github.com/matrixorigin/matrixone@v1.2.0/pkg/util/metric/m_process_test.go (about)

     1  // Copyright 2022 Matrix Origin
     2  //
     3  // Licensed under the Apache License, Version 2.0 (the "License");
     4  // you may not use this file except in compliance with the License.
     5  // You may obtain a copy of the License at
     6  //
     7  // http://www.apache.org/licenses/LICENSE-2.0
     8  //
     9  // Unless required by applicable law or agreed to in writing, software
    10  // distributed under the License is distributed on an "AS IS" BASIS,
    11  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    12  // See the License for the specific language governing permissions and
    13  // limitations under the License.
    14  
    15  package metric
    16  
    17  import (
    18  	"runtime"
    19  	"testing"
    20  
    21  	"github.com/prashantv/gostub"
    22  	prom "github.com/prometheus/client_golang/prometheus"
    23  	. "github.com/smartystreets/goconvey/convey"
    24  )
    25  
    26  func TestProcessCollectorNormal(t *testing.T) {
    27  	Convey("collect proc cpu and mem succ", t, func() {
    28  		reg := prom.NewRegistry()
    29  		reg.MustRegister(newBatchStatsCollector(procCpuPercent{}, procMemUsage{}, procCpuTotal{}))
    30  
    31  		mf, err := reg.Gather()
    32  		So(err, ShouldBeNil)
    33  		So(len(mf), ShouldEqual, 3)
    34  	})
    35  }
    36  
    37  func TestProcessCollectorFD(t *testing.T) {
    38  	Convey("collect fd usage succ", t, func() {
    39  		reg := prom.NewRegistry()
    40  		reg.MustRegister(newBatchStatsCollector(procOpenFds{}, procFdsLimit{}))
    41  
    42  		mf, err := reg.Gather()
    43  		So(err, ShouldBeNil)
    44  		if runtime.GOOS == "linux" { // MacOS not implemented yet
    45  			So(len(mf), ShouldEqual, 2)
    46  		}
    47  	})
    48  }
    49  
    50  func TestProcessError(t *testing.T) {
    51  	stubs := gostub.StubFunc(&getProcess, nil)
    52  	defer stubs.Reset()
    53  	Convey("collect error", t, func() {
    54  		reg := prom.NewRegistry()
    55  		reg.MustRegister(newBatchStatsCollector(procCpuPercent{}, procMemUsage{}, procOpenFds{}, procFdsLimit{}, procCpuTotal{}))
    56  
    57  		mf, err := reg.Gather()
    58  		So(err, ShouldBeNil)
    59  		So(len(mf), ShouldEqual, 0)
    60  	})
    61  }