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Merge "Make sys_resource test more robust."

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Yabin Cui 2015-01-16 21:52:11 +00:00 committed by Gerrit Code Review
commit cfe7e75fc1
1 changed files with 69 additions and 45 deletions
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114
tests/sys_resource_test.cpp
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@ -14,11 +14,11 @@
* limitations under the License. * limitations under the License.
*/ */
#include <gtest/gtest.h>
#include <sys/resource.h> #include <sys/resource.h>
TEST(sys_resource, smoke) { #include <gtest/gtest.h>
TEST(sys_resource, rlimit_struct_size) {
#if defined(__LP64__) || defined(__GLIBC__) #if defined(__LP64__) || defined(__GLIBC__)
ASSERT_EQ(sizeof(rlimit), sizeof(rlimit64)); ASSERT_EQ(sizeof(rlimit), sizeof(rlimit64));
ASSERT_EQ(8U, sizeof(rlim_t)); ASSERT_EQ(8U, sizeof(rlim_t));
@ -26,51 +26,75 @@ TEST(sys_resource, smoke) {
ASSERT_NE(sizeof(rlimit), sizeof(rlimit64)); ASSERT_NE(sizeof(rlimit), sizeof(rlimit64));
ASSERT_EQ(4U, sizeof(rlim_t)); ASSERT_EQ(4U, sizeof(rlim_t));
#endif #endif
}
// Read with getrlimit, getrlimit64, and prlimit64. class SysResourceTest : public ::testing::Test {
// (prlimit is prlimit64 on LP64 and unimplemented on 32-bit.) protected:
rlimit l32; virtual void SetUp() {
rlimit64 l64; ASSERT_EQ(0, getrlimit(RLIMIT_CORE, &l32_));
rlimit64 pr_l64; ASSERT_EQ(0, getrlimit64(RLIMIT_CORE, &l64_));
ASSERT_EQ(0, getrlimit(RLIMIT_CORE, &l32)); ASSERT_EQ(0, prlimit64(0, RLIMIT_CORE, NULL, &pr_l64_));
ASSERT_EQ(0, getrlimit64(RLIMIT_CORE, &l64));
ASSERT_EQ(0, prlimit64(0, RLIMIT_CORE, NULL, &pr_l64));
ASSERT_EQ(l64.rlim_cur, l32.rlim_cur);
ASSERT_EQ(l64.rlim_cur, pr_l64.rlim_cur);
ASSERT_EQ(l64.rlim_max, pr_l64.rlim_max);
if (l64.rlim_max == RLIM64_INFINITY) {
ASSERT_EQ(RLIM_INFINITY, l32.rlim_max);
} else {
ASSERT_EQ(l64.rlim_max, l32.rlim_max);
} }
// Write with setrlimit and read back with everything. void CheckResourceLimits();
l32.rlim_cur = 123;
ASSERT_EQ(0, setrlimit(RLIMIT_CORE, &l32));
ASSERT_EQ(0, getrlimit(RLIMIT_CORE, &l32));
ASSERT_EQ(0, getrlimit64(RLIMIT_CORE, &l64));
ASSERT_EQ(0, prlimit64(0, RLIMIT_CORE, NULL, &pr_l64));
ASSERT_EQ(123U, l32.rlim_cur);
ASSERT_EQ(l64.rlim_cur, l32.rlim_cur);
ASSERT_EQ(l64.rlim_cur, pr_l64.rlim_cur);
// Write with setrlimit64 and read back with everything. protected:
l64.rlim_cur = 456; rlimit l32_;
ASSERT_EQ(0, setrlimit64(RLIMIT_CORE, &l64)); rlimit64 l64_;
ASSERT_EQ(0, getrlimit(RLIMIT_CORE, &l32)); rlimit64 pr_l64_;
ASSERT_EQ(0, getrlimit64(RLIMIT_CORE, &l64)); };
ASSERT_EQ(0, prlimit64(0, RLIMIT_CORE, NULL, &pr_l64));
ASSERT_EQ(456U, l32.rlim_cur);
ASSERT_EQ(l64.rlim_cur, l32.rlim_cur);
ASSERT_EQ(l64.rlim_cur, pr_l64.rlim_cur);
// Write with prlimit64 and read back with everything. void SysResourceTest::CheckResourceLimits() {
l64.rlim_cur = 789; ASSERT_EQ(0, getrlimit(RLIMIT_CORE, &l32_));
ASSERT_EQ(0, prlimit64(0, RLIMIT_CORE, &l64, NULL)); ASSERT_EQ(0, getrlimit64(RLIMIT_CORE, &l64_));
ASSERT_EQ(0, getrlimit(RLIMIT_CORE, &l32)); ASSERT_EQ(0, prlimit64(0, RLIMIT_CORE, NULL, &pr_l64_));
ASSERT_EQ(0, getrlimit64(RLIMIT_CORE, &l64)); ASSERT_EQ(l64_.rlim_cur, pr_l64_.rlim_cur);
ASSERT_EQ(0, prlimit64(0, RLIMIT_CORE, NULL, &pr_l64)); if (l64_.rlim_cur == RLIM64_INFINITY) {
ASSERT_EQ(789U, l32.rlim_cur); ASSERT_EQ(RLIM_INFINITY, l32_.rlim_cur);
ASSERT_EQ(l64.rlim_cur, l32.rlim_cur); } else {
ASSERT_EQ(l64.rlim_cur, pr_l64.rlim_cur); ASSERT_EQ(l64_.rlim_cur, l32_.rlim_cur);
}
ASSERT_EQ(l64_.rlim_max, pr_l64_.rlim_max);
if (l64_.rlim_max == RLIM64_INFINITY) {
ASSERT_EQ(RLIM_INFINITY, l32_.rlim_max);
} else {
ASSERT_EQ(l64_.rlim_max, l32_.rlim_max);
}
}
// Force rlim_max to be bigger than a constant so we can continue following test.
// Change resource limit setting with "ulimit -Hc" in the shell if this test fails.
TEST_F(SysResourceTest, RLIMIT_CORE_rlim_max_not_zero) {
ASSERT_TRUE(l32_.rlim_max == RLIM_INFINITY || l32_.rlim_max >= 456U) <<
"RLIMIT_CORE rlim_max = " << l32_.rlim_max;
}
TEST_F(SysResourceTest, get_resource_limit_equal) {
CheckResourceLimits();
}
TEST_F(SysResourceTest, setrlimit) {
l32_.rlim_cur = 123U;
ASSERT_EQ(0, setrlimit(RLIMIT_CORE, &l32_));
CheckResourceLimits();
ASSERT_EQ(123U, l32_.rlim_cur);
}
TEST_F(SysResourceTest, setrlimit64) {
l64_.rlim_cur = 456U;
ASSERT_EQ(0, setrlimit64(RLIMIT_CORE, &l64_));
CheckResourceLimits();
ASSERT_EQ(456U, l64_.rlim_cur);
}
TEST_F(SysResourceTest, prlimit64) {
pr_l64_.rlim_cur = pr_l64_.rlim_max;
ASSERT_EQ(0, prlimit64(0, RLIMIT_CORE, &pr_l64_, NULL));
CheckResourceLimits();
ASSERT_EQ(pr_l64_.rlim_max, pr_l64_.rlim_cur);
}
TEST_F(SysResourceTest, prlimit) {
// prlimit is prlimit64 on LP64 and unimplemented on 32-bit. So we only test prlimit64.
} }