feat: update Oracle documentation, add integration tests, and improve code comments

docs/en/reference/prebuilt-tools.md

@@ -689,7 +689,9 @@ See [Usage Examples](../reference/cli.md#examples).
 *   **Permissions:**
     *   **Database-level permissions** are required to execute Cypher queries.
 *   **Tools:**
-    
+    *   `execute_cypher`: Executes a Cypher query.
+    *   `get_schema`: Retrieves the schema of the Neo4j database.
+
 
 ## Oracle
 
@@ -698,14 +700,12 @@ See [Usage Examples](../reference/cli.md#examples).
     *   `ORACLE_HOST`: The hostname or IP address of the Oracle server.
     *   `ORACLE_PORT`: The port number for the Oracle server (Default: 1521).
     *   `ORACLE_CONNECTION_STRING`: The
-    *   `ORACLE_USER`: The
-    *   `ORACLE_PASSWORD`: The
+    *   `ORACLE_USER`: The username for the Oracle DB instance.
+    *   `ORACLE_PASSWORD`: The password for the Oracle DB instance
     *   `ORACLE_WALLET`: The path to Oracle DB Wallet file for the databases that support this authentication type
-    *   `ORACLE_USE_OCI`: true or false, The flag if the Oracle Database is deployed in cloud deployment
-
+    *   `ORACLE_USE_OCI`: true or false, The flag if the Oracle Database is deployed in cloud deployment. Default is false.
 *   **Permissions:**
-    *   Database-level permissions (e.g., `SELECT`, `INSERT`) are required to
-        execute queries.
+    *   Database-level permissions (e.g., `SELECT`, `INSERT`) are required to execute queries.
 *   **Tools:**
     *   `execute_sql`: Executes a SQL query.
     *   `list_tables`: Lists tables in the database.

internal/sources/oracle/oracle.go

@@ -1,4 +1,17 @@
-// Copyright © 2025, Oracle and/or its affiliates.
+// Copyright 2025 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
+//
+//     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,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
 package oracle
 
 import (

tests/oracle/oracle_integration_test.go

@@ -1,4 +1,16 @@
-// Copyright © 2025, Oracle and/or its affiliates.
+// Copyright 2026 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
+//
+//     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,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
 
 package oracle
 
@@ -163,7 +175,7 @@ func TestOracleConnectionPureGoWithWallet(t *testing.T) {
 		"", // tnsAlias
 		"", // tnsAdmin
 		"/tmp/nonexistent_wallet", // walletLocation
-		false,                     // useOCI
+		oracleUseOCI,                     // useOCI
 	)
 	defer cleanup()
 
@@ -337,7 +349,7 @@ func getOracleAuthToolInfo(t *testing.T, tableName string) (string, string, stri
 
 	toolStatement := fmt.Sprintf(`SELECT "name" FROM %s WHERE "email" = :1`, tableName)
 
-	params := []any{"Alice", tests.GetTestServiceAccountEmail(t), "Jane", "janedoe@gmail.com"}
+	params := []any{"Alice", tests.ServiceAccountEmail, "Jane", "janedoe@gmail.com"}
 
 	return createStatement, insertStatement, toolStatement, params
 }

tests/oracle/oracle_test.go

@@ -1,4 +1,16 @@
-// Copyright © 2025, Oracle and/or its affiliates.
+// Copyright 2025 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
+//
+//     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,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
 
 package oracle_test