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metric_test.go
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metric_test.go
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// Copyright 2015 trivago GmbH
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package tgo
import (
"github.com/trivago/tgo/ttesting"
"sync"
"testing"
)
func getMockMetric() metrics {
return metrics{
new(sync.Mutex),
make(map[string]*int64),
}
}
func TestMetricsSet(t *testing.T) {
expect := ttesting.NewExpect(t)
mockMetric := getMockMetric()
// test for initialization to zero
mockMetric.New("MockMetric")
count, err := mockMetric.Get("MockMetric")
expect.Nil(err)
expect.Equal(int64(0), count)
// test for setting to a particular value
mockMetric.Set("MockMetric", int64(5))
count, err = mockMetric.Get("MockMetric")
expect.Nil(err)
expect.Equal(int64(5), count)
// test for setting to a particular int
mockMetric.SetI("MockMetric", 5)
count, err = mockMetric.Get("MockMetric")
expect.Nil(err)
expect.Equal(int64(5), count)
// test for setting to a particular float
mockMetric.SetF("MockMetric", 4.3)
count, err = mockMetric.Get("MockMetric")
expect.Nil(err)
expect.Equal(int64(4), count)
}
func TestMetricsAddSub(t *testing.T) {
expect := ttesting.NewExpect(t)
mockMetric := getMockMetric()
mockMetric.New("MockMetric")
mockMetric.Add("MockMetric", int64(1))
count, err := mockMetric.Get("MockMetric")
expect.Nil(err)
expect.Equal(int64(1), count)
mockMetric.AddI("MockMetric", 1)
count, err = mockMetric.Get("MockMetric")
expect.Nil(err)
expect.Equal(int64(2), count)
mockMetric.AddF("MockMetric", 2.4)
count, err = mockMetric.Get("MockMetric")
expect.Nil(err)
expect.Equal(int64(4), count)
mockMetric.Sub("MockMetric", int64(1))
count, err = mockMetric.Get("MockMetric")
expect.Nil(err)
expect.Equal(int64(3), count)
mockMetric.SubF("MockMetric", 1.6)
count, err = mockMetric.Get("MockMetric")
expect.Nil(err)
expect.Equal(int64(1), count)
mockMetric.SubI("MockMetric", 1)
count, err = mockMetric.Get("MockMetric")
expect.Nil(err)
expect.Equal(int64(0), count)
}
func TestMetricsIncDec(t *testing.T) {
expect := ttesting.NewExpect(t)
mockMetric := getMockMetric()
mockMetric.New("MockMetric")
mockMetric.Inc("MockMetric")
count, err := mockMetric.Get("MockMetric")
expect.Nil(err)
expect.Equal(int64(1), count)
mockMetric.Dec("MockMetric")
count, err = mockMetric.Get("MockMetric")
expect.Nil(err)
expect.Equal(int64(0), count)
}