kops/util/pkg/vfs/fs_test.go

98 lines
2.3 KiB
Go

/*
Copyright 2020 The Kubernetes Authors.
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 vfs
import (
"bytes"
"os"
"path"
"testing"
)
func TestCreateFile(t *testing.T) {
TempDir := t.TempDir()
tests := []struct {
path string
data []byte
}{
{
path: path.Join(TempDir, "SubDir", "test1.tmp"),
data: []byte("test data\nline 1\r\nline 2"),
},
}
for _, test := range tests {
fspath := &FSPath{test.path}
// Create file
err := fspath.CreateFile(bytes.NewReader(test.data), nil)
if err != nil {
t.Fatalf("Error writing file %s, error: %v", test.path, err)
}
// Create file again should result in error
err = fspath.CreateFile(bytes.NewReader([]byte("data")), nil)
if err != os.ErrExist {
t.Errorf("Expected to get os.ErrExist, got: %v", err)
}
// Check file content
data, err := fspath.ReadFile()
if err != nil {
t.Errorf("Error reading file %s, error: %v", test.path, err)
}
if !bytes.Equal(data, test.data) {
t.Errorf("Expected file content %v, got %v", test.data, data)
}
}
}
func TestWriteTo(t *testing.T) {
TempDir := t.TempDir()
tests := []struct {
path string
data []byte
}{
{
path: path.Join(TempDir, "SubDir", "test1.tmp"),
data: []byte("test data\nline 1\r\nline 2"),
},
}
for _, test := range tests {
var buf bytes.Buffer
fspath := NewFSPath(test.path)
// Create file
err := fspath.CreateFile(bytes.NewReader(test.data), nil)
if err != nil {
t.Fatalf("Error writing file %s, error: %v", test.path, err)
}
// Write file to buf
_, err = fspath.WriteTo(&buf)
if err != nil {
t.Fatalf("Error reading %s to buf, error: %v", test.path, err)
}
// Check buf content
actually_bytes := buf.Bytes()
if !bytes.Equal(test.data, actually_bytes) {
t.Errorf("Expected %v, actually %v", test.data, actually_bytes)
}
}
}