Use the crate mockall to mock the email service in integration tests

This commit is contained in:
Greg Burri 2025-05-02 13:38:41 +02:00
parent 3626f8a11b
commit 8c70f90234
5 changed files with 109 additions and 23 deletions

71
Cargo.lock generated
View file

@ -852,6 +852,12 @@ version = "0.15.7"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "1aaf95b3e5c8f23aa320147307562d361db0ae0d51242340f558153b4eb2439b"
[[package]]
name = "downcast"
version = "0.11.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "1435fa1053d8b2fbbe9be7e97eca7f33d37b28409959813daefc1446a14247f1"
[[package]]
name = "dtoa"
version = "1.0.10"
@ -1000,6 +1006,12 @@ dependencies = [
"percent-encoding",
]
[[package]]
name = "fragile"
version = "2.0.1"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "28dd6caf6059519a65843af8fe2a3ae298b14b80179855aeb4adc2c1934ee619"
[[package]]
name = "frontend"
version = "0.1.0"
@ -1971,6 +1983,32 @@ dependencies = [
"windows-sys 0.52.0",
]
[[package]]
name = "mockall"
version = "0.13.1"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "39a6bfcc6c8c7eed5ee98b9c3e33adc726054389233e201c95dab2d41a3839d2"
dependencies = [
"cfg-if",
"downcast",
"fragile",
"mockall_derive",
"predicates",
"predicates-tree",
]
[[package]]
name = "mockall_derive"
version = "0.13.1"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "25ca3004c2efe9011bd4e461bd8256445052b9615405b4f7ea43fc8ca5c20898"
dependencies = [
"cfg-if",
"proc-macro2",
"quote",
"syn",
]
[[package]]
name = "new_debug_unreachable"
version = "1.0.6"
@ -2303,6 +2341,32 @@ version = "0.1.1"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "925383efa346730478fb4838dbe9137d2a47675ad789c546d150a6e1dd4ab31c"
[[package]]
name = "predicates"
version = "3.1.3"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "a5d19ee57562043d37e82899fade9a22ebab7be9cef5026b07fda9cdd4293573"
dependencies = [
"anstyle",
"predicates-core",
]
[[package]]
name = "predicates-core"
version = "1.0.9"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "727e462b119fe9c93fd0eb1429a5f7647394014cf3c04ab2c0350eeb09095ffa"
[[package]]
name = "predicates-tree"
version = "1.0.12"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "72dd2d6d381dfb73a193c7fca536518d7caee39fc8503f74e7dc0be0531b425c"
dependencies = [
"predicates-core",
"termtree",
]
[[package]]
name = "pretty_assertions"
version = "1.4.1"
@ -2464,6 +2528,7 @@ dependencies = [
"cookie",
"itertools",
"lettre",
"mockall",
"rand 0.9.1",
"rand_core 0.9.3",
"ron",
@ -3308,6 +3373,12 @@ dependencies = [
"windows-sys 0.59.0",
]
[[package]]
name = "termtree"
version = "0.5.1"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "8f50febec83f5ee1df3015341d8bd429f2d1cc62bcba7ea2076759d315084683"
[[package]]
name = "thiserror"
version = "1.0.69"

View file

@ -56,3 +56,4 @@ thiserror = "2"
axum-test = "17"
cookie = "0.18"
scraper = "0.23"
mockall = "0.13"

View file

@ -1,10 +1,11 @@
use std::error::Error;
use std::{error::Error, sync::Arc};
use axum_test::TestServer;
use cookie::Cookie;
use mockall::predicate;
use scraper::{ElementRef, Html, Selector};
use recipes::app;
use recipes::{app, email};
use serde::Serialize;
mod utils;
@ -104,7 +105,18 @@ pub struct SignUpFormData {
#[tokio::test]
async fn sign_up() -> Result<(), Box<dyn Error>> {
// Arrange.
let state = utils::common_state().await?;
let mut mock_email_service = utils::mock_email::MockEmailService::new();
mock_email_service
.expect_send_email()
.with(
predicate::eq("president@spaceball.planet"),
predicate::always(),
predicate::always(),
)
.times(1)
.returning(|_email, _title, _message| Ok(()));
let state = utils::common_state_with_email_service(Arc::new(mock_email_service)).await?;
let server = TestServer::new(app::make_service(state))?;
// Act.
@ -122,7 +134,6 @@ async fn sign_up() -> Result<(), Box<dyn Error>> {
let document = Html::parse_document(&response.text());
assert_eq!(document.errors.len(), 0);
dbg!(response);
Ok(())
}

View file

@ -1,23 +1,20 @@
use std::sync::Arc;
use recipes::email;
use async_trait::async_trait;
use mockall::{mock, predicate::*};
pub struct MockEmailService;
use crate::email;
impl MockEmailService {
pub fn create_service() -> Arc<dyn email::EmailServiceTrait> {
Arc::new(Self {})
mock! {
pub EmailService {}
#[async_trait]
impl email::EmailServiceTrait for EmailService {
async fn send_email(&self, email: &str, title: &str, message: &str)
-> Result<(), email::Error>;
}
}
#[async_trait::async_trait]
impl email::EmailServiceTrait for MockEmailService {
async fn send_email(
&self,
_email: &str,
_title: &str,
_message: &str,
) -> Result<(), email::Error> {
Ok(())
}
// Default email service: will crash if `send_email` method is called.
pub fn new_mock_email_service() -> Arc<dyn email::EmailServiceTrait> {
Arc::new(MockEmailService::new())
}

View file

@ -1,10 +1,16 @@
use std::error::Error;
use std::{error::Error, sync::Arc};
use recipes::{app, config, data::db, log};
use recipes::{app, config, data::db, email, log};
mod mock_email;
pub mod mock_email;
pub async fn common_state() -> Result<app::AppState, Box<dyn Error>> {
common_state_with_email_service(mock_email::new_mock_email_service()).await
}
pub async fn common_state_with_email_service(
email_service: Arc<dyn email::EmailServiceTrait>,
) -> Result<app::AppState, Box<dyn Error>> {
let db_connection = db::Connection::new_in_memory().await?;
let config = config::Config::default();
let log = log::Log::new_no_log();
@ -12,7 +18,7 @@ pub async fn common_state() -> Result<app::AppState, Box<dyn Error>> {
config,
db_connection,
log,
email_service: mock_email::MockEmailService::create_service(),
email_service,
})
}