/bats/arg-parsing.bats: Add skipped test for checkout panic

bats/arg-parsing.bats

@@ -45,3 +45,13 @@ teardown() {
     skip "Can't chain modal arguments"
     dolt table import -fc test `batshelper 1pk5col-ints.csv`
 }
+
+@test "dolt does not panic and returns error when empty string used with checkout" {
+    run dolt checkout ""
+    skip "Panics when attempting to checkout empty string" [[ "$output" =~ "error: cannot checkout empty string" ]] || false
+    [ $status -eq 2 ]
+
+    run dolt checkout -b ""
+    [[ "$output" =~ "error: cannot checkout empty string" ]] || false
+    [ $status -eq 2 ]
+}