test bindings in an integration-tests crate

integration-tests/src/bindings_tests/mod.rs

@@ -0,0 +1,20 @@
+// Each suite is represented by a <name>_tests C function in <name>.c.
+// All of these C files are built into a library that is linked to the crate -- but not to test
+// crates.  So, this macro produces a "glue function" that calls the C function, and that can be
+// called from test crates.
+macro_rules! suite(
+    { $s:ident } => {
+    pub fn $s() -> i32 {
+        extern "C" {
+            fn $s() -> i32;
+        }
+        unsafe { $s() }
+    }
+    };
+);
+
+// keep this list in sync with integration-tests/build.rs and integration-tests/tests/bindings.rs.
+suite!(uuid_tests);
+suite!(string_tests);
+suite!(task_tests);
+suite!(replica_tests);