JavaPackageTest.java

package org.springframework.roo.model;

import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertTrue;

import java.util.Arrays;
import java.util.List;

import org.junit.Test;

/**
 * Unit test of {@link JavaPackage}.
 * 
 * @author Andrew Swan
 * @since 1.2.0
 */
public class JavaPackageTest {

  private static final JavaPackage CHILD = new JavaPackage("com.foo.bar");
  private static final JavaPackage PARENT = new JavaPackage("com.foo");

  @Test
  public void testChildPackageIsWithinParent() {
    assertTrue(CHILD.isWithin(PARENT));
  }

  @Test
  public void testGetElementsOfMultiLevelPackage() {
    // Set up
    final JavaPackage javaPackage = CHILD;

    // Invoke
    final List<String> elements = javaPackage.getElements();

    // Check
    assertEquals(Arrays.asList("com", "foo", "bar"), elements);
    assertEquals("bar", javaPackage.getLastElement());
  }

  @Test
  public void testGetElementsOfSingleLevelPackage() {
    // Set up
    final JavaPackage javaPackage = new JavaPackage("me");

    // Invoke
    final List<String> elements = javaPackage.getElements();

    // Check
    assertEquals(Arrays.asList("me"), elements);
    assertEquals("me", javaPackage.getLastElement());
  }

  @Test
  public void testPackageIsNotWithinNullPackage() {
    assertFalse(PARENT.isWithin(null));
  }

  @Test
  public void testPackageIsWithinSelf() {
    assertTrue(PARENT.isWithin(PARENT));
  }

  @Test
  public void testParentPackageIsNotWithinChild() {
    assertFalse(PARENT.isWithin(CHILD));
  }
}