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
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
require 'spec_helper'
describe Gitlab::Metrics::Transaction do
let(:transaction) { described_class.new }
describe '#duration' do
it 'returns the duration of a transaction in seconds' do
transaction.run { sleep(0.5) }
expect(transaction.duration).to be >= 0.5
end
end
describe '#allocated_memory' do
it 'returns the allocated memory in bytes' do
transaction.run { 'a' * 32 }
expect(transaction.allocated_memory).to be_a_kind_of(Numeric)
end
end
describe '#run' do
it 'yields the supplied block' do
expect { |b| transaction.run(&b) }.to yield_control
end
it 'stores the transaction in the current thread' do
transaction.run do
expect(Thread.current[described_class::THREAD_KEY]).to eq(transaction)
end
end
it 'removes the transaction from the current thread upon completion' do
transaction.run { }
expect(Thread.current[described_class::THREAD_KEY]).to be_nil
end
end
describe '#add_metric' do
it 'adds a metric to the transaction' do
expect(Gitlab::Metrics::Metric).to receive(:new).
with('rails_foo', { number: 10 }, {})
transaction.add_metric('foo', number: 10)
end
end
describe '#increment' do
it 'increments a counter' do
transaction.increment(:time, 1)
transaction.increment(:time, 2)
values = { duration: 0.0, time: 3, allocated_memory: a_kind_of(Numeric) }
expect(transaction).to receive(:add_metric).
with('transactions', values, {})
transaction.track_self
end
end
describe '#set' do
it 'sets a value' do
transaction.set(:number, 10)
values = {
duration: 0.0,
number: 10,
allocated_memory: a_kind_of(Numeric)
}
expect(transaction).to receive(:add_metric).
with('transactions', values, {})
transaction.track_self
end
end
describe '#add_tag' do
it 'adds a tag' do
transaction.add_tag(:foo, 'bar')
expect(transaction.tags).to eq({ foo: 'bar' })
end
end
describe '#finish' do
it 'tracks the transaction details and submits them to Sidekiq' do
expect(transaction).to receive(:track_self)
expect(transaction).to receive(:submit)
transaction.finish
end
end
describe '#track_self' do
it 'adds a metric for the transaction itself' do
values = {
duration: transaction.duration,
allocated_memory: a_kind_of(Numeric)
}
expect(transaction).to receive(:add_metric).
with('transactions', values, {})
transaction.track_self
end
end
describe '#submit' do
it 'submits the metrics to Sidekiq' do
transaction.track_self
expect(Gitlab::Metrics).to receive(:submit_metrics).
with([an_instance_of(Hash)])
transaction.submit
end
it 'adds the action as a tag for every metric' do
transaction.action = 'Foo#bar'
transaction.track_self
hash = {
series: 'rails_transactions',
tags: { action: 'Foo#bar' },
values: { duration: 0.0, allocated_memory: a_kind_of(Numeric) },
timestamp: an_instance_of(Fixnum)
}
expect(Gitlab::Metrics).to receive(:submit_metrics).
with([hash])
transaction.submit
end
end
end