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authorDevtools Arcadia <arcadia-devtools@yandex-team.ru>2022-02-07 18:08:42 +0300
committerDevtools Arcadia <arcadia-devtools@mous.vla.yp-c.yandex.net>2022-02-07 18:08:42 +0300
commit1110808a9d39d4b808aef724c861a2e1a38d2a69 (patch)
treee26c9fed0de5d9873cce7e00bc214573dc2195b7 /util/system/nice_ut.cpp
downloadydb-1110808a9d39d4b808aef724c861a2e1a38d2a69.tar.gz
intermediate changes
ref:cde9a383711a11544ce7e107a78147fb96cc4029
Diffstat (limited to 'util/system/nice_ut.cpp')
-rw-r--r--util/system/nice_ut.cpp42
1 files changed, 42 insertions, 0 deletions
diff --git a/util/system/nice_ut.cpp b/util/system/nice_ut.cpp
new file mode 100644
index 0000000000..ae0051f285
--- /dev/null
+++ b/util/system/nice_ut.cpp
@@ -0,0 +1,42 @@
+#include "nice.h"
+
+#include "platform.h"
+
+#include <library/cpp/testing/unittest/registar.h>
+
+#ifdef _unix_
+ #include <sys/resource.h>
+
+static int GetPriority() {
+ return getpriority(PRIO_PROCESS, 0);
+}
+#endif
+
+Y_UNIT_TEST_SUITE(NiceTest) {
+ Y_UNIT_TEST(TestNiceZero) {
+ UNIT_ASSERT(Nice(0));
+ UNIT_ASSERT(Nice(0));
+ }
+#ifdef _unix_
+ Y_UNIT_TEST(TestNice) {
+ int prio = GetPriority();
+
+ if (prio >= 10) {
+ return;
+ }
+
+ if (Nice(-2)) {
+ UNIT_ASSERT_VALUES_EQUAL(GetPriority(), prio - 2);
+ prio -= 2;
+ } else {
+ UNIT_ASSERT_VALUES_EQUAL(GetPriority(), prio);
+ }
+ UNIT_ASSERT(Nice(1));
+ UNIT_ASSERT_VALUES_EQUAL(GetPriority(), prio + 1);
+ UNIT_ASSERT(Nice(0));
+ UNIT_ASSERT_VALUES_EQUAL(GetPriority(), prio + 1);
+ UNIT_ASSERT(Nice(2));
+ UNIT_ASSERT_VALUES_EQUAL(GetPriority(), prio + 3);
+ }
+#endif
+}