Nice automatic updates up to a point, then renice if necessary.
BUG=5488
TEST=unit tests, gmerged on device and completed an update
successfully with two 100% CPU "nice -n -20" processes
running in the background.
Review URL: http://codereview.chromium.org/3053049
diff --git a/utils_unittest.cc b/utils_unittest.cc
index 575d91f..70eb6c7 100644
--- a/utils_unittest.cc
+++ b/utils_unittest.cc
@@ -157,4 +157,15 @@
EXPECT_EQ("3", utils::PartitionNumber("/dev/mmc0p3"));
}
+TEST(UtilsTest, ComparePriorities) {
+ EXPECT_LT(utils::ComparePriorities(utils::kProcessPriorityLow,
+ utils::kProcessPriorityNormal), 0);
+ EXPECT_GT(utils::ComparePriorities(utils::kProcessPriorityNormal,
+ utils::kProcessPriorityLow), 0);
+ EXPECT_EQ(utils::ComparePriorities(utils::kProcessPriorityNormal,
+ utils::kProcessPriorityNormal), 0);
+ EXPECT_GT(utils::ComparePriorities(utils::kProcessPriorityHigh,
+ utils::kProcessPriorityNormal), 0);
+}
+
} // namespace chromeos_update_engine