JDBC - Add action and isolation validation for Transaction component

src/main/java/ortus/boxlang/runtime/components/jdbc/Transaction.java

@@ -49,7 +49,7 @@ public Transaction() {
 		            "setsavepoint"
 		        )
 		    ) ),
-		    new Attribute( Key.isolation, "isolation", Set.of(
+		    new Attribute( Key.isolation, "string", Set.of(
 		        Validator.valueOneOf(
 		            "read_uncommitted",
 		            "read_committed",

src/test/java/ortus/boxlang/runtime/components/jdbc/TransactionTest.java

@@ -23,6 +23,8 @@
 import static org.junit.jupiter.api.Assertions.assertDoesNotThrow;
 import static org.junit.jupiter.api.Assertions.assertEquals;
 import static org.junit.jupiter.api.Assertions.assertNotNull;
+import static org.junit.jupiter.api.Assertions.assertThrows;
+import static org.junit.jupiter.api.Assertions.assertTrue;
 
 import org.junit.jupiter.api.AfterAll;
 import org.junit.jupiter.api.BeforeAll;
@@ -42,6 +44,7 @@
 import ortus.boxlang.runtime.types.IStruct;
 import ortus.boxlang.runtime.types.Query;
 import ortus.boxlang.runtime.types.Struct;
+import ortus.boxlang.runtime.types.exceptions.BoxRuntimeException;
 
 public class TransactionTest {
 
@@ -220,6 +223,33 @@ public void testRollbackAllSavepoints() {
 		);
 	}
 
+	@DisplayName( "Throws on bad action level" )
+	@Test
+	public void testActionValidation() {
+		assertDoesNotThrow( () -> instance.executeStatement( "transaction action='commit';" ) );
+
+		BoxRuntimeException e = assertThrows( BoxRuntimeException.class, () -> instance.executeStatement( "transaction action='foo'{}" ) );
+
+		assertTrue( e.getMessage().startsWith( "Record [action] for component [Transaction] must be one of the following values:" ) );
+	}
+
+	@DisplayName( "Throws on bad isolation level" )
+	@Test
+	public void testIsolationValidation() {
+		assertDoesNotThrow( () -> instance.executeStatement( "transaction isolation='read_committed'{}" ) );
+
+		BoxRuntimeException e = assertThrows( BoxRuntimeException.class, () -> instance.executeStatement( "transaction isolation='foo'{}" ) );
+
+		assertTrue( e.getMessage().startsWith( "Record [isolation] for component [Transaction] must be one of the following values:" ) );
+	}
+
+	@Disabled( "Not implemented" )
+	@DisplayName( "Can set isolation levels" )
+	@Test
+	public void testIsolationLevels() {
+		// @TODO: Implement
+	}
+
 	@Disabled( "Not implemented" )
 	@DisplayName( "Can handle nested transactions" )
 	@Test