add UiDevice.pressBack for convenience

Change-Id: Ifafeda79d9569d853948ac254d34cec66f896232

4 files changed, 10 insertions, 1 deletions

diff --git a/src/com/google/android/droiddriver/UiDevice.java b/src/com/google/android/droiddriver/UiDevice.java
index d55689a..84fea1b 100644
--- a/src/com/google/android/droiddriver/UiDevice.java
+++ b/src/com/google/android/droiddriver/UiDevice.java
@@ -35,6 +35,9 @@ public interface UiDevice {
   /** Puts device to sleep if the screen is on */
   void sleep();
 
+  /** Simulates pressing "back" button */
+  void pressBack();
+
   /**
    * Executes a global action without the context of a certain UiElement.
    *
diff --git a/src/com/google/android/droiddriver/actions/Action.java b/src/com/google/android/droiddriver/actions/Action.java
index 41d3f2c..86dfc24 100644
--- a/src/com/google/android/droiddriver/actions/Action.java
+++ b/src/com/google/android/droiddriver/actions/Action.java
@@ -32,7 +32,7 @@ public interface Action {
    * @param element the Ui element to perform the action on
    * @return Whether the action is successful. Some actions throw exceptions in
    *         case of failure, when that behavior is more appropriate. For
-   *         example, ClickAction.
+   *         example, if event injection returns false.
    */
   boolean perform(InputInjector injector, UiElement element);
 
diff --git a/src/com/google/android/droiddriver/base/BaseUiDevice.java b/src/com/google/android/droiddriver/base/BaseUiDevice.java
index 606bfcb..21e8aae 100644
--- a/src/com/google/android/droiddriver/base/BaseUiDevice.java
+++ b/src/com/google/android/droiddriver/base/BaseUiDevice.java
@@ -69,6 +69,11 @@ public abstract class BaseUiDevice implements UiDevice {
   }
 
   @Override
+  public void pressBack() {
+    perform(SingleKeyAction.BACK);
+  }
+
+  @Override
   public boolean perform(Action action) {
     return getContext().getDriver().getRootElement().perform(action);
   }
diff --git a/src/com/google/android/droiddriver/helpers/BaseDroidDriverTest.java b/src/com/google/android/droiddriver/helpers/BaseDroidDriverTest.java
index d22cee9..656d0f3 100644
--- a/src/com/google/android/droiddriver/helpers/BaseDroidDriverTest.java
+++ b/src/com/google/android/droiddriver/helpers/BaseDroidDriverTest.java
@@ -235,6 +235,7 @@ public abstract class BaseDroidDriverTest<T extends Activity> extends
         if (shouldSkipRemainingTests(exception) || runCount >= tolerance - 1) {
           throw exception;
         }
+        Logs.log(Log.WARN, exception);
       } catch (IllegalAccessException e) {
         e.fillInStackTrace();
         throw e;