108 lines
2.4 KiB
Go
108 lines
2.4 KiB
Go
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package raindrops
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import (
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"fmt"
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"net"
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"net/http"
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"net/http/httptest"
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"net/url"
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"testing"
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"time"
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"github.com/stretchr/testify/require"
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"github.com/influxdata/telegraf/testutil"
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)
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const sampleResponse = `
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calling: 100
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writing: 200
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0.0.0.0:8080 active: 1
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0.0.0.0:8080 queued: 2
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0.0.0.0:8081 active: 3
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0.0.0.0:8081 queued: 4
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127.0.0.1:8082 active: 5
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127.0.0.1:8082 queued: 6
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0.0.0.0:8083 active: 7
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0.0.0.0:8083 queued: 8
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0.0.0.0:8084 active: 9
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0.0.0.0:8084 queued: 10
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0.0.0.0:3000 active: 11
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0.0.0.0:3000 queued: 12
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/tmp/listen.me active: 13
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/tmp/listen.me queued: 14`
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// Verify that raindrops tags are properly parsed based on the server
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func TestRaindropsTags(t *testing.T) {
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urls := []string{"http://localhost/_raindrops", "http://localhost:80/_raindrops"}
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for _, url1 := range urls {
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addr, err := url.Parse(url1)
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require.NoError(t, err)
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tagMap := getTags(addr)
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require.Contains(t, tagMap["server"], "localhost")
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}
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}
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func TestRaindropsGeneratesMetrics(t *testing.T) {
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ts := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
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if r.URL.Path != "/_raindrops" {
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w.WriteHeader(http.StatusInternalServerError)
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t.Errorf("Cannot handle request, expected: %q, actual: %q", "/_raindrops", r.URL.Path)
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return
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}
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if _, err := fmt.Fprintln(w, sampleResponse); err != nil {
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w.WriteHeader(http.StatusInternalServerError)
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t.Error(err)
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return
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}
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}))
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defer ts.Close()
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n := &Raindrops{
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Urls: []string{ts.URL + "/_raindrops"},
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httpClient: &http.Client{Transport: &http.Transport{
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ResponseHeaderTimeout: 3 * time.Second,
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}},
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}
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var acc testutil.Accumulator
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err := acc.GatherError(n.Gather)
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require.NoError(t, err)
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fields := map[string]interface{}{
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"calling": uint64(100),
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"writing": uint64(200),
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}
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addr, err := url.Parse(ts.URL)
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if err != nil {
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panic(err)
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}
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host, port, err := net.SplitHostPort(addr.Host)
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if err != nil {
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host = addr.Host
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if addr.Scheme == "http" {
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port = "80"
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} else if addr.Scheme == "https" {
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port = "443"
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} else {
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port = ""
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}
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}
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tags := map[string]string{"server": host, "port": port}
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acc.AssertContainsTaggedFields(t, "raindrops", fields, tags)
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tags = map[string]string{
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"port": "8081",
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"ip": "0.0.0.0",
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}
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fields = map[string]interface{}{
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"active": uint64(3),
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"queued": uint64(4),
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}
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acc.AssertContainsTaggedFields(t, "raindrops_listen", fields, tags)
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}
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