android/arch/lifecycle/ViewModelProvidersTest.java

/*
 * Copyright 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 android.arch.lifecycle;

import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentActivity;

import org.junit.Test;
import org.junit.runner.RunWith;
import org.junit.runners.JUnit4;

@RunWith(JUnit4.class)
public class ViewModelProvidersTest {

    @Test(expected = IllegalStateException.class)
    public void testNotAttachedActivity() {
        // This is similar to call ViewModelProviders.of in Activity's constructor
        ViewModelProviders.of(new FragmentActivity());
    }

    @Test(expected = IllegalStateException.class)
    public void testNotAttachedFragment() {
        // This is similar to call ViewModelProviders.of in Activity's constructor
        ViewModelProviders.of(new Fragment());
    }
}