70 lines
1.7 KiB
Go
70 lines
1.7 KiB
Go
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// 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 TestClusterUsage(t *testing.T) {
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var (
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expected = `
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{
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"stats": {
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"total_bytes": 10,
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"total_used_bytes": 6,
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"total_avail_bytes": 4,
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"total_objects": 1
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}
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}`
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)
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collector := NewClusterUsageCollector(NewNoopConn(expected))
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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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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 []*regexp.Regexp{
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regexp.MustCompile(`ceph_cluster_capacity_bytes 10`),
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regexp.MustCompile(`ceph_cluster_used_bytes 6`),
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regexp.MustCompile(`ceph_cluster_available_bytes 4`),
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regexp.MustCompile(`ceph_cluster_objects 1`),
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} {
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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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