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1 // Copyright (c) 2003-2009 Nokia Corporation and/or its subsidiary(-ies). |
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2 // All rights reserved. |
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3 // This component and the accompanying materials are made available |
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4 // under the terms of "Eclipse Public License v1.0" |
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5 // which accompanies this distribution, and is available |
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6 // at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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7 // |
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8 // Initial Contributors: |
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9 // Nokia Corporation - initial contribution. |
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10 // |
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11 // Contributors: |
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12 // |
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13 // Description: |
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14 // This tests the failure of CExpat's internal heap. It is a separate test executable |
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15 // because it is statically linked to the xml parser object code and bypasses Ecom |
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16 // |
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17 // |
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18 |
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19 #include <e32test.h> |
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20 #include "contenthandlers.h" |
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21 #include "xmlparserplugin.h" |
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22 |
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23 #include <xml/plugins/charsetconverter.h> |
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24 #include <xml/stringdictionarycollection.h> |
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25 |
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26 using namespace Xml; |
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27 |
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28 GLDEF_D RTest test(_L("Expat heap test")); // must be called test, as the e32test macros rely on this |
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29 |
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30 |
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31 TPtrC8 KNamespaceTest = |
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32 _L8("<?xml version=\"1.0\" encoding=\"UTF-8\" standalone=\"yes\"?>" |
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33 "<!--" |
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34 " namespace.xml - xml test file with known content for use with t_xmlparser" |
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35 " Copyright (c) 2003, Symbian Ltd." |
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36 " All Rights Reserved" |
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37 "-->" |
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38 "" |
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39 "<RootElement rabbits:att=\"value\">" |
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40 " <Element xmlns=\"http://www.symbian.com\" att=\"value\">" |
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41 " <elprefix:Element xmlns:elprefix=\"http://element.uri\" att=\"value\">" |
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42 " <Element xmlns:attprefix=\"http://attribute.uri\" attprefix:att=\"value\"/>" |
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43 " <Element attprefix:att=\"value\"/>" |
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44 " </elprefix:Element>" |
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45 " </Element>" |
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46 "</RootElement>"); |
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47 |
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48 |
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49 // --------------------------------------------------- |
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50 |
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51 |
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52 /** |
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53 @SYMTestCaseID SYSLIB-XML-CT-3746 |
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54 @SYMTestCaseDesc Creating OOM conditions and parsing. |
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55 @SYMTestPriority Medium |
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56 @SYMTestActions In OOM conditions, creating a parser and then parsing chunks. |
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57 @SYMTestExpectedResults The parser should behave as expected in the OOM conditions. |
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58 @SYMPREQ PREQ230 |
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59 */ |
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60 LOCAL_C void ExpatOomTestL() |
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61 { |
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62 // |
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63 // Allocate paraphernalia required for CXmlParserPlugin |
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64 // |
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65 TSimpleContentHandler contentHandler; |
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66 |
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67 RElementStack elementStack; |
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68 CleanupClosePushL(elementStack); |
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69 |
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70 CCharSetConverter* charSetConverter = CCharSetConverter::NewL(); |
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71 CleanupStack::PushL(charSetConverter); |
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72 |
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73 RStringDictionaryCollection stringDictionaryCollection; |
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74 stringDictionaryCollection.OpenL(); |
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75 CleanupClosePushL(stringDictionaryCollection); |
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76 |
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77 TParserInitParams initParams; |
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78 initParams.iCharSetConverter = charSetConverter; |
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79 initParams.iContentHandler = &contentHandler; |
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80 initParams.iStringDictionaryCollection = &stringDictionaryCollection; |
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81 initParams.iElementStack = &elementStack; |
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82 |
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83 |
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84 /* |
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85 The following fragment forces the internal heap to fail during parser |
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86 construction and checks that this causes no leaks from the user heap |
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87 */ |
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88 TInt error; |
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89 TInt count = 0; |
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90 CXmlParserPlugin* parser = 0; |
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91 User::__DbgMarkStart(RHeap::EUser); |
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92 |
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93 do |
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94 { |
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95 User::__DbgMarkEnd(RHeap::EUser,0); |
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96 User::__DbgMarkStart(RHeap::EUser); |
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97 count++; |
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98 TRAP(error, parser=CXmlParserPlugin::NewL(&initParams, count)) |
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99 } while(error==KErrNoMemory); |
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100 |
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101 CleanupReleasePushL(*parser); |
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102 |
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103 |
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104 /* |
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105 Next we parse the namespace test file and cause the heap to heap to fail. |
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106 |
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107 Using the namespace test file ensures Expat is allocating prefixes and uri |
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108 bindings internally. |
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109 */ |
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110 count = 0; |
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111 RHeap* heap = parser->GetInternalHeap(); |
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112 heap->__DbgMarkStart(); |
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113 |
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114 TInt err=KErrNone; |
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115 do |
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116 { |
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117 contentHandler.iError = KErrNone; |
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118 |
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119 heap->__DbgMarkEnd(0); |
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120 heap->__DbgSetAllocFail(RHeap::EFailNext, ++count); |
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121 heap->__DbgMarkStart(); |
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122 TRAP(err, parser->ParseLastChunkL(KNamespaceTest)); |
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123 } while(err==KErrNoMemory); |
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124 |
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125 test(err==KErrNone); |
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126 heap->__DbgMarkEnd(0); |
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127 |
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128 |
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129 /* |
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130 Now set the user heap to fail on the next allocation and parse the |
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131 document again. This causes the CExpat handler function to leave, |
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132 in turn causing the parser to be de-allocated. |
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133 |
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134 This is in preparation for the next test. |
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135 */ |
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136 contentHandler.iError = KErrNone; |
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137 heap->__DbgSetAllocFail(RHeap::ENone,1); // __RHEAP_RESET |
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138 heap->__DbgMarkStart(); |
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139 User::__DbgSetAllocFail(RHeap::EUser, RHeap::EFailNext, 1); |
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140 TRAP(err, parser->ParseLastChunkL(KNamespaceTest)); |
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141 test(err==KErrNoMemory); |
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142 heap->__DbgMarkEnd(0); |
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143 |
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144 |
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145 /* |
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146 We have a CExpat in an error state with the internal parser deleted. Now |
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147 cause systematic heap failure while attempting to reset the parser and |
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148 parse a document. |
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149 |
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150 This will test reset failure and correct handling in CXmlParserPlugin. |
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151 */ |
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152 count = 0; |
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153 heap->__DbgMarkStart(); |
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154 |
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155 do |
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156 { |
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157 heap->__DbgMarkEnd(0); |
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158 heap->__DbgSetAllocFail(RHeap::EFailNext, ++count); |
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159 heap->__DbgMarkStart(); |
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160 parser->EnableFeature(EReportNamespaceMapping); |
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161 TRAP(err, parser->ParseLastChunkL(KNamespaceTest)); |
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162 |
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163 } while(err==KErrNoMemory); |
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164 |
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165 test(err==KErrNone); |
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166 heap->__DbgMarkEnd(0); |
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167 |
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168 CleanupStack::PopAndDestroy(4); |
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169 User::__DbgMarkEnd(RHeap::EUser,0); |
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170 } |
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171 |
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172 |
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173 // --------------------------------------------------- |
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174 // RunTestL |
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175 // MainL |
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176 // E32Main |
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177 // |
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178 // Top-level functions |
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179 |
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180 |
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181 LOCAL_C void RunTestL() |
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182 { |
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183 test.Start(_L(" @SYMTestCaseID:SYSLIB-XML-CT-3746 Expat parser Out-of-Memory test ")); |
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184 |
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185 // Ridiculous device to get around MSVC6 linker-compiler plot to rule the world |
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186 #ifdef _DEBUG |
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187 volatile TInt releaseBuild = 0; |
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188 #else |
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189 volatile TInt releaseBuild = 1; |
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190 #endif |
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191 |
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192 if(releaseBuild) |
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193 test.Printf(_L("This test is not supported in UREL builds\n")); |
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194 else |
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195 ExpatOomTestL(); |
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196 |
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197 test.End(); |
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198 } |
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199 |
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200 LOCAL_C void MainL() |
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201 { |
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202 CleanupClosePushL(test); |
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203 |
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204 TRAPD(error, RunTestL()); |
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205 test(error==KErrNone); |
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206 |
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207 CleanupStack::PopAndDestroy(&test); |
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208 } |
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209 |
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210 TInt E32Main() |
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211 { |
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212 __UHEAP_MARK; |
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213 CTrapCleanup* cleanup=CTrapCleanup::New(); |
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214 if(!cleanup) |
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215 return KErrNoMemory; |
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216 |
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217 TRAPD(error, MainL()); |
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218 |
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219 delete cleanup; |
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220 __UHEAP_MARKEND; |
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221 |
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222 return error; |
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223 } |