76 lines
2.0 KiB
Go
76 lines
2.0 KiB
Go
// Copyright 2015 Google Inc. All Rights Reserved.
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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 collector
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import (
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"testing"
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"time"
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"github.com/google/cadvisor/info/v1"
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"github.com/stretchr/testify/assert"
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)
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type fakeCollector struct {
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nextCollectionTime time.Time
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err error
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collectedFrom int
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}
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func (fc *fakeCollector) Collect(metric map[string][]v1.MetricVal) (time.Time, map[string][]v1.MetricVal, error) {
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fc.collectedFrom++
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return fc.nextCollectionTime, metric, fc.err
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}
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func (fc *fakeCollector) Name() string {
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return "fake-collector"
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}
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func (fc *fakeCollector) GetSpec() []v1.MetricSpec {
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return []v1.MetricSpec{}
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}
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func TestCollect(t *testing.T) {
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cm := &GenericCollectorManager{}
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firstTime := time.Now().Add(-time.Hour)
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secondTime := time.Now().Add(time.Hour)
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f1 := &fakeCollector{
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nextCollectionTime: firstTime,
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}
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f2 := &fakeCollector{
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nextCollectionTime: secondTime,
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}
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assert := assert.New(t)
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assert.NoError(cm.RegisterCollector(f1))
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assert.NoError(cm.RegisterCollector(f2))
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// First collection, everyone gets collected from.
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nextTime, _, err := cm.Collect()
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assert.Equal(firstTime, nextTime)
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assert.NoError(err)
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assert.Equal(1, f1.collectedFrom)
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assert.Equal(1, f2.collectedFrom)
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f1.nextCollectionTime = time.Now().Add(2 * time.Hour)
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// Second collection, only the one that is ready gets collected from.
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nextTime, _, err = cm.Collect()
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assert.Equal(secondTime, nextTime)
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assert.NoError(err)
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assert.Equal(2, f1.collectedFrom)
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assert.Equal(1, f2.collectedFrom)
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}
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