Github user nickwallen commented on a diff in the pull request:
https://github.com/apache/metron/pull/667#discussion_r135262339
--- Diff:
metron-stellar/stellar-common/src/test/java/org/apache/metron/stellar/dsl/functions/TextFunctionsTest.java
---
@@ -0,0 +1,103 @@
+/**
+ * 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.metron.stellar.dsl.functions;
+
+import java.util.Arrays;
+import java.util.List;
+import java.util.Locale;
+import org.apache.metron.stellar.dsl.DefaultVariableResolver;
+import org.apache.metron.stellar.dsl.ParseException;
+import org.junit.Assert;
+import org.junit.Test;
+import java.util.HashMap;
+import java.util.Map;
+
+import static
org.apache.metron.stellar.common.utils.StellarProcessorUtils.run;
+import static
org.apache.metron.stellar.common.utils.StellarProcessorUtils.runPredicate;
+
+public class TextFunctionsTest {
+
+ static final Map<String, String> variableMap = new HashMap<String,
String>() {{
+ put("metron", "metron");
+ put("sentence", "metron is great");
+ put("empty", "");
+ put("english", "en");
+ put("klingon", "Kling");
+ put("asf", "Apache Software Foundation");
+ }};
+
+ @Test
+ public void testGetAvailableLanguageTags() {
+ Object ret = run("FUZZY_LANGS()", new HashMap<>());
+ Assert.assertNotNull(ret);
+ Assert.assertTrue(ret instanceof List);
+ List<String> tags = (List<String>) ret;
+ Assert.assertTrue(tags.size() > 0);
+ Assert.assertTrue(tags.contains("en"));
+ Assert.assertTrue(tags.contains("fr"));
+ }
+
+ @Test()
+ public void testNoMatchStrings() throws Exception {
+ runPredicate("0 == FUZZY_SCORE(metron,'z',english)",
+ new DefaultVariableResolver(v -> variableMap.get(v),
+ v -> variableMap.containsKey(v)));
+ }
+
+ @Test(expected = ParseException.class)
+ public void testMissingLanguage() throws Exception {
+ runPredicate("0 == FUZZY_SCORE(metron,'z',klingon)",
+ new DefaultVariableResolver(v -> variableMap.get(v),
+ v -> variableMap.containsKey(v)));
+ }
+
+ @Test()
+ public void testEmptyFirstArg() throws Exception {
--- End diff --
This test will never fail
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