fix unit tests

Author: neolynx

deb/local.go

@@ -48,6 +48,9 @@ func (repo *LocalRepo) String() string {
 
 // NumPackages return number of packages in local repo
 func (repo *LocalRepo) NumPackages() int {
+	if repo.packageRefs == nil {
+		return 0
+	}
 	return repo.packageRefs.Len()
 }
 

deb/remote.go

@@ -164,6 +164,9 @@ func (repo *RemoteRepo) IsFlat() bool {
 
 // NumPackages return number of packages retrieved from remote repo
 func (repo *RemoteRepo) NumPackages() int {
+	if repo.packageRefs == nil {
+		return 0
+	}
 	return repo.packageRefs.Len()
 }
 

deb/snapshot.go

@@ -45,7 +45,7 @@ type Snapshot struct {
 
 // NewSnapshotFromRepository creates snapshot from current state of repository
 func NewSnapshotFromRepository(name string, repo *RemoteRepo) (*Snapshot, error) {
-	if repo.packageRefs.Len() == 0 {
+	if repo.packageRefs == nil || repo.packageRefs.Len() == 0 {
 		return nil, errors.New("mirror not updated")
 	}
 

utils/utils.go

@@ -10,13 +10,13 @@ import (
 
 // DirIsAccessible verifies that directory exists and is accessible
 func DirIsAccessible(filename string) error {
-	_, err := os.Stat(filename)
+	fileStat, err := os.Stat(filename)
 	if err != nil {
 		if !os.IsNotExist(err) {
 			return fmt.Errorf("error checking directory '%s': %s", filename, err)
 		}
 	} else {
-		if unix.Access(filename, unix.W_OK) != nil {
+		if fileStat.Mode().Perm() == 0000 || unix.Access(filename, unix.W_OK) != nil {
 			return fmt.Errorf("'%s' is inaccessible, check access rights", filename)
 		}
 	}

utils/utils_test.go

@@ -32,5 +32,9 @@ func (s *UtilsSuite) TestDirIsAccessibleNotExist(c *C) {
 }
 
 func (s *UtilsSuite) TestDirIsAccessibleNotAccessible(c *C) {
-	c.Check(DirIsAccessible(s.tempfile.Name()).Error(), Equals, fmt.Errorf("'%s' is inaccessible, check access rights", s.tempfile.Name()).Error())
+	accessible := DirIsAccessible(s.tempfile.Name())
+	if accessible == nil {
+            c.Fatalf("Test dir should not be accessible: %s", s.tempfile.Name())
+        }
+	c.Check(accessible.Error(), Equals, fmt.Errorf("'%s' is inaccessible, check access rights", s.tempfile.Name()).Error())
 }