move contents of taskchampion repo to tc/

rust/integration-tests/tests/bindings.rs

@@ -0,0 +1,31 @@
+use lazy_static::lazy_static;
+use std::sync::Mutex;
+use tempfile::TempDir;
+
+lazy_static! {
+    // the C library running the tests is not reentrant, so we use a mutex to ensure that only one
+    // test runs at a time.
+    static ref MUTEX: Mutex<()> = Mutex::new(());
+}
+
+macro_rules! suite(
+    { $s:ident } => {
+    #[test]
+    fn $s() {
+        let tmp_dir = TempDir::new().expect("TempDir failed");
+        let (res, output) = {
+            let _guard = MUTEX.lock().unwrap();
+            // run the tests in the temp dir (NOTE: this must be inside
+            // the mutex guard!)
+            std::env::set_current_dir(tmp_dir.as_ref()).unwrap();
+            integration_tests::bindings_tests::$s()
+        };
+        println!("{}", output);
+        if res != 0 {
+            assert!(false, "test failed");
+        }
+    }
+    };
+);
+
+include!(concat!(env!("OUT_DIR"), "/bindings_test_suites.rs"));