juneau-core/juneau-core-utest/src/test/java/org/apache/juneau/utils/MethodInvokerTest.java

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package org.apache.juneau.utils;

import static org.apache.juneau.testutils.TestUtils.*;
import static org.junit.Assert.assertEquals;

import java.lang.reflect.*;

import org.junit.*;

public class MethodInvokerTest {

	public static class A {
		public int foo() { return 0; }
		public int bar() { throw new RuntimeException("bar"); }
		public void baz(int x) { }
	}

	@Test
	public void testBasic() throws Exception {
		Method m = A.class.getMethod("foo");

		MethodExecStats mes = new MethodExecStats(m);
		MethodInvoker mi = new MethodInvoker(m, mes);

		A a = new A();
		mi.invoke(a);
		mi.invoke(a);
		mi.invoke(a);

		assertObjectMatches("{method:'A.foo',runs:3,running:0,errors:0,minTime:*,maxTime:*,avgTime:*,totalTime:*,exceptions:[]}", mes);
	}

	@Test
	public void testException() throws Exception {
		Method m = A.class.getMethod("bar");

		MethodExecStats mes = new MethodExecStats(m);
		MethodInvoker mi = new MethodInvoker(m, mes);

		A a = new A();
		try {
			mi.invoke(a);
		} catch (Exception e) {}
		try {
			mi.invoke(a);
		} catch (Exception e) {}
		try {
			mi.invoke(a);
		} catch (Exception e) {}

		assertObjectMatches("{method:'A.bar',runs:3,running:0,errors:3,minTime:*,maxTime:*,avgTime:*,totalTime:*,exceptions:[{exception:'RuntimeException',hash:'*',count:3}]}", mes);
	}

	@Test
	public void testIllegalArgument() throws Exception {
		Method m = A.class.getMethod("baz", int.class);

		MethodExecStats mes = new MethodExecStats(m);
		MethodInvoker mi = new MethodInvoker(m, mes);

		A a = new A();
		try {
			mi.invoke(a, "x");
		} catch (Exception e) {}
		try {
			mi.invoke(a);
		} catch (Exception e) {}
		try {
			mi.invoke(a, 1, "x");
		} catch (Exception e) {}

		assertObjectMatches("{method:'A.baz',runs:3,running:0,errors:3,minTime:*,maxTime:*,avgTime:*,totalTime:*,exceptions:[{exception:'IllegalArgumentException',hash:'*',count:3}]}", mes);
	}

	@Test
	public void testOtherMethods() throws Exception {
		Method m = A.class.getMethod("foo");
		MethodExecStats mes = new MethodExecStats(m);
		MethodInvoker mi = new MethodInvoker(m, mes);

		assertEquals(m, mi.inner());
		assertEquals("A", mi.getDeclaringClass().getSimpleName());
		assertEquals("foo", mi.getName());
	}

}