juneau-core/juneau-core-utest/src/test/java/org/apache/juneau/ValueTest.java

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package org.apache.juneau;

import static org.junit.Assert.*;
import java.lang.reflect.*;
import java.util.*;

import org.apache.juneau.reflect.*;
import org.junit.*;

/**
 * Validates the {@link Value} class.
 */
public class ValueTest {

	//-----------------------------------------------------------------------------------------------------------------
	// Value defined on parent class.
	//-----------------------------------------------------------------------------------------------------------------

	public static class A extends Value<A1>{}
	public static class A1 {}

	@Test
	public void testSubclass() {
		assertEquals(A1.class, Value.getParameterType(A.class));
	}

	//-----------------------------------------------------------------------------------------------------------------
	// Value used in parameter.
	//-----------------------------------------------------------------------------------------------------------------
	public static class B {
		public void b(Value<B1> b1) {};
	}
	public static class B1 {}

	@Test
	public void testOnParameter() throws Exception {
		assertEquals(B1.class, Value.getParameterType(B.class.getMethod("b", Value.class), 0));
	}

	//-----------------------------------------------------------------------------------------------------------------
	// Value used on parameter of parameterized-type.
	//-----------------------------------------------------------------------------------------------------------------
	public interface C {
		void m1(Value<List<Integer>> v);
	}

	@Test
	public void testOnParameterType() throws Exception {
		Type t = Value.getParameterType(C.class.getMethod("m1", Value.class), 0);
		assertEquals("List<Integer>", ClassInfo.of(t).getShortName());
	}
}