From 990d05dc0fdd334e61446f14fb130088e05b21c1 Mon Sep 17 00:00:00 2001
From: Hans-Christoph Steiner <hans@eds.org>
Date: Tue, 14 Aug 2018 16:45:09 +0200
Subject: [PATCH] skip Espresso tests on ARM emulators

ARM emulators are too slow to run these tests in a useful way.  The
sad thing is that it would probably work if Android didn't put up the
ANR "Process system isn't responding" on boot each time.  There seems
to be no way to increase the ANR timeout.
---
 .../fdroid/MainActivityEspressoTest.java      | 25 +++++++++++++++++++
 1 file changed, 25 insertions(+)

diff --git a/app/src/androidTest/java/org/fdroid/fdroid/MainActivityEspressoTest.java b/app/src/androidTest/java/org/fdroid/fdroid/MainActivityEspressoTest.java
index 44034d45d..5f4871240 100644
--- a/app/src/androidTest/java/org/fdroid/fdroid/MainActivityEspressoTest.java
+++ b/app/src/androidTest/java/org/fdroid/fdroid/MainActivityEspressoTest.java
@@ -1,6 +1,7 @@
 package org.fdroid.fdroid;
 
 import android.app.Instrumentation;
+import android.os.Build;
 import android.support.test.InstrumentationRegistry;
 import android.support.test.espresso.IdlingPolicies;
 import android.support.test.espresso.ViewInteraction;
@@ -43,8 +44,21 @@ import static org.junit.Assert.assertTrue;
 public class MainActivityEspressoTest {
     public static final String TAG = "MainActivityEspressoTest";
 
+    /**
+     * ARM emulators are too slow to run these tests in a useful way.  The sad
+     * thing is that it would probably work if Android didn't put up the ANR
+     * "Process system isn't responding" on boot each time.  There seems to be no
+     * way to increase the ANR timeout.
+     */
     @BeforeClass
     public static void classSetUp() {
+        Log.i(TAG, "setUp " + isEmulator() + " " + Build.SUPPORTED_ABIS[0]);
+        if (Build.SUPPORTED_ABIS[0].startsWith("arm") && isEmulator()) {
+            Log.e(TAG, "SKIPPING TEST: ARM emulators are too slow to run these tests in a useful way");
+            org.junit.Assume.assumeTrue(false);
+            return;
+        }
+
         IdlingPolicies.setIdlingResourceTimeout(10, TimeUnit.MINUTES);
         IdlingPolicies.setMasterPolicyTimeout(10, TimeUnit.MINUTES);
         Instrumentation instrumentation = InstrumentationRegistry.getInstrumentation();
@@ -64,6 +78,17 @@ public class MainActivityEspressoTest {
         SystemAnimations.enableAll(InstrumentationRegistry.getTargetContext());
     }
 
+    public static boolean isEmulator() {
+        return Build.FINGERPRINT.startsWith("generic")
+                || Build.FINGERPRINT.startsWith("unknown")
+                || Build.MODEL.contains("google_sdk")
+                || Build.MODEL.contains("Emulator")
+                || Build.MODEL.contains("Android SDK built for x86")
+                || Build.MANUFACTURER.contains("Genymotion")
+                || (Build.BRAND.startsWith("generic") && Build.DEVICE.startsWith("generic"))
+                || "google_sdk".equals(Build.PRODUCT);
+    }
+
     @Rule
     public ActivityTestRule<MainActivity> activityTestRule =
             new ActivityTestRule<>(MainActivity.class);