gecko/xpcom/tests/TestCOMArray.cpp

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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
// vim:cindent:ts=4:et:sw=4:
/* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (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.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is mozilla.org code.
*
* The Initial Developer of the Original Code is the Mozilla Corporation.
* Portions created by the Initial Developer are Copyright (C) 2010
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
*
* Alternatively, the contents of this file may be used under the terms of
* either of the GNU General Public License Version 2 or later (the "GPL"),
* or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
#include "TestHarness.h"
#include "nsCOMArray.h"
// {9e70a320-be02-11d1-8031-006008159b5a}
#define NS_IFOO_IID \
{0x9e70a320, 0xbe02, 0x11d1, \
{0x80, 0x31, 0x00, 0x60, 0x08, 0x15, 0x9b, 0x5a}}
class IFoo : public nsISupports {
public:
NS_DECLARE_STATIC_IID_ACCESSOR(NS_IFOO_IID)
NS_IMETHOD_(nsrefcnt) RefCnt() = 0;
NS_IMETHOD_(PRInt32) ID() = 0;
};
NS_DEFINE_STATIC_IID_ACCESSOR(IFoo, NS_IFOO_IID)
class Foo : public IFoo {
public:
Foo(PRInt32 aID);
~Foo();
// nsISupports implementation
NS_DECL_ISUPPORTS
// IFoo implementation
NS_IMETHOD_(nsrefcnt) RefCnt() { return mRefCnt; }
NS_IMETHOD_(PRInt32) ID() { return mID; }
static PRInt32 gCount;
PRInt32 mID;
};
PRInt32 Foo::gCount = 0;
Foo::Foo(PRInt32 aID)
{
mID = aID;
++gCount;
}
Foo::~Foo()
{
--gCount;
}
NS_IMPL_ISUPPORTS1(Foo, IFoo)
typedef nsCOMArray<IFoo> Array;
// {0e70a320-be02-11d1-8031-006008159b5a}
#define NS_IBAR_IID \
{0x0e70a320, 0xbe02, 0x11d1, \
{0x80, 0x31, 0x00, 0x60, 0x08, 0x15, 0x9b, 0x5a}}
class IBar : public nsISupports {
public:
NS_DECLARE_STATIC_IID_ACCESSOR(NS_IBAR_IID)
};
NS_DEFINE_STATIC_IID_ACCESSOR(IBar, NS_IBAR_IID)
class Bar : public IBar {
public:
explicit Bar(nsCOMArray<IBar>& aArray);
~Bar();
// nsISupports implementation
NS_DECL_ISUPPORTS
static PRInt32 sReleaseCalled;
private:
nsCOMArray<IBar>& mArray;
};
PRInt32 Bar::sReleaseCalled = 0;
typedef nsCOMArray<IBar> Array2;
Bar::Bar(Array2& aArray)
: mArray(aArray)
{
}
Bar::~Bar()
{
if (mArray.RemoveObject(this)) {
fail("We should never manage to remove the object here");
}
}
NS_IMPL_ADDREF(Bar)
NS_IMPL_QUERY_INTERFACE1(Bar, IBar)
NS_IMETHODIMP_(nsrefcnt)
Bar::Release(void)
{
++Bar::sReleaseCalled;
NS_PRECONDITION(0 != mRefCnt, "dup release");
NS_ASSERT_OWNINGTHREAD(_class);
--mRefCnt;
NS_LOG_RELEASE(this, mRefCnt, "Bar");
if (mRefCnt == 0) {
mRefCnt = 1; /* stabilize */
delete this;
return 0;
}
return mRefCnt;
}
int main(int argc, char **argv)
{
ScopedXPCOM xpcom("nsCOMArrayTests");
if (xpcom.failed()) {
return 1;
}
int rv = 0;
Array arr;
for (PRInt32 i = 0; i < 20; ++i) {
nsCOMPtr<IFoo> foo = new Foo(i);
arr.AppendObject(foo);
}
if (arr.Count() != 20 || Foo::gCount != 20) {
fail("nsCOMArray::AppendObject failed");
rv = 1;
}
arr.SetCount(10);
if (arr.Count() != 10 || Foo::gCount != 10) {
fail("nsCOMArray::SetCount shortening of array failed");
rv = 1;
}
arr.SetCount(30);
if (arr.Count() != 30 || Foo::gCount != 10) {
fail("nsCOMArray::SetCount lengthening of array failed");
rv = 1;
}
for (PRInt32 i = 0; i < 10; ++i) {
if (arr[i] == nsnull) {
fail("nsCOMArray elements should be non-null");
rv = 1;
break;
}
}
for (PRInt32 i = 10; i < 30; ++i) {
if (arr[i] != nsnull) {
fail("nsCOMArray elements should be null");
rv = 1;
break;
}
}
PRInt32 base;
{
Array2 arr2;
IBar *thirdObject,
*fourthObject,
*fifthObject,
*ninthObject;
for (PRInt32 i = 0; i < 20; ++i) {
nsCOMPtr<IBar> bar = new Bar(arr2);
switch (i) {
case 2:
thirdObject = bar; break;
case 3:
fourthObject = bar; break;
case 4:
fifthObject = bar; break;
case 8:
ninthObject = bar; break;
}
arr2.AppendObject(bar);
}
base = Bar::sReleaseCalled;
arr2.SetCount(10);
if (Bar::sReleaseCalled != base + 10) {
fail("Release called multiple times for SetCount");
}
if (arr2.Count() != 10) {
fail("SetCount(10) should remove exactly ten objects");
}
arr2.RemoveObjectAt(9);
if (Bar::sReleaseCalled != base + 11) {
fail("Release called multiple times for RemoveObjectAt");
}
if (arr2.Count() != 9) {
fail("RemoveObjectAt should remove exactly one object");
}
arr2.RemoveObject(ninthObject);
if (Bar::sReleaseCalled != base + 12) {
fail("Release called multiple times for RemoveObject");
}
if (arr2.Count() != 8) {
fail("RemoveObject should remove exactly one object");
}
arr2.RemoveObjectsAt(2, 3);
if (Bar::sReleaseCalled != base + 15) {
fail("Release called more or less than three times for RemoveObjectsAt");
}
if (arr2.Count() != 5) {
fail("RemoveObjectsAt should remove exactly three objects");
}
for (PRInt32 j = 0; j < arr2.Count(); ++j) {
if (arr2.ObjectAt(j) == thirdObject) {
fail("RemoveObjectsAt should have removed thirdObject");
}
if (arr2.ObjectAt(j) == fourthObject) {
fail("RemoveObjectsAt should have removed fourthObject");
}
if (arr2.ObjectAt(j) == fifthObject) {
fail("RemoveObjectsAt should have removed fifthObject");
}
}
arr2.RemoveObjectsAt(4, 1);
if (Bar::sReleaseCalled != base + 16) {
fail("Release called more or less than one time for RemoveObjectsAt");
}
if (arr2.Count() != 4) {
fail("RemoveObjectsAt should work for removing the last element");
}
arr2.Clear();
if (Bar::sReleaseCalled != base + 20) {
fail("Release called multiple times for Clear");
}
}
Bar::sReleaseCalled = 0;
{
Array2 arr2;
for (PRInt32 i = 0; i < 20; ++i) {
nsCOMPtr<IBar> bar = new Bar(arr2);
arr2.AppendObject(bar);
}
base = Bar::sReleaseCalled;
// Let arr2 be destroyed
}
if (Bar::sReleaseCalled != base + 20) {
fail("Release called multiple times for nsCOMArray::~nsCOMArray");
}
return rv;
}