more unit tests, better highlighting

src/tests/highlight.rs

@@ -0,0 +1,27 @@
+
+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)
+}

src/tests/mod.rs

@@ -24,6 +24,8 @@ pub mod expand;
 pub mod term;
 pub mod error;
 pub mod getopt;
+pub mod script;
+pub mod highlight;
 
 /// Unsafe to use outside of tests
 pub fn get_nodes<F1>(input: &str, filter: F1) -> Vec<Node>

src/tests/script.rs

@@ -0,0 +1,52 @@
+use std::process::{self, Output};
+
+use pretty_assertions::assert_eq;
+
+use super::super::*;
+fn get_script_output(name: &str, args: &[&str]) -> Output {
+	// Resolve the path to the fern binary.
+	// Do not question me.
+	let mut fern_path = env::current_exe()
+		.expect("Failed to get test executable"); // The path to the test executable
+	fern_path.pop(); // Hocus pocus
+	fern_path.pop(); 
+	fern_path.push("fern"); // Abra Kadabra
+
+	if !fern_path.is_file() {
+		fern_path.pop(); 
+		fern_path.pop(); 
+		fern_path.push("release"); 
+		fern_path.push("fern");
+	}
+
+	if !fern_path.is_file() {
+		panic!("where the hell is the binary")
+	}
+
+	process::Command::new(fern_path) // Alakazam
+		.arg(name)
+		.args(args)
+		.output()
+		.expect("Failed to run script")
+}
+#[test]
+fn script_hello_world() {
+	let output = get_script_output("./test_scripts/hello.sh", &[]);
+	assert!(output.status.success());
+	let stdout = String::from_utf8_lossy(&output.stdout);
+	assert_eq!(stdout.trim(), "Hello, World!")
+}
+#[test]
+fn script_cmdsub() {
+	let output = get_script_output("./test_scripts/cmdsub.sh", &[]);
+	assert!(output.status.success());
+	let stdout = String::from_utf8_lossy(&output.stdout);
+	assert_eq!(stdout.trim(), "foo Hello bar")
+}
+#[test]
+fn script_multiline() {
+	let output = get_script_output("./test_scripts/multiline.sh", &[]);
+	assert!(output.status.success());
+	let stdout = String::from_utf8_lossy(&output.stdout);
+	assert_eq!(stdout.trim(), "foo\nbar\nbiz\nbuzz")
+}

src/tests/snapshots/fern__tests__error__unclosed_subsh.snap

@@ -3,8 +3,8 @@ source: src/tests/error.rs
 expression: err_fmt
 ---
 Parse Error - Unclosed subshell
-  -> [1;1]
+  -> [1;2]
   |
 1 | (foo
-  | ^
+  |  ^
   |