diff rust/hg-cpython/src/lib.rs @ 43289:8d432d3a2d7c

rust-cpython: prepare for writing tests that require libpython

What I wanted is to disable the "cpython/extension-module<ver>" feature
while building tests executable, but that seems not doable. Instead,
this patch adds new features dedicated for tests.

The make rule is extracted so that we can easily run cargo tests.

Added a minimal test of ref-sharing as an example. More tests will follow.

--- a/rust/hg-cpython/src/lib.rs	Sat Oct 05 10:21:34 2019 -0400
+++ b/rust/hg-cpython/src/lib.rs	Mon Oct 14 16:15:19 2019 +0900
@@ -72,3 +72,10 @@
     )?;
     Ok(())
 });
+
+#[cfg(not(any(feature = "python27-bin", feature = "python3-bin")))]
+#[test]
+#[ignore]
+fn libpython_must_be_linked_to_run_tests() {
+    // stub function to tell that some tests wouldn't run
+}