Move environment parsing tests out of the unit test suite (#1438)

… since they can influence other tests.

server/svix-server/src/cfg.rs

@@ -452,7 +452,7 @@ pub fn load() -> Result<Arc<ConfigurationInner>> {
 
 #[cfg(test)]
 mod tests {
-    use std::{sync::Arc, time::Duration};
+    use std::sync::Arc;
 
     use figment::{
         providers::{Format as _, Toml},
@@ -462,74 +462,8 @@ mod tests {
     use super::{load, CacheBackend, CacheType, QueueBackend, QueueType};
     use crate::core::security::{JWTAlgorithm, JwtSigningConfig};
 
-    #[test]
-    fn test_retry_schedule_parsing() {
-        figment::Jail::expect_with(|jail| {
-            jail.set_env("SVIX_JWT_SECRET", "x");
-
-            // Multi item
-            jail.set_env("SVIX_RETRY_SCHEDULE", "[1,2]");
-
-            let cfg = load().unwrap();
-            assert_eq!(
-                cfg.retry_schedule,
-                vec![Duration::new(1, 0), Duration::new(2, 0)]
-            );
-
-            // Single item
-            jail.set_env("SVIX_RETRY_SCHEDULE", "[1]");
-
-            let cfg = load().unwrap();
-            assert_eq!(cfg.retry_schedule, vec![Duration::new(1, 0)]);
-
-            // Empty
-            jail.set_env("SVIX_RETRY_SCHEDULE", "[]");
-
-            let cfg = load().unwrap();
-            assert!(cfg.retry_schedule.is_empty());
-
-            Ok(())
-        });
-    }
-
-    #[test]
-    fn test_retry_schedule_parsing_legacy() {
-        figment::Jail::expect_with(|jail| {
-            jail.set_env("SVIX_JWT_SECRET", "x");
-
-            // Multi item
-            jail.set_env("SVIX_RETRY_SCHEDULE", "1,2");
-
-            let cfg = load().unwrap();
-            assert_eq!(
-                cfg.retry_schedule,
-                vec![Duration::new(1, 0), Duration::new(2, 0)]
-            );
-
-            // Single item and empty were failing before so not testing them
-
-            Ok(())
-        });
-    }
-
-    #[test]
-    fn test_proxy_addr_from_env_parsing() {
-        figment::Jail::expect_with(|jail| {
-            jail.set_env("SVIX_QUEUE_TYPE", "memory");
-            jail.set_env("SVIX_JWT_SECRET", "x");
-            jail.set_env("SVIX_PROXY_ADDR", "socks5://127.0.0.1");
-
-            let cfg = load().unwrap();
-            assert!(cfg.proxy_config.is_some());
-
-            Ok(())
-        });
-    }
-
     #[test]
     fn test_cache_or_queue_dsn_priority() {
-        // NOTE: Does not use `figment::Jail` like the above because set env vars will leak into
-        // other tests overwriting real configurations
         let mut cfg = load().unwrap();
         let cfg = Arc::make_mut(&mut cfg);
 

server/svix-server/tests/config.rs

@@ -0,0 +1,77 @@
+use std::time::Duration;
+
+use svix_server::cfg::load;
+
+// Using a single test in its own integration test binary such that
+// `figment::Jail` can't influence other tests.
+//
+// The only thing it does is save & restore things, it doesn't actually have any
+// protections against `jail.set_env` values being seen by other tests -
+// internally it calls `std::env::set_var`.
+#[test]
+fn test_environment_parsing() {
+    test_retry_schedule_parsing();
+    test_retry_schedule_parsing_legacy();
+    test_proxy_addr_from_env_parsing();
+}
+
+fn test_retry_schedule_parsing() {
+    figment::Jail::expect_with(|jail| {
+        jail.set_env("SVIX_JWT_SECRET", "x");
+
+        // Multi item
+        jail.set_env("SVIX_RETRY_SCHEDULE", "[1,2]");
+
+        let cfg = load().unwrap();
+        assert_eq!(
+            cfg.retry_schedule,
+            vec![Duration::new(1, 0), Duration::new(2, 0)]
+        );
+
+        // Single item
+        jail.set_env("SVIX_RETRY_SCHEDULE", "[1]");
+
+        let cfg = load().unwrap();
+        assert_eq!(cfg.retry_schedule, vec![Duration::new(1, 0)]);
+
+        // Empty
+        jail.set_env("SVIX_RETRY_SCHEDULE", "[]");
+
+        let cfg = load().unwrap();
+        assert!(cfg.retry_schedule.is_empty());
+
+        Ok(())
+    });
+}
+
+fn test_retry_schedule_parsing_legacy() {
+    figment::Jail::expect_with(|jail| {
+        jail.set_env("SVIX_JWT_SECRET", "x");
+
+        // Multi item
+        jail.set_env("SVIX_RETRY_SCHEDULE", "1,2");
+
+        let cfg = load().unwrap();
+        assert_eq!(
+            cfg.retry_schedule,
+            vec![Duration::new(1, 0), Duration::new(2, 0)]
+        );
+
+        // Single item and empty were failing before so not testing them
+
+        Ok(())
+    });
+}
+
+fn test_proxy_addr_from_env_parsing() {
+    figment::Jail::expect_with(|jail| {
+        jail.set_env("SVIX_QUEUE_TYPE", "memory");
+        jail.set_env("SVIX_JWT_SECRET", "x");
+        jail.set_env("SVIX_PROXY_ADDR", "socks5://127.0.0.1");
+
+        let cfg = load().unwrap();
+        assert!(cfg.proxy_config.is_some());
+
+        Ok(())
+    });
+}