1 files changed, 50 insertions, 0 deletions
diff --git a/core/src/test/java/org/elasticsearch/ingest/processor/TrimProcessorTests.java b/core/src/test/java/org/elasticsearch/ingest/processor/TrimProcessorTests.java
new file mode 100644
index 0000000000..a0e5fdeab2
--- /dev/null
+++ b/core/src/test/java/org/elasticsearch/ingest/processor/TrimProcessorTests.java
@@ -0,0 +1,50 @@
+/*
+ * Licensed to Elasticsearch under one or more contributor
+ * license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright
+ * ownership. Elasticsearch 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.elasticsearch.ingest.processor;
+
+public class TrimProcessorTests extends AbstractStringProcessorTestCase {
+
+    @Override
+    protected AbstractStringProcessor newProcessor(String field) {
+        return new TrimProcessor(randomAsciiOfLength(10), field);
+    }
+
+    @Override
+    protected String modifyInput(String input) {
+        String updatedFieldValue = "";
+        updatedFieldValue = addWhitespaces(updatedFieldValue);
+        updatedFieldValue += input;
+        updatedFieldValue = addWhitespaces(updatedFieldValue);
+        return updatedFieldValue;
+    }
+
+    @Override
+    protected String expectedResult(String input) {
+        return input.trim();
+    }
+
+    private static String addWhitespaces(String input) {
+        int prefixLength = randomIntBetween(0, 10);
+        for (int i = 0; i < prefixLength; i++) {
+            input += ' ';
+        }
+        return input;
+    }
+}