forked from mirror/client_golang
76 lines
2.4 KiB
Go
76 lines
2.4 KiB
Go
// Copyright 2018 The Prometheus Authors
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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// +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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