add a rocksdb setup sanity check

test_rocksdb.py

@@ -0,0 +1,47 @@
+#! python
+
+import os
+import shutil
+import rocksdb
+import tempfile
+import logging
+
+log = logging.getLogger()
+log.addHandler(logging.StreamHandler())
+log.setLevel(logging.INFO)
+
+def _main(db_loc):
+    opts = rocksdb.Options(create_if_missing=True)
+    db = rocksdb.DB(os.path.join(db_loc, "test"), opts)
+    secondary_location = os.path.join(db_loc, "secondary")
+    secondary = rocksdb.DB(
+        os.path.join(db_loc, "test"),
+        rocksdb.Options(create_if_missing=True, max_open_files=-1),
+        secondary_name=secondary_location
+    )
+    try:
+        assert secondary.get(b"a") is None
+        db.put(b"a", b"b")
+        assert db.get(b"a") == b"b"
+        assert secondary.get(b"a") is None
+
+        secondary.try_catch_up_with_primary()
+        assert secondary.get(b"a") == b"b"
+    finally:
+        secondary.close()
+        db.close()
+
+
+def main():
+    db_dir = tempfile.mkdtemp()
+    try:
+        _main(db_dir)
+        log.info("rocksdb %s (%s) works!", rocksdb.__version__, rocksdb.ROCKSDB_VERSION)
+    except:
+        log.exception("boom")
+    finally:
+        shutil.rmtree(db_dir)
+
+
+if __name__ == "__main__":
+    main()