/*
 * Copyright 2015, 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.example.android.testing.espresso.BasicSample;

import android.app.Activity;
import android.test.ActivityInstrumentationTestCase2;

import org.junit.Before;
import org.junit.Rule;
import org.junit.Test;
import org.junit.runner.RunWith;

import androidx.lifecycle.Lifecycle;
import androidx.test.espresso.action.ViewActions;
import androidx.test.espresso.matcher.ViewMatchers;
import androidx.test.filters.LargeTest;
import androidx.test.rule.ActivityTestRule;
import androidx.test.runner.AndroidJUnit4;

import androidx.test.core.app.ActivityScenario;

import static androidx.test.espresso.Espresso.onView;
import static androidx.test.espresso.action.ViewActions.click;
import static androidx.test.espresso.action.ViewActions.closeSoftKeyboard;
import static androidx.test.espresso.action.ViewActions.typeText;
import static androidx.test.espresso.assertion.ViewAssertions.matches;
import static androidx.test.espresso.matcher.ViewMatchers.withId;
import static androidx.test.espresso.matcher.ViewMatchers.withText;


/**
 * Basic tests showcasing simple view matchers and actions like {@link ViewMatchers#withId},
 * {@link ViewActions#click} and {@link ViewActions#typeText}.
 * <p>
 * Note that there is no need to tell Espresso that a view is in a different {@link Activity}.
 */
@RunWith(AndroidJUnit4.class)
@LargeTest
public class NewChangeTextBehaviorTest {

    public static final String STRING_TO_BE_TYPED = "Espresso";

    /**
     * A JUnit {@link Rule @Rule} to launch your activity under test. This is a replacement
     * for {@link ActivityInstrumentationTestCase2}.
     * <p>
     * Rules are interceptors which are executed for each test method and will run before
     * any of your setup code in the {@link Before @Before} method.
     * <p>
     * {@link ActivityTestRule} will create and launch of the activity for you and also expose
     * the activity under test. To get a reference to the activity you can use
     * the {@link ActivityTestRule#getActivity()} method.
     */

    ActivityScenario<MainActivity> scenario;


    @Before
    public void setUp() throws Exception {
        scenario = ActivityScenario.launch(MainActivity.class);
    }

    @Test
    public void changeText_sameActivity() throws Exception {
        // Type text and then press the button.
        onView(withId(R.id.editTextUserInput))
                .perform(typeText(STRING_TO_BE_TYPED), closeSoftKeyboard());
        onView(withId(R.id.changeTextBt)).perform(click());

        // Check that the text was changed.
        onView(withId(R.id.textToBeChanged)).check(matches(withText(STRING_TO_BE_TYPED)));

        scenario.moveToState(Lifecycle.State.CREATED);
    }

    @Test
    public void changeText_newActivity()  throws Exception {
        // Type text and then press the button.
        onView(withId(R.id.editTextUserInput)).perform(typeText(STRING_TO_BE_TYPED),
                closeSoftKeyboard());
        onView(withId(R.id.activityChangeTextBtn)).perform(click());

        // This view is in a different Activity, no need to tell Espresso.
        onView(withId(R.id.show_text_view)).check(matches(withText(STRING_TO_BE_TYPED)));

        scenario.moveToState(Lifecycle.State.STARTED);
    }
}
add ActivityScenario test