test refactor - extract common FeedItemEventListener test helper.

1 files changed, 46 insertions, 0 deletions

diff --git a/app/src/androidTest/java/de/test/antennapod/util/feed/FeedItemEventListener.java b/app/src/androidTest/java/de/test/antennapod/util/feed/FeedItemEventListener.java
new file mode 100644
index 000000000..ef371e39b
--- /dev/null
+++ b/app/src/androidTest/java/de/test/antennapod/util/feed/FeedItemEventListener.java
@@ -0,0 +1,46 @@
+package de.test.antennapod.util.feed;
+
+import android.support.annotation.NonNull;
+
+import org.greenrobot.eventbus.EventBus;
+import org.greenrobot.eventbus.Subscribe;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import de.danoeh.antennapod.core.event.FeedItemEvent;
+import io.reactivex.functions.Consumer;
+
+/**
+ * Test helpers to listen {@link FeedItemEvent} and handle them accordingly
+ *
+ */
+public class FeedItemEventListener {
+    private final List<FeedItemEvent> events = new ArrayList<>();
+
+    /**
+     * Provides an listener subscribing to {@link FeedItemEvent} that the callers can use
+     *
+     * Note: it uses RxJava's version of {@link Consumer} because it allows exceptions to be thrown.
+     */
+    public static void withFeedItemEventListener(@NonNull Consumer<FeedItemEventListener> consumer)
+            throws Exception {
+        FeedItemEventListener feedItemEventListener = new FeedItemEventListener();
+        try {
+            EventBus.getDefault().register(feedItemEventListener);
+            consumer.accept(feedItemEventListener);
+        } finally {
+            EventBus.getDefault().unregister(feedItemEventListener);
+        }
+    }
+
+    @Subscribe
+    public void onEvent(FeedItemEvent event) {
+        events.add(event);
+    }
+
+    @NonNull
+    public List<? extends FeedItemEvent> getEvents() {
+        return events;
+    }
+}