forked from mirror/client_golang
63 lines
1.8 KiB
Go
63 lines
1.8 KiB
Go
// +build linux
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package prometheus
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import (
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"bytes"
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"os"
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"regexp"
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"testing"
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"github.com/prometheus/common/expfmt"
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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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if err := registry.Register(NewProcessCollector(os.Getpid(), "")); err != nil {
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t.Fatal(err)
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}
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if err := registry.Register(NewProcessCollectorPIDFn(
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func() (int, error) { return os.Getpid(), nil }, "foobar"),
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); err != nil {
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t.Fatal(err)
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}
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mfs, err := registry.Gather()
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if err != nil {
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t.Fatal(err)
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}
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var buf bytes.Buffer
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for _, mf := range mfs {
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if _, err := expfmt.MetricFamilyToText(&buf, mf); err != nil {
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t.Fatal(err)
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}
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}
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for _, re := range []*regexp.Regexp{
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regexp.MustCompile("\nprocess_cpu_seconds_total [0-9]"),
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regexp.MustCompile("\nprocess_max_fds [1-9]"),
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regexp.MustCompile("\nprocess_open_fds [1-9]"),
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regexp.MustCompile("\nprocess_virtual_memory_max_bytes (-1|[1-9])"),
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regexp.MustCompile("\nprocess_virtual_memory_bytes [1-9]"),
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regexp.MustCompile("\nprocess_resident_memory_bytes [1-9]"),
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regexp.MustCompile("\nprocess_start_time_seconds [0-9.]{10,}"),
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regexp.MustCompile("\nfoobar_process_cpu_seconds_total [0-9]"),
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regexp.MustCompile("\nfoobar_process_max_fds [1-9]"),
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regexp.MustCompile("\nfoobar_process_open_fds [1-9]"),
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regexp.MustCompile("\nfoobar_process_virtual_memory_max_bytes (-1|[1-9])"),
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regexp.MustCompile("\nfoobar_process_virtual_memory_bytes [1-9]"),
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regexp.MustCompile("\nfoobar_process_resident_memory_bytes [1-9]"),
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regexp.MustCompile("\nfoobar_process_start_time_seconds [0-9.]{10,}"),
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} {
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if !re.Match(buf.Bytes()) {
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t.Errorf("want body to match %s\n%s", re, buf.String())
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}
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}
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}
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