kriegaex commented on code in PR #133: URL: https://github.com/apache/xalan-java/pull/133#discussion_r1412284960
########## xalan/src/test/java/org/apache/xalan/VersionTest.java: ########## @@ -0,0 +1,100 @@ +/* + * 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.xalan; + +import org.junit.jupiter.api.Test; +import org.junit.jupiter.params.ParameterizedTest; +import org.junit.jupiter.params.provider.Arguments; +import org.junit.jupiter.params.provider.MethodSource; +import org.mockito.MockedStatic; +import org.mockito.Mockito; + +import java.io.ByteArrayInputStream; +import java.util.stream.Stream; + +import static org.junit.jupiter.api.Assertions.assertEquals; + +public class VersionTest { + + @ParameterizedTest(name = "{0} -> {2}") + @MethodSource("testReadPropertiesArgs") + public void testReadProperties(String ignoredName, String properties, String version) { + try (MockedStatic<Version> versionMock = Mockito.mockStatic(Version.class, Mockito.CALLS_REAL_METHODS)) { + versionMock + .when(Version::getPropertiesStream) + .thenReturn(new ByteArrayInputStream(properties.getBytes())); + assertEquals(version, Version.readVersionNumber()); + } + } + + private static Stream<Arguments> testReadPropertiesArgs() { + return Stream.of( + Arguments.of("single line without line feed", "version=1.2.3", "1.2.3"), + Arguments.of("single line with line feed", "version=4.5.D6-SNAPSHOT\n", "4.5.D6-SNAPSHOT"), + Arguments.of("multiple lines with version number", "foo=bar\nversion=7.8.9\nbaz=zot\n", "7.8.9"), + Arguments.of("single line without version number", "verXion=7.8.9\n", "0.0.0"), + Arguments.of("multiple lines without version number", "foo=bar\nverXion=7.8.9\nbaz=zot\n", "0.0.0") + ); + } + + @Test + public void testCannotReadProperties() { + try (MockedStatic<Version> versionMock = Mockito.mockStatic(Version.class, Mockito.CALLS_REAL_METHODS)) { + versionMock + .when(Version::getPropertiesStream) + .thenThrow(NullPointerException.class); + assertEquals("0.0.0", Version.readVersionNumber()); Review Comment: I do not expect a NPE, but the javadoc says that NPE will be thrown if the input parameter is `null`. So I am simulating a NPE here, which is as good as any other runtime exception that might be thrown. An I/O operation can throw an exception, which is why I am covering that code path. The method is called from a try with resources, which forces me to handle a possible I/O exception. Due to the possible NPE, I am catching more than just I/O exceptions. Your comment said I should even catch all throwables, which I won't so. Either way, to cover the exception handling block, I need to throw an exception in this test. NPE is just an arbitrary choice. -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: dev-unsubscr...@xalan.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org --------------------------------------------------------------------- To unsubscribe, e-mail: dev-unsubscr...@xalan.apache.org For additional commands, e-mail: dev-h...@xalan.apache.org
