Update test suite to drop database automatically when test is successfull

src/email_client.rs

@@ -119,7 +119,7 @@ mod tests {
         EmailClient::build(settings).unwrap()
     }
 
-    #[tokio::test]
+    #[sqlx::test]
     async fn send_email_sends_the_expected_request() {
         let mock_server = MockServer::start().await;
         let email_client = email_client(mock_server.uri());
@@ -141,7 +141,7 @@ mod tests {
             .unwrap();
     }
 
-    #[tokio::test]
+    #[sqlx::test]
     async fn send_email_succeeds_if_the_server_returns_200() {
         let mock_server = MockServer::start().await;
         let email_client = email_client(mock_server.uri());
@@ -159,7 +159,7 @@ mod tests {
         assert_ok!(response);
     }
 
-    #[tokio::test]
+    #[sqlx::test]
     async fn send_email_fails_if_the_server_retuns_500() {
         let mock_server = MockServer::start().await;
         let email_client = email_client(mock_server.uri());
@@ -177,7 +177,7 @@ mod tests {
         assert_err!(response);
     }
 
-    #[tokio::test]
+    #[sqlx::test]
     async fn send_email_times_out_if_the_server_takes_too_long() {
         let mock_server = MockServer::start().await;
         let email_client = email_client(mock_server.uri());