55 lines
1.5 KiB
Go
55 lines
1.5 KiB
Go
package prometheus
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import (
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"io/ioutil"
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"net/http"
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"net/http/httptest"
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"os"
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"regexp"
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"testing"
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"github.com/prometheus/procfs"
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)
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func TestProcessCollector(t *testing.T) {
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if _, err := procfs.Self(); err != nil {
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t.Skipf("skipping TestProcessCollector, procfs not available: %s", err)
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}
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registry := newRegistry()
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registry.Register(NewProcessCollector(os.Getpid(), ""))
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registry.Register(NewProcessCollectorPIDFn(
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func() (int, error) { return os.Getpid(), nil }, "foobar"))
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s := httptest.NewServer(InstrumentHandler("prometheus", registry))
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defer s.Close()
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r, err := http.Get(s.URL)
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if err != nil {
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t.Fatal(err)
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}
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defer r.Body.Close()
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body, err := ioutil.ReadAll(r.Body)
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if err != nil {
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t.Fatal(err)
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}
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for _, re := range []*regexp.Regexp{
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regexp.MustCompile("process_cpu_seconds_total [0-9]"),
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regexp.MustCompile("process_max_fds [0-9]{2,}"),
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regexp.MustCompile("process_open_fds [1-9]"),
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regexp.MustCompile("process_virtual_memory_bytes [1-9]"),
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regexp.MustCompile("process_resident_memory_bytes [1-9]"),
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regexp.MustCompile("process_start_time_seconds [0-9.]{10,}"),
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regexp.MustCompile("foobar_process_cpu_seconds_total [0-9]"),
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regexp.MustCompile("foobar_process_max_fds [0-9]{2,}"),
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regexp.MustCompile("foobar_process_open_fds [1-9]"),
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regexp.MustCompile("foobar_process_virtual_memory_bytes [1-9]"),
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regexp.MustCompile("foobar_process_resident_memory_bytes [1-9]"),
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regexp.MustCompile("foobar_process_start_time_seconds [0-9.]{10,}"),
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} {
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if !re.Match(body) {
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t.Errorf("want body to match %s\n%s", re, body)
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}
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}
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}
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