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/*
* Copyright 2009, Google Inc.
* All rights reserved.
*
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* 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
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* 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
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <atlbase.h>
#include <atlcom.h>
#include <iterator>
#include <map>
#include "gtest/gtest.h"
#include "const-win32.h"
#include "aggregator-win32_unittest.h"
#include "persistent_iterator-win32.h"
using ::stats_report::BoolMetric;
using ::stats_report::CountMetric;
using ::stats_report::IntegerMetric;
using ::stats_report::MetricBase;
using ::stats_report::MetricCollection;
using ::stats_report::MetricCollectionBase;
using ::stats_report::MetricIterator;
using ::stats_report::MetricsAggregatorWin32;
using ::stats_report::PersistentMetricsIteratorWin32;
using ::stats_report::TimingMetric;
using ::stats_report::TimingSample;
using ::stats_report::kBoolType;
using ::stats_report::kCountType;
using ::stats_report::kIntegerType;
using ::stats_report::kInvalidType;
using ::stats_report::kTimingType;
namespace {
class PersistentMetricsIteratorWin32Test: public MetricsAggregatorWin32Test {
public:
bool WriteStats() {
// put some persistent metrics into the registry
MetricsAggregatorWin32 agg(coll_, kAppName);
AddStats();
bool ret = agg.AggregateMetrics();
// Reset the stats, we should now have the same stats
// in our collection as in registry.
AddStats();
return ret;
}
typedef std::map<std::string, MetricBase*> MetricsMap;
void IndexMetrics(MetricsMap *metrics) {
// build a map over the metrics in our collection
MetricIterator it(coll_), end;
for (; it != end; ++it) {
metrics->insert(std::make_pair(std::string(it->name()), *it));
}
}
};
// compare two metrics instances for equality
bool equals(MetricBase *a, MetricBase *b) {
if (!a || !b)
return false;
if (a->type() != b->type() || 0 != strcmp(a->name(), b->name()))
return false;
switch (a->type()) {
case kCountType:
return a->AsCount()->value() == b->AsCount()->value();
break;
case kTimingType: {
TimingMetric *at = a->AsTiming();
TimingMetric *bt = b->AsTiming();
return at->count() == bt->count() &&
at->sum() == bt->sum() &&
at->minimum() == bt->minimum() &&
at->maximum() == bt->maximum();
break;
}
case kIntegerType:
return a->AsInteger()->value() == b->AsInteger()->value();
break;
case kBoolType:
return a->AsBool()->value() == b->AsBool()->value();
break;
case kInvalidType:
default:
LOG(FATAL) << "Impossible metric type";
}
return false;
}
} // namespace
TEST_F(PersistentMetricsIteratorWin32Test, Basic) {
EXPECT_TRUE(WriteStats());
PersistentMetricsIteratorWin32 a;
PersistentMetricsIteratorWin32 b;
PersistentMetricsIteratorWin32 c(kAppName);
EXPECT_TRUE(a == b);
EXPECT_TRUE(b == a);
EXPECT_FALSE(a == c);
EXPECT_FALSE(b == c);
EXPECT_FALSE(c == a);
EXPECT_FALSE(c == b);
++a;
EXPECT_TRUE(a == b);
EXPECT_TRUE(b == a);
}
// Test to see whether we can reliably roundtrip metrics through
// the registry without molestation
TEST_F(PersistentMetricsIteratorWin32Test, UnmolestedValues) {
EXPECT_TRUE(WriteStats());
MetricsMap metrics;
IndexMetrics(&metrics);
PersistentMetricsIteratorWin32 it(kAppName), end;
int count = 0;
for (; it != end; ++it) {
MetricsMap::iterator found = metrics.find(it->name());
// make sure we found it, and that it's unmolested in value
EXPECT_TRUE(found != metrics.end() && equals(found->second, *it));
count++;
}
// Did we visit all metrics?
EXPECT_EQ(count, metrics.size());
}