use crate::helpers::{TestApp, assert_is_redirect_to};

#[tokio::test]
async fn an_error_flash_message_is_set_on_failure() {
    let app = TestApp::spawn().await;

    let login_body = serde_json::json!({
        "username": "user",
        "password": "password"
    });

    let response = app.post_login(&login_body).await;

    assert_eq!(response.status().as_u16(), 303);
    assert_is_redirect_to(&response, "/login");

    let login_page_html = app.get_login_html().await;
    assert!(login_page_html.contains("Authentication failed"));

    let login_page_html = app.get_login_html().await;
    assert!(!login_page_html.contains("Authentication failed"));
}