hg/bck2brwsr: rt/vmtest/src/test/java/org/apidesign/bck2brwsr/tck/ReflectionTest.java@a13e33fd5c2e

     1 /**

     2  * Back 2 Browser Bytecode Translator

     3  * Copyright (C) 2012 Jaroslav Tulach <jaroslav.tulach@apidesign.org>

     4  *

     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.

     8  *

     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.

    13  *

    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.

    17  */

    18 package org.apidesign.bck2brwsr.tck;

    20 import java.lang.annotation.Retention;

    21 import java.lang.annotation.RetentionPolicy;

    22 import java.lang.reflect.Method;

    23 import java.util.Arrays;

    24 import java.util.Collections;

    25 import java.util.List;

    26 import org.apidesign.bck2brwsr.core.JavaScriptBody;

    27 import org.apidesign.bck2brwsr.vmtest.Compare;

    28 import org.apidesign.bck2brwsr.vmtest.VMTest;

    29 import org.testng.annotations.Factory;

    31 /**

    32  *

    33  * @author Jaroslav Tulach <jtulach@netbeans.org>

    34  */

    35 public class ReflectionTest {

    36     @Compare public boolean nonNullThis() {

    37         return this == null;

    38     }

    40     @Compare public String intType() {

    41         return Integer.TYPE.toString();

    42     }

    44     @Compare public String voidType() throws Exception {

    45         return void.class.toString();

    46     }

    48     @Compare public String longClass() {

    49         return long.class.toString();

    50     }

    52     @Compare public boolean isRunnableInterface() {

    53         return Runnable.class.isInterface();

    54     }

    56     @Compare public String isRunnableHasRunMethod() throws NoSuchMethodException {

    57         return Runnable.class.getMethod("run").getName();

    58     }

    60     @Compare public String namesOfMethods() {

    61         StringBuilder sb = new StringBuilder();

    62         String[] arr = new String[20];

    63         int i = 0;

    64         for (Method m : StaticUse.class.getMethods()) {

    65             arr[i++] = m.getName();

    66         }

    67         for (String s : sort(arr, i)) {

    68             sb.append(s).append("\n");

    69         }

    70         return sb.toString();

    71     }

    73     @Compare public String namesOfDeclaringClassesOfMethods() {

    74         StringBuilder sb = new StringBuilder();

    75         String[] arr = new String[20];

    76         int i = 0;

    77         for (Method m : StaticUse.class.getMethods()) {

    78             arr[i++] = m.getName() + "@" + m.getDeclaringClass().getName();

    79         }

    80         for (String s : sort(arr, i)) {

    81             sb.append(s).append("\n");

    82         }

    83         return sb.toString();

    84     }

    86     @Compare public String cannotCallNonStaticMethodWithNull() throws Exception {

    87         StaticUse.class.getMethod("instanceMethod").invoke(null);

    88         return "should not happen";

    89     }

    91     @Compare public Object voidReturnType() throws Exception {

    92         return StaticUse.class.getMethod("instanceMethod").getReturnType();

    93     }

    95     @Retention(RetentionPolicy.RUNTIME)

    96     @interface Ann {

    97     }

    99     @Compare public String annoClass() throws Exception {

   100         Retention r = Ann.class.getAnnotation(Retention.class);

   101         assert r != null : "Annotation is present";

   102         assert r.value() == RetentionPolicy.RUNTIME : "Policy value is OK: " + r.value();

   103         return r.annotationType().getName();

   104     }

   106     @Compare public boolean isAnnotation() {

   107         return Ann.class.isAnnotation();

   108     }

   109     @Compare public boolean isNotAnnotation() {

   110         return String.class.isAnnotation();

   111     }

   112     @Compare public boolean isNotAnnotationEnum() {

   113         return E.class.isAnnotation();

   114     }

   115     enum E { A, B };

   116     @Compare public boolean isEnum() {

   117         return E.A.getClass().isEnum();

   118     }

   120     @Compare public boolean isNotEnum() {

   121         return "".getClass().isEnum();

   122     }

   124     @Compare public String newInstanceFails() throws InstantiationException {

   125         try {

   126             return "success: " + StaticUseSub.class.newInstance();

   127         } catch (IllegalAccessException ex) {

   128             return ex.getClass().getName();

   129         }

   130     }

   132     @Compare public String paramTypes() throws Exception {

   133         Method plus = StaticUse.class.getMethod("plus", int.class, Integer.TYPE);

   134         final Class[] pt = plus.getParameterTypes();

   135         return pt[0].getName();

   136     }

   137     @Compare public String paramTypesNotFound() throws Exception {

   138         return StaticUse.class.getMethod("plus", int.class, double.class).toString();

   139     }

   140     @Compare public int methodWithArgs() throws Exception {

   141         Method plus = StaticUse.class.getMethod("plus", int.class, Integer.TYPE);

   142         return (Integer)plus.invoke(null, 2, 3);

   143     }

   145     @Compare public String classGetNameForByte() {

   146          return byte.class.getName();

   147     }

   148     @Compare public String classGetNameForBaseObject() {

   149         return newObject().getClass().getName();

   150     }

   151     @Compare public String classGetNameForJavaObject() {

   152         return new Object().getClass().getName();

   153     }

   154     @Compare public String classGetNameForObjectArray() {

   155         return (new Object[3]).getClass().getName();

   156     }

   157     @Compare public String classGetNameForSimpleIntArray() {

   158         return (new int[3]).getClass().getName();

   159     }

   160     @Compare public boolean sameClassGetNameForSimpleCharArray() {

   161         return (new char[3]).getClass() == (new char[34]).getClass();

   162     }

   163     @Compare public String classGetNameForMultiIntArray() {

   164         return (new int[3][4][5][6][7][8][9]).getClass().getName();

   165     }

   166     @Compare public String classGetNameForMultiIntArrayInner() {

   167         final int[][][][][][][] arr = new int[3][4][5][6][7][8][9];

   168         int[][][][][][] subarr = arr[0];

   169         int[][][][][] subsubarr = subarr[0];

   170         return subsubarr.getClass().getName();

   171     }

   172     @Compare public String classGetNameForMultiStringArray() {

   173         return (new String[3][4][5][6][7][8][9]).getClass().getName();

   174     }

   176     @Compare public String classForByte() throws Exception {

   177         return Class.forName("[Z").getName();

   178     }

   180     @Compare public String classForUnknownArray() {

   181         try {

   182             return Class.forName("[W").getName();

   183         } catch (Exception ex) {

   184             return ex.getClass().getName();

   185         }

   186     }

   188     @Compare public String classForUnknownDeepArray() {

   189         try {

   190             return Class.forName("[[[[[W").getName();

   191         } catch (Exception ex) {

   192             return ex.getClass().getName();

   193         }

   194     }

   196     @Compare public String componentGetNameForObjectArray() {

   197         return (new Object[3]).getClass().getComponentType().getName();

   198     }

   199     @Compare public boolean sameComponentGetNameForObjectArray() {

   200         return (new Object[3]).getClass().getComponentType() == Object.class;

   201     }

   202     @Compare public String componentGetNameForSimpleIntArray() {

   203         return (new int[3]).getClass().getComponentType().getName();

   204     }

   205     @Compare public String componentGetNameForMultiIntArray() {

   206         return (new int[3][4][5][6][7][8][9]).getClass().getComponentType().getName();

   207     }

   208     @Compare public String componentGetNameForMultiStringArray() {

   209         Class<?> c = (new String[3][4][5][6][7][8][9]).getClass();

   210         StringBuilder sb = new StringBuilder();

   211         for (;;) {

   212             sb.append(c.getName()).append("\n");

   213             c = c.getComponentType();

   214             if (c == null) {

   215                 break;

   216             }

   217         }

   218         return sb.toString();

   219     }

   221     @Compare public boolean isArray() {

   222         return new Object[0].getClass().isArray();

   223     }

   225     @JavaScriptBody(args = { "arr", "len" }, body="var a = arr.slice(0, len); a.sort(); return a;")

   226     private static String[] sort(String[] arr, int len) {

   227         List<String> list = Arrays.asList(arr).subList(0, len);

   228         Collections.sort(list);

   229         return list.toArray(new String[0]);

   230     }

   232     @JavaScriptBody(args = {}, body = "return new Object();")

   233     private static Object newObject() {

   234         return new Object();

   235     }

   237     @Factory

   238     public static Object[] create() {

   239         return VMTest.create(ReflectionTest.class);

   240     }

   242 }

author	Jaroslav Tulach <jaroslav.tulach@apidesign.org>
	Wed, 27 Feb 2013 14:38:16 +0100
changeset 775	a13e33fd5c2e
parent 772	d382dacfd73f
child 886	88540bb74300
permissions	-rw-r--r--