Fix(test): No more manual test setup

- Test setup now done automatically via `cargo test`. Testing fixtures
are automatically injected before tests.

tests/cli.rs

@@ -1,9 +1,43 @@
 use assert_cmd::Command;
 use predicates::prelude::*;
+use rstest::{fixture, rstest};
 use std::fs;
 
 type TestResult = Result<(), Box<dyn std::error::Error>>;
 
+#[fixture]
+#[once]
+pub fn pre_test() -> bool {
+    let script_path = "./test_script.sh";
+
+    // Ensure the script file has the necessary permissions to be executed
+    let mut permissions_cmd = Command::new("chmod");
+    permissions_cmd.arg("+x").arg(script_path);
+    permissions_cmd
+        .output()
+        .expect("Cannot make test_script.sh executable");
+
+    // Run the bash script using the `Command` struct
+    let output = Command::new("bash")
+        .arg(script_path)
+        .output()
+        .expect("Running bash script failed!");
+
+    if output.status.success() {
+        // The script ran successfully
+        let stdout = String::from_utf8_lossy(&output.stdout);
+        println!("Script Output:\n{}", stdout);
+
+        true
+    } else {
+        // The script encountered an error
+        let stderr = String::from_utf8_lossy(&output.stderr);
+        println!("Script Error:\n{}", stderr);
+
+        false
+    }
+}
+
 #[test]
 fn dies_no_args() -> TestResult {
     let mut cmd = Command::cargo_bin("echor")?;
@@ -25,19 +59,26 @@ fn run(args: &[&str], expected_file: &str) -> TestResult {
     Ok(())
 }
 
-#[test]
-fn hello1() -> TestResult {
+#[rstest]
+fn hello1(pre_test: &bool) -> TestResult {
+    assert_eq!(pre_test, &true);
     run(&["Hello there"], "tests/expected/hello1.txt")
 }
-#[test]
-fn hello2() -> TestResult {
+
+#[rstest]
+fn hello2(pre_test: &bool) -> TestResult {
+    assert_eq!(pre_test, &true);
     run(&["Hello", "there"], "tests/expected/hello2.txt")
 }
-#[test]
-fn hello1_no_newline() -> TestResult {
+
+#[rstest]
+fn hello1_no_newline(pre_test: &bool) -> TestResult {
+    assert_eq!(pre_test, &true);
     run(&["Hello  there", "-n"], "tests/expected/hello1.n.txt")
 }
-#[test]
-fn hello2_no_newline() -> TestResult {
+
+#[rstest]
+fn hello2_no_newline(pre_test: &bool) -> TestResult {
+    assert_eq!(pre_test, &true);
     run(&["-n", "Hello", "there"], "tests/expected/hello2.n.txt")
 }