Added more test names and TODOs.

fuseops/ops.go

@@ -359,7 +359,8 @@ func (o *CreateSymlinkOp) toBazilfuseResponse() (bfResp interface{}) {
 ////////////////////////////////////////////////////////////////////////
 
 // TODO(jacobsa): Comments for struct and fields, in particular covering
-// renames across mount points.
+// renames across mount points. Mention that you'll still get a forget, like
+// RmDirOp.
 type RenameOp struct {
 	commonOp
 

samples/memfs/memfs_test.go

@@ -1391,3 +1391,11 @@ func (t *MemFSTest) RenameIntoFileSystem_File() {
 func (t *MemFSTest) RenameIntoFileSystem_Directory() {
 	AssertTrue(false, "TODO")
 }
+
+func (t *MemFSTest) RenameOverExistingFile() {
+	AssertTrue(false, "TODO")
+}
+
+func (t *MemFSTest) RenameOverExistingDirectory() {
+	AssertTrue(false, "TODO")
+}