initial commit for fern's readline impl

src/tests/highlight.rs

@@ -1,27 +1 @@
 
-use insta::assert_snapshot;
-
-use crate::prompt::highlight::FernHighlighter;
-
-use super::super::*;
-
-#[test]
-fn highlight_simple() {
-	let line = "echo foo bar";
-	let styled = FernHighlighter::new(line.to_string()).hl_input();
-	assert_snapshot!(styled)
-}
-
-#[test]
-fn highlight_cmd_sub() {
-	let line = "echo foo $(echo bar)";
-	let styled = FernHighlighter::new(line.to_string()).hl_input();
-	assert_snapshot!(styled)
-}
-
-#[test]
-fn highlight_cmd_sub_in_dquotes() {
-	let line = "echo \"foo $(echo bar) biz\"";
-	let styled = FernHighlighter::new(line.to_string()).hl_input();
-	assert_snapshot!(styled)
-}