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Added test that checks for correct page deallocation policy

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git-svn-id: http://pugixml.googlecode.com/svn/trunk@408 99668b35-9821-0410-8761-19e4c4f06640
This commit is contained in:
arseny.kapoulkine 2010-05-10 17:26:30 +00:00
parent b47b4905a6
commit 55f3cba20c
1 changed files with 49 additions and 20 deletions
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29
tests/test_memory.cpp
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@ -22,6 +22,8 @@ namespace
TEST(custom_memory_management) TEST(custom_memory_management)
{ {
allocate_count = deallocate_count = 0;
// remember old functions // remember old functions
allocation_function old_allocate = get_memory_allocation_function(); allocation_function old_allocate = get_memory_allocation_function();
deallocation_function old_deallocate = get_memory_deallocation_function(); deallocation_function old_deallocate = get_memory_deallocation_function();
@ -53,8 +55,20 @@ TEST(custom_memory_management)
TEST(large_allocations) TEST(large_allocations)
{ {
allocate_count = deallocate_count = 0;
// remember old functions
allocation_function old_allocate = get_memory_allocation_function();
deallocation_function old_deallocate = get_memory_deallocation_function();
// replace functions
set_memory_management_functions(allocate, deallocate);
{
xml_document doc; xml_document doc;
CHECK(allocate_count == 1 && deallocate_count == 0);
// initial fill // initial fill
for (size_t i = 0; i < 128; ++i) for (size_t i = 0; i < 128; ++i)
{ {
@ -63,6 +77,8 @@ TEST(large_allocations)
CHECK(doc.append_child(node_pcdata).set_value(s.c_str())); CHECK(doc.append_child(node_pcdata).set_value(s.c_str()));
} }
CHECK(allocate_count > 1 && deallocate_count == 0);
// grow-prune loop // grow-prune loop
while (doc.first_child()) while (doc.first_child())
{ {
@ -86,4 +102,17 @@ TEST(large_allocations)
node = next; node = next;
} }
} }
CHECK(allocate_count == deallocate_count + 2); // only two live pages left: one contains document node, another one waits for new allocations
char buffer;
CHECK(doc.load_buffer_inplace(&buffer, 0, parse_default, get_native_encoding()));
CHECK(allocate_count == deallocate_count + 1); // only one live page left (it contains document node)
}
CHECK(allocate_count == deallocate_count); // everything is freed
// restore old functions
set_memory_management_functions(old_allocate, old_deallocate);
} }