1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
|
require_relative '../../spec_helper'
describe "Process.clock_getres" do
# These are documented
it "with :GETTIMEOFDAY_BASED_CLOCK_REALTIME reports 1 microsecond" do
Process.clock_getres(:GETTIMEOFDAY_BASED_CLOCK_REALTIME, :nanosecond).should == 1_000
end
it "with :TIME_BASED_CLOCK_REALTIME reports 1 second" do
Process.clock_getres(:TIME_BASED_CLOCK_REALTIME, :nanosecond).should == 1_000_000_000
end
platform_is_not :windows do
it "with :GETRUSAGE_BASED_CLOCK_PROCESS_CPUTIME_ID reports 1 microsecond" do
Process.clock_getres(:GETRUSAGE_BASED_CLOCK_PROCESS_CPUTIME_ID, :nanosecond).should == 1_000
end
end
# These are observed
platform_is :linux, :darwin, :windows do
it "with Process::CLOCK_REALTIME reports at least 10 millisecond" do
Process.clock_getres(Process::CLOCK_REALTIME, :nanosecond).should <= 10_000_000
end
end
platform_is :linux, :darwin, :windows do
it "with Process::CLOCK_MONOTONIC reports at least 10 millisecond" do
Process.clock_getres(Process::CLOCK_MONOTONIC, :nanosecond).should <= 10_000_000
end
end
end
|
