Add unit test for Java CPD Engine

diff --git a/sonar-batch/src/test/java/org/sonar/batch/cpd/JavaCpdEngineTest.java b/sonar-batch/src/test/java/org/sonar/batch/cpd/JavaCpdEngineTest.java
new file mode 100644 (file)
index 0000000..798f821
--- /dev/null
+++ b/sonar-batch/src/test/java/org/sonar/batch/cpd/JavaCpdEngineTest.java
@@ -0,0 +1,91 @@
+/*
+ * SonarQube, open source software quality management tool.
+ * Copyright (C) 2008-2014 SonarSource
+ * mailto:contact AT sonarsource DOT com
+ *
+ * SonarQube 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 of the License, or (at your option) any later version.
+ *
+ * SonarQube 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 program; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+ */
+package org.sonar.batch.cpd;
+
+import java.io.File;
+import org.apache.commons.io.FileUtils;
+import org.junit.Rule;
+import org.junit.Test;
+import org.junit.rules.TemporaryFolder;
+import org.sonar.api.batch.fs.internal.DefaultFileSystem;
+import org.sonar.api.batch.fs.internal.DefaultInputFile;
+import org.sonar.api.batch.sensor.SensorContext;
+import org.sonar.api.config.Settings;
+import org.sonar.batch.index.BatchComponentCache;
+import org.sonar.batch.protocol.output.BatchReport;
+import org.sonar.batch.protocol.output.BatchReport.Duplication;
+import org.sonar.batch.protocol.output.BatchReportReader;
+import org.sonar.batch.protocol.output.BatchReportWriter;
+import org.sonar.batch.report.ReportPublisher;
+import org.sonar.core.util.CloseableIterator;
+
+import static org.assertj.core.api.Assertions.assertThat;
+import static org.mockito.Mockito.mock;
+import static org.mockito.Mockito.when;
+
+public class JavaCpdEngineTest {
+
+  private static final String JAVA = "java";
+  @Rule
+  public TemporaryFolder temp = new TemporaryFolder();
+
+  @Test
+  public void testJavaCodeWithTwoCloneGroupAtSameLines() throws Exception {
+
+    File baseDir = temp.newFolder();
+    DefaultFileSystem fs = new DefaultFileSystem(baseDir);
+    DefaultInputFile file = new DefaultInputFile("foo", "src/ManyStatements.java").setLanguage(JAVA);
+    fs.add(file);
+    BatchComponentCache batchComponentCache = new BatchComponentCache();
+    batchComponentCache.add(org.sonar.api.resources.File.create("src/Foo.java").setEffectiveKey("foo:src/ManyStatements.java"), null).setInputComponent(file);
+    File ioFile = file.file();
+    FileUtils.copyURLToFile(this.getClass().getResource("ManyStatements.java"), ioFile);
+
+    File reportOut = temp.newFolder();
+    ReportPublisher reportPublisher = mock(ReportPublisher.class);
+    when(reportPublisher.getWriter()).thenReturn(new BatchReportWriter(reportOut));
+    JavaCpdEngine engine = new JavaCpdEngine(fs, new Settings(), reportPublisher, batchComponentCache);
+    engine.analyse(JAVA, mock(SensorContext.class));
+
+    BatchReportReader reader = new BatchReportReader(reportOut);
+    try (CloseableIterator<BatchReport.Duplication> it = reader.readComponentDuplications(1)) {
+      Duplication dupGroup1 = it.next();
+      Duplication dupGroup2 = it.next();
+
+      assertThat(dupGroup1.getOriginPosition().getStartLine()).isEqualTo(6);
+      assertThat(dupGroup1.getOriginPosition().getEndLine()).isEqualTo(6);
+      assertThat(dupGroup1.getDuplicateCount()).isEqualTo(1);
+      assertThat(dupGroup1.getDuplicate(0).getRange().getStartLine()).isEqualTo(8);
+      assertThat(dupGroup1.getDuplicate(0).getRange().getEndLine()).isEqualTo(8);
+
+      assertThat(dupGroup2.getOriginPosition().getStartLine()).isEqualTo(6);
+      assertThat(dupGroup2.getOriginPosition().getEndLine()).isEqualTo(6);
+      assertThat(dupGroup2.getDuplicateCount()).isEqualTo(2);
+      assertThat(dupGroup2.getDuplicate(0).getRange().getStartLine()).isEqualTo(7);
+      assertThat(dupGroup2.getDuplicate(0).getRange().getEndLine()).isEqualTo(7);
+      assertThat(dupGroup2.getDuplicate(1).getRange().getStartLine()).isEqualTo(8);
+      assertThat(dupGroup2.getDuplicate(1).getRange().getEndLine()).isEqualTo(8);
+    } catch (Exception e) {
+      throw new IllegalStateException(e);
+    }
+
+  }
+
+}

diff --git a/sonar-batch/src/test/resources/org/sonar/batch/cpd/ManyStatements.java b/sonar-batch/src/test/resources/org/sonar/batch/cpd/ManyStatements.java
new file mode 100644 (file)
index 0000000..ed22970
--- /dev/null
+++ b/sonar-batch/src/test/resources/org/sonar/batch/cpd/ManyStatements.java
@@ -0,0 +1,11 @@
+package org.foo;
+
+public class ManyStatements {
+  
+  void foo() {
+    int A1 = 0; int B = 0; int C = 0; int D = 0; int E = 0; int F = 0; int G = 0; int H = 0; int I = 0; int J = 0; int K = 0;
+    int A2 = 0; int B = 0; int C = 0; int D = 0; int E = 0; int F = 0; int G = 0; int H = 0; int I = 0; int J = 0; int K = 0; 
+    int A1 = 0; int B = 0; int C = 0; int D = 0; int E = 0; int F = 0; int G = 0; int H = 0; int I = 0; int J = 0; int K = 0; 
+  }
+
+}
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