code refactor

Reviewed-on: #26

crates/application/tests/auth/login_test.rs

@@ -0,0 +1,83 @@
+use crate::support::TestContextBuilder;
+use crate::support::{login_command, register_command};
+use std::sync::Arc;
+
+use domain::testing::InMemoryStore;
+
+use application::auth::{
+    commands::RegisterCommand,
+    deps::{LoginDeps, RegisterDeps},
+    login, register,
+};
+
+async fn setup_user(b: &TestContextBuilder, email: &str, password: &str) {
+    let deps = RegisterDeps {
+        user: b.user_repo.clone(),
+        password_hasher: b.password_hasher.clone(),
+        config: b.config.clone(),
+    };
+    register::execute(
+        &deps,
+        RegisterCommand {
+            password: password.to_string(),
+            ..register_command(email, "testuser")
+        },
+    )
+    .await
+    .unwrap();
+}
+
+#[tokio::test]
+async fn login_with_valid_credentials_returns_a_token() {
+    let users = InMemoryStore::new();
+    let b = TestContextBuilder::new().with_users(Arc::clone(&users) as _);
+    setup_user(&b, "carol@example.com", "secret123").await;
+
+    let deps = LoginDeps {
+        user: b.user_repo.clone(),
+        password_hasher: b.password_hasher.clone(),
+        auth: b.auth_service.clone(),
+        refresh_session: b.refresh_session_repo.clone(),
+        config: b.config.clone(),
+    };
+    let result = login::execute(&deps, login_command("carol@example.com", "secret123"))
+        .await
+        .unwrap();
+
+    assert!(!result.token.is_empty());
+    assert!(!result.refresh_token.is_empty());
+    assert_eq!(result.email, "carol@example.com");
+}
+
+#[tokio::test]
+async fn login_with_the_wrong_password_fails() {
+    let users = InMemoryStore::new();
+    let b = TestContextBuilder::new().with_users(Arc::clone(&users) as _);
+    setup_user(&b, "dave@example.com", "correct_password").await;
+
+    let deps = LoginDeps {
+        user: b.user_repo.clone(),
+        password_hasher: b.password_hasher.clone(),
+        auth: b.auth_service.clone(),
+        refresh_session: b.refresh_session_repo.clone(),
+        config: b.config.clone(),
+    };
+    let result = login::execute(&deps, login_command("dave@example.com", "wrong_password")).await;
+
+    assert!(result.is_err());
+}
+
+#[tokio::test]
+async fn login_with_an_unknown_email_fails() {
+    let b = TestContextBuilder::new();
+    let deps = LoginDeps {
+        user: b.user_repo.clone(),
+        password_hasher: b.password_hasher.clone(),
+        auth: b.auth_service.clone(),
+        refresh_session: b.refresh_session_repo.clone(),
+        config: b.config.clone(),
+    };
+    let result = login::execute(&deps, login_command("nobody@example.com", "anything")).await;
+
+    assert!(result.is_err());
+}