133 lines
4.7 KiB
Java
133 lines
4.7 KiB
Java
/*
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* Copyright 2004-2007 Sun Microsystems, Inc. All Rights Reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
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* CA 95054 USA or visit www.sun.com if you need additional information or
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* have any questions.
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*/
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import java.lang.reflect.Method;
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import java.util.*;
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import com.sun.mirror.apt.*;
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/**
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* Annotation processor for the @Test annotation.
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* Invokes each method so annotated, and verifies the result.
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* Throws an Error on failure.
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*
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* @author Scott Seligman
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*/
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public class TestProcessor implements AnnotationProcessor {
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AnnotationProcessorEnvironment env;
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// The tester that's running.
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Tester tester = Tester.activeTester;
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TestProcessor(AnnotationProcessorEnvironment env,
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Tester tester) {
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this.env = env;
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this.tester = tester;
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}
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/**
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* Reflectively invoke the @Test-annotated methods of the live
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* tester. Those methods perform the actual exercising of the
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* mirror API. Then back here to verify the results by
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* reading the live annotations. Convoluted, you say?
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*/
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public void process() {
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System.out.printf("\n> Processing %s\n", tester.getClass());
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boolean failed = false; // true if a test returns wrong result
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for (Method m : tester.getClass().getDeclaredMethods()) {
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Test anno = m.getAnnotation(Test.class);
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Ignore ignore = m.getAnnotation(Ignore.class);
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if (anno != null) {
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if (ignore == null) {
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System.out.println(">> Invoking test " + m.getName());
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Object result;
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try {
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result = m.invoke(tester);
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} catch (Exception e) {
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throw new Error("Test invocation failed", e);
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}
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boolean ok = true; // result of this test
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if (Collection.class.isAssignableFrom(m.getReturnType())) {
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ok = verifyResults((Collection) result,
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anno.result(), anno.ordered());
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} else if (m.getReturnType() != void.class) {
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ok = verifyResult(result, anno.result());
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}
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if (!ok) {
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System.out.println(">>> Expected: " + anno);
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System.out.println(">>> Got: " + result);
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failed = true;
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}
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} else {
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System.out.println(">> Ignoring test " + m.getName());
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if (ignore.value().length() > 0) {
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System.out.println(">>> Reason: " + ignore.value());
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}
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}
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}
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}
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if (failed) {
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throw new Error("Test(s) returned unexpected result");
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}
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}
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/**
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* Verify that a single-valued (non-Collection) result matches
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* its expected value.
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*/
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private boolean verifyResult(Object result, String[] expected) {
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assert expected.length == 1 :
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"Single-valued test expecting " + expected.length + " results";
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return expected[0].equals(String.valueOf(result));
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}
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/**
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* Verify that a multi-valued result (a Collection) matches
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* its expected values.
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*/
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private boolean verifyResults(Collection result,
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String[] expected, boolean ordered) {
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if (result.size() != expected.length) {
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return false;
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}
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// Convert result to an array of strings.
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String[] res = new String[result.size()];
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int i = 0;
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for (Object e : result) {
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res[i++] = String.valueOf(e);
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}
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if (!ordered) {
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Arrays.sort(res);
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Arrays.sort(expected);
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}
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return Arrays.equals(res, expected);
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}
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}
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