From e50346eb70cd36bdbe2ca1565caa89fa54fdd460 Mon Sep 17 00:00:00 2001
From: Cormac Relf <web@cormacrelf.net>
Date: Tue, 28 May 2024 15:42:02 +1000
Subject: [PATCH] Add tests for uniqueness of route macros

---
 core/codegen/tests/ui-pass.rs                 |  5 ++++
 .../ui-pass/route-uniqueness-generated.rs     | 27 +++++++++++++++++++
 .../codegen/tests/ui-pass/route-uniqueness.rs | 18 +++++++++++++
 3 files changed, 50 insertions(+)
 create mode 100644 core/codegen/tests/ui-pass.rs
 create mode 100644 core/codegen/tests/ui-pass/route-uniqueness-generated.rs
 create mode 100644 core/codegen/tests/ui-pass/route-uniqueness.rs

diff --git a/core/codegen/tests/ui-pass.rs b/core/codegen/tests/ui-pass.rs
new file mode 100644
index 0000000000..7faeedbadd
--- /dev/null
+++ b/core/codegen/tests/ui-pass.rs
@@ -0,0 +1,5 @@
+#[test]
+fn ui() {
+    let t = trybuild::TestCases::new();
+    t.pass(format!("tests/ui-pass/*.rs"));
+}
diff --git a/core/codegen/tests/ui-pass/route-uniqueness-generated.rs b/core/codegen/tests/ui-pass/route-uniqueness-generated.rs
new file mode 100644
index 0000000000..a9e43376a9
--- /dev/null
+++ b/core/codegen/tests/ui-pass/route-uniqueness-generated.rs
@@ -0,0 +1,27 @@
+#[macro_use] extern crate rocket;
+
+// Makes sure that the hashing of the proc macro's call site span
+// is enough, even if we're inside a declarative macro
+macro_rules! gen_routes {
+    () => {
+        #[get("/")]
+        fn index() -> &'static str {
+            "GET"
+        }
+
+        mod two {
+            #[get("/")]
+            fn index() -> &'static str {
+                "GET"
+            }
+        }
+    }
+}
+
+gen_routes!();
+
+mod module {
+    gen_routes!();
+}
+
+fn main() {}
diff --git a/core/codegen/tests/ui-pass/route-uniqueness.rs b/core/codegen/tests/ui-pass/route-uniqueness.rs
new file mode 100644
index 0000000000..4da3bc47a3
--- /dev/null
+++ b/core/codegen/tests/ui-pass/route-uniqueness.rs
@@ -0,0 +1,18 @@
+#[macro_use] extern crate rocket;
+
+#[get("/")]
+fn index() -> &'static str {
+    "GET"
+}
+
+mod module {
+    // This one has all the same macro inputs, and we need it to
+    // generate a crate-wide unique identifier for the macro it
+    // defines.
+    #[get("/")]
+    pub fn index() -> &'static str {
+        "whatever"
+    }
+}
+
+fn main() {}