tests: remove hidden couplings

tests/api/helpers.rs

@@ -27,6 +27,25 @@ pub struct TestApp {
     pub db_pool: PgPool,
 }
 
+impl TestApp {
+    pub async fn get_health_check(&self) -> reqwest::Response {
+        reqwest::Client::new()
+            .get(&format!("{}/health_check", &self.address))
+            .send()
+            .await
+            .expect("Failed to execute request.")
+    }
+    pub async fn post_subscriptions(&self, body: String) -> reqwest::Response {
+        reqwest::Client::new()
+            .post(&format!("{}/subscriptions", &self.address))
+            .header("Content-Type", "application/x-www-form-urlencoded")
+            .body(body)
+            .send()
+            .await
+            .expect("Failed to execute request.")
+    }
+}
+
 pub async fn spawn_app() -> TestApp {
     // The first time `initialize` is invoked the code in `TRACING` is executed.
     // All other invocations will instead skip execution.
@@ -60,7 +79,6 @@ pub async fn spawn_app() -> TestApp {
 
     TestApp {
         address,
-        // address: format!("http://localhost:{}", application_port),
         // port: application_port,
         db_pool: connection_pool,
         // email_server,