2 * Copyright 2016 Facebook, Inc.
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
8 * http://www.apache.org/licenses/LICENSE-2.0
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
17 #include <folly/MallctlHelper.h>
18 #include <folly/Malloc.h>
19 #include <folly/init/Init.h>
20 #include <folly/portability/GTest.h>
22 using namespace folly;
24 const char* malloc_conf = "purge:decay,decay_time:10";
26 class MallctlHelperTest : public ::testing::Test {
28 void TearDown() override {
29 // Reset decay_time of arena 0 to 10 seconds.
30 ssize_t decayTime = 10;
31 EXPECT_NO_THROW(mallctlWrite("arena.0.decay_time", decayTime));
34 static ssize_t readArena0DecayTime() {
35 ssize_t decayTime = 0;
36 EXPECT_NO_THROW(mallctlRead("arena.0.decay_time", &decayTime));
41 TEST_F(MallctlHelperTest, valid_read) {
42 ssize_t decayTime = 0;
43 EXPECT_NO_THROW(mallctlRead("opt.decay_time", &decayTime));
44 EXPECT_EQ(10, decayTime);
47 TEST_F(MallctlHelperTest, invalid_read) {
48 ssize_t decayTime = 0;
49 EXPECT_THROW(mallctlRead("invalid", &decayTime), std::runtime_error);
50 EXPECT_EQ(0, decayTime);
53 TEST_F(MallctlHelperTest, valid_write) {
54 ssize_t decayTime = 20;
55 EXPECT_NO_THROW(mallctlWrite("arena.0.decay_time", decayTime));
56 EXPECT_EQ(20, readArena0DecayTime());
59 TEST_F(MallctlHelperTest, invalid_write) {
60 ssize_t decayTime = 20;
61 EXPECT_THROW(mallctlWrite("invalid", decayTime), std::runtime_error);
62 EXPECT_EQ(10, readArena0DecayTime());
65 TEST_F(MallctlHelperTest, valid_read_write) {
66 ssize_t oldDecayTime = 0;
67 ssize_t newDecayTime = 20;
69 mallctlReadWrite("arena.0.decay_time", &oldDecayTime, newDecayTime));
70 EXPECT_EQ(10, oldDecayTime);
71 EXPECT_EQ(20, readArena0DecayTime());
74 TEST_F(MallctlHelperTest, invalid_read_write) {
75 ssize_t oldDecayTime = 0;
76 ssize_t newDecayTime = 20;
78 mallctlReadWrite("invalid", &oldDecayTime, newDecayTime),
80 EXPECT_EQ(0, oldDecayTime);
81 EXPECT_EQ(10, readArena0DecayTime());
84 TEST_F(MallctlHelperTest, valid_call) {
85 EXPECT_NO_THROW(mallctlCall("arena.0.decay"));
88 TEST_F(MallctlHelperTest, invalid_call) {
89 EXPECT_THROW(mallctlCall("invalid"), std::runtime_error);
92 int main(int argc, char** argv) {
93 ::testing::InitGoogleTest(&argc, argv);
95 return usingJEMalloc() ? RUN_ALL_TESTS() : 0;