package de.ph87.electro.circuit;

import de.ph87.electro.circuit.part.parts.PartBattery;
import de.ph87.electro.circuit.part.parts.PartLight;
import org.junit.jupiter.api.BeforeAll;
import org.junit.jupiter.api.Test;

import static org.junit.jupiter.api.Assertions.assertEquals;
import static org.junit.jupiter.api.Assertions.assertFalse;

public class BatteryLightTest {

  private static final double VOLTAGE = 3;

  private static final Circuit CIRCUIT = new Circuit();

  private static final PartBattery battery = CIRCUIT.addPart(new PartBattery());

  private static final PartLight light = CIRCUIT.addPart(new PartLight());

  @BeforeAll
  public static void setUp() {
    CIRCUIT.connect(battery.getPlus(), light.getB());
    CIRCUIT.connect(light.getA(), battery.getMinus());
  }

  @Test
  void test() {
    CIRCUIT.evaluateAndRender();

    assertEquals(VOLTAGE, battery.getPlus().getVoltage());
    assertEquals(VOLTAGE, light.getB().getVoltage());
    assertEquals(VOLTAGE, light.getPotentialDifference());

    assertEquals(0, light.getA().getVoltage());
    assertEquals(0, battery.getMinus().getVoltage());

    assertFalse(light.isDefect());
  }

}