🔴 Add actix web integration test

Author: isaac1024

exercises/tiered_pricing/solutions/isaac1024_baby-steps/Cargo.lock

@@ -5,6 +5,8 @@ edition = "2021"
 
 [dependencies]
 actix-web = "4"
+serde = { version = "1.0", features = ["derive"] }
+serde_json = "1.0"
 
 [dev-dependencies]
 fake = "2.4"

exercises/tiered_pricing/solutions/isaac1024_baby-steps/Cargo.toml

@@ -1,8 +1,8 @@
-# Rust base skeleton for TDD katas
+# Tiered pricing kata with rust
 
 ## Run app
 
-`make up` default url: http://localhost:8000/health-check
+`make up` url example: http://localhost:8000/pricing?subscriptions=1
 
 ## Run tests
 

exercises/tiered_pricing/solutions/isaac1024_baby-steps/README.md

@@ -7,19 +7,18 @@ pub async fn health_check() -> impl Responder {
 #[cfg(test)]
 mod tests {
     use super::*;
-    use actix_web::{App, test, web};
+    use actix_web::{test, web, App};
 
     #[actix_web::test]
     async fn health_check_return_ok() {
-        let app = test::init_service(
-            App::new().route("/health-check", web::get().to(health_check))
-        ).await;
+        let app =
+            test::init_service(App::new().route("/health-check", web::get().to(health_check)))
+                .await;
 
         let request = test::TestRequest::get().uri("/health-check").to_request();
 
         let response = test::call_service(&app, request).await;
 
-        println!("{:?}", response.status());
         assert!(response.status().is_success());
     }
 }

exercises/tiered_pricing/solutions/isaac1024_baby-steps/src/health_check.rs

@@ -1,6 +1,8 @@
-use actix_web::web;
 use crate::health_check::health_check;
+use crate::tiered_pricing::tiered_pricing;
+use actix_web::web;
 
 pub fn routes(cfg: &mut web::ServiceConfig) {
     cfg.route("/health-check", web::get().to(health_check));
+    cfg.route("/pricing", web::get().to(tiered_pricing));
 }

exercises/tiered_pricing/solutions/isaac1024_baby-steps/src/routes.rs

@@ -1,5 +1,16 @@
+use actix_web::{HttpResponse, Responder};
+use serde::{Deserialize, Serialize};
 use std::fmt;
 
+#[derive(Serialize, Deserialize)]
+struct Subscriptions {
+    pricing: u32,
+}
+
+pub async fn tiered_pricing() -> impl Responder {
+    HttpResponse::Ok().json(Subscriptions { pricing: 0 })
+}
+
 type SubscriptionResult<T> = Result<T, NumberSubscriptionsError>;
 
 #[derive(Debug)]
@@ -34,11 +45,12 @@ fn get_total_subscription_price(number_of_subscriptions: u32) -> SubscriptionRes
 
 #[cfg(test)]
 mod tests {
-    use crate::tiered_pricing::{get_total_subscription_price, NumberSubscriptionsError};
+    use super::*;
+    use actix_web::{test, web, App};
     use fake::Fake;
 
     #[test]
-    fn when_subscriptions_are_between_1_and_2_unit_price_is_299(
+    async fn when_subscriptions_are_between_1_and_2_unit_price_is_299(
     ) -> Result<(), NumberSubscriptionsError> {
         let number_of_subscriptions = (1..=2).fake();
 
@@ -51,7 +63,7 @@ mod tests {
     }
 
     #[test]
-    fn when_subscriptions_are_between_3_and_10_unit_price_is_239(
+    async fn when_subscriptions_are_between_3_and_10_unit_price_is_239(
     ) -> Result<(), NumberSubscriptionsError> {
         let number_of_subscriptions = (3..=10).fake();
 
@@ -64,7 +76,7 @@ mod tests {
     }
 
     #[test]
-    fn when_subscriptions_are_between_11_and_25_unit_price_is_219(
+    async fn when_subscriptions_are_between_11_and_25_unit_price_is_219(
     ) -> Result<(), NumberSubscriptionsError> {
         let number_of_subscriptions = (11..=25).fake();
 
@@ -77,7 +89,7 @@ mod tests {
     }
 
     #[test]
-    fn when_subscriptions_are_between_26_and_50_unit_price_is_199(
+    async fn when_subscriptions_are_between_26_and_50_unit_price_is_199(
     ) -> Result<(), NumberSubscriptionsError> {
         let number_of_subscriptions = (26..=50).fake();
 
@@ -90,7 +102,7 @@ mod tests {
     }
 
     #[test]
-    fn when_subscriptions_are_more_than_50_unit_price_is_149(
+    async fn when_subscriptions_are_more_than_50_unit_price_is_149(
     ) -> Result<(), NumberSubscriptionsError> {
         let number_of_subscriptions = (51..1000).fake();
 
@@ -103,7 +115,23 @@ mod tests {
     }
 
     #[test]
-    fn when_get_0_subscriptions_return_error() {
+    async fn when_get_0_subscriptions_return_error() {
         assert!(get_total_subscription_price(0).is_err());
     }
+
+    #[actix_web::test]
+    async fn when_send_n_subscriptions_return_price() {
+        let number_of_subscriptions: u32 = (51..1000).fake();
+
+        let app =
+            test::init_service(App::new().route("/pricing", web::get().to(tiered_pricing))).await;
+
+        let request = test::TestRequest::get()
+            .uri(format!("/pricing?subscriptions={}", number_of_subscriptions).as_str())
+            .to_request();
+
+        let response: Subscriptions = test::call_and_read_body_json(&app, request).await;
+
+        assert_eq!(number_of_subscriptions * 149, response.pricing);
+    }
 }