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Add various tests targeting Windows platform to show the current troubles cppcheck has to distinguish two different source of allocation used together.

This commit is contained in:
Pierre Schweitzer 2015-05-19 20:16:00 +02:00
parent f27c787c4f
commit 5a68e352df
1 changed files with 84 additions and 0 deletions
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84
test/testleakautovar.cpp
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@ -1151,3 +1151,87 @@ private:
}; };
REGISTER_TEST(TestLeakAutoVar) REGISTER_TEST(TestLeakAutoVar)
class TestLeakAutoVarWindows : public TestFixture {
public:
TestLeakAutoVarWindows() : TestFixture("TestLeakAutoVarWindows") {
}
private:
Settings settings;
void check(const char code[]) {
// Clear the error buffer..
errout.str("");
// Tokenize..
Tokenizer tokenizer(&settings, this);
std::istringstream istr(code);
tokenizer.tokenize(istr, "test.c");
tokenizer.simplifyTokenList2();
// Check for leaks..
CheckLeakAutoVar checkLeak;
checkLeak.runSimplifiedChecks(&tokenizer, &settings, this);
}
void run() {
LOAD_LIB_2(settings.library, "windows.cfg");
TEST_CASE(heapDoubleFree);
}
void heapDoubleFree() {
check("void f() {"
" HANDLE MyHeap = HeapCreate(0, 0, 0);"
" int *a = HeapAlloc(MyHeap, 0, sizeof(int));"
" int *b = HeapAlloc(MyHeap, 0, sizeof(int));"
" HeapFree(MyHeap, 0, a);"
" HeapFree(MyHeap, 0, b);"
" HeapDestroy(MyHeap);"
"}");
TODO_ASSERT_EQUALS("", "[test.c:1]: (error) Mismatching allocation and deallocation: MyHeap\n"
"[test.c:1]: (error) Resource handle 'MyHeap' freed twice.\n", errout.str());
check("void f() {"
" int *a = HeapAlloc(GetProcessHeap(), 0, sizeof(int));"
" int *b = HeapAlloc(GetProcessHeap(), 0, sizeof(int));"
" HeapFree(GetProcessHeap(), 0, a);"
" HeapFree(GetProcessHeap(), 0, b);"
"}");
ASSERT_EQUALS("", errout.str());
check("void f() {"
" HANDLE MyHeap = HeapCreate(0, 0, 0);"
" int *a = HeapAlloc(MyHeap, 0, sizeof(int));"
" int *b = HeapAlloc(MyHeap, 0, sizeof(int));"
" HeapFree(MyHeap, 0, a);"
" HeapDestroy(MyHeap);"
"}");
TODO_ASSERT_EQUALS("[test.c:1] (error) Memory leak: b", "[test.c:1]: (error) Mismatching allocation and deallocation: MyHeap\n"
"[test.c:1]: (error) Memory leak: b\n", errout.str());
check("void f() {"
" HANDLE MyHeap = HeapCreate(0, 0, 0);"
" int *a = HeapAlloc(MyHeap, 0, sizeof(int));"
" int *b = HeapAlloc(MyHeap, 0, sizeof(int));"
" HeapFree(MyHeap, 0, a);"
" HeapFree(MyHeap, 0, b);"
"}");
TODO_ASSERT_EQUALS("[test.c:1] (error) Resource leak: MyHeap", "[test.c:1]: (error) Mismatching allocation and deallocation: MyHeap\n", errout.str());
check("void f() {"
" HANDLE MyHeap = HeapCreate(0, 0, 0);"
" int *a = HeapAlloc(MyHeap, 0, sizeof(int));"
" int *b = HeapAlloc(MyHeap, 0, sizeof(int));"
" HeapFree(MyHeap, 0, a);"
"}");
TODO_ASSERT_EQUALS("[test.c:1] (error) Resource leak: MyHeap\n[test.c:1] (error) Memory leak: b",
"[test.c:1]: (error) Mismatching allocation and deallocation: MyHeap\n[test.c:1]: (error) Memory leak: b\n", errout.str());
}
};
static TestLeakAutoVarWindows testLeakAutoVarWindows;