| //////////////////////////////////////////////////////////////////////////////// |
| // checkstyle: Checks Java source code for adherence to a set of rules. |
| // Copyright (C) 2001-2017 the original author or authors. |
| // |
| // This library is free software; you can redistribute it and/or |
| // modify it under the terms of the GNU Lesser General Public |
| // License as published by the Free Software Foundation; either |
| // version 2.1 of the License, or (at your option) any later version. |
| // |
| // This library is distributed in the hope that it will be useful, |
| // but WITHOUT ANY WARRANTY; without even the implied warranty of |
| // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| // Lesser General Public License for more details. |
| // |
| // You should have received a copy of the GNU Lesser General Public |
| // License along with this library; if not, write to the Free Software |
| // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| //////////////////////////////////////////////////////////////////////////////// |
| |
| package com.puppycrawl.tools.checkstyle.utils; |
| |
| import static com.puppycrawl.tools.checkstyle.internal.utils.TestUtil.isUtilsClassHasPrivateConstructor; |
| import static org.junit.Assert.assertFalse; |
| import static org.junit.Assert.assertTrue; |
| |
| import java.io.File; |
| import java.io.IOException; |
| import java.io.InputStream; |
| import java.net.URI; |
| import java.net.URL; |
| |
| import org.junit.Rule; |
| import org.junit.Test; |
| import org.junit.rules.TemporaryFolder; |
| import org.junit.runner.RunWith; |
| import org.mockito.BDDMockito; |
| import org.mockito.Mockito; |
| import org.powermock.api.mockito.PowerMockito; |
| import org.powermock.core.classloader.annotations.PrepareForTest; |
| import org.powermock.modules.junit4.PowerMockRunner; |
| |
| @RunWith(PowerMockRunner.class) |
| public class FilterUtilsTest { |
| @Rule |
| public final TemporaryFolder temporaryFolder = new TemporaryFolder(); |
| |
| @Test |
| public void testIsProperUtilsClass() throws ReflectiveOperationException { |
| assertTrue("Constructor is not private", |
| isUtilsClassHasPrivateConstructor(FilterUtils.class, true)); |
| } |
| |
| @Test |
| public void testExistingFile() throws Exception { |
| final File file = temporaryFolder.newFile(); |
| assertTrue("Suppression file exists", |
| FilterUtils.isFileExists(file.getPath())); |
| } |
| |
| @Test |
| public void testNonExistentFile() { |
| assertFalse("Suppression file does not exist", |
| FilterUtils.isFileExists("non-existent.xml")); |
| } |
| |
| @Test |
| @PrepareForTest({FilterUtils.class, CommonUtils.class}) |
| public void testExceptionOnClosing() throws Exception { |
| final File file = temporaryFolder.newFile("existing.xml"); |
| final InputStream inputStream = PowerMockito.mock(InputStream.class); |
| Mockito.doThrow(IOException.class).when(inputStream).close(); |
| |
| final URL url = PowerMockito.mock(URL.class); |
| BDDMockito.given(url.openStream()).willReturn(inputStream); |
| |
| final URI uri = PowerMockito.mock(URI.class); |
| BDDMockito.given(uri.toURL()).willReturn(url); |
| |
| PowerMockito.mockStatic(CommonUtils.class); |
| |
| final String fileName = file.getPath(); |
| BDDMockito.given(CommonUtils.getUriByFilename(fileName)).willReturn(uri); |
| assertFalse("Should be false, because error on close", |
| FilterUtils.isFileExists(fileName)); |
| } |
| } |