daffa_usman/TestAddProductSuccess.java

package org.aplas.myshop;

import static org.junit.Assert.assertTrue;

import androidx.appcompat.widget.AppCompatButton;
import androidx.lifecycle.Lifecycle;
import androidx.test.core.app.ActivityScenario;

import org.aplas.myshop.sql.Database;
import org.junit.After;
import org.junit.Before;
import org.junit.FixMethodOrder;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.junit.runners.MethodSorters;
import org.robolectric.RobolectricTestRunner;
import org.robolectric.annotation.Config;

import com.google.android.material.textfield.TextInputEditText;

@RunWith(RobolectricTestRunner.class)
@Config(manifest= Config.NONE)
@FixMethodOrder(MethodSorters.NAME_ASCENDING)

public class TestAddProductSuccess extends ViewTest{
    ActivityScenario<AddProductActivity> scenario;
    private TextInputEditText nama, price;
    private AppCompatButton addButton;
    private Database database;

    @Before
    public void setUp() {
        scenario = ActivityScenario.launch(AddProductActivity.class);
        scenario.moveToState(Lifecycle.State.CREATED);
        scenario.onActivity(activity -> {
            nama = activity.findViewById(R.id.textInputEditTextProductName);
            price = activity.findViewById(R.id.textInputEditTextProductPrice);
            addButton = activity.findViewById(R.id.appCompatButtonAddProduct);
            database = new Database(activity);
        });
    }

    @After
    public void tearDown() {
        scenario.close();
        database.close();
    }

    @Test
    public void test_01_addProduct() {
        scenario.onActivity(activity -> {
            nama.setText("Product Example");
            price.setText("15000");
            addButton.performClick();
            boolean x = database.checkProduct("Product Example", "15000");

            testItem(true, x, "Your add product function doesn't seem working, please check the add button on click function inside AddProductActivity, or check the database add product method inside the database class", 3);
        });
    }
}