Speed up indentation tests on Vim

Author: axvr

dev/do/test-indent

@@ -9,6 +9,12 @@ if [ "$EDITOR" != 'vim' ] && [ "$EDITOR" != 'nvim' ]; then
     exit 1
 fi
 
+if [ "$EDITOR" = 'vim' ]; then
+    editor_opts=('--not-a-term')
+else
+    editor_opts=()
+fi
+
 PASSED=()
 FAILED=()
 SKIPPED=()
@@ -51,7 +57,7 @@ run_test_case() {
             test_cmd=('+normal! gg=G')
         fi
 
-        "$EDITOR" --clean -NXnu test-vimrc.vim "${test_cmd[@]}" '+xall!' -- "$actual_file"
+        "$EDITOR" "${editor_opts[@]}" --clean -NXnu test-vimrc.vim "${test_cmd[@]}" '+xall!' -- "$actual_file"
 
         diff --color=always -u "$expected_file" "$actual_file"