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to reflect the new license. We understand that people may be surprised that we're moving the header entirely to discuss the new license. We checked this carefully with the Foundation's lawyer and we believe this is the correct approach. Essentially, all code in the project is now made available by the LLVM project under our new license, so you will see that the license headers include that license only. Some of our contributors have contributed code under our old license, and accordingly, we have retained a copy of our old license notice in the top-level files in each project and repository. llvm-svn: 351636
160 lines
3.6 KiB
C++
160 lines
3.6 KiB
C++
//===- llvm/unittest/ADT/StatisticTest.cpp - Statistic unit tests ---------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#include "llvm/ADT/Statistic.h"
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#include "llvm/Support/raw_ostream.h"
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#include "gtest/gtest.h"
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using namespace llvm;
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using OptionalStatistic = Optional<std::pair<StringRef, unsigned>>;
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namespace {
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#define DEBUG_TYPE "unittest"
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STATISTIC(Counter, "Counts things");
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STATISTIC(Counter2, "Counts other things");
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#if LLVM_ENABLE_STATS
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static void
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extractCounters(const std::vector<std::pair<StringRef, unsigned>> &Range,
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OptionalStatistic &S1, OptionalStatistic &S2) {
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for (const auto &S : Range) {
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if (S.first == "Counter")
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S1 = S;
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if (S.first == "Counter2")
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S2 = S;
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}
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}
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#endif
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TEST(StatisticTest, Count) {
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EnableStatistics();
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Counter = 0;
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EXPECT_EQ(Counter, 0u);
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Counter++;
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Counter++;
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#if LLVM_ENABLE_STATS
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EXPECT_EQ(Counter, 2u);
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#else
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EXPECT_EQ(Counter, 0u);
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#endif
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}
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TEST(StatisticTest, Assign) {
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EnableStatistics();
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Counter = 2;
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#if LLVM_ENABLE_STATS
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EXPECT_EQ(Counter, 2u);
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#else
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EXPECT_EQ(Counter, 0u);
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#endif
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}
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TEST(StatisticTest, API) {
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EnableStatistics();
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Counter = 0;
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EXPECT_EQ(Counter, 0u);
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Counter++;
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Counter++;
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#if LLVM_ENABLE_STATS
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EXPECT_EQ(Counter, 2u);
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#else
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EXPECT_EQ(Counter, 0u);
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#endif
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#if LLVM_ENABLE_STATS
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{
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const auto Range1 = GetStatistics();
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EXPECT_NE(Range1.begin(), Range1.end());
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EXPECT_EQ(Range1.begin() + 1, Range1.end());
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OptionalStatistic S1;
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OptionalStatistic S2;
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extractCounters(Range1, S1, S2);
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EXPECT_EQ(S1.hasValue(), true);
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EXPECT_EQ(S2.hasValue(), false);
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}
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// Counter2 will be registered when it's first touched.
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Counter2++;
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{
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const auto Range = GetStatistics();
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EXPECT_NE(Range.begin(), Range.end());
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EXPECT_EQ(Range.begin() + 2, Range.end());
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OptionalStatistic S1;
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OptionalStatistic S2;
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extractCounters(Range, S1, S2);
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EXPECT_EQ(S1.hasValue(), true);
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EXPECT_EQ(S2.hasValue(), true);
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EXPECT_EQ(S1->first, "Counter");
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EXPECT_EQ(S1->second, 2u);
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EXPECT_EQ(S2->first, "Counter2");
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EXPECT_EQ(S2->second, 1u);
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}
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#else
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Counter2++;
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auto &Range = GetStatistics();
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EXPECT_EQ(Range.begin(), Range.end());
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#endif
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#if LLVM_ENABLE_STATS
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// Check that resetting the statistics works correctly.
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// It should empty the list and zero the counters.
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ResetStatistics();
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{
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auto &Range = GetStatistics();
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EXPECT_EQ(Range.begin(), Range.end());
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EXPECT_EQ(Counter, 0u);
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EXPECT_EQ(Counter2, 0u);
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OptionalStatistic S1;
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OptionalStatistic S2;
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extractCounters(Range, S1, S2);
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EXPECT_EQ(S1.hasValue(), false);
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EXPECT_EQ(S2.hasValue(), false);
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}
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// Now check that they successfully re-register and count.
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Counter++;
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Counter2++;
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{
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auto &Range = GetStatistics();
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EXPECT_EQ(Range.begin() + 2, Range.end());
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EXPECT_EQ(Counter, 1u);
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EXPECT_EQ(Counter2, 1u);
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OptionalStatistic S1;
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OptionalStatistic S2;
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extractCounters(Range, S1, S2);
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EXPECT_EQ(S1.hasValue(), true);
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EXPECT_EQ(S2.hasValue(), true);
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EXPECT_EQ(S1->first, "Counter");
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EXPECT_EQ(S1->second, 1u);
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EXPECT_EQ(S2->first, "Counter2");
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EXPECT_EQ(S2->second, 1u);
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}
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#else
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// No need to test the output ResetStatistics(), there's nothing to reset so
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// we can't tell if it failed anyway.
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ResetStatistics();
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#endif
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}
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} // end anonymous namespace
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