Spring Framework example source code file (ConstantsTests.java)

This example Spring Framework source code file (ConstantsTests.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" ^TM.

Java - Spring Framework tags/keywords

cat, constantexception, constants, constants, d, dog, dog, exception, integer, integer, must, s1, s1, set, util

The Spring Framework ConstantsTests.java source code

/*
 * Copyright 2002-2007 the original author or authors.
 *
 * 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.
 */

package org.springframework.core;

import java.util.Locale;
import java.util.Set;

import junit.framework.TestCase;

/**
 * @author Rod Johnson
 * @author Juergen Hoeller
 * @author Rick Evans
 * @since 28.04.2003
 */
public class ConstantsTests extends TestCase {

	public void testConstants() {
		Constants c = new Constants(A.class);
		assertEquals(A.class.getName(), c.getClassName());
		assertEquals(9, c.getSize());
		
		assertEquals(c.asNumber("DOG").intValue(), A.DOG);
		assertEquals(c.asNumber("dog").intValue(), A.DOG);
		assertEquals(c.asNumber("cat").intValue(), A.CAT);

		try {
			c.asNumber("bogus");
			fail("Can't get bogus field");
		}
		catch (ConstantException expected) {
		}

		assertTrue(c.asString("S1").equals(A.S1));
		try {
			c.asNumber("S1");
			fail("Wrong type");
		}
		catch (ConstantException expected) {
		}
	}

	public void testGetNames() {
		Constants c = new Constants(A.class);

		Set names = c.getNames("");
		assertEquals(c.getSize(), names.size());
		assertTrue(names.contains("DOG"));
		assertTrue(names.contains("CAT"));
		assertTrue(names.contains("S1"));

		names = c.getNames("D");
		assertEquals(1, names.size());
		assertTrue(names.contains("DOG"));

		names = c.getNames("d");
		assertEquals(1, names.size());
		assertTrue(names.contains("DOG"));
	}

	public void testGetValues() {
		Constants c = new Constants(A.class);

		Set values = c.getValues("");
		assertEquals(7, values.size());
		assertTrue(values.contains(new Integer(0)));
		assertTrue(values.contains(new Integer(66)));
		assertTrue(values.contains(""));

		values = c.getValues("D");
		assertEquals(1, values.size());
		assertTrue(values.contains(new Integer(0)));

		values = c.getValues("prefix");
		assertEquals(2, values.size());
		assertTrue(values.contains(new Integer(1)));
		assertTrue(values.contains(new Integer(2)));

		values = c.getValuesForProperty("myProperty");
		assertEquals(2, values.size());
		assertTrue(values.contains(new Integer(1)));
		assertTrue(values.contains(new Integer(2)));
	}

	public void testGetValuesInTurkey() {
		Locale oldLocale = Locale.getDefault();
		Locale.setDefault(new Locale("tr", ""));
		try {
			Constants c = new Constants(A.class);

			Set values = c.getValues("");
			assertEquals(7, values.size());
			assertTrue(values.contains(new Integer(0)));
			assertTrue(values.contains(new Integer(66)));
			assertTrue(values.contains(""));

			values = c.getValues("D");
			assertEquals(1, values.size());
			assertTrue(values.contains(new Integer(0)));

			values = c.getValues("prefix");
			assertEquals(2, values.size());
			assertTrue(values.contains(new Integer(1)));
			assertTrue(values.contains(new Integer(2)));

			values = c.getValuesForProperty("myProperty");
			assertEquals(2, values.size());
			assertTrue(values.contains(new Integer(1)));
			assertTrue(values.contains(new Integer(2)));
		}
		finally {
			Locale.setDefault(oldLocale);
		}
	}

	public void testSuffixAccess() {
		Constants c = new Constants(A.class);

		Set names = c.getNamesForSuffix("_PROPERTY");
		assertEquals(2, names.size());
		assertTrue(names.contains("NO_PROPERTY"));
		assertTrue(names.contains("YES_PROPERTY"));

		Set values = c.getValuesForSuffix("_PROPERTY");
		assertEquals(2, values.size());
		assertTrue(values.contains(new Integer(3)));
		assertTrue(values.contains(new Integer(4)));
	}

	public void testToCode() {
		Constants c = new Constants(A.class);

		assertEquals(c.toCode(new Integer(0), ""), "DOG");
		assertEquals(c.toCode(new Integer(0), "D"), "DOG");
		assertEquals(c.toCode(new Integer(0), "DO"), "DOG");
		assertEquals(c.toCode(new Integer(0), "DoG"), "DOG");
		assertEquals(c.toCode(new Integer(66), ""), "CAT");
		assertEquals(c.toCode(new Integer(66), "C"), "CAT");
		assertEquals(c.toCode(new Integer(66), "ca"), "CAT");
		assertEquals(c.toCode(new Integer(66), "cAt"), "CAT");
		assertEquals(c.toCode("", ""), "S1");
		assertEquals(c.toCode("", "s"), "S1");
		assertEquals(c.toCode("", "s1"), "S1");
		try {
			c.toCode("bogus", "bogus");
			fail("Should have thrown ConstantException");
		}
		catch (ConstantException expected) {
		}

		assertEquals(c.toCodeForProperty(new Integer(1), "myProperty"), "MY_PROPERTY_NO");
		assertEquals(c.toCodeForProperty(new Integer(2), "myProperty"), "MY_PROPERTY_YES");
		try {
			c.toCodeForProperty("bogus", "bogus");
			fail("Should have thrown ConstantException");
		}
		catch (ConstantException expected) {
		}

		assertEquals(c.toCodeForSuffix(new Integer(0), ""), "DOG");
		assertEquals(c.toCodeForSuffix(new Integer(0), "G"), "DOG");
		assertEquals(c.toCodeForSuffix(new Integer(0), "OG"), "DOG");
		assertEquals(c.toCodeForSuffix(new Integer(0), "DoG"), "DOG");
		assertEquals(c.toCodeForSuffix(new Integer(66), ""), "CAT");
		assertEquals(c.toCodeForSuffix(new Integer(66), "T"), "CAT");
		assertEquals(c.toCodeForSuffix(new Integer(66), "at"), "CAT");
		assertEquals(c.toCodeForSuffix(new Integer(66), "cAt"), "CAT");
		assertEquals(c.toCodeForSuffix("", ""), "S1");
		assertEquals(c.toCodeForSuffix("", "1"), "S1");
		assertEquals(c.toCodeForSuffix("", "s1"), "S1");
		try {
			c.toCodeForSuffix("bogus", "bogus");
			fail("Should have thrown ConstantException");
		}
		catch (ConstantException expected) {
		}
	}

	public void testGetValuesWithNullPrefix() throws Exception {
		Constants c = new Constants(A.class);
		Set values = c.getValues(null);
		assertEquals("Must have returned *all* public static final values", 7, values.size());
	}

	public void testGetValuesWithEmptyStringPrefix() throws Exception {
		Constants c = new Constants(A.class);
		Set values = c.getValues("");
		assertEquals("Must have returned *all* public static final values", 7, values.size());
	}

	public void testGetValuesWithWhitespacedStringPrefix() throws Exception {
		Constants c = new Constants(A.class);
		Set values = c.getValues(" ");
		assertEquals("Must have returned *all* public static final values", 7, values.size());
	}

	public void testWithClassThatExposesNoConstants() throws Exception {
		Constants c = new Constants(NoConstants.class);
		assertEquals(0, c.getSize());
		final Set values = c.getValues("");
		assertNotNull(values);
		assertEquals(0, values.size());
	}

	public void testCtorWithNullClass() throws Exception {
		try {
			new Constants(null);
			fail("Must have thrown IllegalArgumentException");
		}
		catch (IllegalArgumentException expected) {}
	}


	private static final class NoConstants {
	}
	

	private static final class A {
		
		public static final int DOG = 0;
		public static final int CAT = 66;
		public static final String S1 = "";

		public static final int PREFIX_NO = 1;
		public static final int PREFIX_YES = 2;

		public static final int MY_PROPERTY_NO = 1;
		public static final int MY_PROPERTY_YES = 2;

		public static final int NO_PROPERTY = 3;
		public static final int YES_PROPERTY = 4;

		/** ignore these */
		protected static final int P = -1;
		protected boolean f;
		static final Object o = new Object();
	}

}