diff --git a/tests/test_framework/blockchain_node.py b/tests/test_framework/blockchain_node.py
index 09cf50c..be4674a 100644
--- a/tests/test_framework/blockchain_node.py
+++ b/tests/test_framework/blockchain_node.py
@@ -44,6 +44,7 @@ class TestNode:
     def __init__(
         self, node_type, index, data_dir, rpc_url, binary, config, log, rpc_timeout=10
     ):
+        assert os.path.exists(binary), ("blockchain binary not found: %s" % binary)
         self.node_type = node_type
         self.index = index
         self.data_dir = data_dir
diff --git a/tests/test_framework/test_framework.py b/tests/test_framework/test_framework.py
index ce11066..2985e3f 100644
--- a/tests/test_framework/test_framework.py
+++ b/tests/test_framework/test_framework.py
@@ -309,7 +309,9 @@ class TestFramework:
         ionion_node_rpc_url,
         file_to_upload,
     ):
-        assert os.path.exists(self.cli_binary), "%s should be exist" % self.cli_binary
+        assert os.path.exists(self.cli_binary), (
+            "zgs CLI binary not found: %s" % self.cli_binary
+        )
         upload_args = [
             self.cli_binary,
             "upload",
@@ -417,15 +419,6 @@ class TestFramework:
         self.token_contract_path = os.path.abspath(self.options.token_contract)
         self.mine_contract_path = os.path.abspath(self.options.mine_contract)
 
-        assert os.path.exists(self.blockchain_binary), (
-            "blockchain binary not found: %s" % self.blockchain_binary
-        )
-        assert os.path.exists(self.zgs_binary), (
-            "zgs binary not found: %s" % self.zgs_binary
-        )
-        assert os.path.exists(self.cli_binary), (
-            "zgs CLI binary not found: %s" % self.cli_binary
-        )
         assert os.path.exists(self.contract_path), (
             "%s should be exist" % self.contract_path
         )