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diff --git a/third_party/java/jopt-simple/src/test/java/joptsimple/util/EnumConverterTest.java b/third_party/java/jopt-simple/src/test/java/joptsimple/util/EnumConverterTest.java
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index 0000000000..617f1462c1
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+++ b/third_party/java/jopt-simple/src/test/java/joptsimple/util/EnumConverterTest.java
@@ -0,0 +1,95 @@
+/*
+ The MIT License
+
+ Copyright (c) 2004-2014 Paul R. Holser, Jr.
+
+ Permission is hereby granted, free of charge, to any person obtaining
+ a copy of this software and associated documentation files (the
+ "Software"), to deal in the Software without restriction, including
+ without limitation the rights to use, copy, modify, merge, publish,
+ distribute, sublicense, and/or sell copies of the Software, and to
+ permit persons to whom the Software is furnished to do so, subject to
+ the following conditions:
+
+ The above copyright notice and this permission notice shall be
+ included in all copies or substantial portions of the Software.
+
+ THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+ LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+ OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+*/
+
+package joptsimple.util;
+
+import joptsimple.ValueConversionException;
+import org.junit.Before;
+import org.junit.Rule;
+import org.junit.Test;
+import org.junit.rules.ExpectedException;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertSame;
+import static org.junit.rules.ExpectedException.none;
+
+/**
+ * @author <a href="mailto:christian.ohr@gmail.com">Christian Ohr</a>
+ */
+public class EnumConverterTest {
+    @Rule
+    public final ExpectedException thrown = none();
+
+    private EnumConverter<TestEnum> converter;
+
+    @Before
+    public void setUp() {
+        converter = new TestEnumConverter();
+    }
+
+    @Test
+    public void convertsEnumValuesToEnum() {
+        assertEquals( TestEnum.A, converter.convert( "A" ) );
+    }
+
+    @Test
+    public void rejectsNonEnumeratedValues() {
+        thrown.expect( ValueConversionException.class );
+
+        converter.convert( "Z" );
+    }
+
+    @Test
+    public void answersCorrectValueType() {
+        assertSame( TestEnum.class, converter.valueType() );
+    }
+
+    @Test
+    public void givesDefaultValuePattern() {
+        assertEquals( "[A,B,C,D]", converter.valuePattern() );
+    }
+
+    @Test
+    public void givesCustomValuePattern() {
+        converter.setDelimiters( "(|)" );
+
+        assertEquals( "(A|B|C|D)", converter.valuePattern() );
+    }
+
+    @Test
+    public void ignoresCase() {
+        assertEquals( TestEnum.A, converter.convert( "a" ) );
+    }
+
+    private static class TestEnumConverter extends EnumConverter<TestEnum> {
+        TestEnumConverter() {
+            super( TestEnum.class );
+        }
+    }
+
+    private static enum TestEnum {
+        A, B, C, D
+    }
+}