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// Copyright (c) 2006, Google Inc.
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
// address_map_unittest.cc: Unit tests for AddressMap.
//
// Author: Mark Mentovai
#include <limits.h>
#include <stdio.h>
#include "processor/address_map-inl.h"
#include "processor/linked_ptr.h"
#include "processor/logging.h"
#define ASSERT_TRUE(condition) \
if (!(condition)) { \
fprintf(stderr, "FAIL: %s @ %s:%d\n", #condition, __FILE__, __LINE__); \
return false; \
}
#define ASSERT_FALSE(condition) ASSERT_TRUE(!(condition))
#define ASSERT_EQ(e1, e2) ASSERT_TRUE((e1) == (e2))
namespace {
using google_breakpad::AddressMap;
using google_breakpad::linked_ptr;
// A CountedObject holds an int. A global (not thread safe!) count of
// allocated CountedObjects is maintained to help test memory management.
class CountedObject {
public:
explicit CountedObject(int id) : id_(id) { ++count_; }
~CountedObject() { --count_; }
static int count() { return count_; }
int id() const { return id_; }
private:
static int count_;
int id_;
};
int CountedObject::count_;
typedef int AddressType;
typedef AddressMap< AddressType, linked_ptr<CountedObject> > TestMap;
static bool DoAddressMapTest() {
ASSERT_EQ(CountedObject::count(), 0);
TestMap test_map;
linked_ptr<CountedObject> entry;
AddressType address;
// Check that a new map is truly empty.
ASSERT_FALSE(test_map.Retrieve(0, &entry, &address));
ASSERT_FALSE(test_map.Retrieve(INT_MIN, &entry, &address));
ASSERT_FALSE(test_map.Retrieve(INT_MAX, &entry, &address));
// Check that Clear clears the map without leaking.
ASSERT_EQ(CountedObject::count(), 0);
ASSERT_TRUE(test_map.Store(1,
linked_ptr<CountedObject>(new CountedObject(0))));
ASSERT_TRUE(test_map.Retrieve(1, &entry, &address));
ASSERT_EQ(CountedObject::count(), 1);
test_map.Clear();
ASSERT_EQ(CountedObject::count(), 1); // still holding entry in this scope
// Check that a cleared map is truly empty.
ASSERT_FALSE(test_map.Retrieve(0, &entry, &address));
ASSERT_FALSE(test_map.Retrieve(INT_MIN, &entry, &address));
ASSERT_FALSE(test_map.Retrieve(INT_MAX, &entry, &address));
// Check a single-element map.
ASSERT_TRUE(test_map.Store(10,
linked_ptr<CountedObject>(new CountedObject(1))));
ASSERT_FALSE(test_map.Retrieve(9, &entry, &address));
ASSERT_TRUE(test_map.Retrieve(10, &entry, &address));
ASSERT_EQ(CountedObject::count(), 1);
ASSERT_EQ(entry->id(), 1);
ASSERT_EQ(address, 10);
ASSERT_TRUE(test_map.Retrieve(11, &entry, &address));
ASSERT_TRUE(test_map.Retrieve(11, &entry, NULL)); // NULL ok here
// Add some more elements.
ASSERT_TRUE(test_map.Store(5,
linked_ptr<CountedObject>(new CountedObject(2))));
ASSERT_EQ(CountedObject::count(), 2);
ASSERT_TRUE(test_map.Store(20,
linked_ptr<CountedObject>(new CountedObject(3))));
ASSERT_TRUE(test_map.Store(15,
linked_ptr<CountedObject>(new CountedObject(4))));
ASSERT_FALSE(test_map.Store(10,
linked_ptr<CountedObject>(new CountedObject(5)))); // already in map
ASSERT_TRUE(test_map.Store(16,
linked_ptr<CountedObject>(new CountedObject(6))));
ASSERT_TRUE(test_map.Store(14,
linked_ptr<CountedObject>(new CountedObject(7))));
// Nothing was stored with a key under 5. Don't use ASSERT inside loops
// because it won't show exactly which key/entry/address failed.
for (AddressType key = 0; key < 5; ++key) {
if (test_map.Retrieve(key, &entry, &address)) {
fprintf(stderr,
"FAIL: retrieve %d expected false observed true @ %s:%d\n",
key, __FILE__, __LINE__);
return false;
}
}
// Check everything that was stored.
const int id_verify[] = { 0, 0, 0, 0, 0, // unused
2, 2, 2, 2, 2, // 5 - 9
1, 1, 1, 1, 7, // 10 - 14
4, 6, 6, 6, 6, // 15 - 19
3, 3, 3, 3, 3, // 20 - 24
3, 3, 3, 3, 3 }; // 25 - 29
const AddressType address_verify[] = { 0, 0, 0, 0, 0, // unused
5, 5, 5, 5, 5, // 5 - 9
10, 10, 10, 10, 14, // 10 - 14
15, 16, 16, 16, 16, // 15 - 19
20, 20, 20, 20, 20, // 20 - 24
20, 20, 20, 20, 20 }; // 25 - 29
for (AddressType key = 5; key < 30; ++key) {
if (!test_map.Retrieve(key, &entry, &address)) {
fprintf(stderr,
"FAIL: retrieve %d expected true observed false @ %s:%d\n",
key, __FILE__, __LINE__);
return false;
}
if (entry->id() != id_verify[key]) {
fprintf(stderr,
"FAIL: retrieve %d expected entry %d observed %d @ %s:%d\n",
key, id_verify[key], entry->id(), __FILE__, __LINE__);
return false;
}
if (address != address_verify[key]) {
fprintf(stderr,
"FAIL: retrieve %d expected address %d observed %d @ %s:%d\n",
key, address_verify[key], address, __FILE__, __LINE__);
return false;
}
}
// The stored objects should still be in the map.
ASSERT_EQ(CountedObject::count(), 6);
return true;
}
static bool RunTests() {
if (!DoAddressMapTest())
return false;
// Leak check.
ASSERT_EQ(CountedObject::count(), 0);
return true;
}
} // namespace
int main(int argc, char **argv) {
BPLOG_INIT(&argc, &argv);
return RunTests() ? 0 : 1;
}
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