TestComponentRule.java

/*
 * Copyright (C) 2017 MINDORKS NEXTGEN PRIVATE LIMITED
 * 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
 *
 *     https://mindorks.com/license/apache-v2
 *
 * 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.mindorks.framework.mvp;

import android.content.Context;

import com.mindorks.framework.mvp.data.DataManager;
import com.mindorks.framework.mvp.di.component.DaggerTestComponent;
import com.mindorks.framework.mvp.di.component.TestComponent;
import com.mindorks.framework.mvp.di.module.ApplicationTestModule;

import org.junit.rules.TestRule;
import org.junit.runner.Description;
import org.junit.runners.model.Statement;

/**
 * Created by amitshekhar on 03/02/17.
 */

public class TestComponentRule implements TestRule {

    private TestComponent mTestComponent;
    private Context mContext;

    public TestComponentRule(Context context) {
        mContext = context;
    }

    public Context getContext() {
        return mContext;
    }

    public DataManager getDataManager() {
        return mTestComponent.getDataManager();
    }

    private void setupDaggerTestComponentInApplication() {
        MvpApp application = ((MvpApp) mContext.getApplicationContext());
        mTestComponent = DaggerTestComponent.builder()
                .applicationTestModule(new ApplicationTestModule(application))
                .build();
        application.setComponent(mTestComponent);
    }

    @Override
    public Statement apply(final Statement base, Description description) {
        return new Statement() {
            @Override
            public void evaluate() throws Throwable {
                try {
                    setupDaggerTestComponentInApplication();
                    base.evaluate();
                } finally {
                    mTestComponent = null;
                }
            }
        };
    }
}