test: add integration test for named connectors.

jdbc/postgres/src/test/java/com/google/cloud/sql/postgres/JdbcPostgresNamedConnectorIntegrationTests.java

@@ -1,11 +1,11 @@
 /*
- * Copyright 2020 Google LLC
+ * Copyright 2023 Google LLC
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
  *
- *     https://www.apache.org/licenses/LICENSE-2.0
+ * http://www.apache.org/licenses/LICENSE-2.0
  *
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
@@ -44,12 +44,12 @@
 @RunWith(JUnit4.class)
 public class JdbcPostgresNamedConnectorIntegrationTests {
 
-  private static final String CONNECTION_NAME = System.getenv("POSTGRES_CONNECTION_NAME");
+  private static final String CONNECTION_NAME = System.getenv("POSTGRES_IAM_CONNECTION_NAME");
   private static final String DB_NAME = System.getenv("POSTGRES_DB");
-  private static final String DB_USER = System.getenv("POSTGRES_USER");
+  private static final String DB_USER = System.getenv("POSTGRES_IAM_USER");
   private static final ImmutableList<String> requiredEnvVars =
-      ImmutableList.of("POSTGRES_USER", "POSTGRES_PASS", "POSTGRES_DB", "POSTGRES_CONNECTION_NAME");
-  @Rule public Timeout globalTimeout = new Timeout(30, TimeUnit.SECONDS);
+      ImmutableList.of("POSTGRES_IAM_USER", "POSTGRES_DB", "POSTGRES_IAM_CONNECTION_NAME");
+  @Rule public Timeout globalTimeout = new Timeout(60, TimeUnit.SECONDS);
 
   private HikariDataSource connectionPool;
 
@@ -83,16 +83,16 @@ public void setUpPool() throws SQLException {
     String jdbcURL = String.format("jdbc:postgresql:///%s", DB_NAME);
     Properties connProps = new Properties();
 
-    // Configure connection properties
+    // Configure Postgres driver properties
     connProps.setProperty("user", DB_USER);
     connProps.setProperty("password", "password");
     connProps.setProperty("socketFactory", "com.google.cloud.sql.postgres.SocketFactory");
 
-    // Include Cloud SQL connection properties
+    // Configure Cloud SQL connector properties
     connProps.setProperty("cloudSqlInstance", CONNECTION_NAME);
     connProps.setProperty("enableIamAuth", "true");
 
-    // Instruct the JDBC connection to use the named connector instead of the default.
+    // Configure the named connector registered as "my-connector"
     connProps.setProperty("cloudSqlNamedConnector", "my-connector");
 
     // Initialize connection pool