74 lines
1.9 KiB
Go
74 lines
1.9 KiB
Go
// Copyright 2016 DigitalOcean
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//
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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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package collectors
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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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"regexp"
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"testing"
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"github.com/prometheus/client_golang/prometheus"
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)
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func TestPoolUsageCollector(t *testing.T) {
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for _, tt := range []struct {
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input string
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regexes []*regexp.Regexp
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}{
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{
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`
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{"pools": [
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{"name": "rbd", "id": 11, "stats": {"bytes_used": 20, "objects": 5, "rd": 4, "wr": 6}}
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]}`,
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[]*regexp.Regexp{
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regexp.MustCompile(`pool_used_bytes{pool="rbd"} 20`),
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regexp.MustCompile(`pool_objects_total{pool="rbd"} 5`),
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regexp.MustCompile(`pool_read_total{pool="rbd"} 4`),
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regexp.MustCompile(`pool_write_total{pool="rbd"} 6`),
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},
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},
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} {
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func() {
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collector := NewPoolUsageCollector(NewNoopConn(tt.input))
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if err := prometheus.Register(collector); err != nil {
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t.Fatalf("collector failed to register: %s", err)
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}
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defer prometheus.Unregister(collector)
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server := httptest.NewServer(prometheus.Handler())
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defer server.Close()
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resp, err := http.Get(server.URL)
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if err != nil {
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t.Fatalf("unexpected failed response from prometheus: %s", err)
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}
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defer resp.Body.Close()
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buf, err := ioutil.ReadAll(resp.Body)
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if err != nil {
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t.Fatalf("failed reading server response: %s", err)
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}
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for _, re := range tt.regexes {
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if !re.Match(buf) {
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t.Errorf("failed matching: %q", re)
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}
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}
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}()
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}
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}
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