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
|
# frozen_string_literal: true
require 'spec_helper'
RSpec.describe Grafana::Client do
let(:grafana_url) { 'https://grafanatest.com/-/grafana-project' }
let(:token) { 'test-token' }
subject(:client) { described_class.new(api_url: grafana_url, token: token) }
shared_examples 'calls grafana api' do
let!(:grafana_api_request) { stub_grafana_request(grafana_api_url) }
it 'calls grafana api' do
subject
expect(grafana_api_request).to have_been_requested
end
end
shared_examples 'no redirects' do
let(:redirect_to) { 'https://redirected.example.com' }
let(:other_url) { 'https://grafana.example.org' }
let!(:redirected_req_stub) { stub_grafana_request(other_url) }
let!(:redirect_req_stub) do
stub_grafana_request(
grafana_api_url,
status: 302,
headers: { location: redirect_to }
)
end
it 'does not follow redirects' do
expect { subject }.to raise_exception(
Grafana::Client::Error,
'Grafana response status code: 302, Message: {}'
)
expect(redirect_req_stub).to have_been_requested
expect(redirected_req_stub).not_to have_been_requested
end
end
shared_examples 'handles exceptions' do
exceptions = {
Gitlab::HTTP::Error => 'Error when connecting to Grafana',
Net::OpenTimeout => 'Connection to Grafana timed out',
SocketError => 'Received SocketError when trying to connect to Grafana',
OpenSSL::SSL::SSLError => 'Grafana returned invalid SSL data',
Errno::ECONNREFUSED => 'Connection refused',
StandardError => 'Grafana request failed due to StandardError'
}
exceptions.each do |exception, message|
context exception.to_s do
before do
stub_request(:get, grafana_api_url).to_raise(exception)
end
it do
expect { subject }
.to raise_exception(Grafana::Client::Error, message)
end
end
end
end
describe '#get_dashboard' do
let(:grafana_api_url) { 'https://grafanatest.com/-/grafana-project/api/dashboards/uid/FndfgnX' }
subject do
client.get_dashboard(uid: 'FndfgnX')
end
it_behaves_like 'calls grafana api'
it_behaves_like 'no redirects'
it_behaves_like 'handles exceptions'
end
describe '#get_datasource' do
let(:grafana_api_url) { 'https://grafanatest.com/-/grafana-project/api/datasources/name/Test%20Name' }
subject do
client.get_datasource(name: 'Test Name')
end
it_behaves_like 'calls grafana api'
it_behaves_like 'no redirects'
it_behaves_like 'handles exceptions'
end
describe '#proxy_datasource' do
let(:grafana_api_url) do
'https://grafanatest.com/-/grafana-project/' \
'api/datasources/proxy/' \
'1/api/v1/query_range' \
'?query=rate(relevant_metric)' \
'&start=1570441248&end=1570444848&step=900'
end
subject do
client.proxy_datasource(
datasource_id: '1',
proxy_path: 'api/v1/query_range',
query: {
query: 'rate(relevant_metric)',
start: 1570441248,
end: 1570444848,
step: 900
}
)
end
it_behaves_like 'calls grafana api'
it_behaves_like 'no redirects'
it_behaves_like 'handles exceptions'
end
private
def stub_grafana_request(url, body: {}, status: 200, headers: {})
stub_request(:get, url)
.to_return(
status: status,
headers: { 'Content-Type' => 'application/json' }.merge(headers),
body: body.to_json
)
end
end
|
