Verifying a parameter to a method can be GCed by a test that is passing. Verifying the knockout model sticks in a memory when no longer needed by a failing test. gc
authorJaroslav Tulach <jtulach@netbeans.org>
Mon, 10 Nov 2014 18:28:45 +0100
branchgc
changeset 8676ed4df4c1e29
parent 866 3499df087dc3
child 868 e71705af0948
Verifying a parameter to a method can be GCed by a test that is passing. Verifying the knockout model sticks in a memory when no longer needed by a failing test.
json-tck/src/main/java/net/java/html/js/tests/Bodies.java
json-tck/src/main/java/net/java/html/js/tests/JavaScriptBodyTest.java
json-tck/src/main/java/net/java/html/json/tests/GCTest.java
json-tck/src/main/java/org/netbeans/html/json/tck/KnockoutTCK.java
     1.1 --- a/json-tck/src/main/java/net/java/html/js/tests/Bodies.java	Sun Nov 09 16:07:41 2014 +0100
     1.2 +++ b/json-tck/src/main/java/net/java/html/js/tests/Bodies.java	Mon Nov 10 18:28:45 2014 +0100
     1.3 @@ -172,6 +172,15 @@
     1.4      )
     1.5      static native Object[] forIn(Object[] in);
     1.6  
     1.7 +    @JavaScriptBody(args = { "max" }, body = 
     1.8 +        "var arr = [];\n"
     1.9 +      + "for (var i = 0; i < max; i++) {\n"
    1.10 +      + "  arr.push(i);\n"
    1.11 +      + "}\n"
    1.12 +      + "return arr.length;"
    1.13 +    )
    1.14 +    static native int gc(double max);
    1.15 +
    1.16      @JavaScriptBody(args = {}, javacall = true, body = 
    1.17          "return @net.java.html.js.tests.Bodies::problematicString()();"
    1.18      )
     2.1 --- a/json-tck/src/main/java/net/java/html/js/tests/JavaScriptBodyTest.java	Sun Nov 09 16:07:41 2014 +0100
     2.2 +++ b/json-tck/src/main/java/net/java/html/js/tests/JavaScriptBodyTest.java	Mon Nov 10 18:28:45 2014 +0100
     2.3 @@ -43,6 +43,8 @@
     2.4  package net.java.html.js.tests;
     2.5  
     2.6  import java.io.StringReader;
     2.7 +import java.lang.ref.Reference;
     2.8 +import java.lang.ref.WeakReference;
     2.9  import java.util.Arrays;
    2.10  import java.util.concurrent.Callable;
    2.11  import org.netbeans.html.boot.spi.Fn;
    2.12 @@ -211,9 +213,13 @@
    2.13          assert b == Boolean.TRUE : "Should return true";
    2.14      }
    2.15      
    2.16 -    @KOTest public void callbackWithParameters() {
    2.17 -        int res = Bodies.sumIndirect(new Sum());
    2.18 +    @KOTest public void callbackWithParameters() throws InterruptedException {
    2.19 +        Sum s = new Sum();
    2.20 +        int res = Bodies.sumIndirect(s);
    2.21          assert res == 42 : "Expecting 42";
    2.22 +        Reference<?> ref = new WeakReference<Object>(s);
    2.23 +        s = null;
    2.24 +        assertGC(ref, "Can disappear!");
    2.25      }
    2.26      
    2.27      @KOTest public void selectFromStringJavaArray() {
    2.28 @@ -401,4 +407,20 @@
    2.29              return Boolean.TRUE;
    2.30          }
    2.31      }
    2.32 +    
    2.33 +    private static void assertGC(Reference<?> ref, String msg) throws InterruptedException {
    2.34 +        for (int i = 0; i < 100; i++) {
    2.35 +            if (ref.get() == null) {
    2.36 +                return;
    2.37 +            }
    2.38 +            int size = Bodies.gc(Math.pow(2.0, i));
    2.39 +            try {
    2.40 +                System.gc();
    2.41 +                System.runFinalization();
    2.42 +            } catch (Error err) {
    2.43 +                err.printStackTrace();
    2.44 +            }
    2.45 +        }
    2.46 +        throw new OutOfMemoryError(msg);
    2.47 +    }
    2.48  }
     3.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     3.2 +++ b/json-tck/src/main/java/net/java/html/json/tests/GCTest.java	Mon Nov 10 18:28:45 2014 +0100
     3.3 @@ -0,0 +1,113 @@
     3.4 +/**
     3.5 + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
     3.6 + *
     3.7 + * Copyright 2013-2014 Oracle and/or its affiliates. All rights reserved.
     3.8 + *
     3.9 + * Oracle and Java are registered trademarks of Oracle and/or its affiliates.
    3.10 + * Other names may be trademarks of their respective owners.
    3.11 + *
    3.12 + * The contents of this file are subject to the terms of either the GNU
    3.13 + * General Public License Version 2 only ("GPL") or the Common
    3.14 + * Development and Distribution License("CDDL") (collectively, the
    3.15 + * "License"). You may not use this file except in compliance with the
    3.16 + * License. You can obtain a copy of the License at
    3.17 + * http://www.netbeans.org/cddl-gplv2.html
    3.18 + * or nbbuild/licenses/CDDL-GPL-2-CP. See the License for the
    3.19 + * specific language governing permissions and limitations under the
    3.20 + * License.  When distributing the software, include this License Header
    3.21 + * Notice in each file and include the License file at
    3.22 + * nbbuild/licenses/CDDL-GPL-2-CP.  Oracle designates this
    3.23 + * particular file as subject to the "Classpath" exception as provided
    3.24 + * by Oracle in the GPL Version 2 section of the License file that
    3.25 + * accompanied this code. If applicable, add the following below the
    3.26 + * License Header, with the fields enclosed by brackets [] replaced by
    3.27 + * your own identifying information:
    3.28 + * "Portions Copyrighted [year] [name of copyright owner]"
    3.29 + *
    3.30 + * Contributor(s):
    3.31 + *
    3.32 + * The Original Software is NetBeans. The Initial Developer of the Original
    3.33 + * Software is Oracle. Portions Copyright 2013-2014 Oracle. All Rights Reserved.
    3.34 + *
    3.35 + * If you wish your version of this file to be governed by only the CDDL
    3.36 + * or only the GPL Version 2, indicate your decision by adding
    3.37 + * "[Contributor] elects to include this software in this distribution
    3.38 + * under the [CDDL or GPL Version 2] license." If you do not indicate a
    3.39 + * single choice of license, a recipient has the option to distribute
    3.40 + * your version of this file under either the CDDL, the GPL Version 2 or
    3.41 + * to extend the choice of license to its licensees as provided above.
    3.42 + * However, if you add GPL Version 2 code and therefore, elected the GPL
    3.43 + * Version 2 license, then the option applies only if the new code is
    3.44 + * made subject to such option by the copyright holder.
    3.45 + */
    3.46 +package net.java.html.json.tests;
    3.47 +
    3.48 +import java.lang.ref.Reference;
    3.49 +import java.lang.ref.WeakReference;
    3.50 +import net.java.html.BrwsrCtx;
    3.51 +import net.java.html.json.Model;
    3.52 +import net.java.html.json.Models;
    3.53 +import net.java.html.json.Property;
    3.54 +import org.netbeans.html.json.tck.KOTest;
    3.55 +
    3.56 +@Model(className = "GC", properties = {
    3.57 +    @Property(name = "all", type = Fullname.class, array = true)
    3.58 +})
    3.59 +public class GCTest {
    3.60 +    @Model(className = "Fullname", properties = {
    3.61 +        @Property(name = "firstName", type = String.class),
    3.62 +        @Property(name = "lastName", type = String.class)
    3.63 +    })
    3.64 +    static class FullnameCntrl {
    3.65 +    }
    3.66 +    
    3.67 +    @KOTest public void noLongerNeededArrayElementsCanDisappear() throws Exception {
    3.68 +        BrwsrCtx ctx = Utils.newContext(GCTest.class);
    3.69 +        Object exp = Utils.exposeHTML(GCTest.class,
    3.70 +            "<ul id='ul' data-bind='foreach: all'>\n"
    3.71 +            + "  <li data-bind='text: firstName'/>\n"
    3.72 +            + "</ul>\n"
    3.73 +        );
    3.74 +        GC m = Models.bind(new GC(), ctx);
    3.75 +        m.getAll().add(new Fullname("Jarda", "Tulach"));
    3.76 +        m.applyBindings();
    3.77 +
    3.78 +        int cnt = Utils.countChildren(GCTest.class, "ul");
    3.79 +        assert cnt == 1 : "One child, but was " + cnt;
    3.80 +
    3.81 +        m.getAll().add(new Fullname("HTML", "Java"));
    3.82 +        
    3.83 +        cnt = Utils.countChildren(GCTest.class, "ul");
    3.84 +        assert cnt == 2 : "Now two " + cnt;
    3.85 +        
    3.86 +        Fullname removed = m.getAll().get(0);
    3.87 +        m.getAll().remove(0);
    3.88 +        
    3.89 +        cnt = Utils.countChildren(GCTest.class, "ul");
    3.90 +        assert cnt == 1 : "Again One " + cnt;
    3.91 +        
    3.92 +        Reference<?> ref = new WeakReference<Object>(removed);
    3.93 +        removed = null;
    3.94 +        assertGC(ref, "Can removed object disappear?");
    3.95 +    }
    3.96 +    
    3.97 +    private void assertGC(Reference<?> ref, String msg) throws Exception {
    3.98 +        for (int i = 0; i < 100; i++) {
    3.99 +            if (ref.get() == null) {
   3.100 +                return;
   3.101 +            }
   3.102 +            String gc = "var max = arguments[0];\n"
   3.103 +                    +  "var arr = [];\n"
   3.104 +                    + "for (var i = 0; i < max; i++) {\n"
   3.105 +                    + "  arr.push(i);\n"
   3.106 +                    + "}\n"
   3.107 +                    + "return arr.length;";
   3.108 +            Object cnt = Utils.executeScript(GCTest.class, gc, Math.pow(2.0, i));
   3.109 +            System.err.println("cnt: " + cnt);
   3.110 +            System.gc();
   3.111 +            System.runFinalization();
   3.112 +        }
   3.113 +        throw new OutOfMemoryError(msg);
   3.114 +    }
   3.115 +    
   3.116 +}
     4.1 --- a/json-tck/src/main/java/org/netbeans/html/json/tck/KnockoutTCK.java	Sun Nov 09 16:07:41 2014 +0100
     4.2 +++ b/json-tck/src/main/java/org/netbeans/html/json/tck/KnockoutTCK.java	Mon Nov 10 18:28:45 2014 +0100
     4.3 @@ -46,6 +46,7 @@
     4.4  import java.util.Map;
     4.5  import net.java.html.BrwsrCtx;
     4.6  import net.java.html.json.tests.ConvertTypesTest;
     4.7 +import net.java.html.json.tests.GCTest;
     4.8  import net.java.html.json.tests.JSONTest;
     4.9  import net.java.html.json.tests.KnockoutTest;
    4.10  import net.java.html.json.tests.MinesTest;
    4.11 @@ -124,7 +125,8 @@
    4.12              KnockoutTest.class,
    4.13              MinesTest.class,
    4.14              OperationsTest.class,
    4.15 -            WebSocketTest.class
    4.16 +            WebSocketTest.class,
    4.17 +            GCTest.class
    4.18          };
    4.19      }
    4.20