Java tutorial
/** * Copyright (C) 2010-2016 Gordon Fraser, Andrea Arcuri and EvoSuite * contributors * * This file is part of EvoSuite. * * EvoSuite 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 3.0 of the License, or * (at your option) any later version. * * EvoSuite 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 Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with EvoSuite. If not, see <http://www.gnu.org/licenses/>. */ package org.evosuite.junit; import static org.junit.Assert.assertEquals; import static org.junit.Assert.assertTrue; import java.io.File; import java.io.FileReader; import java.io.IOException; import java.nio.file.FileSystems; import java.nio.file.Files; import java.util.List; import java.util.Map; import org.apache.commons.io.FileUtils; import org.evosuite.EvoSuite; import org.evosuite.Properties; import org.evosuite.Properties.StatisticsBackend; import org.evosuite.SystemTestBase; import org.evosuite.continuous.persistency.CsvJUnitData; import org.evosuite.statistics.OutputVariable; import org.evosuite.statistics.RuntimeVariable; import org.evosuite.statistics.SearchStatistics; import org.junit.Assert; import org.junit.Before; import org.junit.Test; import com.examples.with.different.packagename.ClassHierarchyIncludingInterfaces; import com.examples.with.different.packagename.ClassHierarchyIncludingInterfacesTest; import com.examples.with.different.packagename.ClassPublicInterface; import com.examples.with.different.packagename.ClassPublicInterfaceTest; import com.examples.with.different.packagename.ClassWithPrivateInterfaces; import com.examples.with.different.packagename.ClassWithPrivateInterfacesTest; import au.com.bytecode.opencsv.CSVReader; public class CoverageAnalysisWithRefectionSystemTest extends SystemTestBase { @Before public void prepare() { try { FileUtils.deleteDirectory(new File("evosuite-report")); } catch (IOException e) { Assert.fail(e.getMessage()); } Properties.TARGET_CLASS = ""; Properties.OUTPUT_VARIABLES = null; Properties.STATISTICS_BACKEND = StatisticsBackend.DEBUG; Properties.COVERAGE_MATRIX = false; CoverageAnalysis.reset(); } @Test public void testGetAllInterfaces() throws IOException { EvoSuite evosuite = new EvoSuite(); String targetClass = ClassWithPrivateInterfaces.class.getCanonicalName(); String testClass = ClassWithPrivateInterfacesTest.class.getCanonicalName(); Properties.TARGET_CLASS = targetClass; Properties.CRITERION = new Properties.Criterion[] { Properties.Criterion.LINE }; Properties.OUTPUT_VARIABLES = RuntimeVariable.Total_Goals + "," + RuntimeVariable.LineCoverage; Properties.STATISTICS_BACKEND = StatisticsBackend.CSV; Properties.COVERAGE_MATRIX = true; String[] command = new String[] { "-class", targetClass, "-Djunit=" + testClass, "-measureCoverage" }; Object statistics = evosuite.parseCommandLine(command); Assert.assertNotNull(statistics); // Assert coverage String statistics_file = System.getProperty("user.dir") + File.separator + Properties.REPORT_DIR + File.separator + "statistics.csv"; System.out.println("statistics_file: " + statistics_file); CSVReader reader = new CSVReader(new FileReader(statistics_file)); List<String[]> rows = reader.readAll(); assertTrue(rows.size() == 2); reader.close(); assertEquals("14", CsvJUnitData.getValue(rows, RuntimeVariable.Total_Goals.name())); assertEquals(0.93, Double.valueOf(CsvJUnitData.getValue(rows, RuntimeVariable.LineCoverage.name())), 0.01); // Assert that all test cases have passed String matrix_file = System.getProperty("user.dir") + File.separator + Properties.REPORT_DIR + File.separator + "data" + File.separator + targetClass + File.separator + Properties.Criterion.LINE.name() + File.separator + Properties.COVERAGE_MATRIX_FILENAME; System.out.println("matrix_file: " + matrix_file); List<String> lines = Files.readAllLines(FileSystems.getDefault().getPath(matrix_file)); assertTrue(lines.size() == 1); assertEquals(13 + 1 + 1, lines.get(0).replace(" ", "").length()); // number of goals + test result ('+' pass, '-' fail) assertTrue(lines.get(0).replace(" ", "").endsWith("+")); } @Test public void testHierarchyIncludingInterfaces() throws IOException { EvoSuite evosuite = new EvoSuite(); String targetClass = ClassHierarchyIncludingInterfaces.class.getCanonicalName(); String testClass = ClassHierarchyIncludingInterfacesTest.class.getCanonicalName(); Properties.TARGET_CLASS = targetClass; Properties.CRITERION = new Properties.Criterion[] { Properties.Criterion.LINE }; Properties.OUTPUT_VARIABLES = RuntimeVariable.Total_Goals + "," + RuntimeVariable.LineCoverage; Properties.STATISTICS_BACKEND = StatisticsBackend.CSV; Properties.COVERAGE_MATRIX = true; String[] command = new String[] { "-class", targetClass, "-Djunit=" + testClass, "-measureCoverage" }; Object statistics = evosuite.parseCommandLine(command); Assert.assertNotNull(statistics); // Assert coverage String statistics_file = System.getProperty("user.dir") + File.separator + Properties.REPORT_DIR + File.separator + "statistics.csv"; System.out.println("statistics_file: " + statistics_file); CSVReader reader = new CSVReader(new FileReader(statistics_file)); List<String[]> rows = reader.readAll(); assertTrue(rows.size() == 2); reader.close(); // The number of lines seems to be different depending on the compiler assertTrue( "Expected 32-34lines, but found: " + CsvJUnitData.getValue(rows, RuntimeVariable.Total_Goals.name()), CsvJUnitData.getValue(rows, RuntimeVariable.Total_Goals.name()).equals("32") || CsvJUnitData.getValue(rows, RuntimeVariable.Total_Goals.name()).equals("33") || CsvJUnitData.getValue(rows, RuntimeVariable.Total_Goals.name()).equals("34")); // Assert that all test cases have passed String matrix_file = System.getProperty("user.dir") + File.separator + Properties.REPORT_DIR + File.separator + "data" + File.separator + targetClass + File.separator + Properties.Criterion.LINE.name() + File.separator + Properties.COVERAGE_MATRIX_FILENAME; System.out.println("matrix_file: " + matrix_file); List<String> lines = Files.readAllLines(FileSystems.getDefault().getPath(matrix_file)); assertEquals(1, lines.size()); // The number of lines seems to be different depending on the compiler assertTrue("Expected lines to be 32-34, but got: " + (lines.get(0).replace(" ", "").length()), 34 - lines.get(0).replace(" ", "").length() <= 2); // number of goals + test result ('+' pass, '-' fail) assertTrue("Expected line to end with +, but line is: " + lines.get(0).replace(" ", ""), lines.get(0).replace(" ", "").endsWith("+")); } @Test public void testBindFilteredEventsToMethod() throws IOException { EvoSuite evosuite = new EvoSuite(); String targetClass = ClassPublicInterface.class.getCanonicalName(); String testClass = ClassPublicInterfaceTest.class.getCanonicalName(); Properties.TARGET_CLASS = targetClass; Properties.CRITERION = new Properties.Criterion[] { Properties.Criterion.LINE }; Properties.OUTPUT_VARIABLES = RuntimeVariable.Total_Goals + "," + RuntimeVariable.LineCoverage; Properties.STATISTICS_BACKEND = StatisticsBackend.CSV; Properties.COVERAGE_MATRIX = true; String[] command = new String[] { "-class", targetClass, "-Djunit=" + testClass, "-measureCoverage" }; SearchStatistics statistics = (SearchStatistics) evosuite.parseCommandLine(command); Assert.assertNotNull(statistics); Map<String, OutputVariable<?>> outputVariables = statistics.getOutputVariables(); // The number of lines seems to be different depending on the compiler assertTrue(27 - ((Integer) outputVariables.get(RuntimeVariable.Total_Goals.name()).getValue()) <= 1); assertTrue(11 - ((Integer) outputVariables.get(RuntimeVariable.Covered_Goals.name()).getValue()) <= 1); assertEquals(1, (Integer) outputVariables.get(RuntimeVariable.Tests_Executed.name()).getValue(), 0.0); // Assert that all test cases have passed String matrix_file = System.getProperty("user.dir") + File.separator + Properties.REPORT_DIR + File.separator + "data" + File.separator + targetClass + File.separator + Properties.Criterion.LINE.name() + File.separator + Properties.COVERAGE_MATRIX_FILENAME; System.out.println("matrix_file: " + matrix_file); List<String> lines = Files.readAllLines(FileSystems.getDefault().getPath(matrix_file)); assertTrue(lines.size() == 1); assertTrue(lines.get(0).replace(" ", "").endsWith("+")); } }