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// Copyright (c) 2014, the Dart project authors. Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.
#include "platform/assert.h"
#include "vm/dart_api_impl.h"
#include "vm/dart_api_state.h"
#include "vm/globals.h"
#include "vm/json_stream.h"
#include "vm/metrics.h"
#include "vm/unit_test.h"
namespace dart {
#ifndef PRODUCT
VM_UNIT_TEST_CASE(Metric_Simple) {
TestCase::CreateTestIsolate();
{
Metric metric;
// Initialize metric.
metric.InitInstance(Isolate::Current(), "a.b.c", "foobar",
Metric::kCounter);
EXPECT_EQ(0, metric.value());
metric.increment();
EXPECT_EQ(1, metric.value());
metric.set_value(44);
EXPECT_EQ(44, metric.value());
}
Dart_ShutdownIsolate();
}
class MyMetric : public Metric {
protected:
int64_t Value() const {
// 99 bytes.
return 99;
}
public:
// Just used for testing.
int64_t LeakyValue() const { return Value(); }
};
VM_UNIT_TEST_CASE(Metric_OnDemand) {
TestCase::CreateTestIsolate();
{
Thread* thread = Thread::Current();
TransitionNativeToVM transition(thread);
StackZone zone(thread);
HANDLESCOPE(thread);
MyMetric metric;
metric.InitInstance(Isolate::Current(), "a.b.c", "foobar", Metric::kByte);
// value is still the default value.
EXPECT_EQ(0, metric.value());
// Call LeakyValue to confirm that Value returns constant 99.
EXPECT_EQ(99, metric.LeakyValue());
// Serialize to JSON.
JSONStream js;
metric.PrintJSON(&js);
const char* json = js.ToCString();
EXPECT_STREQ(
"{\"type\":\"Counter\",\"name\":\"a.b.c\",\"description\":"
"\"foobar\",\"unit\":\"byte\","
"\"fixedId\":true,\"id\":\"metrics\\/native\\/a.b.c\""
",\"value\":99.000000}",
json);
}
Dart_ShutdownIsolate();
}
#endif // !PRODUCT
} // namespace dart