Add the r2md-fence binary

To feed individual files without the extra boilerplate.

1 files changed, 20 insertions, 0 deletions

diff --git a/src/fence_wrapper.rs b/src/fence_wrapper.rs
index a218088..fc8f1c2 100644
--- a/src/fence_wrapper.rs
+++ b/src/fence_wrapper.rs
@@ -66,4 +66,24 @@ mod tests {
 
         assert_eq!(String::from_utf8(output).unwrap(), "```text\n\n```\n");
     }
+
+    #[test]
+    fn supports_empty_language() {
+        let input = Cursor::new("hello\n");
+        let mut output = Vec::new();
+
+        wrap_in_fence(input, &mut output, "").unwrap();
+
+        assert_eq!(String::from_utf8(output).unwrap(), "```\nhello\n\n```\n");
+    }
+
+    #[test]
+    fn wraps_empty_input_with_empty_language() {
+        let input = Cursor::new("");
+        let mut output = Vec::new();
+
+        wrap_in_fence(input, &mut output, "").unwrap();
+
+        assert_eq!(String::from_utf8(output).unwrap(), "```\n\n```\n");
+    }
 }