1) created a new build flavor for espresso tests

2) create a new source set full of espresso tests
3) updated proguard-testing.pro
4) added test device numbers to .gitignore

// FREEBIE

test/androidTestEspresso/java/org/thoughtcrime/securesms/ViewLocalIdentityActivityTest.java

@@ -0,0 +1,48 @@
+/**
+ * Copyright (C) 2015 Open Whisper Systems
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+package org.thoughtcrime.securesms;
+
+import android.support.test.espresso.matcher.ViewMatchers;
+import android.test.suitebuilder.annotation.LargeTest;
+
+import org.thoughtcrime.securesms.crypto.IdentityKeyUtil;
+import org.whispersystems.libaxolotl.IdentityKey;
+
+import static android.support.test.espresso.Espresso.onView;
+import static android.support.test.espresso.assertion.ViewAssertions.matches;
+import static android.support.test.espresso.matcher.ViewMatchers.withText;
+
+@LargeTest
+public class ViewLocalIdentityActivityTest extends TextSecureEspressoTestCase<ConversationListActivity> {
+
+  public ViewLocalIdentityActivityTest() {
+    super(ConversationListActivity.class);
+  }
+
+  private void clickMyIdentity() throws Exception {
+    loadActivity(ConversationListActivity.class, STATE_REGISTRATION_SKIPPED);
+    ConversationListActivityActions.clickMyIdentity(getContext());
+    EspressoUtil.waitOn(ViewLocalIdentityActivity.class);
+  }
+
+  public void testLayout() throws Exception {
+    clickMyIdentity();
+    final IdentityKey idKey = IdentityKeyUtil.getIdentityKey(getContext());
+    onView(ViewMatchers.withId(R.id.identity_fingerprint)).check(matches(withText(idKey.getFingerprint())));
+  }
+
+}