Add tests for ProjectBranches

sonar-scanner-engine/src/test/java/org/sonar/scanner/scan/branch/ProjectBranchesTest.java

@@ -0,0 +1,76 @@
+/*
+ * SonarQube
+ * Copyright (C) 2009-2018 SonarSource SA
+ * mailto:info AT sonarsource DOT com
+ *
+ * This program 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.
+ *
+ * This program 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.scanner.scan.branch;
+
+import com.tngtech.java.junit.dataprovider.DataProvider;
+import com.tngtech.java.junit.dataprovider.DataProviderRunner;
+import com.tngtech.java.junit.dataprovider.UseDataProvider;
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.Collections;
+import java.util.List;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+
+import static org.assertj.core.api.Assertions.*;
+import static org.assertj.core.api.Assertions.assertThat;
+
+@RunWith(DataProviderRunner.class)
+public class ProjectBranchesTest {
+
+  private static final BranchInfo mainBranch = new BranchInfo("main", BranchType.LONG, true, null);
+  private static final BranchInfo shortBranch = new BranchInfo("short", BranchType.SHORT, false, null);
+  private static final BranchInfo longBranch = new BranchInfo("long", BranchType.LONG, false, null);
+  private static final BranchInfo pullRequest = new BranchInfo("pull-request", BranchType.PULL_REQUEST, false, null);
+
+  private static final List<BranchInfo> nonMainBranches = Arrays.asList(shortBranch, longBranch, pullRequest);
+
+  private static final List<BranchInfo> allBranches = Arrays.asList(shortBranch, longBranch, pullRequest, mainBranch);
+
+  private final ProjectBranches underTest = new ProjectBranches(allBranches);
+
+  @Test
+  public void defaultBranchName() {
+    for (int i = 0; i <= nonMainBranches.size(); i++) {
+      List<BranchInfo> branches = new ArrayList<>(nonMainBranches);
+      branches.add(i, mainBranch);
+      assertThat(new ProjectBranches(branches).defaultBranchName()).isEqualTo(mainBranch.name());
+    }
+  }
+
+  @Test
+  @UseDataProvider("branchNamesAndBranches")
+  public void get(String branchName, BranchInfo branchInfo) {
+    assertThat(underTest.get(branchName)).isEqualTo(branchInfo);
+  }
+
+  @DataProvider
+  public static Object[][] branchNamesAndBranches() {
+    return allBranches.stream()
+      .map(b -> new Object[]{b.name(), b})
+      .toArray(Object[][]::new);
+  }
+
+  @Test
+  public void isEmpty() {
+    assertThat(underTest.isEmpty()).isFalse();
+    assertThat(new ProjectBranches(Collections.emptyList()).isEmpty()).isTrue();
+  }
+}