Implemented some basic tests with the first-run dialog

androidTest/java/org/aprsdroid/app/FirstRunDialog.java

@@ -0,0 +1,116 @@
+package org.aprsdroid.app;
+
+import static androidx.test.espresso.Espresso.onView;
+import static androidx.test.espresso.action.ViewActions.click;
+import static androidx.test.espresso.action.ViewActions.typeText;
+import static androidx.test.espresso.assertion.ViewAssertions.doesNotExist;
+import static androidx.test.espresso.assertion.ViewAssertions.matches;
+import static androidx.test.espresso.matcher.RootMatchers.isDialog;
+import static androidx.test.espresso.matcher.ViewMatchers.hasDescendant;
+import static androidx.test.espresso.matcher.ViewMatchers.isCompletelyDisplayed;
+import static androidx.test.espresso.matcher.ViewMatchers.isRoot;
+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 org.hamcrest.core.AllOf.allOf;
+import static org.hamcrest.core.StringContains.containsString;
+
+import android.content.Context;
+import android.content.SharedPreferences;
+
+import androidx.test.espresso.Espresso;
+import androidx.test.ext.junit.rules.ActivityScenarioRule;
+import androidx.test.ext.junit.runners.AndroidJUnit4;
+import androidx.test.platform.app.InstrumentationRegistry;
+
+import org.junit.Assert;
+import org.junit.Rule;
+import org.junit.Test;
+import org.junit.rules.RuleChain;
+import org.junit.runner.RunWith;
+
+import scala.Int;
+
+@RunWith(AndroidJUnit4.class)
+public class FirstRunDialog {
+    private final String pref_callsign = "callsign";
+    private final String pref_passcode = "passcode";
+    public ActivityScenarioRule activityRule = new ActivityScenarioRule<>(LogActivity.class);
+    public SharedPreferencesRule prefsRule = new SharedPreferencesRule() {
+        @Override
+        protected void modifyPreferences(SharedPreferences preferences) {
+            preferences.edit().clear().commit();
+        }
+    };
+    @Rule
+    public RuleChain rules = RuleChain.outerRule(prefsRule).around(activityRule);
+
+    @Test
+    public void givenAFirstTimeRun_whenProvidedABadPasscode_ThenDialogStaysOpen() {
+        onView(isRoot())
+                .inRoot(isDialog())
+                .check(matches(allOf(
+                        hasDescendant(withText(containsString("Welcome to APRSdroid"))),
+                        hasDescendant(withId(R.id.callsign)),
+                        hasDescendant(withId(R.id.passcode)))));
+        onView(withId(R.id.callsign))
+                .check(matches(withHint(containsString("Callsign"))))
+                .perform(typeText("XA1AAA"));
+        onView(withId(R.id.passcode))
+                .check(matches(withHint(containsString("Passcode"))))
+                .perform(typeText("12345"));
+        onView(withId(android.R.id.button1)).perform(click());  // OK Button
+        onView(isRoot())
+                .inRoot(isDialog())
+                .check(matches(allOf(
+                        hasDescendant(withText(containsString("Welcome to APRSdroid"))),
+                        hasDescendant(withId(R.id.callsign)),
+                        hasDescendant(withId(R.id.passcode)))));
+        try {
+            Thread.sleep(5000);
+        } catch (InterruptedException ex) {
+        }
+        Assert.assertTrue(true);
+    }
+
+    @Test
+    public void givenAFirstTimeRun_whenProvidedAGoodPasscode_ThenDialogCloses() {
+        onView(isRoot())
+                .inRoot(isDialog())
+                .check(matches(allOf(
+                        hasDescendant(withText(containsString("Welcome to APRSdroid"))),
+                        hasDescendant(withId(R.id.callsign)),
+                        hasDescendant(withId(R.id.passcode)))));
+        onView(withId(R.id.callsign))
+                .check(matches(withHint(containsString("Callsign"))))
+                .perform(typeText("XA1AAA"));
+        onView(withId(R.id.passcode))
+                .check(matches(withHint(containsString("Passcode"))))
+                .perform(typeText("23459"));
+        onView(withId(android.R.id.button1)).perform(click());  // OK Button
+        onView(allOf(
+                isRoot(),
+                hasDescendant(withText(containsString("Welcome to APRSdroid"))),
+                hasDescendant(withId(R.id.callsign)),
+                hasDescendant(withId(R.id.passcode))))
+                .check(doesNotExist());
+    }
+
+    @Test
+    public void givenAFirstTimeRun_whenProvidedAGoodPasscode_ThenPrefsSaved() {
+        String expected_callsign = "XA1AAA";
+        String expected_passcode = "23459";
+        SharedPreferences prefs = prefsRule.getPreferences();
+        Assert.assertNull("Callsign", prefs.getString(pref_callsign, null));
+        Assert.assertNull("Passcode", prefs.getString(pref_passcode, null));
+        onView(withId(R.id.callsign))
+                .check(matches(withHint(containsString("Callsign"))))
+                .perform(typeText(expected_callsign));
+        onView(withId(R.id.passcode))
+                .check(matches(withHint(containsString("Passcode"))))
+                .perform(typeText(expected_passcode));
+        onView(withId(android.R.id.button1)).perform(click());  // OK Button
+        Assert.assertEquals("Callsign", expected_callsign, prefs.getString(pref_callsign, null));
+        Assert.assertEquals("Passcode", expected_passcode, prefs.getString(pref_passcode, null));
+    }
+}

androidTest/java/org/aprsdroid/app/SharedPreferencesRule.java

@@ -0,0 +1,29 @@
+package org.aprsdroid.app;
+
+import android.content.Context;
+import android.content.SharedPreferences;
+import android.preference.PreferenceManager;
+
+import androidx.test.platform.app.InstrumentationRegistry;
+
+import org.junit.rules.TestRule;
+import org.junit.runner.Description;
+import org.junit.runners.model.Statement;
+
+public abstract class SharedPreferencesRule implements TestRule {
+    private SharedPreferences preferences;
+
+    protected abstract void modifyPreferences(SharedPreferences preferences);
+
+    public SharedPreferences getPreferences() {
+        return preferences;
+    }
+
+    @Override
+    public Statement apply(Statement base, Description description) {
+        Context appContext = InstrumentationRegistry.getInstrumentation().getTargetContext();
+        preferences = PreferenceManager.getDefaultSharedPreferences(appContext);
+        modifyPreferences(preferences);
+        return base;
+    }
+}