feat: Expose list of tests with less magic

crates/libtest2/src/lib.rs

@@ -46,6 +46,11 @@ pub mod _private {
     pub use crate::_main_parse as main_parse;
     pub use crate::_test_parse as test_parse;
     pub use crate::case::DynCase;
+
+    /// Static variable used to collect functions annotated with `#[libtest2::test]`
+    ///
+    /// Values are pushed to this by the [`crate::macros::test_parse`](`test_parse`) macro
+    pub static TESTS: DistributedList<DynCase> = DistributedList::root();
 }
 
 pub use case::main;
@@ -59,3 +64,10 @@ pub use libtest2_proc_macro::test;
 #[doc = include_str!("../README.md")]
 #[cfg(doctest)]
 pub struct ReadmeDoctests;
+
+/// Get an iterator to all collected test functions
+///
+/// Functions can be marked for collection by annotating them with the `#[libtest2::test]` macro
+pub fn get_tests() -> impl Iterator<Item = case::DynCase> {
+    _private::TESTS.iter().copied()
+}

crates/libtest2/src/macros.rs

@@ -1,13 +1,11 @@
 #[macro_export]
 macro_rules! _main_parse {
     (#[main] fn main $($item:tt)*) => {
-        static TESTS: $crate::_private::DistributedList<$crate::_private::DynCase> = $crate::_private::DistributedList::root();
-
         fn main() {
             fn inner $($item)*
 
             inner();
-            $crate::main(TESTS.iter().copied());
+            $crate::main($crate::get_tests());
         }
     };
 }
@@ -21,7 +19,7 @@ macro_rules! _test_parse {
 
         impl $crate::_private::Case for $name {
             fn name(&self) -> &str {
-                $crate::_private::push!(crate::TESTS, _: $crate::_private::DynCase = $crate::_private::DynCase(&$name));
+                $crate::_private::push!($crate::_private::TESTS, _: $crate::_private::DynCase = $crate::_private::DynCase(&$name));
 
                 stringify!($name)
             }