Espresso test case to control loopback call

webrtc/examples/BUILD.gn

Index: webrtc/examples/BUILD.gn
diff --git a/webrtc/examples/BUILD.gn b/webrtc/examples/BUILD.gn
index cf0c19525adc08ba1b83af2ecb86f840e50b7df6..428498d1edd267eb6b9428e00793118a5a20d0cf 100644
--- a/webrtc/examples/BUILD.gn
+++ b/webrtc/examples/BUILD.gn
@@ -25,6 +25,7 @@ group("examples") {
     public_deps += [
       ":AppRTCMobile",
       ":AppRTCMobileTest",
+      ":AppRTCMobileTestStubbedVideoIO",
     ]
   }
 
@@ -126,6 +127,29 @@ if (is_android) {
       "//webrtc/examples/androidtests/src/org/appspot/apprtc/test/capturetestvideo.y4m",
     ]
   }
+
+  instrumentation_test_apk("AppRTCMobileTestStubbedVideoIO") {
+    apk_name = "AppRTCMobileTestStubbedVideoIO"
+    android_manifest = "androidtests/AndroidManifest.xml"
+
+    java_files = [ "androidtests/src/org/appspot/apprtc/test/ConnectActivityStubbedInputOutputTest.java" ]
+
+    apk_under_test = ":AppRTCMobile"
+
+    deps = [
+      ":AppRTCMobile_javalib",
+      "//third_party/android_support_test_runner:rules_java",
+      "//third_party/android_support_test_runner:runner_java",
+      "//third_party/espresso:espresso_all_java",
+      "//third_party/hamcrest:hamcrest_java",
+      "//third_party/junit",
+      "//webrtc/sdk/android:libjingle_peerconnection_java",
+    ]
+
+    data = [
+      "//resources/reference_video_640x360_30fps.y4m",
+    ]
+  }
 }
 
 if (is_ios || (is_mac && target_cpu != "x86")) {