added another test for the parser

src/parse/mod.rs

@@ -615,6 +615,7 @@ impl ParseStream {
 
 			if self.check_keyword("esac") {
 				node_tks.push(self.next_tk().unwrap());
+				self.assert_separator(&mut node_tks)?;
 				break
 			}
 
@@ -623,6 +624,7 @@ impl ParseStream {
 			}
 		}
 
+
 		let node = Node {
 			class: NdRule::CaseNode { pattern, case_blocks },
 			flags: NdFlags::empty(),