diff options
Diffstat (limited to 'feature-pooling-dmaap/src/test/java/org/onap/policy/drools/pooling/extractor/MethodExtractorTest.java')
-rw-r--r-- | feature-pooling-dmaap/src/test/java/org/onap/policy/drools/pooling/extractor/MethodExtractorTest.java | 99 |
1 files changed, 99 insertions, 0 deletions
diff --git a/feature-pooling-dmaap/src/test/java/org/onap/policy/drools/pooling/extractor/MethodExtractorTest.java b/feature-pooling-dmaap/src/test/java/org/onap/policy/drools/pooling/extractor/MethodExtractorTest.java new file mode 100644 index 00000000..ae5858e7 --- /dev/null +++ b/feature-pooling-dmaap/src/test/java/org/onap/policy/drools/pooling/extractor/MethodExtractorTest.java @@ -0,0 +1,99 @@ +/* + * ============LICENSE_START======================================================= + * ONAP + * ================================================================================ + * Copyright (C) 2018 AT&T Intellectual Property. All rights reserved. + * ================================================================================ + * 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. + * ============LICENSE_END========================================================= + */ + +package org.onap.policy.drools.pooling.extractor; + +import static org.junit.Assert.assertEquals; +import static org.junit.Assert.assertNull; +import java.lang.reflect.Method; +import org.junit.Before; +import org.junit.Test; + +public class MethodExtractorTest { + + private static final String VALUE = "the value"; + private static final Integer INT_VALUE = 10; + + private Method meth; + private MethodExtractor ext; + + @Before + public void setUp() throws Exception { + meth = MyClass.class.getMethod("getValue"); + ext = new MethodExtractor(meth); + } + + @Test + public void testExtract() throws Exception { + assertEquals(VALUE, ext.extract(new MyClass())); + + // repeat + assertEquals(VALUE, ext.extract(new MyClass())); + + // null value + MyClass obj = new MyClass(); + meth = MyClass.class.getMethod("getNullValue"); + ext = new MethodExtractor(meth); + assertEquals(null, ext.extract(obj)); + + // different value type + meth = MyClass.class.getMethod("getIntValue"); + ext = new MethodExtractor(meth); + assertEquals(INT_VALUE, ext.extract(new MyClass())); + } + + @Test + public void testExtract_ArgEx() { + // pass it the wrong class type + assertNull(ext.extract(this)); + } + + @Test + public void testExtract_InvokeEx() throws Exception { + // invoke method that throws an exception + meth = MyClass.class.getMethod("throwException"); + ext = new MethodExtractor(meth); + assertEquals(null, ext.extract(new MyClass())); + } + + private static class MyClass { + + @SuppressWarnings("unused") + public String getValue() { + return VALUE; + } + + @SuppressWarnings("unused") + public int getIntValue() { + return INT_VALUE; + } + + @SuppressWarnings("unused") + public String getNullValue() { + return null; + } + + @SuppressWarnings("unused") + public String throwException() { + throw new IllegalStateException("expected"); + } + } + +} |