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package util_test
import (
"errors"
"fmt"
"os"
"path/filepath"
"reflect"
"testing"
"github.com/go-git/go-billy/v5"
"github.com/go-git/go-billy/v5/memfs"
"github.com/go-git/go-billy/v5/util"
. "gopkg.in/check.v1"
)
type WalkSuite struct{}
func TestWalk(t *testing.T) { TestingT(t) }
var _ = Suite(&WalkSuite{})
var targetSubfolder = filepath.FromSlash("path/to/some/subfolder")
func (s *WalkSuite) TestWalkCanSkipTopDirectory(c *C) {
filesystem := memfs.New()
c.Assert(util.Walk(filesystem, "/root/that/does/not/exist", func(path string, info os.FileInfo, err error) error { return filepath.SkipDir }), IsNil)
}
func (s *WalkSuite) TestWalkReturnsAnErrorWhenRootDoesNotExist(c *C) {
filesystem := memfs.New()
c.Assert(util.Walk(filesystem, "/root/that/does/not/exist", func(path string, info os.FileInfo, err error) error { return err }), NotNil)
}
func (s *WalkSuite) TestWalkOnPlainFile(c *C) {
filesystem := memfs.New()
createFile(c, filesystem, "./README.md")
discoveredPaths := []string{}
c.Assert(util.Walk(filesystem, "./README.md", func(path string, info os.FileInfo, err error) error {
discoveredPaths = append(discoveredPaths, path)
return nil
}), IsNil)
c.Assert(discoveredPaths, DeepEquals, []string{"./README.md"})
}
func (s *WalkSuite) TestWalkOnExistingFolder(c *C) {
filesystem := memfs.New()
createFile(c, filesystem, "path/to/some/subfolder/that/contain/file")
createFile(c, filesystem, "path/to/some/file")
discoveredPaths := []string{}
c.Assert(util.Walk(filesystem, "path", func(path string, info os.FileInfo, err error) error {
discoveredPaths = append(discoveredPaths, path)
return nil
}), IsNil)
c.Assert(discoveredPaths, Contains, "path")
c.Assert(discoveredPaths, Contains, filepath.FromSlash("path/to"))
c.Assert(discoveredPaths, Contains, filepath.FromSlash("path/to/some"))
c.Assert(discoveredPaths, Contains, filepath.FromSlash("path/to/some/file"))
c.Assert(discoveredPaths, Contains, filepath.FromSlash("path/to/some/subfolder"))
c.Assert(discoveredPaths, Contains, filepath.FromSlash("path/to/some/subfolder/that"))
c.Assert(discoveredPaths, Contains, filepath.FromSlash("path/to/some/subfolder/that/contain"))
c.Assert(discoveredPaths, Contains, filepath.FromSlash("path/to/some/subfolder/that/contain/file"))
}
func (s *WalkSuite) TestWalkCanSkipFolder(c *C) {
filesystem := memfs.New()
createFile(c, filesystem, "path/to/some/subfolder/that/contain/file")
createFile(c, filesystem, "path/to/some/file")
discoveredPaths := []string{}
c.Assert(util.Walk(filesystem, "path", func(path string, info os.FileInfo, err error) error {
discoveredPaths = append(discoveredPaths, path)
if path == targetSubfolder {
return filepath.SkipDir
}
return nil
}), IsNil)
c.Assert(discoveredPaths, Contains, "path")
c.Assert(discoveredPaths, Contains, filepath.FromSlash("path/to"))
c.Assert(discoveredPaths, Contains, filepath.FromSlash("path/to/some"))
c.Assert(discoveredPaths, Contains, filepath.FromSlash("path/to/some/file"))
c.Assert(discoveredPaths, Contains, filepath.FromSlash("path/to/some/subfolder"))
c.Assert(discoveredPaths, NotContain, filepath.FromSlash("path/to/some/subfolder/that"))
c.Assert(discoveredPaths, NotContain, filepath.FromSlash("path/to/some/subfolder/that/contain"))
c.Assert(discoveredPaths, NotContain, filepath.FromSlash("path/to/some/subfolder/that/contain/file"))
}
func (s *WalkSuite) TestWalkStopsOnError(c *C) {
filesystem := memfs.New()
createFile(c, filesystem, "path/to/some/subfolder/that/contain/file")
createFile(c, filesystem, "path/to/some/file")
discoveredPaths := []string{}
c.Assert(util.Walk(filesystem, "path", func(path string, info os.FileInfo, err error) error {
discoveredPaths = append(discoveredPaths, path)
if path == targetSubfolder {
return errors.New("uncaught error")
}
return nil
}), NotNil)
c.Assert(discoveredPaths, Contains, "path")
c.Assert(discoveredPaths, Contains, filepath.FromSlash("path/to"))
c.Assert(discoveredPaths, Contains, filepath.FromSlash("path/to/some"))
c.Assert(discoveredPaths, Contains, filepath.FromSlash("path/to/some/file"))
c.Assert(discoveredPaths, Contains, filepath.FromSlash("path/to/some/subfolder"))
c.Assert(discoveredPaths, NotContain, filepath.FromSlash("path/to/some/subfolder/that"))
c.Assert(discoveredPaths, NotContain, filepath.FromSlash("path/to/some/subfolder/that/contain"))
c.Assert(discoveredPaths, NotContain, filepath.FromSlash("path/to/some/subfolder/that/contain/file"))
}
func (s *WalkSuite) TestWalkForwardsStatErrors(c *C) {
memFilesystem := memfs.New()
filesystem := &fnFs{
Filesystem: memFilesystem,
lstat: func(path string) (os.FileInfo, error) {
if path == targetSubfolder {
return nil, errors.New("uncaught error")
}
return memFilesystem.Lstat(path)
},
}
createFile(c, filesystem, "path/to/some/subfolder/that/contain/file")
createFile(c, filesystem, "path/to/some/file")
discoveredPaths := []string{}
c.Assert(util.Walk(filesystem, "path", func(path string, info os.FileInfo, err error) error {
discoveredPaths = append(discoveredPaths, path)
if path == targetSubfolder {
c.Assert(err, NotNil)
}
return err
}), NotNil)
c.Assert(discoveredPaths, Contains, "path")
c.Assert(discoveredPaths, Contains, filepath.FromSlash("path/to"))
c.Assert(discoveredPaths, Contains, filepath.FromSlash("path/to/some"))
c.Assert(discoveredPaths, Contains, filepath.FromSlash("path/to/some/file"))
c.Assert(discoveredPaths, Contains, filepath.FromSlash("path/to/some/subfolder"))
c.Assert(discoveredPaths, NotContain, filepath.FromSlash("path/to/some/subfolder/that"))
c.Assert(discoveredPaths, NotContain, filepath.FromSlash("path/to/some/subfolder/that/contain"))
c.Assert(discoveredPaths, NotContain, filepath.FromSlash("path/to/some/subfolder/that/contain/file"))
}
func createFile(c *C, filesystem billy.Filesystem, path string) {
fd, err := filesystem.Create(path)
c.Assert(err, IsNil)
if err != nil {
fd.Close()
}
}
type fnFs struct {
billy.Filesystem
lstat func(path string) (os.FileInfo, error)
}
func (f *fnFs) Lstat(path string) (os.FileInfo, error) {
if f.lstat != nil {
return f.lstat(path)
}
return nil, errors.New("not implemented")
}
type containsChecker struct {
*CheckerInfo
}
func (checker *containsChecker) Check(params []interface{}, names []string) (result bool, err string) {
defer func() {
if v := recover(); v != nil {
result = false
err = fmt.Sprint(v)
}
}()
value := reflect.ValueOf(params[0])
result = false
err = fmt.Sprintf("%v does not contain %v", params[0], params[1])
switch value.Kind() {
case reflect.Array, reflect.Slice:
for i := 0; i < value.Len(); i++ {
r := reflect.DeepEqual(value.Index(i).Interface(), params[1])
if r {
result = true
err = ""
}
}
default:
return false, "obtained value type is not iterable"
}
return
}
var Contains Checker = &containsChecker{
&CheckerInfo{Name: "Contains", Params: []string{"obtained", "expected"}},
}
var NotContain Checker = Not(Contains)
|
