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pint/internal/parser

internal/parser/fuzz_test.go

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1package parser_test
2
3import (
4 "strings"
5 "testing"
6
7 "github.com/cloudflare/pint/internal/parser"
8)
9
10func FuzzParse(f *testing.F) {
11 testcases := []string{
12 `# head comment
13- record: foo # record comment
14 expr: foo offset 10m # expr comment
15 # pre-labels comment
16 labels:
17 # pre-foo comment
18 foo: bar
19 # post-foo comment
20 bob: alice
21# foot comment
22`,
23 `
24- alert: foo
25 annotations: {}
26 expr: bar
27 annotations: {}
28`,
29 `- record: name
30expr: sum(foo)
31labels:
32 foo: bar
33 bob: alice
34`,
35 `
36groups:
37- name: custom_rules
38 rules:
39 - record: name
40 expr: sum(foo)
41 labels:
42 foo: bar
43 bob: alice
44`,
45 `- alert: Down
46 expr: |
47 up == 0
48 for: |+
49 11m
50 labels:
51 severity: critical
52 annotations:
53 uri: https://docs.example.com/down.html
54
55- record: >
56 foo
57 expr: |-
58 bar
59 /
60 baz > 1
61 labels: {}
62`,
63 `- alert: Foo
64expr:
65 (
66 xxx
67 -
68 yyy
69 ) * bar > 0
70 and on(instance, device) baz
71for: 30m
72`,
73 `
74# pint ignore/begin
75{%- set foo = 1 %}
76{% set bar = 2 -%}
77{# comment #}
78{#
79 comment
80#}
81# pint ignore/end
82
83- record: colo_job:up:count
84 expr: sum(foo) without(job)
85
86- record: invalid
87 expr: sum(foo) by ())
88
89# pint ignore/begin
90- record: colo_job:down:count
91 expr: up == {{ foo }}
92# pint ignore/end
93
94- record: colo:multiline
95 expr: |
96 sum(
97 multiline
98 ) without(job, instance)
99
100- record: colo:multiline:sum
101 expr: |
102 sum(sum) without(job)
103 +
104 sum(sum) without(job)
105
106- record: colo:multiline2
107 expr: >-
108 sum(
109 multiline2
110 ) without(job, instance)
111
112- record: colo_job:up:byinstance
113 expr: sum(byinstance) by(instance)
114
115- record: instance_mode:node_cpu:rate4m
116 expr: sum(rate(node_cpu_seconds_total[4m])) without (cpu)
117
118- record: instance_mode:node_cpu:rate4m
119 expr: sum(rate(node_cpu_seconds_total[5m])) without (cpu)
120
121- record: instance_mode:node_cpu:rate5min
122 expr: sum(irate(node_cpu_seconds_total[5m])) without (cpu)
123
124- alert: Instance Is Down
125 expr: up == 0
126`,
127 `
128- record: colo_job:down:count
129 expr: up{job=~"foo"} == 0
130
131- record: colo_job:down:count
132 expr: up{job!~"foo"} == 0
133`,
134 `
135- record: colo_job:fl_cf_html_bytes_in:rate10m
136 expr: sum(rate(fl_cf_html_bytes_in[10m])) WITHOUT (colo_id, instance, node_type, region, node_status, job, colo_name)
137- record: colo_job:foo:rate1m
138 expr: sum(rate(foo[1m])) WITHOUT (instance)
139- record: colo_job:foo:irate3m
140 expr: sum(irate(foo[3m])) WITHOUT (colo_id)
141`,
142 `
143xxx:
144 xxx:
145 xxx:
146
147- xx
148- yyy
149`,
150 `
151- record: "colo:test1"
152 expr: topk(6, sum(rate(edgeworker_subrequest_errorCount{cordon="free"}[5m])) BY (zoneId,job))
153- record: "colo:test2"
154 expr: topk(6, sum(rate(edgeworker_subrequest_errorCount{cordon="free"}[10m])) without (instance))
155`,
156 `- alert: Always
157 expr: up
158- alert: AlwaysIgnored
159 expr: up # pint disable alerts/comparison
160 labels:
161 severity: warning
162 annotations:
163 url: "https://wiki.example.com/page/ServiceIsDown.html"
164- alert: ServiceIsDown
165 expr: up == 0
166- alert: ServiceIsDown
167 expr: up == 0
168 labels:
169 severity: bad
170 annotations:
171 url: bad
172- alert: ServiceIsDown
173 expr: up == 0
174 labels:
175 severity: warning
176 annotations:
177 url: "https://wiki.example.com/page/ServiceIsDown.html"
178`,
179 `
180- alert: Foo Is Down
181 expr: up{job="foo"} == 0
182 annotations:
183 url: "https://wiki.example.com/page/ServiceIsDown.html"
184 summary: 'Instance {{ $label.instance }} down'
185 func: '{{ $valuexx | xxx }}'
186 labels:
187 severity: warning
188 summary: 'Instance {{ $label.instance }} down'
189 func: '{{ $value | xxx }}'
190 bar: 'Some {{$value}} value'
191 val: '{{ .Value|humanizeDuration }}'
192 ignore: '$value is not a variable'
193`,
194 `groups:
195- name: example
196 rules:
197
198 # Alert for any instance that is unreachable for >5 minutes.
199 - alert: InstanceDown
200 expr: up == 0
201 for: 5m
202 labels:
203 severity: page
204 annotations:
205 summary: "Instance {{ $labels.instance }} down"
206 description: "{{ $labels.instance }} of job {{ $labels.job }} has been down for more than 5 minutes."
207
208 # Alert for any instance that has a median request latency >1s.
209 - alert: APIHighRequestLatency
210 expr: sum by (instance) (http_inprogress_requests) > 0
211 for: 10m
212 annotations:
213 summary: "High request latency on {{ $labels.instance }}"
214 description: "{{ $labels.instance }} has a median request latency above 1s (current value: {{ $value }}s)"
215`,
216 `- alert: Good
217expr: up == 0
218for: 2m
219labels:
220 component: foo
221
222alert: Bad
223expr: up == 0
224for: 2m
225labels:
226 component: foo
227`,
228 `
229- record: disabled
230 expr: sum(errors_total) by ) # pint disable promql/syntax
231
232- record: active
233 expr: sum(errors_total) by )
234
235- record: disabled
236 # pint disable promql/aggregate(job:true)
237 expr: sum(errors_total) without(job)
238
239- record: disabled
240 # pint disable promql/aggregate
241 expr: sum(errors_total) without(job)
242
243- record: active
244 expr: sum(errors_total) without(job)
245
246- alert: disabled
247 expr: sum(errors_total) by ) # pint disable promql/syntax
248
249- alert: active
250 expr: sum(errors_total) by )
251
252- alert: disabled
253 # pint disable promql/aggregate(job:true)
254 expr: sum(errors_total) without(job) > 0
255
256- alert: disabled
257 # pint disable promql/aggregate
258 expr: sum(errors_total) without(job) > 0
259
260- alert: active
261 expr: sum(errors_total) without(job)
262`,
263 `groups:
264- name: "haproxy.api_server.rules"
265 rules:
266 - alert: HaproxyServerHealthcheckFailure
267 expr: increase(haproxy_server_check_failures_total[15m]) > 100
268 for: 5m
269 labels:
270 severity: 24x7
271 annotations:
272 summary: "HAProxy server healthcheck failure (instance {{ $labels.instance }})"
273 description: "Some server healthcheck are failing on {{ $labels.server }}\n VALUE = {{ $value }}\n LABELS: {{ $labels }}"
274
275`,
276 }
277 for _, tc := range testcases {
278 f.Add(tc)
279 }
280 p := parser.NewParser(parser.DefaultOptions)
281 f.Fuzz(func(t *testing.T, s string) {
282 t.Logf("Parsing: [%s]\n", s)
283 _ = p.Parse(strings.NewReader(s))
284 })
285}
286