chore: random password function

Cargo.toml

@@ -12,3 +12,4 @@ serde = { version = "1.0.203", features = ["derive"] }
 serde_yaml = "0.9.34+deprecated"
 tokio = { version = "1.38.0", features = ["macros", "rt"] }
 vaultrs = "0.7.2"
+rand = "0.9.0-alpha.1"

src/main.rs

@@ -10,6 +10,7 @@ use crate::workflow::switch_active_users;
 
 mod cli;
 mod config;
+mod password;
 mod vault;
 mod workflow;
 

src/password.rs

@@ -0,0 +1,31 @@
+use rand::{Rng, thread_rng};
+use rand::distributions::Alphanumeric;
+
+fn generate_random_password(length: usize) -> String {
+    let mut rng = thread_rng();
+    let password: String = (0..length)
+        .map(|_| rng.sample(Alphanumeric) as char)
+        .collect();
+    password
+}
+
+#[cfg(test)]
+mod test {
+    use super::*;
+
+    #[test]
+    fn test_password_length() {
+        for length in vec![8, 16, 32] {
+            let password = generate_random_password(length);
+            assert_eq!(password.len(), length);
+        }
+    }
+
+    #[test]
+    fn test_password_content() {
+        let password = generate_random_password(10);
+        assert!(password.chars().all(|c| c.is_alphanumeric()));
+        assert!(password.chars().any(|c| c.is_lowercase()));
+        assert!(password.chars().any(|c| c.is_uppercase()));
+    }
+}

src/vault.rs

@@ -83,13 +83,10 @@ fn get_vault_client(config: &Config) -> VaultClient {
 }
 
 mod test {
-    use std::env;
-
+    use super::*;
+    use crate::config::PostgresConfig;
     use vaultrs::client::Client;
 
-    use crate::config::{Config, PostgresConfig, VaultConfig};
-    use crate::vault::{get_vault_client, Vault, VAULT_TOKEN};
-
     #[test]
     fn test_vault_connect() {
         let config = Config {