feat(tvix/castore/src/channel): move from_url tests r/7016

These gRPC PathInfoService tests were actually not too useful in here,
what we're mostly testing is the channel construction, so move it to
there.

Change-Id: Ic8c07558a1b28b46f863d5c39bcaa3a79cea007a
Reviewed-on: https://cl.tvl.fyi/c/depot/+/10024
Reviewed-by: Connor Brewster <cbrewster@hey.com>
Tested-by: BuildkiteCI

1 files changed, 60 insertions, 0 deletions

diff --git a/tvix/castore/src/channel.rs b/tvix/castore/src/channel.rs
index 53f9bd33442f..2fe97247679a 100644
--- a/tvix/castore/src/channel.rs
+++ b/tvix/castore/src/channel.rs
@@ -66,3 +66,63 @@ impl From<tonic::transport::Error> for Error {
         Self::TransportError(value)
     }
 }
+
+#[cfg(test)]
+mod tests {
+    use super::from_url;
+
+    /// This uses the correct scheme for a unix socket.
+    /// The fact that /path/to/somewhere doesn't exist yet is no problem, because we connect lazily.
+    #[tokio::test]
+    async fn test_valid_unix_path() {
+        let url = url::Url::parse("grpc+unix:///path/to/somewhere").expect("must parse");
+
+        assert!(from_url(&url).is_ok())
+    }
+
+    /// This uses the correct scheme for a unix socket,
+    /// but sets a host, which is unsupported.
+    #[tokio::test]
+    async fn test_invalid_unix_path_with_domain() {
+        let url =
+            url::Url::parse("grpc+unix://host.example/path/to/somewhere").expect("must parse");
+
+        assert!(from_url(&url).is_err())
+    }
+
+    /// This uses the wrong scheme
+    #[test]
+    fn test_invalid_scheme() {
+        let url = url::Url::parse("http://foo.example/test").expect("must parse");
+
+        assert!(from_url(&url).is_err());
+    }
+
+    /// This uses the correct scheme for a HTTP server.
+    /// The fact that nothing is listening there is no problem, because we connect lazily.
+    #[tokio::test]
+    async fn test_valid_http() {
+        let url = url::Url::parse("grpc+http://localhost").expect("must parse");
+
+        assert!(from_url(&url).is_ok());
+    }
+
+    /// This uses the correct scheme for a HTTPS server.
+    /// The fact that nothing is listening there is no problem, because we connect lazily.
+    #[tokio::test]
+    async fn test_valid_https() {
+        let url = url::Url::parse("grpc+https://localhost").expect("must parse");
+
+        assert!(from_url(&url).is_ok());
+    }
+
+    /// This uses the correct scheme, but also specifies
+    /// an additional path, which is not supported for gRPC.
+    /// The fact that nothing is listening there is no problem, because we connect lazily.
+    #[tokio::test]
+    async fn test_invalid_http_with_path() {
+        let url = url::Url::parse("grpc+https://localhost/some-path").expect("must parse");
+
+        assert!(from_url(&url).is_err());
+    }
+}