github.com/matrixorigin/matrixone@v1.2.0/pkg/util/file/file_test.go (about)

     1  // Copyright 2021 - 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 file
    16  
    17  import (
    18  	"testing"
    19  
    20  	"github.com/matrixorigin/matrixone/pkg/fileservice"
    21  	"github.com/stretchr/testify/assert"
    22  )
    23  
    24  var (
    25  	testPath = "testdir"
    26  	testFile = "file.data"
    27  )
    28  
    29  func TestReadAndWriteFile(t *testing.T) {
    30  	fs, err := fileservice.NewMemoryFS(testPath, fileservice.DisabledCacheConfig, nil)
    31  	assert.NoError(t, err)
    32  
    33  	v, err := ReadFile(fs, testFile)
    34  	assert.NoError(t, err)
    35  	assert.Empty(t, v)
    36  
    37  	assert.NoError(t, WriteFile(fs, testFile, []byte("hello")))
    38  	v, err = ReadFile(fs, testFile)
    39  	assert.NoError(t, err)
    40  	assert.Equal(t, string("hello"), string(v))
    41  
    42  	assert.NoError(t, WriteFile(fs, testFile, []byte("world")))
    43  	v, err = ReadFile(fs, testFile)
    44  	assert.NoError(t, err)
    45  	assert.Equal(t, string("world"), string(v))
    46  }