fix example return code (#7)

Author: samuelcolvin

mcp_run_python/deno/src/main.ts

@@ -286,6 +286,9 @@ a
   )
   console.log('Tool return value:')
   console.log(asXml(result))
+  if (result.status !== 'success') {
+    Deno.exit(1)
+  }
 }
 
 // list of log levels to use for level comparison

tests/test_cli.py

@@ -0,0 +1,19 @@
+from __future__ import annotations as _annotations
+
+import pytest
+
+from mcp_run_python._cli import cli_logic
+
+
+def test_cli_version(capsys: pytest.CaptureFixture[str]):
+    assert cli_logic(['--version']) == 0
+    captured = capsys.readouterr()
+    assert captured.out.startswith('mcp-run-python ')
+
+
+def test_cli_example_success():
+    assert cli_logic(['--deps', 'numpy', 'example']) == 0
+
+
+def test_cli_example_fail():
+    assert cli_logic(['example']) == 1

tests/test_mcp_servers.py

@@ -15,7 +15,6 @@
 from mcp.client.streamable_http import streamablehttp_client
 
 from mcp_run_python import async_prepare_deno_env
-from mcp_run_python._cli import cli_logic
 
 if TYPE_CHECKING:
     from mcp import ClientSession
@@ -213,13 +212,3 @@ def logging_callback(level: str, message: str) -> None:
 </return_value>\
 """
                 )
-
-
-def test_cli_version(capsys: pytest.CaptureFixture[str]):
-    assert cli_logic(['--version']) == 0
-    captured = capsys.readouterr()
-    assert captured.out.startswith('mcp-run-python ')
-
-
-def test_cli_example():
-    assert cli_logic(['--deps', 'numpy', 'example']) == 0