jaroslav@106: /**
jaroslav@106:  * Back 2 Browser Bytecode Translator
jaroslav@106:  * Copyright (C) 2012 Jaroslav Tulach <jaroslav.tulach@apidesign.org>
jaroslav@106:  *
jaroslav@106:  * This program is free software: you can redistribute it and/or modify
jaroslav@106:  * it under the terms of the GNU General Public License as published by
jaroslav@106:  * the Free Software Foundation, version 2 of the License.
jaroslav@106:  *
jaroslav@106:  * This program is distributed in the hope that it will be useful,
jaroslav@106:  * but WITHOUT ANY WARRANTY; without even the implied warranty of
jaroslav@106:  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
jaroslav@106:  * GNU General Public License for more details.
jaroslav@106:  *
jaroslav@106:  * You should have received a copy of the GNU General Public License
jaroslav@106:  * along with this program. Look for COPYING file in the top folder.
jaroslav@106:  * If not, see http://opensource.org/licenses/GPL-2.0.
jaroslav@106:  */
jaroslav@22: package org.apidesign.vm4brwsr;
jaroslav@0: 
jaroslav@137: import java.io.File;
jaroslav@137: import java.io.FileWriter;
jaroslav@0: import java.io.IOException;
jaroslav@0: import javax.script.Invocable;
jaroslav@0: import javax.script.ScriptEngine;
jaroslav@0: import javax.script.ScriptEngineManager;
jaroslav@0: import javax.script.ScriptException;
jaroslav@0: import static org.testng.Assert.*;
jaroslav@103: import org.testng.annotations.BeforeClass;
jaroslav@0: import org.testng.annotations.Test;
jaroslav@0: 
jaroslav@0: /** Checks the basic behavior of the translator.
jaroslav@0:  *
jaroslav@0:  * @author Jaroslav Tulach <jtulach@netbeans.org>
jaroslav@0:  */
jaroslav@0: public class StaticMethodTest {
jaroslav@0:     @Test public void threePlusFour() throws Exception {
jaroslav@2:         assertExec(
jaroslav@2:             "Should be seven", 
jaroslav@248:             StaticMethod.class, "sum__III", 
jaroslav@2:             Double.valueOf(7), 
jaroslav@2:             3, 4
jaroslav@2:         );
jaroslav@0:     }
jaroslav@0: 
jaroslav@173:     @Test public void checkReallyInitializedValues() throws Exception {
jaroslav@173:         assertExec(
jaroslav@173:             "Return true", 
jaroslav@248:             StaticMethod.class, "isNull__Z", 
jaroslav@173:             Double.valueOf(1)
jaroslav@173:         );
jaroslav@173:     }
jaroslav@173: 
jaroslav@1:     @Test public void powerOfThree() throws Exception {
jaroslav@2:         assertExec(
jaroslav@2:             "Should be nine", 
jaroslav@248:             StaticMethod.class, "power__FF", 
jaroslav@2:             Double.valueOf(9),
jaroslav@2:             3.0f
jaroslav@2:         );
jaroslav@1:     }
jaroslav@1: 
jaroslav@48:     @Test public void minusOne() throws Exception {
jaroslav@48:         assertExec(
jaroslav@48:             "Should be minus one", 
jaroslav@248:             StaticMethod.class, "minusOne__I", 
jaroslav@48:             Double.valueOf(-1)
jaroslav@48:         );
jaroslav@48:     }
jaroslav@48: 
jaroslav@2:     @Test public void doubleWithoutLong() throws Exception {
jaroslav@2:         assertExec(
jaroslav@2:             "Should be two",
jaroslav@248:             StaticMethod.class, "minus__DDJ", 
jaroslav@2:             Double.valueOf(2),
jaroslav@2:             3.0d, 1l
jaroslav@2:         );
jaroslav@2:     }
jaroslav@3: 
jaroslav@3:     @Test public void divAndRound() throws Exception {
jaroslav@3:         assertExec(
jaroslav@3:             "Should be rounded to one",
jaroslav@248:             StaticMethod.class, "div__IBD", 
jaroslav@3:             Double.valueOf(1),
jaroslav@3:             3, 3.75
jaroslav@3:         );
jaroslav@3:     }
jaroslav@3:     @Test public void mixedMethodFourParams() throws Exception {
jaroslav@3:         assertExec(
jaroslav@3:             "Should be two",
jaroslav@248:             StaticMethod.class, "mix__IIJBD", 
jaroslav@3:             Double.valueOf(20),
jaroslav@3:             2, 10l, 5, 2.0
jaroslav@3:         );
jaroslav@3:     }
jaroslav@4:     @Test public void factRec() throws Exception {
jaroslav@4:         assertExec(
jaroslav@4:             "Factorial of 5 is 120",
jaroslav@248:             StaticMethod.class, "factRec__JI", 
jaroslav@4:             Double.valueOf(120),
jaroslav@4:             5
jaroslav@4:         );
jaroslav@4:     }
jaroslav@5:     @Test public void factIter() throws Exception {
jaroslav@5:         assertExec(
jaroslav@5:             "Factorial of 5 is 120",
jaroslav@248:             StaticMethod.class, "factIter__JI", 
jaroslav@5:             Double.valueOf(120),
jaroslav@5:             5
jaroslav@5:         );
jaroslav@5:     }
jaroslav@2:     
jaroslav@6:     @Test public void xor() throws Exception {
jaroslav@6:         assertExec(
jaroslav@6:             "Xor is 4",
jaroslav@248:             StaticMethod.class, "xor__JIJ",
jaroslav@6:             Double.valueOf(4),
jaroslav@6:             7,
jaroslav@6:             3
jaroslav@6:         );
jaroslav@6:     }
jaroslav@6:     
jaroslav@7:     @Test public void or() throws Exception {
jaroslav@7:         assertExec(
jaroslav@7:             "Or will be 7",
jaroslav@248:             StaticMethod.class, "orOrAnd__JZII",
jaroslav@7:             Double.valueOf(7),
jaroslav@7:             true,
jaroslav@7:             4,
jaroslav@7:             3
jaroslav@7:         );
jaroslav@7:     }
jaroslav@46:     @Test public void nullCheck() throws Exception {
jaroslav@46:         assertExec(
jaroslav@46:             "Returns nothing",
jaroslav@248:             StaticMethod.class, "none__Ljava_lang_Object_2II",
jaroslav@46:             null, 1, 3
jaroslav@46:         );
jaroslav@46:     }
jaroslav@7:     @Test public void and() throws Exception {
jaroslav@7:         assertExec(
jaroslav@7:             "And will be 3",
jaroslav@248:             StaticMethod.class, "orOrAnd__JZII",
jaroslav@7:             Double.valueOf(3),
jaroslav@7:             false,
jaroslav@7:             7,
jaroslav@7:             3
jaroslav@7:         );
jaroslav@7:     }
jaroslav@9:     @Test public void inc4() throws Exception {
jaroslav@9:         assertExec(
jaroslav@9:             "It will be 4",
jaroslav@248:             StaticMethod.class, "inc4__I",
jaroslav@9:             Double.valueOf(4)
jaroslav@9:         );
jaroslav@9:     }
jaroslav@7:     
jaroslav@93:     @Test public void shiftLeftInJava() throws Exception {
jaroslav@93:         int res = StaticMethod.shiftLeft(1, 8);
jaroslav@93:         assertEquals(res, 256);
jaroslav@93:     }
jaroslav@93: 
jaroslav@93:     @Test public void shiftLeftInJS() throws Exception {
jaroslav@93:         assertExec(
jaroslav@93:             "Setting 9th bit",
jaroslav@248:             StaticMethod.class, "shiftLeft__III",
jaroslav@93:             Double.valueOf(256),
jaroslav@93:             1, 8
jaroslav@93:         );
jaroslav@93:     }
jaroslav@93: 
jaroslav@93:     @Test public void shiftRightInJava() throws Exception {
jaroslav@93:         int res = StaticMethod.shiftArithmRight(-8, 3, true);
jaroslav@93:         assertEquals(res, -1);
jaroslav@93:     }
jaroslav@93: 
jaroslav@93:     @Test public void shiftRightInJS() throws Exception {
jaroslav@93:         assertExec(
jaroslav@93:             "Get -1",
jaroslav@248:             StaticMethod.class, "shiftArithmRight__IIIZ",
jaroslav@93:             Double.valueOf(-1),
jaroslav@93:             -8, 3, true
jaroslav@93:         );
jaroslav@93:     }
jaroslav@93:     @Test public void unsignedShiftRightInJava() throws Exception {
jaroslav@93:         int res = StaticMethod.shiftArithmRight(8, 3, false);
jaroslav@93:         assertEquals(res, 1);
jaroslav@93:     }
jaroslav@93: 
jaroslav@93:     @Test public void unsignedShiftRightInJS() throws Exception {
jaroslav@93:         assertExec(
jaroslav@93:             "Get -1",
jaroslav@248:             StaticMethod.class, "shiftArithmRight__IIIZ",
jaroslav@93:             Double.valueOf(1),
jaroslav@93:             8, 3, false
jaroslav@93:         );
jaroslav@93:     }
jaroslav@93:     
jaroslav@94:     @Test public void javaScriptBody() throws Exception {
jaroslav@94:         assertExec(
jaroslav@94:             "JavaScript string",
jaroslav@248:             StaticMethod.class, "i2s__Ljava_lang_String_2II",
jaroslav@94:             "333",
jaroslav@99:             330, 3
jaroslav@94:         );
jaroslav@94:     }
jaroslav@94:     
jaroslav@115:     @Test public void switchJarda() throws Exception {
jaroslav@115:         assertExec(
jaroslav@115:             "The expected value",
jaroslav@248:             StaticMethod.class, "swtch__Ljava_lang_String_2I",
jaroslav@115:             "Jarda",
jaroslav@115:             0
jaroslav@115:         );
jaroslav@115:     }
jaroslav@115:     
jaroslav@115:     @Test public void switchDarda() throws Exception {
jaroslav@115:         assertExec(
jaroslav@115:             "The expected value",
jaroslav@248:             StaticMethod.class, "swtch__Ljava_lang_String_2I",
jaroslav@115:             "Darda",
jaroslav@115:             1
jaroslav@115:         );
jaroslav@115:     }
jaroslav@115:     @Test public void switchParda() throws Exception {
jaroslav@115:         assertExec(
jaroslav@115:             "The expected value",
jaroslav@248:             StaticMethod.class, "swtch2__Ljava_lang_String_2I",
jaroslav@115:             "Parda",
jaroslav@115:             22
jaroslav@115:         );
jaroslav@115:     }
jaroslav@115:     @Test public void switchMarda() throws Exception {
jaroslav@115:         assertExec(
jaroslav@115:             "The expected value",
jaroslav@248:             StaticMethod.class, "swtch__Ljava_lang_String_2I",
jaroslav@115:             "Marda",
jaroslav@115:             -433
jaroslav@115:         );
jaroslav@115:     }
jaroslav@115:     
jaroslav@103:     private static CharSequence codeSeq;
jaroslav@103:     private static Invocable code;
jaroslav@103:     
jaroslav@103:     @BeforeClass 
jaroslav@103:     public void compileTheCode() throws Exception {
jaroslav@103:         StringBuilder sb = new StringBuilder();
jaroslav@103:         code = compileClass(sb, "org/apidesign/vm4brwsr/StaticMethod");
jaroslav@103:         codeSeq = sb;
jaroslav@103:     }
jaroslav@103:     
jaroslav@103:     
jaroslav@203:     private static void assertExec(
jaroslav@203:         String msg, Class clazz, String method, 
jaroslav@203:         Object expRes, Object... args
jaroslav@203:     ) throws Exception {
jaroslav@203:         assertExec(code, codeSeq, msg, clazz, method, expRes, args);
jaroslav@203:     }
jaroslav@203:     static void assertExec(
jaroslav@203:         Invocable toRun, CharSequence theCode,
jaroslav@203:         String msg, Class clazz, String method, 
jaroslav@203:         Object expRes, Object... args
jaroslav@203:     ) throws Exception {
jaroslav@2:         Object ret = null;
jaroslav@2:         try {
jaroslav@205:             ret = toRun.invokeFunction(clazz.getName().replace('.', '_'), true);
jaroslav@203:             ret = toRun.invokeMethod(ret, method, args);
jaroslav@5:         } catch (ScriptException ex) {
jaroslav@203:             fail("Execution failed in\n" + dumpJS(theCode), ex);
jaroslav@2:         } catch (NoSuchMethodException ex) {
jaroslav@203:             fail("Cannot find method in\n" + dumpJS(theCode), ex);
jaroslav@2:         }
jaroslav@2:         if (ret == null && expRes == null) {
jaroslav@2:             return;
jaroslav@2:         }
jaroslav@46:         if (expRes != null && expRes.equals(ret)) {
jaroslav@2:             return;
jaroslav@2:         }
jaroslav@203:         assertEquals(ret, expRes, msg + "was: " + ret + "\n" + dumpJS(theCode));
jaroslav@2:         
jaroslav@2:     }
jaroslav@2: 
jaroslav@13:     static Invocable compileClass(StringBuilder sb, String... names) throws ScriptException, IOException {
jaroslav@201:         return compileClass(sb, null, names);
jaroslav@201:     }
jaroslav@201:     static Invocable compileClass(
jaroslav@201:         StringBuilder sb, ScriptEngine[] eng, String... names
jaroslav@201:     ) throws ScriptException, IOException {
jaroslav@19:         if (sb == null) {
jaroslav@19:             sb = new StringBuilder();
jaroslav@19:         }
jaroslav@29:         GenJS.compile(sb, names);
jaroslav@0:         ScriptEngineManager sem = new ScriptEngineManager();
jaroslav@0:         ScriptEngine js = sem.getEngineByExtension("js");
jaroslav@201:         if (eng != null) {
jaroslav@201:             eng[0] = js;
jaroslav@201:         }
jaroslav@0:         try {
jaroslav@0:             Object res = js.eval(sb.toString());
jaroslav@0:             assertTrue(js instanceof Invocable, "It is invocable object: " + res);
jaroslav@0:             return (Invocable)js;
jaroslav@137:         } catch (Exception ex) {
jaroslav@137:             if (sb.length() > 2000) {
jtulach@190:                 sb = dumpJS(sb);
jaroslav@137:             }
jaroslav@203:             fail("Could not evaluate:\n" + sb, ex);
jaroslav@0:             return null;
jaroslav@0:         }
jaroslav@0:     }
jtulach@190:     static StringBuilder dumpJS(CharSequence sb) throws IOException {
jaroslav@172:         File f = File.createTempFile("execution", ".js");
jaroslav@172:         FileWriter w = new FileWriter(f);
jaroslav@172:         w.append(sb);
jaroslav@172:         w.close();
jtulach@190:         return new StringBuilder(f.getPath());
jaroslav@172:     }
jaroslav@0: }