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gecko-dev/xpcom/tests/TestTArray.cpp

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C++
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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim:set ts=2 sw=2 sts=2 et cindent: */
/* ***** 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 C++ array template tests.
*
* The Initial Developer of the Original Code is Google Inc.
* Portions created by the Initial Developer are Copyright (C) 2005
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
* Darin Fisher <darin@meer.net>
*
* Alternatively, the contents of this file may be used under the terms of
* either 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 <stdlib.h>
#include <stdio.h>
#include "nsTArray.h"
#include "nsTPtrArray.h"
#include "nsMemory.h"
#include "nsAutoPtr.h"
#include "nsString.h"
#include "nsDirectoryServiceDefs.h"
#include "nsDirectoryServiceUtils.h"
#include "nsComponentManagerUtils.h"
#include "nsXPCOM.h"
#include "nsILocalFile.h"
namespace TestTArray {
// Define this so we can use test_basic_array in test_comptr_array
template <class T>
inline bool operator<(const nsCOMPtr<T>& lhs, const nsCOMPtr<T>& rhs) {
return lhs.get() < rhs.get();
}
//----
template <class ElementType>
static PRBool test_basic_array(ElementType *data,
PRUint32 dataLen,
const ElementType& extra) {
nsTArray<ElementType> ary;
ary.AppendElements(data, dataLen);
if (ary.Length() != dataLen) {
return PR_FALSE;
}
if (!(ary == ary)) {
return PR_FALSE;
}
PRUint32 i;
for (i = 0; i < ary.Length(); ++i) {
if (ary[i] != data[i])
return PR_FALSE;
}
for (i = 0; i < ary.Length(); ++i) {
if (ary.SafeElementAt(i, extra) != data[i])
return PR_FALSE;
}
if (ary.SafeElementAt(ary.Length(), extra) != extra ||
ary.SafeElementAt(ary.Length() * 10, extra) != extra)
return PR_FALSE;
// ensure sort results in ascending order
ary.Sort();
PRUint32 j = 0, k;
if (ary.GreatestIndexLtEq(extra, k))
return PR_FALSE;
for (i = 0; i < ary.Length(); ++i) {
if (!ary.GreatestIndexLtEq(ary[i], k))
return PR_FALSE;
if (k < j)
return PR_FALSE;
j = k;
}
for (i = ary.Length(); --i; ) {
if (ary[i] < ary[i - 1])
return PR_FALSE;
if (ary[i] == ary[i - 1])
ary.RemoveElementAt(i);
}
if (!(ary == ary)) {
return PR_FALSE;
}
for (i = 0; i < ary.Length(); ++i) {
if (ary.BinaryIndexOf(ary[i]) != i)
return PR_FALSE;
}
if (ary.BinaryIndexOf(extra) != ary.NoIndex)
return PR_FALSE;
PRUint32 oldLen = ary.Length();
ary.RemoveElement(data[dataLen / 2]);
if (ary.Length() != (oldLen - 1))
return PR_FALSE;
if (!(ary == ary))
return PR_FALSE;
PRUint32 index = ary.Length() / 2;
if (!ary.InsertElementAt(index, extra))
return PR_FALSE;
if (!(ary == ary))
return PR_FALSE;
if (ary[index] != extra)
return PR_FALSE;
if (ary.IndexOf(extra) == PR_UINT32_MAX)
return PR_FALSE;
if (ary.LastIndexOf(extra) == PR_UINT32_MAX)
return PR_FALSE;
// ensure proper searching
if (ary.IndexOf(extra) > ary.LastIndexOf(extra))
return PR_FALSE;
if (ary.IndexOf(extra, index) != ary.LastIndexOf(extra, index))
return PR_FALSE;
nsTArray<ElementType> copy(ary);
if (!(ary == copy))
return PR_FALSE;
for (i = 0; i < copy.Length(); ++i) {
if (ary[i] != copy[i])
return PR_FALSE;
}
if (!ary.AppendElements(copy))
return PR_FALSE;
PRUint32 cap = ary.Capacity();
ary.RemoveElementsAt(copy.Length(), copy.Length());
ary.Compact();
if (ary.Capacity() == cap)
return PR_FALSE;
ary.Clear();
if (!ary.IsEmpty() || ary.Elements() == nsnull)
return PR_FALSE;
if (!(ary == nsTArray<ElementType>()))
return PR_FALSE;
if (ary == copy)
return PR_FALSE;
if (ary.SafeElementAt(0, extra) != extra ||
ary.SafeElementAt(10, extra) != extra)
return PR_FALSE;
ary = copy;
if (!(ary == copy))
return PR_FALSE;
for (i = 0; i < copy.Length(); ++i) {
if (ary[i] != copy[i])
return PR_FALSE;
}
if (!ary.InsertElementsAt(0, copy))
return PR_FALSE;
if (ary == copy)
return PR_FALSE;
ary.RemoveElementsAt(0, copy.Length());
for (i = 0; i < copy.Length(); ++i) {
if (ary[i] != copy[i])
return PR_FALSE;
}
// These shouldn't crash!
nsTArray<ElementType> empty;
ary.AppendElements(reinterpret_cast<ElementType *>(0), 0);
ary.AppendElements(empty);
// See bug 324981
ary.RemoveElement(extra);
ary.RemoveElement(extra);
return PR_TRUE;
}
static PRBool test_int_array() {
int data[] = {4,6,8,2,4,1,5,7,3};
return test_basic_array(data, NS_ARRAY_LENGTH(data), int(14));
}
static PRBool test_int64_array() {
PRInt64 data[] = {4,6,8,2,4,1,5,7,3};
return test_basic_array(data, NS_ARRAY_LENGTH(data), PRInt64(14));
}
static PRBool test_char_array() {
char data[] = {4,6,8,2,4,1,5,7,3};
return test_basic_array(data, NS_ARRAY_LENGTH(data), char(14));
}
static PRBool test_uint32_array() {
PRUint32 data[] = {4,6,8,2,4,1,5,7,3};
return test_basic_array(data, NS_ARRAY_LENGTH(data), PRUint32(14));
}
//----
class Object {
public:
Object() : mNum(0) {
}
Object(const char *str, PRUint32 num) : mStr(str), mNum(num) {
}
Object(const Object& other) : mStr(other.mStr), mNum(other.mNum) {
}
~Object() {}
Object& operator=(const Object& other) {
mStr = other.mStr;
mNum = other.mNum;
return *this;
}
PRBool operator==(const Object& other) const {
return mStr == other.mStr && mNum == other.mNum;
}
PRBool operator<(const Object& other) const {
// sort based on mStr only
return Compare(mStr, other.mStr) < 0;
}
const char *Str() const { return mStr.get(); }
PRUint32 Num() const { return mNum; }
private:
nsCString mStr;
PRUint32 mNum;
};
static PRBool test_object_array() {
nsTArray<Object> objArray;
const char kdata[] = "hello world";
PRUint32 i;
for (i = 0; i < NS_ARRAY_LENGTH(kdata); ++i) {
char x[] = {kdata[i],'\0'};
if (!objArray.AppendElement(Object(x, i)))
return PR_FALSE;
}
for (i = 0; i < NS_ARRAY_LENGTH(kdata); ++i) {
if (objArray[i].Str()[0] != kdata[i])
return PR_FALSE;
if (objArray[i].Num() != i)
return PR_FALSE;
}
objArray.Sort();
const char ksorted[] = "\0 dehllloorw";
for (i = 0; i < NS_ARRAY_LENGTH(kdata)-1; ++i) {
if (objArray[i].Str()[0] != ksorted[i])
return PR_FALSE;
}
return PR_TRUE;
}
// nsTArray<nsAutoPtr<T>> is not supported
#if 0
static PRBool test_autoptr_array() {
nsTArray< nsAutoPtr<Object> > objArray;
const char kdata[] = "hello world";
for (PRUint32 i = 0; i < NS_ARRAY_LENGTH(kdata); ++i) {
char x[] = {kdata[i],'\0'};
nsAutoPtr<Object> obj(new Object(x,i));
if (!objArray.AppendElement(obj)) // XXX does not call copy-constructor for nsAutoPtr!!!
return PR_FALSE;
if (obj.get() == nsnull)
return PR_FALSE;
obj.forget(); // the array now owns the reference
}
for (PRUint32 i = 0; i < NS_ARRAY_LENGTH(kdata); ++i) {
if (objArray[i]->Str()[0] != kdata[i])
return PR_FALSE;
if (objArray[i]->Num() != i)
return PR_FALSE;
}
return PR_TRUE;
}
#endif
//----
static PRBool operator==(const nsCString &a, const char *b) {
return a.Equals(b);
}
static PRBool test_string_array() {
nsTArray<nsCString> strArray;
const char kdata[] = "hello world";
PRUint32 i;
for (i = 0; i < NS_ARRAY_LENGTH(kdata); ++i) {
if (!strArray.AppendElement(nsCString(kdata[i])))
return PR_FALSE;
}
for (i = 0; i < NS_ARRAY_LENGTH(kdata); ++i) {
if (strArray[i].CharAt(0) != kdata[i])
return PR_FALSE;
}
const char kextra[] = "foo bar";
PRUint32 oldLen = strArray.Length();
if (!strArray.AppendElement(kextra))
return PR_FALSE;
strArray.RemoveElement(kextra);
if (oldLen != strArray.Length())
return PR_FALSE;
if (strArray.IndexOf("e") != 1)
return PR_FALSE;
strArray.Sort();
const char ksorted[] = "\0 dehllloorw";
for (i = NS_ARRAY_LENGTH(kdata); i--; ) {
if (strArray[i].CharAt(0) != ksorted[i])
return PR_FALSE;
if (i > 0 && strArray[i] == strArray[i - 1])
strArray.RemoveElementAt(i);
}
for (i = 0; i < strArray.Length(); ++i) {
if (strArray.BinaryIndexOf(strArray[i]) != i)
return PR_FALSE;
}
if (strArray.BinaryIndexOf(EmptyCString()) != strArray.NoIndex)
return PR_FALSE;
nsCString rawArray[NS_ARRAY_LENGTH(kdata)-1];
for (i = 0; i < NS_ARRAY_LENGTH(rawArray); ++i)
rawArray[i].Assign(kdata + i); // substrings of kdata
return test_basic_array(rawArray, NS_ARRAY_LENGTH(rawArray),
nsCString("foopy"));
}
//----
typedef nsCOMPtr<nsIFile> FilePointer;
class nsFileNameComparator {
public:
PRBool Equals(const FilePointer &a, const char *b) const {
nsCAutoString name;
a->GetNativeLeafName(name);
return name.Equals(b);
}
};
static PRBool test_comptr_array() {
FilePointer tmpDir;
NS_GetSpecialDirectory(NS_OS_TEMP_DIR, getter_AddRefs(tmpDir));
if (!tmpDir)
return PR_FALSE;
const char *kNames[] = {
"foo.txt", "bar.html", "baz.gif"
};
nsTArray<FilePointer> fileArray;
PRUint32 i;
for (i = 0; i < NS_ARRAY_LENGTH(kNames); ++i) {
FilePointer f;
tmpDir->Clone(getter_AddRefs(f));
if (!f)
return PR_FALSE;
if (NS_FAILED(f->AppendNative(nsDependentCString(kNames[i]))))
return PR_FALSE;
fileArray.AppendElement(f);
}
if (fileArray.IndexOf(kNames[1], 0, nsFileNameComparator()) != 1)
return PR_FALSE;
// It's unclear what 'operator<' means for nsCOMPtr, but whatever...
return test_basic_array(fileArray.Elements(), fileArray.Length(),
tmpDir);
}
//----
class RefcountedObject {
public:
RefcountedObject() : rc(0) {}
void AddRef() {
++rc;
}
void Release() {
if (--rc == 0)
delete this;
}
~RefcountedObject() {}
private:
PRInt32 rc;
};
static PRBool test_refptr_array() {
PRBool rv = PR_TRUE;
nsTArray< nsRefPtr<RefcountedObject> > objArray;
RefcountedObject *a = new RefcountedObject(); a->AddRef();
RefcountedObject *b = new RefcountedObject(); b->AddRef();
RefcountedObject *c = new RefcountedObject(); c->AddRef();
objArray.AppendElement(a);
objArray.AppendElement(b);
objArray.AppendElement(c);
if (objArray.IndexOf(b) != 1)
rv = PR_FALSE;
a->Release();
b->Release();
c->Release();
return rv;
}
//----
static PRBool test_ptrarray() {
nsTPtrArray<PRUint32> ary;
if (ary.SafeElementAt(0) != nsnull)
return PR_FALSE;
if (ary.SafeElementAt(1000) != nsnull)
return PR_FALSE;
PRUint32 a = 10;
ary.AppendElement(&a);
if (*ary[0] != a)
return PR_FALSE;
if (*ary.SafeElementAt(0) != a)
return PR_FALSE;
nsTPtrArray<const PRUint32> cary;
if (cary.SafeElementAt(0) != nsnull)
return PR_FALSE;
if (cary.SafeElementAt(1000) != nsnull)
return PR_FALSE;
const PRUint32 b = 14;
cary.AppendElement(&a);
cary.AppendElement(&b);
if (*cary[0] != a || *cary[1] != b)
return PR_FALSE;
if (*cary.SafeElementAt(0) != a || *cary.SafeElementAt(1) != b)
return PR_FALSE;
return PR_TRUE;
}
//----
// This test relies too heavily on the existence of DebugGetHeader to be
// useful in non-debug builds.
#ifdef DEBUG
static PRBool test_autoarray() {
PRUint32 data[] = {4,6,8,2,4,1,5,7,3};
nsAutoTArray<PRUint32, NS_ARRAY_LENGTH(data)> array;
void* hdr = array.DebugGetHeader();
if (hdr == nsTArray<PRUint32>().DebugGetHeader())
return PR_FALSE;
if (hdr == nsAutoTArray<PRUint32, NS_ARRAY_LENGTH(data)>().DebugGetHeader())
return PR_FALSE;
array.AppendElement(1u);
if (hdr != array.DebugGetHeader())
return PR_FALSE;
array.RemoveElement(1u);
array.AppendElements(data, NS_ARRAY_LENGTH(data));
if (hdr != array.DebugGetHeader())
return PR_FALSE;
array.AppendElement(2u);
if (hdr == array.DebugGetHeader())
return PR_FALSE;
array.Clear();
array.Compact();
if (hdr != array.DebugGetHeader())
return PR_FALSE;
array.AppendElements(data, NS_ARRAY_LENGTH(data));
if (hdr != array.DebugGetHeader())
return PR_FALSE;
nsTArray<PRUint32> array2;
void* emptyHdr = array2.DebugGetHeader();
array.SwapElements(array2);
if (emptyHdr == array.DebugGetHeader())
return PR_FALSE;
if (hdr == array2.DebugGetHeader())
return PR_FALSE;
PRUint32 i;
for (i = 0; i < NS_ARRAY_LENGTH(data); ++i) {
if (array2[i] != data[i])
return PR_FALSE;
}
if (!array.IsEmpty())
return PR_FALSE;
array.Compact();
array.AppendElements(data, NS_ARRAY_LENGTH(data));
PRUint32 data3[] = {5, 7, 11};
nsAutoTArray<PRUint32, NS_ARRAY_LENGTH(data3)> array3;
array3.AppendElements(data3, NS_ARRAY_LENGTH(data3));
array.SwapElements(array3);
for (i = 0; i < NS_ARRAY_LENGTH(data); ++i) {
if (array3[i] != data[i])
return PR_FALSE;
}
for (i = 0; i < NS_ARRAY_LENGTH(data3); ++i) {
if (array[i] != data3[i])
return PR_FALSE;
}
return PR_TRUE;
}
#endif
//----
// IndexOf used to potentially scan beyond the end of the array. Test for
// this incorrect behavior by adding a value (5), removing it, then seeing
// if IndexOf finds it.
static PRBool test_indexof() {
nsTArray<int> array;
array.AppendElement(0);
// add and remove the 5
array.AppendElement(5);
array.RemoveElementAt(1);
// we should not find the 5!
return array.IndexOf(5, 1) == array.NoIndex;
}
//----
template <class Array>
static PRBool is_heap(const Array& ary, PRUint32 len) {
PRUint32 index = 1;
while (index < len) {
if (ary[index] > ary[(index - 1) >> 1])
return PR_FALSE;
index++;
}
return PR_TRUE;
}
static PRBool test_heap() {
const int data[] = {4,6,8,2,4,1,5,7,3};
nsTArray<int> ary;
ary.AppendElements(data, NS_ARRAY_LENGTH(data));
// make a heap and make sure it's a heap
ary.MakeHeap();
if (!is_heap(ary, NS_ARRAY_LENGTH(data)))
return PR_FALSE;
// pop the root and make sure it's still a heap
int root = ary[0];
ary.PopHeap();
if (!is_heap(ary, NS_ARRAY_LENGTH(data) - 1))
return PR_FALSE;
// push the previously poped value back on and make sure it's still a heap
ary.PushHeap(root);
if (!is_heap(ary, NS_ARRAY_LENGTH(data)))
return PR_FALSE;
// make sure the heap looks like what we expect
const int expected_data[] = {8,7,5,6,4,1,4,2,3};
PRUint32 index;
for (index = 0; index < NS_ARRAY_LENGTH(data); index++)
if (ary[index] != expected_data[index])
return PR_FALSE;
return PR_TRUE;
}
//----
typedef PRBool (*TestFunc)();
#define DECL_TEST(name) { #name, name }
static const struct Test {
const char* name;
TestFunc func;
} tests[] = {
DECL_TEST(test_int_array),
DECL_TEST(test_int64_array),
DECL_TEST(test_char_array),
DECL_TEST(test_uint32_array),
DECL_TEST(test_object_array),
DECL_TEST(test_string_array),
DECL_TEST(test_comptr_array),
DECL_TEST(test_refptr_array),
DECL_TEST(test_ptrarray),
#ifdef DEBUG
DECL_TEST(test_autoarray),
#endif
DECL_TEST(test_indexof),
DECL_TEST(test_heap),
{ nsnull, nsnull }
};
}
using namespace TestTArray;
int main(int argc, char **argv) {
int count = 1;
if (argc > 1)
count = atoi(argv[1]);
if (NS_FAILED(NS_InitXPCOM2(nsnull, nsnull, nsnull)))
return -1;
while (count--) {
for (const Test* t = tests; t->name != nsnull; ++t) {
printf("%25s : %s\n", t->name, t->func() ? "SUCCESS" : "FAILURE");
}
}
NS_ShutdownXPCOM(nsnull);
return 0;
}
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