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rt/vmtest/src/test/java/org/apidesign/bck2brwsr/tck/ReflectionTest.java
author Jaroslav Tulach <jaroslav.tulach@apidesign.org>
Sun, 07 Apr 2013 15:24:45 +0200
branchmodel
changeset 938 0eec1b51c13c
parent 886 88540bb74300
child 962 787578f33c21
permissions -rw-r--r--
Wrap invoke exceptions into InvocationTargetException 
     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;

    19 

    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;

    30 

    31 /**

    32  *

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

    34  */

    35 public class ReflectionTest {

    36     @Compare public boolean nonNullThis() {

    37         return this == null;

    38     }

    39     

    40     @Compare public String intType() {

    41         return Integer.TYPE.toString();

    42     }

    43 

    44     @Compare public String voidType() throws Exception {

    45         return void.class.toString();

    46     }

    47 

    48     @Compare public String longClass() {

    49         return long.class.toString();

    50     }

    51     

    52     @Compare public boolean isRunnableInterface() {

    53         return Runnable.class.isInterface();

    54     }

    55 

    56     @Compare public boolean isAssignableToPrimitiveType() {

    57         return boolean.class.isAssignableFrom(Runnable.class);

    58     }

    59 

    60     @Compare public boolean isAssignableFromPrimitiveType() {

    61         return Runnable.class.isAssignableFrom(boolean.class);

    62     }

    63 

    64     @Compare public boolean isAssignableLongFromInt() {

    65         return long.class.isAssignableFrom(int.class);

    66     }

    67 

    68     @Compare public boolean isAssignableIntFromLong() {

    69         return int.class.isAssignableFrom(long.class);

    70     }

    71 

    72     @Compare public String isRunnableHasRunMethod() throws NoSuchMethodException {

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

    74     }

    75     

    76     @Compare public String namesOfMethods() {

    77         StringBuilder sb = new StringBuilder();

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

    79         int i = 0;

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

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

    82         }

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

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

    85         }

    86         return sb.toString();

    87     }

    88 

    89     @Compare public String namesOfDeclaringClassesOfMethods() {

    90         StringBuilder sb = new StringBuilder();

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

    92         int i = 0;

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

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

    95         }

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

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

    98         }

    99         return sb.toString();

   100     }

   101     

   102     @Compare public String cannotCallNonStaticMethodWithNull() throws Exception {

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

   104         return "should not happen";

   105     }

   106 

   107     @Compare public String methodThatThrowsException() throws Exception {

   108         StaticUse.class.getMethod("instanceMethod").invoke(new StaticUse());

   109         return "should not happen";

   110     }

   111 

   112     @Compare public Object voidReturnType() throws Exception {

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

   114     }

   115     

   116     @Retention(RetentionPolicy.RUNTIME)

   117     @interface Ann {

   118     }

   119     

   120     @Compare public String annoClass() throws Exception {

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

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

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

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

   125     }

   126     

   127     @Compare public boolean isAnnotation() {

   128         return Ann.class.isAnnotation();

   129     }

   130     @Compare public boolean isNotAnnotation() {

   131         return String.class.isAnnotation();

   132     }

   133     @Compare public boolean isNotAnnotationEnum() {

   134         return E.class.isAnnotation();

   135     }

   136     enum E { A, B };

   137     @Compare public boolean isEnum() {

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

   139     }

   140 

   141     @Compare public boolean isNotEnum() {

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

   143     }

   144     

   145     @Compare public String newInstanceFails() throws InstantiationException {

   146         try {

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

   148         } catch (IllegalAccessException ex) {

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

   150         }

   151     }

   152     

   153     @Compare public String paramTypes() throws Exception {

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

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

   156         return pt[0].getName();

   157     }

   158     @Compare public String paramTypesNotFound() throws Exception {

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

   160     }

   161     @Compare public int methodWithArgs() throws Exception {

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

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

   164     }

   165     

   166     @Compare public String classGetNameForByte() {

   167          return byte.class.getName();

   168     }

   169     @Compare public String classGetNameForBaseObject() {

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

   171     }

   172     @Compare public String classGetNameForJavaObject() {

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

   174     }

   175     @Compare public String classGetNameForObjectArray() {

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

   177     }

   178     @Compare public String classGetNameForSimpleIntArray() {

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

   180     }

   181     @Compare public boolean sameClassGetNameForSimpleCharArray() {

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

   183     }

   184     @Compare public String classGetNameForMultiIntArray() {

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

   186     }

   187     @Compare public String classGetNameForMultiIntArrayInner() {

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

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

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

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

   192     }

   193     @Compare public String classGetNameForMultiStringArray() {

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

   195     }

   196     

   197     @Compare public String classForByte() throws Exception {

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

   199     }

   200 

   201     @Compare public String classForUnknownArray() {

   202         try {

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

   204         } catch (Exception ex) {

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

   206         }

   207     }

   208     

   209     @Compare public String classForUnknownDeepArray() {

   210         try {

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

   212         } catch (Exception ex) {

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

   214         }

   215     }

   216     

   217     @Compare public String componentGetNameForObjectArray() {

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

   219     }

   220     @Compare public boolean sameComponentGetNameForObjectArray() {

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

   222     }

   223     @Compare public String componentGetNameForSimpleIntArray() {

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

   225     }

   226     @Compare public String componentGetNameForMultiIntArray() {

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

   228     }

   229     @Compare public String componentGetNameForMultiStringArray() {

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

   231         StringBuilder sb = new StringBuilder();

   232         for (;;) {

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

   234             c = c.getComponentType();

   235             if (c == null) {

   236                 break;

   237             }

   238         }

   239         return sb.toString();

   240     }

   241     

   242     @Compare public boolean isArray() {

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

   244     }

   245     

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

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

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

   249         Collections.sort(list);

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

   251     }

   252     

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

   254     private static Object newObject() {

   255         return new Object();

   256     }

   257     

   258     @Factory

   259     public static Object[] create() {

   260         return VMTest.create(ReflectionTest.class);

   261     }

   262     

   263 }
hg/bck2brwsr