Add core config to disable browser environment (#9570)

tests/runtime/conftest.py

@@ -212,6 +212,7 @@ def _load_runtime(
     runtime_startup_env_vars: dict[str, str] | None = None,
     docker_runtime_kwargs: dict[str, str] | None = None,
     override_mcp_config: MCPConfig | None = None,
+    enable_browser: bool = True,
 ) -> tuple[Runtime, OpenHandsConfig]:
     sid = 'rt_' + str(random.randint(100000, 999999))
 
@@ -221,6 +222,7 @@ def _load_runtime(
 
     config = load_openhands_config()
     config.run_as_openhands = run_as_openhands
+    config.enable_browser = enable_browser
     config.sandbox.force_rebuild_runtime = force_rebuild_runtime
     config.sandbox.keep_runtime_alive = False
     config.sandbox.docker_runtime_kwargs = docker_runtime_kwargs

tests/runtime/test_browsing.py

@@ -15,6 +15,7 @@ from openhands.events.action import (
 from openhands.events.observation import (
     BrowserOutputObservation,
     CmdOutputObservation,
+    ErrorObservation,
     FileDownloadObservation,
 )
 
@@ -122,6 +123,26 @@ def find_element_by_tag_and_attributes(
     return None
 
 
+def test_browser_disabled(temp_dir, runtime_cls, run_as_openhands):
+    runtime, _ = _load_runtime(
+        temp_dir, runtime_cls, run_as_openhands, enable_browser=False
+    )
+
+    action_cmd = CmdRunAction(command='python3 -m http.server 8000 > server.log 2>&1 &')
+    logger.info(action_cmd, extra={'msg_type': 'ACTION'})
+    obs = runtime.run_action(action_cmd)
+    logger.info(obs, extra={'msg_type': 'OBSERVATION'})
+
+    action_browse = BrowseURLAction(url='http://localhost:8000', return_axtree=False)
+    logger.info(action_browse, extra={'msg_type': 'ACTION'})
+    obs = runtime.run_action(action_browse)
+    logger.info(obs, extra={'msg_type': 'OBSERVATION'})
+    assert isinstance(obs, ErrorObservation)
+    assert 'Browser functionality is not supported or disabled' in obs.content
+
+    _close_test_runtime(runtime)
+
+
 def test_simple_browse(temp_dir, runtime_cls, run_as_openhands):
     runtime, config = _load_runtime(temp_dir, runtime_cls, run_as_openhands)