Containers_showInFrame_withRobot_Test.java

/**
 * 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.
 *
 * Copyright 2012-2015 the original author or authors.
 */
package org.assertj.swing.fixture;

import static java.awt.GridBagConstraints.REMAINDER;
import static javax.swing.BorderFactory.createEmptyBorder;
import static org.assertj.core.api.Assertions.assertThat;
import static org.assertj.swing.edt.GuiActionRunner.execute;

import java.awt.GridBagConstraints;
import java.awt.GridBagLayout;

import javax.swing.Box;
import javax.swing.JComponent;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JPasswordField;
import javax.swing.JTextField;

import org.assertj.swing.test.core.RobotBasedTestCase;
import org.junit.Before;
import org.junit.Test;

/**
 * Tests for {@link Containers}.
 *
 * @author Christian Rösch
 */
public class Containers_showInFrame_withRobot_Test extends RobotBasedTestCase {
  private MyPanel panel;

  @Override
  @Before
  public void onSetUp() {
    panel = execute(() -> new MyPanel());
  }

  @Test
  public void should_Show_Container_In_JFrame() {
    FrameFixture frameFixture = null;
    try {
      frameFixture = Containers.showInFrame(robot, panel);
      frameFixture.requireShowing();
      assertThat(frameFixture.target()).isNotNull();
    } finally {
      cleanUp(frameFixture);
    }
  }

  private void cleanUp(FrameFixture frameFixture) {
    if (frameFixture != null) {
      frameFixture.cleanUp();
    }
  }

  private static class MyPanel extends JPanel {
    private final GridBagConstraints c = new GridBagConstraints();

    MyPanel() {
      setLayout(new GridBagLayout());
      setBorder(createEmptyBorder(10, 10, 10, 10));
      c.gridx = c.gridy = 0;
      addUsernameInput();
      nextLine();
      addPasswordInput();
    }

    private void addUsernameInput() {
      addInput("Username:", new JTextField(20));
    }

    private void addPasswordInput() {
      addInput("Password:", new JPasswordField(20));
    }

    private void addInput(String label, JComponent input) {
      add(new JLabel(label), c);
      c.gridx++;
      add(Box.createHorizontalStrut(10), c);
      c.gridx++;
      c.gridwidth = REMAINDER;
      add(input, c);
    }

    private void nextLine() {
      c.gridx = 0;
      c.gridwidth = 1;
      c.gridy++;
    }
  }
}