feat(fs): add TempFileSystem::as_real()

src/fs/temp.rs

@@ -21,6 +21,11 @@ impl TempFileSystem {
             _temp_dir: temp_dir,
         })
     }
+
+    /// Create a clone of the wrapped [FileSystem].
+    pub fn as_real(&self) -> FileSystem {
+        self.real.clone()
+    }
 }
 impl std::ops::Deref for TempFileSystem {
     type Target = FileSystem;

tests/fs.rs

@@ -9,6 +9,13 @@ mod path {
 
     use super::*;
 
+    #[test]
+    fn temp_as_real() {
+        let fs = fs::temp().expect("temp fs");
+        let read = fs.as_real();
+
+        assert_eq!(read.base(), fs.base());
+    }
     mod is_link {
         use super::*;