Add simple benchmark & a test framework (#2022)

See #2019, #2020 and #2021 for failed attempts at using a benchmark framework. So, for now I'll just go with timing the results manually. 

For trying this out:
- Backup your current account first, maybe there are some bugs in switching accounts.
- You can run benchmarks on either an emulated device or a real device. For better benchmark results, you should run the benchmark on a real device and make sure that the core is compiled in release mode.
- Disable animations on your device, otherwise the test may fail. (Developer options -> Window animation scale, Transition animation scale & Animatior duration scale -> set all three of them to 0x)
- In Android Studio: File -> Sync project with gradle files
- In Android Studio: Run -> Edit configurations -> `+` -> Android Instrumented test -> Either select a specific class or select "All in Module" -> OK -> Select your configuration in the toolbar -> Click on the green "run" button in the toolbar to run the tests

When the benchmark is done, you will get a result like `MEASURED RESULTS (Benchmark) - Going thorough all 10 chats: 11635,11207,11363,11352,11279,11183,11137,11145,11032,11057`, Paste `11635,11207,11363,11352,11279,11183,11137,11145,11032,11057` into a cell in a LibreOffice spreadsheet, do `Data -> Text to columns`, choose `,` as a separator, hit `OK`, and create a diagram.

README.md

@@ -155,6 +155,32 @@ environment.
    `export PATH=$PATH:$ANDROID_NDK`.
 
 
+# Run UI Tests and Benchmarks
+
+- You don't necessarily need a dedicated testing device.
+  Backup your current account first, maybe there are some bugs in switching accounts.
+
+- You can run benchmarks on either an emulated device or a real device.
+  You need at least Android 9. For better benchmark results,
+  you should run the benchmark on a real device and make sure that the core is compiled in release mode.
+
+- Disable animations on your device, otherwise the test may fail:
+  at "Developer options"
+  set all of "Window animation scale", "Transition animation scale" and "Animatior duration scale" to 0x
+
+- In Android Studio: "File" / "Sync project with gradle files"
+
+- In Android Studio: "Run" / "Edit configurations" / "+" / "Android Instrumented test":
+  Either select a specific class or select "All in Module" / "OK" /
+  Select your configuration in the toolbar / Click on the green "run" button in the toolbar to run the tests
+
+When the benchmark is done, you will get a result like
+`MEASURED RESULTS (Benchmark) - Going thorough all 10 chats: 11635,11207,11363,11352,11279,11183,11137,11145,11032,11057`.
+You can paste `11635,11207,11363,11352,11279,11183,11137,11145,11032,11057`
+into a cell in a LibreOffice spreadsheet, do "Data" / "Text to columns",
+choose `,` as a separator, hit "OK", and create a diagram.
+
+
 # Credits
 
 The user interface classes are based on the Signal messenger.

androidTest/com/b44t/messenger/EnterChatsBenchmark.java

@@ -0,0 +1,144 @@
+package com.b44t.messenger;
+
+import android.content.ComponentName;
+import android.content.Context;
+import android.content.Intent;
+import android.util.Log;
+
+import androidx.test.espresso.contrib.RecyclerViewActions;
+import androidx.test.ext.junit.rules.ActivityScenarioRule;
+import androidx.test.ext.junit.runners.AndroidJUnit4;
+import androidx.test.filters.LargeTest;
+
+import org.junit.After;
+import org.junit.Rule;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.thoughtcrime.securesms.ConversationListActivity;
+import org.thoughtcrime.securesms.R;
+import org.thoughtcrime.securesms.connect.AccountManager;
+import org.thoughtcrime.securesms.connect.DcHelper;
+import org.thoughtcrime.securesms.util.Prefs;
+
+import static androidx.test.espresso.Espresso.onView;
+import static androidx.test.espresso.Espresso.pressBack;
+import static androidx.test.espresso.action.ViewActions.click;
+import static androidx.test.espresso.action.ViewActions.replaceText;
+import static androidx.test.espresso.action.ViewActions.typeText;
+import static androidx.test.espresso.matcher.ViewMatchers.withContentDescription;
+import static androidx.test.espresso.matcher.ViewMatchers.withHint;
+import static androidx.test.espresso.matcher.ViewMatchers.withId;
+import static androidx.test.espresso.matcher.ViewMatchers.withText;
+import static androidx.test.platform.app.InstrumentationRegistry.getInstrumentation;
+
+
+@RunWith(AndroidJUnit4.class)
+@LargeTest
+public class EnterChatsBenchmark {
+
+  // ==============================================================================================
+  // Set this to true if you already have at least 10 chats on your existing DeltaChat installation
+  // and want to traverse through them instead of 10 newly created chats
+  private final static boolean USE_EXISTING_CHATS = false;
+  // ==============================================================================================
+  private final static int GO_THROUGH_ALL_CHATS_N_TIMES = 8;
+
+  // ==============================================================================================
+  // PLEASE BACKUP YOUR ACCOUNT BEFORE RUNNING THIS!
+  // ==============================================================================================
+
+  private final static String TAG = EnterChatsBenchmark.class.getSimpleName();
+
+  @Rule
+  public ActivityScenarioRule<ConversationListActivity> activityRule = new ActivityScenarioRule<>(getConversationsListIntent());
+
+  private Intent getConversationsListIntent() {
+    Intent intent =
+            Intent.makeMainActivity(
+                    new ComponentName(getInstrumentation().getTargetContext(), ConversationListActivity.class));
+    if (!USE_EXISTING_CHATS) {
+      Context context = getInstrumentation().getTargetContext();
+      AccountManager.getInstance().beginAccountCreation(context);
+      DcContext c = DcHelper.getContext(context);
+      c.setConfig("configured_addr", "alice@example.org");
+      c.setConfig("configured_mail_pw", "abcd");
+      c.setConfig("configured", "1");
+    }
+    return intent;
+  }
+
+  @Test
+  public void createAndEnterNChats() {
+    Prefs.setEnterSendsEnabled(getInstrumentation().getTargetContext(), true);
+
+    if (!USE_EXISTING_CHATS) {
+      createChatAndGoBack("Group #1", "Hello!", "Some links: https://testrun.org", "And a command: /help");
+      createChatAndGoBack("Group #2", "example.org, alice@example.org", "aaaaaaa", "bbbbbb");
+      createChatAndGoBack("Group #3", repeat("Some string ", 600), repeat("Another string", 200), "Hi!!!");
+      createChatAndGoBack("Group #4", "xyzabc", "Hi!!!!", "Let's meet!");
+      createChatAndGoBack("Group #5", repeat("aaaa", 40), "bbbbbbbbbbbbbbbbbb", "ccccccccccccccc");
+      createChatAndGoBack("Group #6", "aaaaaaaaaaa", repeat("Hi! ", 1000), "bbbbbbbbbb");
+      createChatAndGoBack("Group #7", repeat("abcdefg ", 500), repeat("xxxxx", 100), "yrrrrrrrrrrrrr");
+      createChatAndGoBack("Group #8", "and a number: 037362/384756", "ccccc", "Nice!");
+      createChatAndGoBack("Group #9", "ddddddddddddddddd", "zuuuuuuuuuuuuuuuu", "ccccc");
+      createChatAndGoBack("Group #10", repeat("xxxxxxyyyyy", 100), repeat("String!!", 10), "abcd");
+    }
+
+    String[] times = new String[GO_THROUGH_ALL_CHATS_N_TIMES];
+    for (int i = 0; i<GO_THROUGH_ALL_CHATS_N_TIMES; i++) {
+      times[i] = "" + timeGoToAllChats();
+    }
+    Log.i(TAG, "MEASURED RESULTS (Benchmark) - Going thorough all 10 chats: " + String.join(",", times));
+  }
+
+  private long timeGoToAllChats() {
+    long start = System.currentTimeMillis();
+    for (int i=0; i<10; i++) {
+      onView(withId(R.id.list)).perform(RecyclerViewActions.actionOnItemAtPosition(i, click()));
+      pressBack();
+    }
+    long diff = System.currentTimeMillis() - start;
+    Log.i(TAG, "Measured (Benchmark): Going through all chats took " + diff + "ms");
+    return diff;
+  }
+
+  private String repeat(String string, int n) {
+    StringBuilder s = new StringBuilder();
+    for (int i = 0; i < n; i++) {
+      s.append(string);
+    }
+    return s.toString();
+  }
+
+  private void createChatAndGoBack(String groupName, String text1, String text2, String text3) {
+    onView(withId(R.id.fab)).perform(click());
+    onView(withText(R.string.menu_new_group)).perform(click());
+    onView(withHint(R.string.group_name)).perform(replaceText(groupName));
+    onView(withContentDescription(R.string.group_create_button)).perform(click());
+    sendText(text1);
+    sendText(text2);
+    sendText(text3);
+    sendText(text1);
+    sendText(text2);
+    sendText(text3);
+
+    pressBack();
+    pressBack();
+  }
+
+  private void sendText(String text1) {
+    onView(withHint(R.string.chat_input_placeholder)).perform(replaceText(text1));
+    onView(withHint(R.string.chat_input_placeholder)).perform(typeText("\n"));
+  }
+
+  @After
+  public void removeMockAccount() {
+    if (!USE_EXISTING_CHATS) {
+      Context context = getInstrumentation().getTargetContext();
+      DcAccounts accounts = DcHelper.getAccounts(context);
+
+      DcContext selectedAccount = accounts.getSelectedAccount();
+      accounts.removeAccount(selectedAccount.getAccountId());
+    }
+  }
+}

build.gradle

@@ -75,6 +75,13 @@ dependencies {
     testImplementation 'org.powermock:powermock-module-junit4-rule:1.6.1'
     testImplementation 'org.powermock:powermock-classloading-xstream:1.6.1'
 
+    androidTestImplementation 'androidx.test:runner:1.2.0'
+    androidTestImplementation 'androidx.test.espresso:espresso-core:3.3.0'
+    androidTestImplementation 'androidx.test.espresso:espresso-contrib:3.3.0'
+    androidTestImplementation 'androidx.test:rules:1.2.0'
+    androidTestImplementation 'androidx.test.ext:junit:1.1.1'
+    androidTestImplementation 'com.android.support:support-annotations:24.0.0'
+
     androidTestImplementation ('org.assertj:assertj-core:1.7.1') {
         exclude group: 'org.hamcrest', module: 'hamcrest-core'
     }
@@ -111,6 +118,8 @@ android {
         ndk {
             abiFilters "armeabi-v7a", "arm64-v8a", "x86", "x86_64"
         }
+
+        testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
     }
 
     compileOptions {
@@ -197,8 +206,8 @@ android {
             assets.srcDirs = ['assets']
             jniLibs.srcDirs = ['libs']
         }
-        test {
-            java.srcDirs = ['test']
+        androidTest {
+            java.srcDirs = ['androidTest']
         }
     }
 

src/org/thoughtcrime/securesms/PassphraseRequiredActionBarActivity.java

@@ -2,11 +2,12 @@ package org.thoughtcrime.securesms;
 
 import android.content.Intent;
 import android.os.Bundle;
+import android.util.Log;
+
 import androidx.annotation.IdRes;
 import androidx.annotation.NonNull;
 import androidx.annotation.Nullable;
 import androidx.fragment.app.Fragment;
-import android.util.Log;
 
 import org.thoughtcrime.securesms.connect.DcHelper;
 import org.thoughtcrime.securesms.service.GenericForegroundService;

src/org/thoughtcrime/securesms/connect/AccountManager.java

@@ -3,10 +3,7 @@ package org.thoughtcrime.securesms.connect;
 import android.app.Activity;
 import android.content.Context;
 import android.content.Intent;
-import android.content.SharedPreferences;
 import android.preference.PreferenceManager;
-import android.util.Log;
-import android.widget.Toast;
 
 import androidx.annotation.Nullable;
 import androidx.appcompat.app.AlertDialog;
@@ -19,7 +16,6 @@ import org.thoughtcrime.securesms.ConversationListActivity;
 import org.thoughtcrime.securesms.R;
 import org.thoughtcrime.securesms.WelcomeActivity;
 import org.thoughtcrime.securesms.notifications.NotificationCenter;
-import org.thoughtcrime.securesms.util.Prefs;
 import org.thoughtcrime.securesms.util.task.ProgressDialogAsyncTask;
 
 import java.io.File;
@@ -87,7 +83,7 @@ public class AccountManager {
 
     // add accounts
 
-    private void beginAccountCreation(Context context) {
+    public void beginAccountCreation(Context context) {
         DcHelper.getAccounts(context).addAccount();
         resetDcContext(context);
     }

src/org/thoughtcrime/securesms/util/Prefs.java

@@ -8,11 +8,11 @@ import android.net.Uri;
 import android.preference.PreferenceManager;
 import android.provider.ContactsContract;
 import android.provider.Settings;
+
 import androidx.annotation.NonNull;
 import androidx.annotation.Nullable;
 import androidx.core.app.NotificationCompat;
 
-import com.b44t.messenger.DcChat;
 import com.b44t.messenger.DcContext;
 import com.mapbox.mapboxsdk.geometry.LatLng;
 
@@ -121,6 +121,10 @@ public class Prefs {
     return getBooleanPreference(context, IN_THREAD_NOTIFICATION_PREF, true);
   }
 
+  public static void setEnterSendsEnabled(Context context, boolean value) {
+    setBooleanPreference(context, ENTER_SENDS_PREF, value);
+  }
+
   public static boolean isEnterSendsEnabled(Context context) {
     return getBooleanPreference(context, ENTER_SENDS_PREF, false);
   }

src/org/thoughtcrime/securesms/util/ViewUtil.java

@@ -137,6 +137,9 @@ public class ViewUtil {
     final SettableFuture future = new SettableFuture();
     if (view.getVisibility() == visibility) {
       future.set(true);
+    } else if (AccessibilityUtil.areAnimationsDisabled(view.getContext())) {
+      view.setVisibility(visibility);
+      future.set(true);
     } else {
       view.clearAnimation();
       animation.reset();
@@ -162,6 +165,11 @@ public class ViewUtil {
   public static void animateIn(final @NonNull View view, final @NonNull Animation animation) {
     if (view.getVisibility() == View.VISIBLE) return;
 
+    if (AccessibilityUtil.areAnimationsDisabled(view.getContext())) {
+      view.setVisibility(View.VISIBLE);
+      return;
+    }
+
     view.clearAnimation();
     animation.reset();
     animation.setStartTime(0);