utils/fs: move 'os' and 'test' to separate packages. (#93)

* create utils/fs/test package to expose generic test suite to 3rd party fs implementations.
* move 'os' to its own package to avoid cyclic dependency (test -> fs -> test, becomes test -> fs, os -> test, os -> fs).
* remove TestCreateAndWrite: some of our implementations cannot read a file that was just created, written and not closed yet.

1 files changed, 29 insertions, 0 deletions

diff --git a/utils/fs/os/os_test.go b/utils/fs/os/os_test.go
new file mode 100644
index 0000000..02a0a6c
--- /dev/null
+++ b/utils/fs/os/os_test.go
@@ -0,0 +1,29 @@
+package os_test
+
+import (
+	"io/ioutil"
+	stdos "os"
+	"testing"
+
+	. "gopkg.in/check.v1"
+	"gopkg.in/src-d/go-git.v4/utils/fs/os"
+	"gopkg.in/src-d/go-git.v4/utils/fs/test"
+)
+
+func Test(t *testing.T) { TestingT(t) }
+
+type OSSuite struct {
+	test.FilesystemSuite
+	path string
+}
+
+var _ = Suite(&OSSuite{})
+
+func (s *OSSuite) SetUpTest(c *C) {
+	s.path, _ = ioutil.TempDir(stdos.TempDir(), "go-git-os-fs-test")
+	s.FilesystemSuite.Fs = os.NewOS(s.path)
+}
+func (s *OSSuite) TearDownTest(c *C) {
+	err := stdos.RemoveAll(s.path)
+	c.Assert(err, IsNil)
+}