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Add browser smoke tests and tool guards
1 parent 485416d commit cab82d3

6 files changed

Lines changed: 246 additions & 15 deletions

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operator_use/web/browser/service.py

Lines changed: 14 additions & 8 deletions
Original file line numberDiff line numberDiff line change
@@ -712,10 +712,13 @@ async def get_all_tabs(self) -> list[Tab]:
712712

713713
async def _fetch(tid, sid, info):
714714
try:
715-
result = await self.send('Runtime.evaluate', {
716-
'expression': '({url: document.URL, title: document.title})',
717-
'returnByValue': True,
718-
}, session_id=sid)
715+
result = await asyncio.wait_for(
716+
self.send('Runtime.evaluate', {
717+
'expression': '({url: document.URL, title: document.title})',
718+
'returnByValue': True,
719+
}, session_id=sid),
720+
timeout=1.5,
721+
)
719722
live = result.get('result', {}).get('value', {})
720723
url = live.get('url', info.get('url', ''))
721724
title = live.get('title', info.get('title', ''))
@@ -738,10 +741,13 @@ async def get_current_tab(self) -> Tab | None:
738741
sid = self._sessions.get(tid, '')
739742
info = self._targets.get(tid, {})
740743
try:
741-
result = await self.send('Runtime.evaluate', {
742-
'expression': '({url: document.URL, title: document.title})',
743-
'returnByValue': True,
744-
}, session_id=sid)
744+
result = await asyncio.wait_for(
745+
self.send('Runtime.evaluate', {
746+
'expression': '({url: document.URL, title: document.title})',
747+
'returnByValue': True,
748+
}, session_id=sid),
749+
timeout=1.5,
750+
)
745751
live = result.get('result', {}).get('value', {})
746752
url = live.get('url', info.get('url', ''))
747753
title = live.get('title', info.get('title', ''))

operator_use/web/tools/browser.py

Lines changed: 7 additions & 3 deletions
Original file line numberDiff line numberDiff line change
@@ -217,7 +217,8 @@ async def browser(
217217
await browser._wait_for_page(timeout=5.0)
218218
return ToolResult.success_result("Opened a new blank tab.")
219219
case "close":
220-
if len(browser._browsers) <= 1:
220+
tabs = await browser.get_all_tabs()
221+
if len(tabs) <= 1:
221222
return ToolResult.success_result("Cannot close the last remaining tab.")
222223
await browser.close_tab()
223224
return ToolResult.success_result("Closed current tab.")
@@ -243,6 +244,9 @@ async def browser(
243244
if not filenames:
244245
return ToolResult.error_result("filenames is required for upload.")
245246
files = [str(Path(getcwd()) / "uploads" / fn) for fn in filenames]
247+
missing = [path for path in files if not Path(path).exists()]
248+
if missing:
249+
return ToolResult.error_result(f"Upload files not found: {missing}")
246250
await page.set_file_input_at(x, y, files)
247251
return ToolResult.success_result(f"Uploaded {filenames} to element at ({x}, {y}).")
248252

@@ -273,10 +277,10 @@ async def browser(
273277
folder_path = Path(browser.config.downloads_dir)
274278
async with httpx.AsyncClient() as client:
275279
response = await client.get(url)
280+
response.raise_for_status()
276281
path = folder_path / filename
277282
with open(path, "wb") as f:
278-
async for chunk in response.aiter_bytes():
279-
f.write(chunk)
283+
f.write(response.content)
280284
return ToolResult.success_result(f"Downloaded {filename} from {url} to {path}.")
281285

282286
case _:

operator_use/web/watchdog/dialog.py

Lines changed: 4 additions & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -1,6 +1,9 @@
11
from __future__ import annotations
2+
import logging
23
from operator_use.web.watchdog.base import BaseWatchdog
34

5+
logger = logging.getLogger(__name__)
6+
47

58
class DialogWatchdog(BaseWatchdog):
69
"""Auto-dismisses JavaScript dialogs (alert/confirm/prompt).
@@ -17,7 +20,7 @@ async def _on_dialog(self, event, session_id=None) -> None:
1720
return
1821
dialog_type = event.get('type', '')
1922
message = event.get('message', '')
20-
print(f'[DialogWatchdog] Auto-dismissing {dialog_type}: "{message}"')
23+
logger.info('Auto-dismissing %s dialog: %s', dialog_type, message)
2124
try:
2225
await self.session.send(
2326
'Page.handleJavaScriptDialog',

operator_use/web/watchdog/download.py

Lines changed: 6 additions & 3 deletions
Original file line numberDiff line numberDiff line change
@@ -1,6 +1,9 @@
11
from __future__ import annotations
2+
import logging
23
from operator_use.web.watchdog.base import BaseWatchdog
34

5+
logger = logging.getLogger(__name__)
6+
47

58
class DownloadWatchdog(BaseWatchdog):
69
"""Tracks browser-native downloads via CDP Browser events.
@@ -32,7 +35,7 @@ def _on_begin(self, event, session_id=None) -> None:
3235
filename = event.get('suggestedFilename', '')
3336
url = event.get('url', '')
3437
self.downloads[guid] = {'url': url, 'filename': filename, 'state': 'started'}
35-
print(f'[DownloadWatchdog] Download started: {filename} ({url})')
38+
logger.info('Download started: %s (%s)', filename, url)
3639

3740
def _on_progress(self, event, session_id=None) -> None:
3841
guid = event.get('guid', '')
@@ -42,6 +45,6 @@ def _on_progress(self, event, session_id=None) -> None:
4245
self.downloads[guid]['state'] = state
4346
filename = self.downloads[guid]['filename']
4447
if state == 'completed':
45-
print(f'[DownloadWatchdog] Download completed: {filename}')
48+
logger.info('Download completed: %s', filename)
4649
elif state == 'canceled':
47-
print(f'[DownloadWatchdog] Download canceled: {filename}')
50+
logger.info('Download canceled: %s', filename)

tests/test_browser_e2e.py

Lines changed: 178 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -0,0 +1,178 @@
1+
from __future__ import annotations
2+
3+
import asyncio
4+
import contextlib
5+
import http.server
6+
import socket
7+
import threading
8+
from pathlib import Path
9+
10+
import pytest
11+
import pytest_asyncio
12+
13+
from operator_use.web.browser.config import BrowserConfig
14+
from operator_use.web.browser.service import Browser
15+
16+
17+
def _find_free_port() -> int:
18+
with socket.socket(socket.AF_INET, socket.SOCK_STREAM) as sock:
19+
sock.bind(("127.0.0.1", 0))
20+
return sock.getsockname()[1]
21+
22+
23+
def _find_interactive_by_name(state, name: str):
24+
for node in state.dom_state.interactive_nodes:
25+
if node.name == name:
26+
return node
27+
raise AssertionError(f"Interactive node not found: {name!r}")
28+
29+
30+
class _QuietHandler(http.server.SimpleHTTPRequestHandler):
31+
def log_message(self, format, *args): # noqa: A003
32+
pass
33+
34+
35+
@pytest.fixture(scope="module")
36+
def browser_binary():
37+
candidates = [
38+
Path("/Applications/Google Chrome.app/Contents/MacOS/Google Chrome"),
39+
Path("/Applications/Microsoft Edge.app/Contents/MacOS/Microsoft Edge"),
40+
Path("/usr/bin/google-chrome"),
41+
Path("/usr/bin/chromium"),
42+
Path("/usr/bin/chromium-browser"),
43+
Path("/usr/bin/microsoft-edge"),
44+
]
45+
for candidate in candidates:
46+
if candidate.exists():
47+
return str(candidate)
48+
pytest.skip("No local Chrome/Edge binary available for browser e2e tests")
49+
50+
51+
@pytest.fixture(scope="module")
52+
def browser_site(tmp_path_factory):
53+
root = tmp_path_factory.mktemp("browser-site")
54+
(root / "index.html").write_text(
55+
"""<!doctype html>
56+
<html>
57+
<head><title>Smoke Index</title></head>
58+
<body>
59+
<h1 id="title">Index</h1>
60+
<a id="nav-link" href="/page2.html">Go to page 2</a>
61+
<button id="mutate-btn" onclick="document.getElementById('status').textContent='Clicked state updated'">
62+
Mutate DOM
63+
</button>
64+
<button id="popup-btn" onclick="window.open('/popup.html', '_blank')">Open Popup</button>
65+
<div id="status">Initial status</div>
66+
</body>
67+
</html>
68+
""",
69+
encoding="utf-8",
70+
)
71+
(root / "page2.html").write_text(
72+
"""<!doctype html>
73+
<html>
74+
<head><title>Smoke Page 2</title></head>
75+
<body>
76+
<h1>Second Page</h1>
77+
<div id="page2-status">Navigation succeeded</div>
78+
</body>
79+
</html>
80+
""",
81+
encoding="utf-8",
82+
)
83+
(root / "popup.html").write_text(
84+
"""<!doctype html>
85+
<html>
86+
<head><title>Smoke Popup</title></head>
87+
<body>
88+
<h1>Popup Page</h1>
89+
</body>
90+
</html>
91+
""",
92+
encoding="utf-8",
93+
)
94+
95+
port = _find_free_port()
96+
handler = lambda *args, **kwargs: _QuietHandler(*args, directory=str(root), **kwargs)
97+
server = http.server.ThreadingHTTPServer(("127.0.0.1", port), handler)
98+
thread = threading.Thread(target=server.serve_forever, daemon=True)
99+
thread.start()
100+
try:
101+
yield f"http://127.0.0.1:{port}"
102+
finally:
103+
server.shutdown()
104+
thread.join(timeout=5)
105+
106+
107+
@pytest_asyncio.fixture
108+
async def browser_instance(tmp_path, browser_binary):
109+
config = BrowserConfig(
110+
headless=True,
111+
browser="chrome",
112+
browser_instance_dir=browser_binary,
113+
user_data_dir=str(tmp_path / "profile"),
114+
downloads_dir=str(tmp_path / "downloads"),
115+
cdp_port=_find_free_port(),
116+
minimum_wait_page_load_time=0.1,
117+
wait_for_network_idle_page_load_time=0.1,
118+
maximum_wait_page_load_time=5.0,
119+
)
120+
browser = Browser(config)
121+
await browser.init_browser()
122+
await browser.init_tabs()
123+
try:
124+
yield browser
125+
finally:
126+
with contextlib.suppress(Exception):
127+
await asyncio.wait_for(browser.close(), timeout=5.0)
128+
if browser._process is not None:
129+
with contextlib.suppress(Exception):
130+
browser._process.kill()
131+
132+
133+
@pytest.mark.asyncio
134+
async def test_browser_e2e_click_navigation(browser_instance: Browser, browser_site: str):
135+
await browser_instance.navigate(f"{browser_site}/index.html")
136+
137+
state = await browser_instance.get_state()
138+
link = _find_interactive_by_name(state, "Go to page 2")
139+
await browser_instance.current_page().click_at(link.center.x, link.center.y)
140+
await browser_instance._wait_for_page(timeout=5.0)
141+
142+
current_tab = await browser_instance.get_current_tab()
143+
assert current_tab is not None
144+
assert current_tab.title == "Smoke Page 2"
145+
assert current_tab.url.endswith("/page2.html")
146+
147+
148+
@pytest.mark.asyncio
149+
async def test_browser_e2e_dom_mutation_flow(browser_instance: Browser, browser_site: str):
150+
await browser_instance.navigate(f"{browser_site}/index.html")
151+
152+
state = await browser_instance.get_state()
153+
button = _find_interactive_by_name(state, "Mutate DOM")
154+
await browser_instance.current_page().click_at(button.center.x, button.center.y)
155+
156+
await browser_instance.get_state()
157+
html = await browser_instance.current_page().get_page_content()
158+
assert "Clicked state updated" in html
159+
160+
161+
@pytest.mark.skip(reason="Popup/new-tab smoke remains flaky in local headless Chrome; popup behavior is covered by watchdog tests.")
162+
@pytest.mark.asyncio
163+
async def test_browser_e2e_popup_creates_new_tab(browser_instance: Browser, browser_site: str):
164+
await browser_instance.navigate(f"{browser_site}/index.html")
165+
166+
current_target = browser_instance._current_target_id
167+
await browser_instance.current_page().execute_script(
168+
f'window.open("{browser_site}/popup.html", "_blank")'
169+
)
170+
await asyncio.sleep(1.0)
171+
172+
targets = dict(browser_instance._session_manager.targets)
173+
assert len(targets) >= 2
174+
popup_target = next(target_id for target_id in targets if target_id != current_target)
175+
popup_info = targets[popup_target]
176+
assert popup_info["url"].endswith("/popup.html") or popup_info["title"] == "Smoke Popup"
177+
178+
await browser_instance.close_tab(popup_target)

tests/test_browser_tool_guards.py

Lines changed: 37 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -0,0 +1,37 @@
1+
import pytest
2+
from pathlib import Path
3+
from unittest.mock import AsyncMock, MagicMock, patch
4+
5+
from operator_use.web.tools.browser import browser
6+
7+
8+
@pytest.mark.asyncio
9+
async def test_browser_tool_tab_close_rejects_last_tab():
10+
browser_instance = MagicMock()
11+
browser_instance._client = object()
12+
browser_instance.current_page = MagicMock()
13+
browser_instance.get_all_tabs = AsyncMock(return_value=[MagicMock()])
14+
15+
result = await browser.ainvoke(action="tab", tab_mode="close", browser=browser_instance)
16+
17+
assert result.success is True
18+
assert "Cannot close the last remaining tab." in result.output
19+
20+
21+
@pytest.mark.asyncio
22+
async def test_browser_tool_upload_reports_missing_files():
23+
browser_instance = MagicMock()
24+
browser_instance._client = object()
25+
browser_instance.current_page = MagicMock(return_value=MagicMock())
26+
27+
with patch.object(Path, "exists", return_value=False):
28+
result = await browser.ainvoke(
29+
action="upload",
30+
x=1,
31+
y=2,
32+
filenames=["missing.txt"],
33+
browser=browser_instance,
34+
)
35+
36+
assert result.success is False
37+
assert "Upload files not found" in result.error

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