2 Java 4 Browser Bytecode Translator
3 Copyright (C) 2012-2012 Jaroslav Tulach <jaroslav.tulach@apidesign.org>
5 This program is free software: you can redistribute it and/or modify
6 it under the terms of the GNU General Public License as published by
7 the Free Software Foundation, version 2 of the License.
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
14 You should have received a copy of the GNU General Public License
15 along with this program. Look for COPYING file in the top folder.
16 If not, see http://opensource.org/licenses/GPL-2.0.
18 package org.apidesign.java4browser;
20 import java.io.IOException;
21 import java.io.InputStream;
22 import javax.script.Invocable;
23 import javax.script.ScriptEngine;
24 import javax.script.ScriptEngineManager;
25 import javax.script.ScriptException;
26 import static org.testng.Assert.*;
27 import org.testng.annotations.Test;
29 /** Checks the basic behavior of the translator.
31 * @author Jaroslav Tulach <jtulach@netbeans.org>
33 public class StaticMethodTest {
34 @Test public void threePlusFour() throws Exception {
37 "org_apidesign_java4browser_StaticMethod_sumIII",
43 @Test public void powerOfThree() throws Exception {
46 "org_apidesign_java4browser_StaticMethod_powerFF",
52 @Test public void doubleWithoutLong() throws Exception {
55 "org_apidesign_java4browser_StaticMethod_minusDDJ",
61 @Test public void divAndRound() throws Exception {
63 "Should be rounded to one",
64 "org_apidesign_java4browser_StaticMethod_divIBD",
69 @Test public void mixedMethodFourParams() throws Exception {
72 "org_apidesign_java4browser_StaticMethod_mixIIJBD",
77 @Test public void factRec() throws Exception {
79 "Factorial of 5 is 120",
80 "org_apidesign_java4browser_StaticMethod_factRecJI",
85 @Test public void factIter() throws Exception {
87 "Factorial of 5 is 120",
88 "org_apidesign_java4browser_StaticMethod_factIterJI",
94 private static void assertExec(String msg, String methodName, Object expRes, Object... args) throws Exception {
95 StringBuilder sb = new StringBuilder();
96 Invocable i = compileClass("StaticMethod.class", sb);
100 ret = i.invokeFunction(methodName, args);
101 } catch (ScriptException ex) {
102 fail("Execution failed in " + sb, ex);
103 } catch (NoSuchMethodException ex) {
104 fail("Cannot find method in " + sb, ex);
106 if (ret == null && expRes == null) {
109 if (expRes.equals(ret)) {
112 assertEquals(ret, expRes, msg + "was: " + ret + "\n" + sb);
116 static Invocable compileClass(String name, StringBuilder sb) throws ScriptException, IOException {
117 InputStream is = StaticMethodTest.class.getResourceAsStream(name);
118 assertNotNull(is, "Class file found");
120 sb = new StringBuilder();
122 ByteCodeToJavaScript.compile(name, is, sb);
123 ScriptEngineManager sem = new ScriptEngineManager();
124 ScriptEngine js = sem.getEngineByExtension("js");
126 Object res = js.eval(sb.toString());
127 assertTrue(js instanceof Invocable, "It is invocable object: " + res);
128 return (Invocable)js;
129 } catch (ScriptException ex) {
130 fail("Could not compile:\n" + sb, ex);