/**

  * SQL-DK

  * Copyright © 2013 František Kučera (frantovo.cz)

  *

  * This program is free software: you can redistribute it and/or modify

  * it under the terms of the GNU General Public License as published by

  * the Free Software Foundation, either version 3 of the License, or

  * (at your option) any later version.

  *

  * This program is distributed in the hope that it will be useful,

  * but WITHOUT ANY WARRANTY; without even the implied warranty of

  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the

  * GNU General Public License for more details.

  *

  * You should have received a copy of the GNU General Public License

  * along with this program. If not, see <http://www.gnu.org/licenses/>.

  */

 package info.globalcode.sql.dk;

 import java.util.ArrayList;

 import java.util.Collection;

 import java.util.List;

 import org.junit.jupiter.api.Test;

 import static org.junit.jupiter.api.Assertions.*;

 /**

  *

  * @author Ing. František Kučera (frantovo.cz)

  */

 public class FunctionsTest {

 	@Test

 	public void testNotNull() {

 		Collection<String> c = null;

 		for (String s : Functions.notNull(c)) {

 			fail("Should not iterate through null collection");

 		}

 		c = new ArrayList<>();

 		c.add("ahoj");

 		int count = 0;

 		for (String s : Functions.notNull(c)) {

 			assertEquals(s, "ahoj", "Wrong item in collection");

 			count++;

 		}

 		assertEquals(count, 1, "Wrong number of iterations");

 	}

 	@Test

 	public void testLpad() {

 		String original = "abc";

 		String padded;

 		padded = Functions.lpad(original, 5);

 		assertEquals(padded, "  abc");

 		padded = Functions.lpad(original, 2);

 		assertEquals(padded, original);

 	}

 	@Test

 	public void testRpad() {

 		String original = "abc";

 		String padded;

 		padded = Functions.rpad(original, 5);

 		assertEquals(padded, "abc  ");

 		padded = Functions.rpad(original, 2);

 		assertEquals(padded, original);

 	}

 	@Test

 	public void testRepeat() {

 		assertEquals(Functions.repeat('f', 0), "");

 		assertEquals(Functions.repeat('f', 3), "fff");

 	}

 	@Test

 	public void testGetClassHierarchy() {

 		List<Class<? extends HierarchyMockClass2>> hierarchy = Functions.getClassHierarchy(HierarchyMockClass0.class, HierarchyMockClass2.class);

 		assertEquals(hierarchy.size(), 3, "invalid number of classes in the hierarchy");

 		assertEquals(hierarchy.get(0), HierarchyMockClass0.class);

 		assertEquals(hierarchy.get(1), HierarchyMockClass1.class);

 		assertEquals(hierarchy.get(2), HierarchyMockClass2.class);

 	}

 	private static class HierarchyMockClass0 extends HierarchyMockClass1 {

 	}

 	private static class HierarchyMockClass1 extends HierarchyMockClass2 {

 	}

 	private static class HierarchyMockClass2 {

 	}

 }