7903867: Add a test for RepGen

Reviewed-by: lkuskov

Author: shurymury

test/unit/com/sun/tdk/jcov/report/BasicReportTest.java

@@ -0,0 +1,114 @@
+/*
+ * Copyright (c) 2024, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.  Oracle designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Oracle in the LICENSE file that accompanied this code.
+ *
+ * This code 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 General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+package com.sun.tdk.jcov.report;
+
+import com.sun.tdk.jcov.Instr;
+import com.sun.tdk.jcov.RepGen;
+import com.sun.tdk.jcov.instrument.DataRoot;
+import com.sun.tdk.jcov.instrument.InstrumentationOptions;
+import com.sun.tdk.jcov.instrument.Util;
+import org.testng.annotations.AfterClass;
+import org.testng.annotations.BeforeClass;
+import org.testng.annotations.Test;
+
+import java.io.IOException;
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.nio.file.Paths;
+import java.util.ArrayList;
+import java.util.List;
+
+import static org.testng.Assert.assertTrue;
+
+public class BasicReportTest {
+    Path test_dir;
+    Path template;
+    Path result;
+    int method_slot = -1;
+
+    @BeforeClass
+    public void setup() throws Exception {
+        System.setProperty("jcov.selftest", "true");
+
+        Path data_dir = Paths.get(System.getProperty("user.dir"));
+
+        //clear
+        test_dir = data_dir.resolve("instr_test");
+        System.out.println("test dir = " + test_dir);
+        Util.rmRF(test_dir);
+
+        //prepare bytecode
+        List<Path> classFiles = new Util(test_dir).copyBytecode(BasicUserCode.class.getName());
+
+        //instrument
+        template = test_dir.resolve("template.xml");
+        List<String> params = new ArrayList<>();
+        params.add("-t");
+        params.add(template.toString());
+        params.add(classFiles.get(0).toString());
+        new Instr().run(params.toArray(new String[0]));
+
+        //run
+        new Util(test_dir).runClass(BasicUserCode.class, new String[] {});
+
+        //save coverage
+        result = test_dir.resolve("result.xml");
+        DataRoot.getInstance(0).write(result.toString(), InstrumentationOptions.MERGE.OVERWRITE);
+    }
+
+    @Test
+    void textReport() throws IOException {
+        Path report = test_dir.resolve("report.txt");
+        List<String> params = new ArrayList<>();
+        params.add("-format");
+        params.add("text");
+        params.add("-o");
+        params.add(report.toString());
+        params.add(result.toString());
+        new RepGen().run(params.toArray(new String[0]));
+        assertTrue(Files.isRegularFile(report));
+        assertTrue(Files.readAllLines(report).contains(
+                "MTH+: main([Ljava/lang/String;)V hits: 1 blocks:  75% (3/4); branches:  50% (1/2); lines:  75% (3/4);"
+        ));
+    }
+
+    @Test
+    void htmlReport() throws IOException {
+        Path report = test_dir.resolve("report.html");
+        List<String> params = new ArrayList<>();
+        params.add("-o");
+        params.add(report.toString());
+        params.add(result.toString());
+        new RepGen().run(params.toArray(new String[0]));
+        assertTrue(Files.isDirectory(report));
+        Path classHtml = report.resolve(BasicUserCode.class.getName().replace('.', '/') + ".html");
+        assertTrue(Files.readAllLines(classHtml).stream().anyMatch(l -> l.contains("<b>60</b>%(3/5)")));
+    }
+
+    @AfterClass
+    public void tearDown() throws IOException {
+        Util.rmRF(test_dir);
+    }
+}

test/unit/com/sun/tdk/jcov/report/BasicUserCode.java

@@ -0,0 +1,34 @@
+/*
+ * Copyright (c) 2024, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.  Oracle designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Oracle in the LICENSE file that accompanied this code.
+ *
+ * This code 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 General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+package com.sun.tdk.jcov.report;
+
+public class BasicUserCode {
+    public static void main(String[] args) {
+        if (args.length % 2 == 0)
+            System.out.println("even");
+        else
+            System.out.println("odd");
+    }
+}