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
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
|
# frozen_string_literal: true
require 'spec_helper'
RSpec.describe Gitlab::Memory::ReportsDaemon, :aggregate_failures do
let(:reporter) { instance_double(Gitlab::Memory::Reporter) }
let(:reports) { nil }
subject(:daemon) { described_class.new(reporter: reporter, reports: reports) }
describe '#run_thread' do
before do
# make sleep no-op
allow(daemon).to receive(:sleep) {}
# let alive return 3 times: true, true, false
allow(daemon).to receive(:alive).and_return(true, true, false)
end
context 'with default reports' do
it 'runs them using the given reporter' do
expect(reporter).to receive(:run_report).twice.with(an_instance_of(Gitlab::Memory::Reports::JemallocStats))
daemon.send(:run_thread)
end
end
context 'with inactive reports' do
# rubocop: disable RSpec/VerifiedDoubles
# We test how ReportsDaemon could be extended in the future
# We configure it with new reports classes which are not yet defined so we cannot make this an instance_double.
let(:active_report_1) { double("Active Report 1", active?: true) }
let(:active_report_2) { double("Active Report 2", active?: true) }
let(:inactive_report) { double("Inactive Report", active?: false) }
# rubocop: enable RSpec/VerifiedDoubles
let(:reports) do
[active_report_1, active_report_2, inactive_report]
end
it 'runs only active reports' do
expect(reporter).to receive(:run_report).ordered.with(active_report_1)
expect(reporter).to receive(:run_report).ordered.with(active_report_2)
expect(reporter).to receive(:run_report).ordered.with(active_report_1)
expect(reporter).to receive(:run_report).ordered.with(active_report_2)
expect(reporter).not_to receive(:run_report).with(inactive_report)
daemon.send(:run_thread)
end
end
context 'sleep timers logic' do
it 'wakes up every (fixed interval + defined delta), sleeps between reports each cycle' do
stub_env('GITLAB_DIAGNOSTIC_REPORTS_SLEEP_MAX_DELTA_S', 1) # rand(1) == 0, so we will have fixed sleep interval
daemon = described_class.new(reporter: reporter, reports: reports)
allow(daemon).to receive(:alive).and_return(true, true, false)
allow(reporter).to receive(:run_report)
expect(daemon).to receive(:sleep).with(described_class::DEFAULT_SLEEP_S).ordered
expect(daemon).to receive(:sleep).with(described_class::DEFAULT_SLEEP_BETWEEN_REPORTS_S).ordered
expect(daemon).to receive(:sleep).with(described_class::DEFAULT_SLEEP_S).ordered
expect(daemon).to receive(:sleep).with(described_class::DEFAULT_SLEEP_BETWEEN_REPORTS_S).ordered
daemon.send(:run_thread)
end
end
end
describe '#stop_working' do
it 'changes :alive to false' do
expect { daemon.send(:stop_working) }.to change { daemon.send(:alive) }.from(true).to(false)
end
end
context 'timer intervals settings' do
context 'when no settings are set in the environment' do
it 'uses defaults' do
daemon = described_class.new
expect(daemon.sleep_s).to eq(described_class::DEFAULT_SLEEP_S)
expect(daemon.sleep_max_delta_s).to eq(described_class::DEFAULT_SLEEP_MAX_DELTA_S)
expect(daemon.sleep_between_reports_s).to eq(described_class::DEFAULT_SLEEP_BETWEEN_REPORTS_S)
end
end
context 'when settings are passed through the environment' do
before do
stub_env('GITLAB_DIAGNOSTIC_REPORTS_SLEEP_S', 100)
stub_env('GITLAB_DIAGNOSTIC_REPORTS_SLEEP_MAX_DELTA_S', 50)
stub_env('GITLAB_DIAGNOSTIC_REPORTS_SLEEP_BETWEEN_REPORTS_S', 2)
end
it 'uses provided values' do
daemon = described_class.new
expect(daemon.sleep_s).to eq(100)
expect(daemon.sleep_max_delta_s).to eq(50)
expect(daemon.sleep_between_reports_s).to eq(2)
end
end
end
end
|
