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89 lines
2.0 KiB
Go
89 lines
2.0 KiB
Go
package metrics_test
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import (
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"fmt"
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"io"
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"net/http"
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"net/http/httptest"
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"strings"
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"testing"
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. "github.com/onsi/ginkgo"
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. "github.com/onsi/gomega"
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"github.com/containrrr/watchtower/pkg/api"
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"github.com/containrrr/watchtower/pkg/metrics"
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)
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const (
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token = "123123123"
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getURL = "http://localhost:8080/v1/metrics"
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)
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func TestMetrics(t *testing.T) {
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RegisterFailHandler(Fail)
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RunSpecs(t, "Metrics Suite")
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}
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func getWithToken(handler http.Handler) map[string]string {
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metricMap := map[string]string{}
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respWriter := httptest.NewRecorder()
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req := httptest.NewRequest("GET", getURL, nil)
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req.Header.Add("Authorization", fmt.Sprintf("Bearer %s", token))
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handler.ServeHTTP(respWriter, req)
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res := respWriter.Result()
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body, _ := io.ReadAll(res.Body)
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for _, line := range strings.Split(string(body), "\n") {
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if len(line) < 1 || line[0] == '#' {
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continue
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}
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parts := strings.Split(line, " ")
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metricMap[parts[0]] = parts[1]
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}
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return metricMap
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}
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var _ = Describe("the metrics API", func() {
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httpAPI := api.New(token)
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httpAPI.EnableMetrics()
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tryGetMetrics := func() map[string]string { return getWithToken(httpAPI.Handler()) }
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It("should serve metrics", func() {
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Expect(tryGetMetrics()).To(HaveKeyWithValue("watchtower_containers_updated", "0"))
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metric := &metrics.Metric{
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Scanned: 4,
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Updated: 3,
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Failed: 1,
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}
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metrics.RegisterScan(metric)
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Eventually(metrics.Default().QueueIsEmpty).Should(BeTrue())
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Eventually(tryGetMetrics).Should(SatisfyAll(
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HaveKeyWithValue("watchtower_containers_updated", "3"),
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HaveKeyWithValue("watchtower_containers_failed", "1"),
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HaveKeyWithValue("watchtower_containers_scanned", "4"),
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HaveKeyWithValue("watchtower_scans_total", "1"),
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HaveKeyWithValue("watchtower_scans_skipped", "0"),
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))
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for i := 0; i < 3; i++ {
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metrics.RegisterScan(nil)
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}
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Eventually(metrics.Default().QueueIsEmpty).Should(BeTrue())
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Eventually(tryGetMetrics).Should(SatisfyAll(
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HaveKeyWithValue("watchtower_scans_total", "4"),
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HaveKeyWithValue("watchtower_scans_skipped", "3"),
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))
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})
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})
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