github.com/matrixorigin/matrixone@v1.2.0/pkg/perfcounter/iter_test.go (about)

     1  // Copyright 2023 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 perfcounter
    16  
    17  import (
    18  	"testing"
    19  
    20  	"github.com/matrixorigin/matrixone/pkg/util/metric/stats"
    21  	"github.com/stretchr/testify/assert"
    22  )
    23  
    24  func TestIterFields(t *testing.T) {
    25  	var c CounterSet
    26  	n := 0
    27  	c.IterFields(func(path []string, c *stats.Counter) error {
    28  		n++
    29  		c.Load()
    30  		_ = path
    31  		return nil
    32  	})
    33  	assert.True(t, n > 0)
    34  }