1 files changed, 83 insertions, 0 deletions
diff --git a/src/channel/routes/test.rs b/src/channel/routes/test.rs
new file mode 100644
index 0000000..81f1465
--- /dev/null
+++ b/src/channel/routes/test.rs
@@ -0,0 +1,83 @@
+use axum::extract::{Json, State};
+use futures::stream::StreamExt as _;
+
+use super::post;
+use crate::{
+    channel::{self, app},
+    event,
+    test::fixtures::{self, future::Immediately as _},
+};
+
+#[tokio::test]
+async fn new_channel() {
+    // Set up the environment
+
+    let app = fixtures::scratch_app().await;
+    let creator = fixtures::login::create(&app, &fixtures::now()).await;
+
+    // Call the endpoint
+
+    let name = fixtures::channel::propose();
+    let request = post::Request { name: name.clone() };
+    let Json(response_channel) =
+        post::handler(State(app.clone()), creator, fixtures::now(), Json(request))
+            .await
+            .expect("new channel in an empty app");
+
+    // Verify the structure of the response
+
+    assert_eq!(name, response_channel.name);
+
+    // Verify the semantics
+
+    let snapshot = app.boot().snapshot().await.expect("boot always succeeds");
+    assert!(snapshot
+        .channels
+        .iter()
+        .any(|channel| channel.name == response_channel.name && channel.id == response_channel.id));
+
+    let mut events = app
+        .events()
+        .subscribe(None)
+        .await
+        .expect("subscribing never fails")
+        .filter(fixtures::filter::created());
+
+    let event = events
+        .next()
+        .immediately()
+        .await
+        .expect("creation event published");
+
+    assert!(matches!(
+        event,
+        event::Event::Channel(channel::Event::Created(event))
+            if event.channel == response_channel
+    ));
+}
+
+#[tokio::test]
+async fn duplicate_name() {
+    // Set up the environment
+
+    let app = fixtures::scratch_app().await;
+    let creator = fixtures::login::create(&app, &fixtures::now()).await;
+    let channel = fixtures::channel::create(&app, &fixtures::now()).await;
+
+    // Call the endpoint
+
+    let request = post::Request {
+        name: channel.name.clone(),
+    };
+    let post::Error(error) =
+        post::handler(State(app.clone()), creator, fixtures::now(), Json(request))
+            .await
+            .expect_err("duplicate channel name should fail the request");
+
+    // Verify the structure of the response
+
+    assert!(matches!(
+        error,
+        app::CreateError::DuplicateName(name) if channel.name == name
+    ));
+}