Assert baseline length matches result's length

Author: cruessler

gix-blame/tests/blame.rs

@@ -958,6 +958,7 @@ macro_rules! mktest {
             let git_dir = fixture_path().join(".git");
             let baseline = Baseline::collect(git_dir.join(format!("{}.baseline", $case))).unwrap();
 
+            assert_eq!(baseline.len(), $number_of_lines);
             assert_eq!(lines_blamed, baseline);
         }
     };