/
fs_test.go
289 lines (252 loc) · 8.27 KB
/
fs_test.go
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package filesystem
import (
trie "github.com/tchap/go-patricia/patricia"
. "gopkg.in/check.v1"
"io/ioutil"
"os"
"path/filepath"
"testing"
)
func Test(t *testing.T) { TestingT(t) }
type TheSuite struct {
tmpdir string
}
var _ = Suite(&TheSuite{})
// Create a temporary directory for every test to use
func (suite *TheSuite) SetUpTest(c *C) {
suite.tmpdir = c.MkDir()
}
// helpers
func (suite *TheSuite) mkPTFS() *PassThroughFilesystem {
fs, _ := NewPassThroughFilesystem(suite.tmpdir, false)
return fs
}
func (suite *TheSuite) mkTFS() *TransientFilesystem {
fs, _ := NewTransientFilesystem(suite.tmpdir, false)
return fs
}
func (suite *TheSuite) mkDirs(c *C, dir string) map[string]string {
fileMap := make(map[string]string)
f1, err := ioutil.TempFile(suite.tmpdir, "f1")
if err != nil {
c.Error(err)
}
fileMap["f1"] = f1.Name()
d1 := filepath.Join(suite.tmpdir, "d1")
fileMap["d1"] = d1
os.MkdirAll(d1, 0755)
f2, err := ioutil.TempFile(d1, "f2")
if err != nil {
c.Error(err)
}
fileMap["f2"] = f2.Name()
f3, err := ioutil.TempFile(d1, "f3")
if err != nil {
c.Error(err)
}
fileMap["f3"] = f3.Name()
return fileMap
}
// Log the whole trie
func (suite *TheSuite) TrieLog(c *C, fs *TransientFilesystem) {
fs.trie.VisitSubtree(trie.Prefix(""), func(prefix trie.Prefix, item trie.Item) error {
c.Logf("%q: %v\n", prefix, item)
return nil
})
}
// tests
func (suite *TheSuite) TestPassThroughFilesystemerBadPath(c *C) {
_, err := NewPassThroughFilesystem("/thispathbetternotexist", false)
c.Assert(err, FitsTypeOf, &os.PathError{})
}
func (suite *TheSuite) TestPassThroughFilesystemerFileNotDir(c *C) {
f, err := ioutil.TempFile(suite.tmpdir, "blah")
if err != nil {
c.Fatalf("Failed to make temp file in dir %s", suite.tmpdir)
}
_, err = NewPassThroughFilesystem(f.Name(), false)
c.Assert(err, Equals, ErrFileExists)
}
func (suite *TheSuite) TestPassThroughFilesystemerCreate(c *C) {
fs := suite.mkPTFS()
c.Assert(fs.rootPath, Equals, suite.tmpdir)
newPath := filepath.Join(suite.tmpdir, "under")
fs, err := NewPassThroughFilesystem(newPath, false)
c.Assert(err, NotNil)
fs, err = NewPassThroughFilesystem(newPath, true)
c.Assert(err, IsNil)
c.Assert(fs.rootPath, Equals, newPath)
fs, err = NewPassThroughFilesystem("asdasdb", true)
c.Assert(err, Equals, ErrPathNotAbsolute)
}
func (suite *TheSuite) TestPassThroughFilesystemer_realPath(c *C) {
fs := suite.mkPTFS()
f, _ := ioutil.TempFile(fs.rootPath, "apples")
f.Close()
tmpfileName := filepath.Base(f.Name())
absPath := realPath(fs, tmpfileName)
c.Assert(absPath, Equals, filepath.Clean(filepath.Join(fs.rootPath, tmpfileName)))
}
func (suite *TheSuite) TestPassThroughFilesystemer_PathExists(c *C) {
fs := suite.mkPTFS()
f, _ := ioutil.TempFile(fs.rootPath, "apples")
f.Close()
tmpfileName := filepath.Base(f.Name())
c.Assert(fs.PathExists(tmpfileName), Equals, true)
c.Assert(fs.PathExists("applesssss"), Equals, false)
}
func (suite *TheSuite) TestPassThroughFilesystemer_MkPath(c *C) {
fs := suite.mkPTFS()
err := fs.MkPath("ab/cd")
c.Assert(err, IsNil)
c.Assert(fs.PathExists("ab/cd"), Equals, true)
fs = suite.mkPTFS()
err = fs.MkPath("/ab/cd")
c.Assert(fs.PathExists("/ab/cd"), Equals, true)
c.Assert(err, IsNil)
err = fs.MkPath("")
c.Assert(err, IsNil)
err = fs.MkFile("here", []byte{})
c.Assert(err, IsNil)
err = fs.MkPath("here")
c.Assert(err, Equals, ErrFileExists)
}
func (suite *TheSuite) TestPassThroughFilesystemer_RmPath(c *C) {
fs := suite.mkPTFS()
fs.MkPath("abc/123")
c.Assert(fs.PathExists("abc/123"), Equals, true)
err := fs.RmPath("abc/123")
c.Assert(err, IsNil)
err = fs.RmPath("abc/notexist")
c.Assert(err, Equals, ErrPathNoExist)
err = fs.RmPath("")
c.Assert(err, NotNil)
err = fs.RmPath("/")
c.Assert(err, NotNil)
}
func (suite *TheSuite) TestPassThroughFilesystemer_MkFile(c *C) {
fs := suite.mkPTFS()
err := fs.MkFile("this/path/here", []byte{})
c.Assert(err, Equals, ErrPathNoExist) //parent path does not exist
err = fs.MkFile("here", []byte{})
c.Assert(err, IsNil)
cwd, _ := os.Getwd()
fileBytes, _ := ioutil.ReadFile(filepath.Join(cwd, "thetestfile.txt"))
fs.MkPath("myDir")
err = fs.MkFile("myDir/theFile", fileBytes)
c.Assert(err, IsNil)
absPath := realPath(fs, "myDir/theFile")
newBytes, _ := ioutil.ReadFile(absPath)
c.Assert(fileBytes, DeepEquals, newBytes)
err = fs.MkFile("myDir/theFile", fileBytes)
c.Assert(err, Equals, ErrFileExists) //file already exists
}
func (suite *TheSuite) TestPassThroughFilesystemer_GetFile(c *C) {
fs := suite.mkPTFS()
_, err := fs.GetFile("dat/path") //file doesn't exist
c.Assert(err, Equals, ErrFileNoExist)
err = fs.MkPath("ab/cd")
_, err = fs.GetFile("ab/cd") //actually a dir
c.Assert(err, NotNil)
cwd, _ := os.Getwd()
fileBytes, _ := ioutil.ReadFile(filepath.Join(cwd, "thetestfile.txt"))
fs.MkPath("myDir")
fs.MkFile("myDir/theFile", fileBytes)
c.Log("MADE IT HERE")
newFile, err := fs.GetFile("myDir/theFile")
c.Assert(err, IsNil)
f, _ := newFile.File()
c.Assert(fileBytes, DeepEquals, f)
}
func (suite *TheSuite) TestTransientFilesystem_Create(c *C) {
_, err := NewTransientFilesystem("asdasda", false)
c.Assert(err, Equals, ErrPathNotAbsolute)
}
func (suite *TheSuite) TestTransientFilesystem_Sync(c *C) {
fs := suite.mkTFS()
fileMap := suite.mkDirs(c, suite.tmpdir)
if err := fs.Sync(); err != nil {
c.Error(err)
}
c.Assert(fs.trie.Get(trie.Prefix("aaaaaaaaaaa")), IsNil)
c.Assert(fs.trie.Get(trie.Prefix(fs.rootPath)), NotNil)
c.Assert(fs.trie.Get(trie.Prefix(fileMap["d1"])), NotNil)
c.Assert(fs.trie.Get(trie.Prefix(fileMap["f1"])), NotNil)
c.Assert(fs.trie.Get(trie.Prefix(fileMap["f2"])), NotNil)
c.Assert(fs.trie.Get(trie.Prefix(fileMap["f3"])), NotNil)
}
func (suite *TheSuite) TestTransientFilesystemerCreate(c *C) {
fileMap := suite.mkDirs(c, suite.tmpdir)
fs := suite.mkTFS()
c.Assert(fs.trie.Get(trie.Prefix("aaaaaaaaaaa")), IsNil)
c.Assert(fs.trie.Get(trie.Prefix(fs.rootPath)), NotNil)
c.Assert(fs.trie.Get(trie.Prefix(fileMap["d1"])), NotNil)
c.Assert(fs.trie.Get(trie.Prefix(fileMap["f1"])), NotNil)
c.Assert(fs.trie.Get(trie.Prefix(fileMap["f2"])), NotNil)
c.Assert(fs.trie.Get(trie.Prefix(fileMap["f3"])), NotNil)
}
func (suite *TheSuite) TestTransientFilesystemer_PathExists(c *C) {
suite.mkDirs(c, suite.tmpdir)
fs := suite.mkTFS()
c.Assert(fs.PathExists("d1"), Equals, true)
c.Assert(fs.PathExists("/blah"), Equals, false)
}
func (suite *TheSuite) TestTransientFilesystemer_MkPath(c *C) {
fileMap := suite.mkDirs(c, suite.tmpdir)
fs := suite.mkTFS()
err := fs.MkPath("")
c.Assert(err, IsNil)
suite.TrieLog(c, fs)
err = fs.MkPath(filepath.Base(fileMap["f1"]))
c.Assert(err, Equals, ErrFileExists)
err = fs.MkPath("d1")
c.Assert(err, IsNil)
err = fs.MkPath("d2")
c.Assert(err, IsNil)
}
func (suite *TheSuite) TestTransientFilesystemer_RmPath(c *C) {
fileMap := suite.mkDirs(c, suite.tmpdir)
fs := suite.mkTFS()
err := fs.RmPath(filepath.Base(fileMap["f1"]))
c.Assert(err, Equals, ErrFileExists)
err = fs.RmPath("d1")
c.Assert(err, IsNil)
_, err = os.Stat(fileMap["d1"])
c.Assert(os.IsNotExist(err), Equals, true)
}
func (suite *TheSuite) TestTransientFilesystemer_MkFile(c *C) {
fs := suite.mkTFS()
err := fs.MkFile("this/path/here", []byte{})
c.Assert(err, Equals, ErrPathNoExist) //parent path does not exist
err = fs.MkFile("here", []byte{})
c.Assert(err, IsNil)
cwd, _ := os.Getwd()
fileBytes, _ := ioutil.ReadFile(filepath.Join(cwd, "thetestfile.txt"))
err = fs.MkPath("myDir")
suite.TrieLog(c, fs)
c.Assert(err, IsNil)
err = fs.MkFile("myDir/theFile", fileBytes)
c.Assert(err, IsNil)
absPath := realPath(fs, "myDir/theFile")
newBytes, _ := ioutil.ReadFile(absPath)
c.Assert(fileBytes, DeepEquals, newBytes)
err = fs.MkFile("myDir/theFile", fileBytes)
c.Assert(err, Equals, ErrFileExists) //file already exists
}
func (suite *TheSuite) TestTransientFilesystemer_GetFile(c *C) {
fs := suite.mkTFS()
_, err := fs.GetFile("dat/path") //file doesn't exist
c.Assert(err, Equals, ErrFileNoExist)
err = fs.MkPath("ab/cd")
_, err = fs.GetFile("ab/cd") //actually a dir
c.Assert(err, NotNil)
cwd, _ := os.Getwd()
fileBytes, _ := ioutil.ReadFile(filepath.Join(cwd, "thetestfile.txt"))
fs.MkPath("myDir")
fs.MkFile("myDir/theFile", fileBytes)
c.Log("MADE IT HERE")
newFile, err := fs.GetFile("myDir/theFile")
c.Assert(err, IsNil)
f, _ := newFile.File()
c.Assert(fileBytes, DeepEquals, f)
}