Rewrite EmergencyContactsPreferenceTest as a unit test.

The instrumentation test runner is deprecated.
Rewriting the tests paves the way to migrating to the support
library, which the new UX relies on.

Bug: 30046624
Test: runtest --path packages/apps/EmergencyInfo/tests
Change-Id: I73b820dc352713768a41e32713b02b4388b80452

2 files changed, 123 insertions, 177 deletions

diff --git a/tests/instrumentation/src/com/android/emergency/preferences/EmergencyContactsPreferenceTest.java b/tests/instrumentation/src/com/android/emergency/preferences/EmergencyContactsPreferenceTest.java
deleted file mode 100644
index ac4b1e08..00000000
--- a/tests/instrumentation/src/com/android/emergency/preferences/EmergencyContactsPreferenceTest.java
+++ /dev/null
@@ -1,177 +0,0 @@
-/*
- * Copyright (C) 2016 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package com.android.emergency.preferences;
-
-import static com.google.common.truth.Truth.assertThat;
-
-import android.app.AlertDialog;
-import android.content.ContentResolver;
-import android.content.DialogInterface;
-import android.net.Uri;
-import android.preference.PreferenceFragment;
-import android.preference.PreferenceManager;
-import android.test.ActivityInstrumentationTestCase2;
-import android.test.suitebuilder.annotation.LargeTest;
-import android.view.View;
-
-import com.android.emergency.ContactTestUtils;
-import com.android.emergency.PreferenceKeys;
-import com.android.emergency.R;
-import com.android.emergency.edit.EditInfoActivity;
-
-import java.util.ArrayList;
-import java.util.List;
-
-/**
- * Tests for {@link EmergencyContactsPreference}.
- */
-@LargeTest
-public class EmergencyContactsPreferenceTest
-        extends ActivityInstrumentationTestCase2<EditInfoActivity> {
-    private PreferenceFragment mEditInfoFragment;
-    private EmergencyContactsPreference mEmergencyContactsPreference;
-    private ContentResolver mContentResolver;
-
-    public EmergencyContactsPreferenceTest() {
-        super(EditInfoActivity.class);
-    }
-
-    @Override
-    protected void setUp() throws Exception {
-        super.setUp();
-        mEditInfoFragment = getActivity().getFragment();
-
-        mEmergencyContactsPreference =
-                (EmergencyContactsPreference) mEditInfoFragment
-                        .findPreference(PreferenceKeys.KEY_EMERGENCY_CONTACTS);
-        try {
-            runTestOnUiThread(new Runnable() {
-                @Override
-                public void run() {
-                    mEmergencyContactsPreference.setEmergencyContacts(new ArrayList<Uri>());
-                }
-            });
-        } catch (Throwable throwable) {
-            fail("Should not throw exception: " + throwable.getMessage());
-        }
-
-        mContentResolver = getActivity().getContentResolver();
-    }
-
-    @Override
-    protected void tearDown() throws Exception {
-        PreferenceManager.getDefaultSharedPreferences(getActivity()).edit().clear().commit();
-        super.tearDown();
-    }
-
-    public void testWidgetClick_positiveButton() throws Throwable {
-        final String name = "Jane";
-        final String phoneNumber = "456";
-
-        final Uri emergencyPhoneUri =
-                ContactTestUtils.createContact(mContentResolver, name, phoneNumber);
-        runTestOnUiThread(new Runnable() {
-            @Override
-            public void run() {
-                mEmergencyContactsPreference.addNewEmergencyContact(emergencyPhoneUri);
-            }
-        });
-
-        assertThat(mEmergencyContactsPreference.getEmergencyContacts().size()).isEqualTo(1);
-        assertThat(mEmergencyContactsPreference.getPreferenceCount()).isEqualTo(1);
-        ContactPreference contactPreference = (ContactPreference)
-                mEmergencyContactsPreference.getPreference(0);
-
-        View contactPreferenceView = contactPreference.getView(null, null);
-        assertThat(contactPreferenceView).isNotNull();
-        final View deleteContactWidget = contactPreferenceView.findViewById(R.id.delete_contact);
-        assertThat(deleteContactWidget.getVisibility()).isEqualTo(View.VISIBLE);
-
-        runTestOnUiThread(new Runnable() {
-            @Override
-            public void run() {
-                deleteContactWidget.performClick();
-            }
-        });
-
-        getInstrumentation().waitForIdleSync();
-        final AlertDialog removeContactDialog = contactPreference.getRemoveContactDialog();
-        assertThat(removeContactDialog.isShowing()).isTrue();
-
-        runTestOnUiThread(new Runnable() {
-            @Override
-            public void run() {
-                removeContactDialog.getButton(DialogInterface.BUTTON_POSITIVE).performClick();
-            }
-        });
-        getInstrumentation().waitForIdleSync();
-
-        assertThat(mEmergencyContactsPreference.getEmergencyContacts()).isEmpty();
-        assertThat(mEmergencyContactsPreference.getPreferenceCount()).isEqualTo(0);
-
-        // Clean up the inserted contact
-        assertThat(ContactTestUtils.deleteContact(mContentResolver, name, phoneNumber)).isTrue();
-    }
-
-    public void testWidgetClick_negativeButton() throws Throwable {
-        final String name = "Jane";
-        final String phoneNumber = "456";
-
-        final Uri emergencyPhoneUri =
-                ContactTestUtils.createContact(mContentResolver, name, phoneNumber);
-        runTestOnUiThread(new Runnable() {
-            @Override
-            public void run() {
-                mEmergencyContactsPreference.addNewEmergencyContact(emergencyPhoneUri);
-            }
-        });
-
-        assertThat(mEmergencyContactsPreference.getEmergencyContacts().size()).isEqualTo(1);
-        assertThat(mEmergencyContactsPreference.getPreferenceCount()).isEqualTo(1);
-        ContactPreference contactPreference = (ContactPreference)
-                mEmergencyContactsPreference.getPreference(0);
-
-        View contactPreferenceView = contactPreference.getView(null, null);
-        assertThat(contactPreferenceView).isNotNull();
-        final View deleteContactWidget = contactPreferenceView.findViewById(R.id.delete_contact);
-        assertThat(deleteContactWidget.getVisibility()).isEqualTo(View.VISIBLE);
-
-        runTestOnUiThread(new Runnable() {
-            @Override
-            public void run() {
-                deleteContactWidget.performClick();
-            }
-        });
-        getInstrumentation().waitForIdleSync();
-
-        getInstrumentation().waitForIdleSync();
-        final AlertDialog removeContactDialog = contactPreference.getRemoveContactDialog();
-        assertThat(removeContactDialog.isShowing()).isTrue();
-
-        runTestOnUiThread(new Runnable() {
-            @Override
-            public void run() {
-                removeContactDialog.getButton(DialogInterface.BUTTON_NEGATIVE).performClick();
-            }
-        });
-
-        assertThat(mEmergencyContactsPreference.getEmergencyContacts().size()).isEqualTo(1);
-        assertThat(mEmergencyContactsPreference.getPreferenceCount()).isEqualTo(1);
-
-        // Clean up the inserted contact
-        assertThat(ContactTestUtils.deleteContact(mContentResolver, name, phoneNumber)).isTrue();
-    }
-}
diff --git a/tests/unit/src/com/android/emergency/preferences/EmergencyContactsPreferenceTest.java b/tests/unit/src/com/android/emergency/preferences/EmergencyContactsPreferenceTest.java
new file mode 100644
index 00000000..f79964fc
--- /dev/null
+++ b/tests/unit/src/com/android/emergency/preferences/EmergencyContactsPreferenceTest.java
@@ -0,0 +1,123 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.android.emergency.preferences;
+
+import static android.support.test.espresso.Espresso.onView;
+import static android.support.test.espresso.action.ViewActions.click;
+import static android.support.test.espresso.matcher.ViewMatchers.withId;
+import static android.support.test.espresso.matcher.ViewMatchers.withText;
+import static com.google.common.truth.Truth.assertThat;
+
+import android.app.Instrumentation;
+import android.content.Context;
+import android.content.Intent;
+import android.net.Uri;
+import android.os.Looper;
+import android.preference.PreferenceManager;
+import android.support.test.InstrumentationRegistry;
+import android.support.test.runner.AndroidJUnit4;
+import android.view.View;
+
+import com.android.emergency.ContactTestUtils;
+import com.android.emergency.PreferenceKeys;
+import com.android.emergency.R;
+import com.android.emergency.edit.EditInfoActivity;
+import com.android.emergency.edit.EditInfoFragment;
+
+import org.junit.After;
+import org.junit.Before;
+import org.junit.BeforeClass;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+
+/** Unit tests for {@link EmergencyContactsPreference}. */
+@RunWith(AndroidJUnit4.class)
+public final class EmergencyContactsPreferenceTest {
+    private static final String NAME = "Jane";
+    private static final String PHONE_NUMBER = "456";
+
+    private Instrumentation mInstrumentation;
+    private Context mTargetContext;
+    private EmergencyContactsPreference mPreference;
+
+    @BeforeClass
+    public static void oneTimeSetup() {
+        if (Looper.myLooper() == null) {
+            Looper.prepare();
+        }
+    }
+
+    @Before
+    public void setUp() {
+        mInstrumentation = InstrumentationRegistry.getInstrumentation();
+        mTargetContext = mInstrumentation.getTargetContext();
+
+        // In case a previous test crashed or failed, clear any previous shared preference value.
+        PreferenceManager.getDefaultSharedPreferences(mTargetContext).edit().clear().commit();
+
+        // Create a contact that'll be used in each unit test.
+        final Uri contactUri = ContactTestUtils.createContact(
+                mTargetContext.getContentResolver(), NAME, PHONE_NUMBER);
+        PreferenceManager.getDefaultSharedPreferences(mTargetContext)
+                .edit().putString(PreferenceKeys.KEY_EMERGENCY_CONTACTS, contactUri.toString())
+                .commit();
+
+        mPreference = startActivityAndGetEmergencyContactsPreference();
+        mPreference.addNewEmergencyContact(contactUri);
+    }
+
+    @After
+    public void tearDown() {
+        // Clean up the inserted contact
+        assertThat(ContactTestUtils.deleteContact(
+                mTargetContext.getContentResolver(), NAME, PHONE_NUMBER)).isTrue();
+        PreferenceManager.getDefaultSharedPreferences(mTargetContext).edit().clear().commit();
+    }
+
+    @Test
+    public void testWidgetClick_positiveButton() {
+        assertThat(mPreference.getEmergencyContacts()).hasSize(1);
+        assertThat(mPreference.getPreferenceCount()).isEqualTo(1);
+
+        onView(withId(R.id.delete_contact)).perform(click());
+        onView(withText(R.string.remove)).perform(click());
+
+        assertThat(mPreference.getEmergencyContacts()).isEmpty();
+        assertThat(mPreference.getPreferenceCount()).isEqualTo(0);
+    }
+
+    @Test
+    public void testWidgetClick_negativeButton() {
+        assertThat(mPreference.getEmergencyContacts()).hasSize(1);
+        assertThat(mPreference.getPreferenceCount()).isEqualTo(1);
+
+        onView(withId(R.id.delete_contact)).perform(click());
+        onView(withText(android.R.string.cancel)).perform(click());
+
+        assertThat(mPreference.getEmergencyContacts()).hasSize(1);
+        assertThat(mPreference.getPreferenceCount()).isEqualTo(1);
+    }
+
+    private EmergencyContactsPreference startActivityAndGetEmergencyContactsPreference() {
+        final Intent editActivityIntent = new Intent(mTargetContext, EditInfoActivity.class);
+        EditInfoActivity activity =
+                (EditInfoActivity) mInstrumentation.startActivitySync(editActivityIntent);
+        EditInfoFragment fragment = (EditInfoFragment) activity.getFragment();
+
+        return (EmergencyContactsPreference) fragment.findPreference(
+                PreferenceKeys.KEY_EMERGENCY_CONTACTS);
+    }
+}