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Contents
require "spec_helper"
describe GitLab::Exporter::PrometheusMetrics do
it "supports simple metrics" do
expect(subject.add("mymetric", 1.1).to_s).to match(/mymetric 1.1 \d*$/)
end
it "supports metrics with one label" do
expect(subject.add("mymetric", 1.2, mylabel: "x").to_s).to match(/mymetric{mylabel="x"} 1.2 \d*$/)
end
it "supports metrics with many labels" do
expect(subject.add("mymetric", 1.3, mylabel: "x", myotherlabel: "y").to_s).to match(
/mymetric{mylabel="x",myotherlabel="y"} 1.3 \d*$/
)
end
it "fails to add a non-numeric metric value" do
expect {
subject.add("mymetric", "1.4", mylabel: "x", myotherlabel: "y").to_s
}.to raise_error(RuntimeError)
expect {
subject.add("mymetric", "invalid", mylabel: "x", myotherlabel: "y").to_s
}.to raise_error(RuntimeError)
end
it "supports described metrics" do
time = Time.now
allow(Time).to receive(:now).and_return(time)
described_class.describe("mymetric", "description")
described_class.describe("missingmetric", "otherdescription")
subject.add("mymetric", 1.3, mylabel: "x", myotherlabel: "y")
expect(subject.to_s).to eq(<<~METRICS)
# HELP mymetric description
mymetric{mylabel="x",myotherlabel="y"} 1.3 #{(time.to_f * 1000).to_i}
METRICS
described_class.clear_descriptions
end
end
Version data entries
50 entries across 50 versions & 1 rubygems