diff --git a/examples/config/src/main.rs b/examples/config/src/main.rs
index 30fb2b83..84583182 100644
--- a/examples/config/src/main.rs
+++ b/examples/config/src/main.rs
@@ -4,9 +4,6 @@
 extern crate rocket;
 extern crate config;
 
-#[cfg(test)]
-mod tests;
-
 // This example's illustration is the Rocket.toml file.
 fn main() {
     rocket::ignite().mount("/hello", routes![config::hello]).launch()
diff --git a/examples/config/src/tests.rs b/examples/config/src/tests.rs
deleted file mode 100644
index 7f8bc55a..00000000
--- a/examples/config/src/tests.rs
+++ /dev/null
@@ -1,13 +0,0 @@
-use super::rocket;
-use rocket::testing::MockRequest;
-use rocket::http::Method;
-
-#[test]
-fn test_hello_world() {
-    let rocket = rocket::ignite().mount("/hello", routes![super::hello]);
-    let mut request = MockRequest::new(Method::Get, "/hello");
-    let mut response = request.dispatch_with(&rocket);
-
-    assert_eq!(response.body().and_then(|b| b.into_string()),
-               Some("Hello, world!".to_string()));
-}
diff --git a/examples/config/tests/common/mod.rs b/examples/config/tests/common/mod.rs
index 375b22a1..3a248414 100644
--- a/examples/config/tests/common/mod.rs
+++ b/examples/config/tests/common/mod.rs
@@ -1,17 +1,18 @@
 extern crate rocket;
 extern crate config as lib;
-use std;
+
 use rocket::config::{self, Environment};
 use rocket::http::Method;
 use rocket::LoggingLevel;
 use rocket::testing::MockRequest;
 
-
 pub fn test_config(environment: Environment) {
-    // Manually set the config environment variable so that Rocket initializes it in `init()`.
-    std::env::set_var("ROCKET_ENV", environment.to_string());
+    // Manually set the config environment variable. Rocket will initialize the
+    // environment in `ignite()`.
+    ::std::env::set_var("ROCKET_ENV", environment.to_string());
     rocket::ignite().mount("/hello", routes![lib::hello]);
 
+    // Get the active environment and ensure that it matches our expectations.
     let config = config::active().unwrap();
     match environment {
         Environment::Development => {
@@ -39,7 +40,7 @@ pub fn test_config(environment: Environment) {
         }
     }
 
-    // Rocket `take`s the key, so this should always be `None`
+    // Rocket `take`s the key, so this should always be `None`.
     assert_eq!(config.take_session_key(), None);
 }
 
diff --git a/examples/config/tests/development.rs b/examples/config/tests/development.rs
index df35d228..439aff73 100644
--- a/examples/config/tests/development.rs
+++ b/examples/config/tests/development.rs
@@ -2,12 +2,11 @@
 #![plugin(rocket_codegen)]
 
 extern crate rocket;
-use rocket::config::Environment;
 
 mod common;
 
 #[test]
-fn test() {
-    common::test_config(Environment::Development);
+fn test_development_config() {
+    common::test_config(rocket::config::Environment::Development);
     common::test_hello();
 }
diff --git a/examples/config/tests/production.rs b/examples/config/tests/production.rs
index 08397303..b939739a 100644
--- a/examples/config/tests/production.rs
+++ b/examples/config/tests/production.rs
@@ -2,12 +2,11 @@
 #![plugin(rocket_codegen)]
 
 extern crate rocket;
-use rocket::config::Environment;
 
 mod common;
 
 #[test]
-fn test() {
-    common::test_config(Environment::Production);
+fn test_production_config() {
+    common::test_config(rocket::config::Environment::Production);
     common::test_hello();
 }
diff --git a/examples/config/tests/staging.rs b/examples/config/tests/staging.rs
index fcb1c519..2d5f8981 100644
--- a/examples/config/tests/staging.rs
+++ b/examples/config/tests/staging.rs
@@ -2,12 +2,11 @@
 #![plugin(rocket_codegen)]
 
 extern crate rocket;
-use rocket::config::Environment;
 
 mod common;
 
 #[test]
-fn test() {
-    common::test_config(Environment::Staging);
+fn test_staging_config() {
+    common::test_config(rocket::config::Environment::Staging);
     common::test_hello();
 }