github.com/matrixorigin/matrixone@v1.2.0/pkg/vm/engine/tae/common/refs_test.go (about)

     1  // Copyright 2021 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 common
    16  
    17  import (
    18  	"testing"
    19  
    20  	"github.com/matrixorigin/matrixone/pkg/vm/engine/tae/testutils"
    21  	"github.com/stretchr/testify/assert"
    22  )
    23  
    24  func TestRefs(t *testing.T) {
    25  	defer testutils.AfterTest(t)()
    26  	helper := RefHelper{
    27  		OnZeroCB: func() {
    28  
    29  		},
    30  	}
    31  	assert.Equal(t, helper.RefCount(), int64(0))
    32  	helper.Ref()
    33  	assert.Equal(t, helper.RefCount(), int64(1))
    34  	helper.Ref()
    35  	helper.Unref()
    36  	assert.Equal(t, helper.RefCount(), int64(1))
    37  	helper.Unref()
    38  	assert.Equal(t, helper.RefCount(), int64(0))
    39  	assert.Panics(t, helper.Unref)
    40  }