feat: automated integration test for example/basic

Adds automated CI integration tests to the basic example.
The integration tests launch and configure a keycloak server, launch the
example and test its functionality with a headless browser.

examples/basic/tests/integration.rs

@@ -0,0 +1,101 @@
+mod keycloak;
+
+use headless_chrome::Browser;
+use log::info;
+use testcontainers::*;
+
+use crate::keycloak::{Client, Keycloak, Realm, User};
+
+#[tokio::test(flavor = "multi_thread")]
+async fn first() {
+    env_logger::init();
+
+    let docker = clients::Cli::default();
+
+    let alice = User {
+        username: "alice".to_string(),
+        email: "alice@example.com".to_string(),
+        firstname: "alice".to_string(),
+        lastname: "doe".to_string(),
+        password: "alice".to_string(),
+    };
+
+    let basic_client = Client {
+        client_id: "axum-oidc-example-basic".to_string(),
+        client_secret: Some("123456".to_string()),
+    };
+
+    let keycloak = Keycloak::start(
+        vec![Realm {
+            name: "test".to_string(),
+            users: vec![alice.clone()],
+            clients: vec![basic_client.clone()],
+        }],
+        &docker,
+    )
+    .await;
+
+    info!("starting basic example app");
+
+    let app_url = "http://127.0.0.1:8080/";
+    let app_handle = tokio::spawn(basic::run(
+        app_url.to_string(),
+        format!("{}/realms/test", keycloak.url()),
+        basic_client.client_id.to_string(),
+        basic_client.client_secret.clone(),
+    ));
+
+    info!("starting browser");
+
+    let browser = Browser::default().unwrap();
+    let tab = browser.new_tab().unwrap();
+
+    tab.navigate_to(&format!("{}bar", app_url)).unwrap();
+    let body = tab
+        .wait_for_xpath(r#"/html/body/pre"#)
+        .unwrap()
+        .get_inner_text()
+        .unwrap();
+    assert_eq!(body, "Hello anon!");
+
+    tab.navigate_to(&format!("{}foo", app_url)).unwrap();
+    let username = tab.wait_for_xpath(r#"//*[@id="username"]"#).unwrap();
+    username.type_into(&alice.username).unwrap();
+    let password = tab.wait_for_xpath(r#"//*[@id="password"]"#).unwrap();
+    password.type_into(&alice.password).unwrap();
+    let submit = tab.wait_for_xpath(r#"//*[@id="kc-login"]"#).unwrap();
+    submit.click().unwrap();
+
+    let body = tab
+        .wait_for_xpath(r#"/html/body/pre"#)
+        .unwrap()
+        .get_inner_text()
+        .unwrap();
+    assert!(body.starts_with("Hello ") && body.contains('-'));
+
+    tab.navigate_to(&format!("{}bar", app_url)).unwrap();
+    let body = tab
+        .wait_for_xpath(r#"/html/body/pre"#)
+        .unwrap()
+        .get_inner_text()
+        .unwrap();
+    assert!(body.contains("! You are already logged in from another Handler."));
+
+    tab.navigate_to(&format!("{}logout", app_url)).unwrap();
+    tab.wait_until_navigated().unwrap();
+
+    tab.navigate_to(&format!("{}bar", app_url)).unwrap();
+    let body = tab
+        .wait_for_xpath(r#"/html/body/pre"#)
+        .unwrap()
+        .get_inner_text()
+        .unwrap();
+    assert_eq!(body, "Hello anon!");
+
+    tab.navigate_to(&format!("{}foo", app_url)).unwrap();
+    tab.wait_until_navigated().unwrap();
+    tab.find_element_by_xpath(r#"//*[@id="username"]"#).unwrap();
+
+    tab.close(true).unwrap();
+    app_handle.abort();
+}