add testcase for issue #4938

core/src/test/java/com/alibaba/druid/TestUtil.java

@@ -15,6 +15,13 @@
  */
 package com.alibaba.druid;
 
+import com.alibaba.druid.util.JdbcUtils;
+import com.alibaba.druid.util.Utils;
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.InputStreamReader;
+import java.io.Reader;
 import java.lang.management.ManagementFactory;
 
 import javax.management.MBeanServer;
@@ -57,4 +64,16 @@ public class TestUtil {
             throw new RuntimeException("error");
         }
     }
+
+    public static String getResource(String path) {
+        ClassLoader contextClassLoader = Thread.currentThread().getContextClassLoader();
+        try (Reader reader = new InputStreamReader(
+                contextClassLoader
+                        .getResourceAsStream(path), "UTF-8")
+        ){
+            return Utils.read(reader);
+        } catch (IOException ignored) {
+            return null;
+        }
+    }
 }

core/src/test/java/com/alibaba/druid/bvt/filter/wall/oracle/OracleWallResourceTest.java

@@ -0,0 +1,42 @@
+/*
+ * Copyright 1999-2018 Alibaba Group Holding Ltd.
+ *
+ * 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 com.alibaba.druid.bvt.filter.wall.oracle;
+
+import com.alibaba.druid.TestUtil;
+import com.alibaba.druid.sql.PGTest;
+import com.alibaba.druid.wall.Violation;
+import com.alibaba.druid.wall.WallCheckResult;
+import com.alibaba.druid.wall.spi.OracleWallProvider;
+
+import java.util.List;
+
+public class OracleWallResourceTest extends PGTest {
+    public void test_0() throws Exception {
+        exec_test("bvt/wall/oracle/oracle-01.sql");
+    }
+
+    public void exec_test(String resource) throws Exception {
+        String sql = TestUtil.getResource(resource);
+        OracleWallProvider provider = new OracleWallProvider();
+
+        WallCheckResult checkResult = provider.check(sql);
+        List<Violation> violations = checkResult.getViolations();
+        if (!violations.isEmpty()) {
+            fail(violations.get(0).getMessage());
+        }
+    }
+
+}

core/src/test/resources/bvt/wall/oracle/oracle-01.sql

@@ -0,0 +1,6 @@
+declare
+cnt number(16):=0;
+begin
+
+commit;
+end;