2.1/user/test/com/google/gwt/dev/jjs/test/MiscellaneousTest.java - gwt - Git at Google

 /*
  * Copyright 2008 Google Inc.
  *
  * Licensed under the Apache License, Version 2.0 (the "License"); you may not
  * use this file except in compliance with the License. You may obtain a copy of
  * the License at
  *
  * http://www.apache.org/licenses/LICENSE-2.0
  *
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
  * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
  * License for the specific language governing permissions and limitations under
  * the License.
  */
 package com.google.gwt.dev.jjs.test;

 import com.google.gwt.core.client.JavaScriptException;
 import com.google.gwt.junit.client.GWTTestCase;

 /**
  * This should probably be refactored at some point.
  */
 public class MiscellaneousTest extends GWTTestCase {

   interface I {
   }

   interface IBar extends I {
   }

   interface IFoo extends I {
   }

   static class PolyA implements IFoo {
     public String toString() {
       return "A";
     }
   }

   static class PolyB implements IBar {
     public String toString() {
       return "B";
     }
   }

   private static class HasClinit {
     public static int i = 1;

     private static HasClinit sInstance = new HasClinit();

     public static int sfoo() {
       return sInstance.foo();
     }

     private static native void clinitInNative() /*-{
     }-*/;

     private int foo() {
       this.toString();
       return 3;
     }
   }

   private static volatile boolean FALSE = false;

   private static volatile boolean TRUE = true;

   private static void assertAllCanStore(Object[] dest, Object[] src) {
     for (int i = 0; i < src.length; ++i) {
       dest[0] = src[i];
     }
   }

   private static void assertNoneCanStore(Object[] dest, Object[] src) {
     for (int i = 0; i < src.length; ++i) {
       try {
         dest[0] = src[i];
         fail();
       } catch (ArrayStoreException e) {
       }
     }
   }

   private static native void clinitFromNative() /*-{
     @com.google.gwt.dev.jjs.test.MiscellaneousTest$HasClinit::i = 5;
   }-*/;

   private static native void noOp() /*-{
   }-*/;

   private static native void throwNativeException() /*-{
     var a; a.asdf();
   }-*/;

   public String getModuleName() {
     return "com.google.gwt.dev.jjs.CompilerSuite";
   }

   public void testArrayCasts() {
     {
       // thwart optimizer
       Object f1 = FALSE ? (Object) new PolyA() : (Object) new IFoo[1];
       if (expectClassMetadata()) {
         assertEquals("[Lcom.google.gwt.dev.jjs.test.MiscellaneousTest$IFoo;",
             f1.getClass().getName());
       }
       assertFalse(f1 instanceof PolyA[][]);
       assertFalse(f1 instanceof IFoo[][]);
       assertFalse(f1 instanceof PolyA[]);
       assertTrue(f1 instanceof IFoo[]);
       assertFalse(f1 instanceof PolyA);
       assertFalse(f1 instanceof IFoo);
       assertTrue(f1 instanceof Object[]);
       assertFalse(f1 instanceof Object[][]);

       assertAllCanStore((Object[]) f1, new Object[] {new PolyA(), new IFoo() {
       }});
       assertNoneCanStore((Object[]) f1, new Object[] {
           new PolyB(), new Object(), new Object[0]});
     }

     {
       // thwart optimizer
       Object a1 = FALSE ? (Object) new PolyA() : (Object) new PolyA[1];
       if (expectClassMetadata()) {
         assertEquals("[Lcom.google.gwt.dev.jjs.test.MiscellaneousTest$PolyA;",
             a1.getClass().getName());
       }
       assertFalse(a1 instanceof PolyA[][]);
       assertFalse(a1 instanceof IFoo[][]);
       assertTrue(a1 instanceof PolyA[]);
       assertTrue(a1 instanceof IFoo[]);
       assertFalse(a1 instanceof PolyA);
       assertFalse(a1 instanceof IFoo);
       assertTrue(a1 instanceof Object[]);
       assertFalse(a1 instanceof Object[][]);

       assertAllCanStore((Object[]) a1, new Object[] {new PolyA()});
       assertNoneCanStore((Object[]) a1, new Object[] {new IFoo() {
       }, new PolyB(), new Object(), new Object[0]});
     }

     {
       // thwart optimizer
       Object f2 = FALSE ? (Object) new PolyA() : (Object) new IFoo[1][];
       if (expectClassMetadata()) {
         assertEquals("[[Lcom.google.gwt.dev.jjs.test.MiscellaneousTest$IFoo;",
             f2.getClass().getName());
       }
       assertFalse(f2 instanceof PolyA[][]);
       assertTrue(f2 instanceof IFoo[][]);
       assertFalse(f2 instanceof PolyA[]);
       assertFalse(f2 instanceof IFoo[]);
       assertFalse(f2 instanceof PolyA);
       assertFalse(f2 instanceof IFoo);
       assertTrue(f2 instanceof Object[]);
       assertTrue(f2 instanceof Object[][]);

       assertAllCanStore((Object[]) f2, new Object[] {new PolyA[0], new IFoo[0]});
       assertNoneCanStore((Object[]) f2, new Object[] {new IFoo() {
       }, new PolyB(), new Object(), new Object[0]});
     }

     {
       // thwart optimizer
       Object a2 = FALSE ? (Object) new PolyA() : (Object) new PolyA[1][];
       if (expectClassMetadata()) {
         assertEquals("[[Lcom.google.gwt.dev.jjs.test.MiscellaneousTest$PolyA;",
             a2.getClass().getName());
       }
       assertTrue(a2 instanceof PolyA[][]);
       assertTrue(a2 instanceof IFoo[][]);
       assertFalse(a2 instanceof PolyA[]);
       assertFalse(a2 instanceof IFoo[]);
       assertFalse(a2 instanceof PolyA);
       assertFalse(a2 instanceof IFoo);
       assertTrue(a2 instanceof Object[]);
       assertTrue(a2 instanceof Object[][]);

       assertAllCanStore((Object[]) a2, new Object[] {new PolyA[0]});
       assertNoneCanStore((Object[]) a2, new Object[] {new IFoo() {
       }, new PolyB(), new Object(), new Object[0], new IFoo[0]});
     }
   }

   public void testArrays() {
     int[] c = new int[] {1, 2};
     int[][] d = new int[][] { {1, 2}, {3, 4}};
     int[][][] e = new int[][][] { { {1, 2}, {3, 4}}, { {5, 6}, {7, 8}}};
     if (expectClassMetadata()) {
       assertEquals("[I", c.getClass().getName());
       assertEquals("[[I", d.getClass().getName());
       assertEquals("[I", d[1].getClass().getName());
       assertEquals("[[[I", e.getClass().getName());
       assertEquals("[[I", e[1].getClass().getName());
       assertEquals("[I", e[1][1].getClass().getName());
     }
     assertEquals(2, c[1]);
     assertEquals(3, d[1][0]);
     assertEquals(8, e[1][1][1]);

     int[][][] b = new int[3][2][1];
     b[2][1][0] = 1;
     b = new int[3][2][];
     b[2][1] = null;
     b = new int[3][][];
     b[2] = null;
   }

   public void testAssociativityCond() {
     int result = (TRUE ? TRUE : FALSE) ? 100 : 200;
     assertEquals(100, result);
   }

   @SuppressWarnings("cast")
   public void testCasts() {
     Object o = FALSE ? (Object) new PolyA() : (Object) new PolyB();
     assertTrue(o instanceof I);
     assertFalse(o instanceof IFoo);
     assertTrue(o instanceof IBar);
     assertFalse(o instanceof PolyA);
     assertTrue(o instanceof PolyB);
     try {
       o = (PolyA) o;
       fail();
     } catch (ClassCastException e) {
     }
   }

   public void testClinit() {
     ++HasClinit.i;
     HasClinit x = new HasClinit();
     ++x.i;
     new HasClinit().i++;
     HasClinit.i /= HasClinit.i;
     HasClinit.sfoo();
     HasClinit.i /= HasClinit.sfoo();
     HasClinit.clinitInNative();
     clinitFromNative();
   }

   public void testExceptions() {
     int i;
     for (i = 0; i < 5; ++i) {
       boolean hitOuter = false;
       boolean hitInner = false;
       try {
         try {
           switch (i) {
             case 0:
               throw new RuntimeException();
             case 1:
               throw new IndexOutOfBoundsException();
             case 2:
               throw new Exception();
             case 3:
               throw new StringIndexOutOfBoundsException();
             case 4:
               throwNativeException();
           }
         } catch (StringIndexOutOfBoundsException e) {
           assertEquals(3, i);
         } finally {
           hitInner = true;
         }
       } catch (IndexOutOfBoundsException f) {
         assertEquals(1, i);
       } catch (JavaScriptException js) {
         assertEquals(4, i);
       } catch (RuntimeException g) {
         assertEquals(0, i);
       } catch (Throwable e) {
         assertEquals(2, i);
       } finally {
         assertTrue(hitInner);
         hitOuter = true;
       }
       assertTrue(hitOuter);
     }
     assertEquals(5, i);
   }

   public void testIssue2479() {
     if (TRUE) {
       FALSE = false;
     } else if (FALSE) {
       TRUE = true;
     } else {
       noOp();
     }
   }

   public void testString() {
     String x = "hi";
     assertEquals("hi", x);
     assertEquals("hi", x.toString());
     x = new String();
     assertEquals("", x);
     x = new String(x);
     assertEquals("", x);
     x = new String("hi");
     assertEquals("hi", x);
     assertEquals('i', x.charAt(1));
     assertEquals("hiyay", x.concat("yay"));
     assertEquals("hihi", x + x);

     assertEquals(
         "blahcom.google.gwt.dev.jjs.test.MiscellaneousTestabctruefalsenullc27",
         ("blah" + this + String.valueOf(new char[] {'a', 'b', 'c'}) + true
             + false + null + 'c' + 27));
   }

   /**
    * Ensures that polymorphic dispatch to String works correctly.
    */
   @SuppressWarnings("unchecked")
   public void testStringPrototype() {
     Object s = FALSE ? new Object() : "Hello, World!";
     assertEquals(String.class, s.getClass());
     assertEquals("Hello, World!".hashCode(), s.hashCode());
     assertTrue(s.equals("Hello, World!"));
     assertTrue("Hello, World!".equals(s));
     assertFalse(s.equals(""));
     assertFalse("".equals(s));
     assertEquals("Hello, World!", s.toString());
     assertTrue(s instanceof String);

     Comparable b = FALSE ? new Integer(1) : "Hello, World!";
     assertTrue(((Comparable) "Hello, World!").compareTo(b) == 0);
     assertTrue(b.compareTo("Hello, World!") == 0);
     assertTrue(((Comparable) "A").compareTo(b) < 0);
     assertTrue(b.compareTo("A") > 0);
     assertTrue(((Comparable) "Z").compareTo(b) > 0);
     assertTrue(b.compareTo("Z") < 0);
     assertTrue(b instanceof String);

     CharSequence c = FALSE ? new StringBuffer() : "Hello, World!";
     assertEquals('e', c.charAt(1));
     assertEquals(13, c.length());
     assertEquals("ello", c.subSequence(1, 5));
     assertTrue(c instanceof String);
   }

   public String toString() {
     return "com.google.gwt.dev.jjs.test.MiscellaneousTest";
   }

   private boolean expectClassMetadata() {
     String name = Object.class.getName();

     if (name.equals("java.lang.Object")) {
       return true;
     } else if (name.startsWith("Class$")) {
       return false;
     }

     throw new RuntimeException("Unexpected class name " + name);
   }
 }
	/*
	* Copyright 2008 Google Inc.
	*
	* Licensed under the Apache License, Version 2.0 (the "License"); you may not
	* use this file except in compliance with the License. You may obtain a copy of
	* the License at
	*
	* http://www.apache.org/licenses/LICENSE-2.0
	*
	* Unless required by applicable law or agreed to in writing, software
	* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
	* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
	* License for the specific language governing permissions and limitations under
	* the License.
	*/
	package com.google.gwt.dev.jjs.test;

	import com.google.gwt.core.client.JavaScriptException;
	import com.google.gwt.junit.client.GWTTestCase;

	/**
	* This should probably be refactored at some point.
	*/
	public class MiscellaneousTest extends GWTTestCase {

	interface I {
	}

	interface IBar extends I {
	}

	interface IFoo extends I {
	}

	static class PolyA implements IFoo {
	public String toString() {
	return "A";
	}
	}

	static class PolyB implements IBar {
	public String toString() {
	return "B";
	}
	}

	private static class HasClinit {
	public static int i = 1;

	private static HasClinit sInstance = new HasClinit();

	public static int sfoo() {
	return sInstance.foo();
	}

	private static native void clinitInNative() /*-{
	}-*/;

	private int foo() {
	this.toString();
	return 3;
	}
	}

	private static volatile boolean FALSE = false;

	private static volatile boolean TRUE = true;

	private static void assertAllCanStore(Object[] dest, Object[] src) {
	for (int i = 0; i < src.length; ++i) {
	dest[0] = src[i];
	}
	}

	private static void assertNoneCanStore(Object[] dest, Object[] src) {
	for (int i = 0; i < src.length; ++i) {
	try {
	dest[0] = src[i];
	fail();
	} catch (ArrayStoreException e) {
	}
	}
	}

	private static native void clinitFromNative() /*-{
	@com.google.gwt.dev.jjs.test.MiscellaneousTest$HasClinit::i = 5;
	}-*/;

	private static native void noOp() /*-{
	}-*/;

	private static native void throwNativeException() /*-{
	var a; a.asdf();
	}-*/;

	public String getModuleName() {
	return "com.google.gwt.dev.jjs.CompilerSuite";
	}

	public void testArrayCasts() {
	{
	// thwart optimizer
	Object f1 = FALSE ? (Object) new PolyA() : (Object) new IFoo[1];
	if (expectClassMetadata()) {
	assertEquals("[Lcom.google.gwt.dev.jjs.test.MiscellaneousTest$IFoo;",
	f1.getClass().getName());
	}
	assertFalse(f1 instanceof PolyA[][]);
	assertFalse(f1 instanceof IFoo[][]);
	assertFalse(f1 instanceof PolyA[]);
	assertTrue(f1 instanceof IFoo[]);
	assertFalse(f1 instanceof PolyA);
	assertFalse(f1 instanceof IFoo);
	assertTrue(f1 instanceof Object[]);
	assertFalse(f1 instanceof Object[][]);

	assertAllCanStore((Object[]) f1, new Object[] {new PolyA(), new IFoo() {
	}});
	assertNoneCanStore((Object[]) f1, new Object[] {
	new PolyB(), new Object(), new Object[0]});
	}

	{
	// thwart optimizer
	Object a1 = FALSE ? (Object) new PolyA() : (Object) new PolyA[1];
	if (expectClassMetadata()) {
	assertEquals("[Lcom.google.gwt.dev.jjs.test.MiscellaneousTest$PolyA;",
	a1.getClass().getName());
	}
	assertFalse(a1 instanceof PolyA[][]);
	assertFalse(a1 instanceof IFoo[][]);
	assertTrue(a1 instanceof PolyA[]);
	assertTrue(a1 instanceof IFoo[]);
	assertFalse(a1 instanceof PolyA);
	assertFalse(a1 instanceof IFoo);
	assertTrue(a1 instanceof Object[]);
	assertFalse(a1 instanceof Object[][]);

	assertAllCanStore((Object[]) a1, new Object[] {new PolyA()});
	assertNoneCanStore((Object[]) a1, new Object[] {new IFoo() {
	}, new PolyB(), new Object(), new Object[0]});
	}

	{
	// thwart optimizer
	Object f2 = FALSE ? (Object) new PolyA() : (Object) new IFoo[1][];
	if (expectClassMetadata()) {
	assertEquals("[[Lcom.google.gwt.dev.jjs.test.MiscellaneousTest$IFoo;",
	f2.getClass().getName());
	}
	assertFalse(f2 instanceof PolyA[][]);
	assertTrue(f2 instanceof IFoo[][]);
	assertFalse(f2 instanceof PolyA[]);
	assertFalse(f2 instanceof IFoo[]);
	assertFalse(f2 instanceof PolyA);
	assertFalse(f2 instanceof IFoo);
	assertTrue(f2 instanceof Object[]);
	assertTrue(f2 instanceof Object[][]);

	assertAllCanStore((Object[]) f2, new Object[] {new PolyA[0], new IFoo[0]});
	assertNoneCanStore((Object[]) f2, new Object[] {new IFoo() {
	}, new PolyB(), new Object(), new Object[0]});
	}

	{
	// thwart optimizer
	Object a2 = FALSE ? (Object) new PolyA() : (Object) new PolyA[1][];
	if (expectClassMetadata()) {
	assertEquals("[[Lcom.google.gwt.dev.jjs.test.MiscellaneousTest$PolyA;",
	a2.getClass().getName());
	}
	assertTrue(a2 instanceof PolyA[][]);
	assertTrue(a2 instanceof IFoo[][]);
	assertFalse(a2 instanceof PolyA[]);
	assertFalse(a2 instanceof IFoo[]);
	assertFalse(a2 instanceof PolyA);
	assertFalse(a2 instanceof IFoo);
	assertTrue(a2 instanceof Object[]);
	assertTrue(a2 instanceof Object[][]);

	assertAllCanStore((Object[]) a2, new Object[] {new PolyA[0]});
	assertNoneCanStore((Object[]) a2, new Object[] {new IFoo() {
	}, new PolyB(), new Object(), new Object[0], new IFoo[0]});
	}
	}

	public void testArrays() {
	int[] c = new int[] {1, 2};
	int[][] d = new int[][] { {1, 2}, {3, 4}};
	int[][][] e = new int[][][] { { {1, 2}, {3, 4}}, { {5, 6}, {7, 8}}};
	if (expectClassMetadata()) {
	assertEquals("[I", c.getClass().getName());
	assertEquals("[[I", d.getClass().getName());
	assertEquals("[I", d[1].getClass().getName());
	assertEquals("[[[I", e.getClass().getName());
	assertEquals("[[I", e[1].getClass().getName());
	assertEquals("[I", e[1][1].getClass().getName());
	}
	assertEquals(2, c[1]);
	assertEquals(3, d[1][0]);
	assertEquals(8, e[1][1][1]);

	int[][][] b = new int[3][2][1];
	b[2][1][0] = 1;
	b = new int[3][2][];
	b[2][1] = null;
	b = new int[3][][];
	b[2] = null;
	}

	public void testAssociativityCond() {
	int result = (TRUE ? TRUE : FALSE) ? 100 : 200;
	assertEquals(100, result);
	}

	@SuppressWarnings("cast")
	public void testCasts() {
	Object o = FALSE ? (Object) new PolyA() : (Object) new PolyB();
	assertTrue(o instanceof I);
	assertFalse(o instanceof IFoo);
	assertTrue(o instanceof IBar);
	assertFalse(o instanceof PolyA);
	assertTrue(o instanceof PolyB);
	try {
	o = (PolyA) o;
	fail();
	} catch (ClassCastException e) {
	}
	}

	public void testClinit() {
	++HasClinit.i;
	HasClinit x = new HasClinit();
	++x.i;
	new HasClinit().i++;
	HasClinit.i /= HasClinit.i;
	HasClinit.sfoo();
	HasClinit.i /= HasClinit.sfoo();
	HasClinit.clinitInNative();
	clinitFromNative();
	}

	public void testExceptions() {
	int i;
	for (i = 0; i < 5; ++i) {
	boolean hitOuter = false;
	boolean hitInner = false;
	try {
	try {
	switch (i) {
	case 0:
	throw new RuntimeException();
	case 1:
	throw new IndexOutOfBoundsException();
	case 2:
	throw new Exception();
	case 3:
	throw new StringIndexOutOfBoundsException();
	case 4:
	throwNativeException();
	}
	} catch (StringIndexOutOfBoundsException e) {
	assertEquals(3, i);
	} finally {
	hitInner = true;
	}
	} catch (IndexOutOfBoundsException f) {
	assertEquals(1, i);
	} catch (JavaScriptException js) {
	assertEquals(4, i);
	} catch (RuntimeException g) {
	assertEquals(0, i);
	} catch (Throwable e) {
	assertEquals(2, i);
	} finally {
	assertTrue(hitInner);
	hitOuter = true;
	}
	assertTrue(hitOuter);
	}
	assertEquals(5, i);
	}

	public void testIssue2479() {
	if (TRUE) {
	FALSE = false;
	} else if (FALSE) {
	TRUE = true;
	} else {
	noOp();
	}
	}

	public void testString() {
	String x = "hi";
	assertEquals("hi", x);
	assertEquals("hi", x.toString());
	x = new String();
	assertEquals("", x);
	x = new String(x);
	assertEquals("", x);
	x = new String("hi");
	assertEquals("hi", x);
	assertEquals('i', x.charAt(1));
	assertEquals("hiyay", x.concat("yay"));
	assertEquals("hihi", x + x);

	assertEquals(
	"blahcom.google.gwt.dev.jjs.test.MiscellaneousTestabctruefalsenullc27",
	("blah" + this + String.valueOf(new char[] {'a', 'b', 'c'}) + true
	+ false + null + 'c' + 27));
	}

	/**
	* Ensures that polymorphic dispatch to String works correctly.
	*/
	@SuppressWarnings("unchecked")
	public void testStringPrototype() {
	Object s = FALSE ? new Object() : "Hello, World!";
	assertEquals(String.class, s.getClass());
	assertEquals("Hello, World!".hashCode(), s.hashCode());
	assertTrue(s.equals("Hello, World!"));
	assertTrue("Hello, World!".equals(s));
	assertFalse(s.equals(""));
	assertFalse("".equals(s));
	assertEquals("Hello, World!", s.toString());
	assertTrue(s instanceof String);

	Comparable b = FALSE ? new Integer(1) : "Hello, World!";
	assertTrue(((Comparable) "Hello, World!").compareTo(b) == 0);
	assertTrue(b.compareTo("Hello, World!") == 0);
	assertTrue(((Comparable) "A").compareTo(b) < 0);
	assertTrue(b.compareTo("A") > 0);
	assertTrue(((Comparable) "Z").compareTo(b) > 0);
	assertTrue(b.compareTo("Z") < 0);
	assertTrue(b instanceof String);

	CharSequence c = FALSE ? new StringBuffer() : "Hello, World!";
	assertEquals('e', c.charAt(1));
	assertEquals(13, c.length());
	assertEquals("ello", c.subSequence(1, 5));
	assertTrue(c instanceof String);
	}

	public String toString() {
	return "com.google.gwt.dev.jjs.test.MiscellaneousTest";
	}

	private boolean expectClassMetadata() {
	String name = Object.class.getName();

	if (name.equals("java.lang.Object")) {
	return true;
	} else if (name.startsWith("Class$")) {
	return false;
	}

	throw new RuntimeException("Unexpected class name " + name);
	}
	}