test: assert crate email invite emails are sent

Adds assertions to verify the existing "you've been invited as an owner"
notification emails are sent to invitees.

Author: domodwyer

src/tests/owners.rs

@@ -136,6 +136,8 @@ async fn new_crate_owner() {
     let user2 = app.db_new_user("Bar");
     token.add_named_owner("foo_owner", "BAR").await.good();
 
+    // Validate a "new co-owner invite" notification email was sent.
+    assert!(app.is_email_sent("[email protected]", "Crate ownership invitation"));
     // accept invitation for user to be added as owner
     let krate: Crate = app.db(|conn| Crate::by_name("foo_owner").first(conn).unwrap());
     user2
@@ -165,6 +167,13 @@ async fn create_and_add_owner(
 ) -> MockCookieUser {
     let user = app.db_new_user(username);
     token.add_named_owner(&krate.name, username).await.good();
+
+    // Validate an invite notification email was sent.
+    assert!(app.is_email_sent(
+        &format!("{username}@example.com"),
+        "Crate ownership invitation"
+    ));
+
     user.accept_ownership_invitation(&krate.name, krate.id)
         .await;
     user
@@ -262,6 +271,9 @@ async fn modify_multiple_owners() {
     let response = token
         .add_named_owners("owners_multiple", &["user2", "user3"])
         .await;
+
+    assert!(app.is_email_sent("[email protected]", "Crate ownership invitation"));
+    assert!(app.is_email_sent("[email protected]", "Crate ownership invitation"));
     assert_eq!(response.status(), StatusCode::OK);
     assert_eq!(
         response.json(),
@@ -498,6 +510,7 @@ async fn test_accept_invitation() {
         .await
         .good();
 
+    assert!(app.is_email_sent("[email protected]", "Crate ownership invitation"));
     // New owner accepts the invitation
     invited_user
         .accept_ownership_invitation(&krate.name, krate.id)

src/tests/routes/crates/owners/add.rs

@@ -259,6 +259,7 @@ async fn invite_already_invited_user() {
 
     // Check one email was sent, this will be the ownership invite email
     assert_eq!(app.as_inner().emails.mails_in_memory().unwrap().len(), 1);
+    assert!(app.is_email_sent("[email protected]", "Crate ownership invitation"));
 
     // Then invite the user a second time, the message should point out the user is already invited
     let response = owner.add_named_owner("crate_name", "invited_user").await;
@@ -298,6 +299,7 @@ async fn invite_with_existing_expired_invite() {
 
     // Check one email was sent, this will be the ownership invite email
     assert_eq!(app.as_inner().emails.mails_in_memory().unwrap().len(), 1);
+    assert!(app.is_email_sent("[email protected]", "Crate ownership invitation"));
 
     // Simulate the previous invite expiring
     expire_invitation(&app, krate.id);
@@ -315,6 +317,7 @@ async fn invite_with_existing_expired_invite() {
 
     // Check that the email for the second invite was sent
     assert_eq!(app.as_inner().emails.mails_in_memory().unwrap().len(), 2);
+    assert!(app.is_email_sent("[email protected]", "Crate ownership invitation"));
 }
 
 #[tokio::test(flavor = "multi_thread")]