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// Copyright 2016 the V8 project authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "src/compiler-dispatcher/compiler-dispatcher-tracer.h"
#include "testing/gtest-support.h"
namespace v8 {
namespace internal {
TEST(CompilerDispatcherTracerTest, EstimateZeroWithoutSamples) {
CompilerDispatcherTracer tracer(nullptr);
EXPECT_EQ(0.0, tracer.EstimatePrepareToParseInMs());
EXPECT_EQ(0.0, tracer.EstimateParseInMs(0));
EXPECT_EQ(0.0, tracer.EstimateParseInMs(42));
EXPECT_EQ(0.0, tracer.EstimateFinalizeParsingInMs());
EXPECT_EQ(0.0, tracer.EstimatePrepareToCompileInMs());
EXPECT_EQ(0.0, tracer.EstimateCompileInMs(0));
EXPECT_EQ(0.0, tracer.EstimateCompileInMs(42));
EXPECT_EQ(0.0, tracer.EstimateFinalizeCompilingInMs());
}
TEST(CompilerDispatcherTracerTest, Average) {
CompilerDispatcherTracer tracer(nullptr);
EXPECT_EQ(0.0, tracer.EstimatePrepareToParseInMs());
tracer.RecordPrepareToParse(1.0);
tracer.RecordPrepareToParse(2.0);
tracer.RecordPrepareToParse(3.0);
EXPECT_EQ((1.0 + 2.0 + 3.0) / 3, tracer.EstimatePrepareToParseInMs());
}
TEST(CompilerDispatcherTracerTest, SizeBasedAverage) {
CompilerDispatcherTracer tracer(nullptr);
EXPECT_EQ(0.0, tracer.EstimateParseInMs(100));
// All three samples parse 100 units/ms.
tracer.RecordParse(1.0, 100);
tracer.RecordParse(2.0, 200);
tracer.RecordParse(3.0, 300);
EXPECT_EQ(1.0, tracer.EstimateParseInMs(100));
EXPECT_EQ(5.0, tracer.EstimateParseInMs(500));
}
} // namespace internal
} // namespace v8
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