmode=disable"
+	connStr := fmt.Sprintf("user=user password=password dbname=broker_test host=%s port=%d sslmode=disable", testDBHost(), testDBPort())
 	var db *sql.DB
 	var err error
 

tests/integration/rls_test.go

@@ -3,6 +3,7 @@ package integration
 import (
 	"context"
 	"database/sql"
+	"fmt"
 	"testing"
 
 	_ "github.com/lib/pq"
@@ -47,7 +48,7 @@ func TestRLSTenantIsolation(t *testing.T) {
 	}
 
 	runtimeDB, err := sql.Open("postgres",
-		"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'")
+		fmt.Sprintf("user=test_broker_runtime password=test-pass dbname=broker_test host=%s port=%d sslmode=disable options='-c search_path=broker,public'", testDBHost(), testDBPort()))
 	require.NoError(t, err)
 	defer runtimeDB.Close()
 	require.NoError(t, runtimeDB.Ping())

tests/integration/stage5_test.go

@@ -3,6 +3,7 @@ package integration
 import (
 	"context"
 	"database/sql"
+	"fmt"
 	"log/slog"
 	"testing"
 	"time"
@@ -14,11 +15,13 @@ import (
 	"git.warky.dev/wdevs/pgsql-broker/pkg/broker/install"
 )
 
-const stage5ConnStr = "user=user password=password dbname=broker_test host=127.0.0.1 port=5433 sslmode=disable"
+func stage5ConnStr() string {
+	return fmt.Sprintf("user=user password=password dbname=broker_test host=%s port=%d sslmode=disable", testDBHost(), testDBPort())
+}
 
 func newStage5Adapter(logger adapter.Logger) *adapter.PostgresAdapter {
 	return adapter.NewPostgresAdapter(adapter.PostgresConfig{
-		Host: "127.0.0.1", Port: 5433, Database: "broker_test",
+		Host: testDBHost(), Port: testDBPort(), Database: "broker_test",
 		User: "user", Password: "password", SSLMode: "disable",
 		MaxOpenConns: 10, MaxIdleConns: 2,
 		ConnMaxLifetime: 5 * time.Minute, ConnMaxIdleTime: 10 * time.Minute,
@@ -30,7 +33,7 @@ func newStage5Adapter(logger adapter.Logger) *adapter.PostgresAdapter {
 func setupStage5Schema(t *testing.T) *sql.DB {
 	t.Helper()
 
-	db, err := connectWithRetry(stage5ConnStr, 10, 2*time.Second)
+	db, err := connectWithRetry(stage5ConnStr(), 10, 2*time.Second)
 	require.NoError(t, err)
 
 	cleanupSchema(t, db)

tests/integration/testconfig_test.go

@@ -0,0 +1,26 @@
+package integration
+
+import (
+	"os"
+	"strconv"
+)
+
+// testDBHost and testDBPort let CI point the integration suite at a
+// dynamically-assigned Postgres (TEST_DB_HOST/TEST_DB_PORT), avoiding a fixed
+// host port that can collide with other jobs on a shared runner. Local dev
+// keeps working unset, defaulting to the docker-compose test stack.
+func testDBHost() string {
+	if h := os.Getenv("TEST_DB_HOST"); h != "" {
+		return h
+	}
+	return "127.0.0.1"
+}
+
+func testDBPort() int {
+	if p := os.Getenv("TEST_DB_PORT"); p != "" {
+		if n, err := strconv.Atoi(p); err == nil {
+			return n
+		}
+	}
+	return 5433
+}

tests/integration/workflow_test.go

@@ -3,6 +3,7 @@ package integration
 import (
 	"context"
 	"database/sql"
+	"fmt"
 	"log/slog"
 	"testing"
 	"time"
@@ -27,7 +28,7 @@ func TestBrokerWorkflow(t *testing.T) {
 	ctx := context.Background()
 
 	// Database connection string
-	connStr := "user=user password=password dbname=broker_test host=127.0.0.1 port=5433 sslmode=disable"
+	connStr := fmt.Sprintf("user=user password=password dbname=broker_test host=%s port=%d sslmode=disable", testDBHost(), testDBPort())
 
 	// Connect to database with retry logic
 	db, err := connectWithRetry(connStr, 10, 2*time.Second)
@@ -43,8 +44,8 @@ func TestBrokerWorkflow(t *testing.T) {
 
 	// Create database adapter
 	postgresConfig := adapter.PostgresConfig{
-		Host:            "127.0.0.1",
-		Port:            5433,
+		Host:            testDBHost(),
+		Port:            testDBPort(),
 		Database:        "broker_test",
 		User:            "user",
 		Password:        "password",
@@ -78,8 +79,8 @@ func TestBrokerWorkflow(t *testing.T) {
 		Databases: []config.DatabaseConfig{
 			{
 				Name:       "test_db",
-				Host:       "127.0.0.1",
-				Port:       5433,
+				Host:       testDBHost(),
+				Port:       testDBPort(),
 				Database:   "broker_test",
 				User:       "user",
 				Password:   "password",