DRILL-7060: Support JsonParser Feature 'ALLOW_BACKSLASH_ESCAPING_ANY_CHARACTER' (#1663)

1 files changed, 87 insertions, 0 deletions

diff --git a/exec/java-exec/src/test/java/org/apache/drill/exec/vector/complex/writer/TestJsonEscapeAnyChar.java b/exec/java-exec/src/test/java/org/apache/drill/exec/vector/complex/writer/TestJsonEscapeAnyChar.java
new file mode 100644
index 000000000..323da27cc
--- /dev/null
+++ b/exec/java-exec/src/test/java/org/apache/drill/exec/vector/complex/writer/TestJsonEscapeAnyChar.java
@@ -0,0 +1,87 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you 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 org.apache.drill.exec.vector.complex.writer;
+
+import org.apache.commons.io.FileUtils;
+import org.apache.drill.common.exceptions.UserRemoteException;
+import org.apache.drill.exec.ExecConstants;
+import org.apache.drill.test.ClusterFixture;
+import org.apache.drill.test.ClusterTest;
+import org.junit.After;
+import org.junit.Before;
+import org.junit.Test;
+
+import java.io.File;
+
+import static org.hamcrest.CoreMatchers.containsString;
+import static org.junit.Assert.assertThat;
+
+public class TestJsonEscapeAnyChar extends ClusterTest {
+
+  private File testFile;
+  private static final String TABLE = "escape.json";
+  private static final String JSON_DATA = "{\"name\": \"ABC\\S\"}";
+  private static final String QUERY = String.format("select * from dfs.`%s`", TABLE);
+
+  @Before
+  public void setup() throws Exception {
+    startCluster(ClusterFixture.builder(dirTestWatcher));
+    testFile = new File(dirTestWatcher.getRootDir(), TABLE);
+    FileUtils.writeStringToFile(testFile, JSON_DATA);
+  }
+
+  @Test
+  public void testwithOptionEnabled() throws Exception {
+
+    try {
+      enableJsonReaderEscapeAnyChar();
+      testBuilder()
+        .sqlQuery(QUERY)
+        .unOrdered()
+        .baselineColumns("name")
+        .baselineValues("ABCS")
+        .build()
+        .run();
+    } finally {
+      resetJsonReaderEscapeAnyChar();
+    }
+  }
+
+  @Test
+  public void testwithOptionDisabled() throws Exception {
+    try {
+      queryBuilder().sql(QUERY)
+        .run();
+    } catch (UserRemoteException e) {
+      assertThat(e.getMessage(), containsString("DATA_READ ERROR: Error parsing JSON - Unrecognized character escape"));
+    }
+  }
+
+  private void enableJsonReaderEscapeAnyChar() {
+    client.alterSession(ExecConstants.JSON_READER_ESCAPE_ANY_CHAR, true);
+  }
+
+  private void resetJsonReaderEscapeAnyChar() {
+    client.alterSession(ExecConstants.JSON_READER_ESCAPE_ANY_CHAR, false);
+  }
+
+  @After
+  public void teardown() throws Exception {
+    FileUtils.deleteQuietly(testFile);
+  }
+}
\ No newline at end of file