I have been writing unit tests for my Prometheus alerts and I have just increased the interval range in my alert, therefore I need to modify my current test. This is my modified test:
- interval: 15m
# Series data.
input_series:
- series: 'some_bucket{service_name="some-service", le="1000"}'
values: 6 6 6 6 6 6 6
- series: 'some_bucket{service_name="some-service", le="10000"}'
values: 10 11 12 13 14 14 14
- series: 'some_bucket{service_name="some-service", le="+Inf"}'
values: 10 100 200 300 400 500 600
alert_rule_test:
- eval_time: 5m
alertname: someName
exp_alerts: []
- eval_time: 15m
alertname: someName
exp_alerts:
- exp_labels:
severity: error
service_name: some-service
exp_annotations:
summary: "a summary"
description: "adescription"
and my alert rule is:
histogram_quantile(0.95, sum by(le) (rate(some_bucket{service_name="some-service"}[15m]))) >= 1000
The test is working fine, it does not trigger at the eval_time of 5 minutes and it does when it hits the correct interval. My question is regarding the interval set at the top
- interval: 15m
My understanding is that this should be the scraping interval, but if I change it to 1 the test fails. Why is that? Does it mean that my time series/input data needs changing? Can you help me navigate the expected values for the input series?
Thank you