Define default web server port for GitHub tests.

plugins/git4idea/test-stepdefs/git4idea/GitCucumberWorld.java

@@ -137,7 +137,6 @@ public class GitCucumberWorld {
   @Before("@remote")
   @Order(1)
   public void setUpRemoteOperations() {
-    // default port will be occupied by main idea instance => define the custom default to avoid searching of free port
     GitTestUtil.setDefaultBuiltInServerPort();
     myHttpAuthService = (GitHttpAuthTestService)ServiceManager.getService(GitHttpAuthService.class);
   }

plugins/git4idea/testFramework/git4idea/test/GitTestUtil.java

@@ -128,6 +128,9 @@ public class GitTestUtil {
     Assert.assertEquals("Notification has wrong content", expected.getContent(), actualNotification.getContent());
   }
 
+  /**
+   * Default port will be occupied by main idea instance => define the custom default to avoid searching of free port
+   */
   public static void setDefaultBuiltInServerPort() {
     System.setProperty(BuiltInServerManagerImpl.PROPERTY_RPC_PORT, "64463");
   }

plugins/github/github-test/test/org/jetbrains/plugins/github/test/GithubTest.java

@@ -26,6 +26,7 @@ import git4idea.DialogManager;
 import git4idea.Notificator;
 import git4idea.config.GitVcsSettings;
 import git4idea.test.GitExecutor;
+import git4idea.test.GitTestUtil;
 import git4idea.test.TestDialogManager;
 import git4idea.test.TestNotificator;
 import org.jetbrains.annotations.NotNull;
@@ -65,6 +66,7 @@ public abstract class GithubTest extends UsefulTestCase {
   @SuppressWarnings({"JUnitTestCaseWithNonTrivialConstructors", "UnusedDeclaration"})
   protected GithubTest() {
     System.setProperty(PlatformUtilsCore.PLATFORM_PREFIX_KEY, "PlatformLangXml");
+    GitTestUtil.setDefaultBuiltInServerPort();
   }
 
   @Override