"""Where Simulate sale's fields land, measured in a real browser.
Reported from the first try: a USD holding's brokerage box sat further left
than an AUD holding's, pushed over by the currency code beside it, so the
column of boxes was ragged. No markup test can see that.
"""
from __future__ import annotations
import json
import re
import subprocess
import sys
from pathlib import Path
import pytest
from freezegun import freeze_time
import factories as fac
from test_routes import bind_to_only_portfolio, make_login
ROOT = Path(__file__).resolve().parent.parent
sys.path.insert(0, str(ROOT))
from tools.browser import find_chrome # noqa: E402
pytestmark = pytest.mark.visual
CHROME = find_chrome()
if CHROME is None:
pytest.skip("no headless Chrome on this machine", allow_module_level=True)
HTML = {"accept": "text/html"}
STATIC = ROOT / "app" / "static"
MEASURE = """
"""
# An iframe of the wanted width, as test_dashboard_header_in_the_browser.py does:
# headless Chrome will not make a window narrower than 500px.
WRAPPER = """
"""
def _standalone(page: str) -> str:
page = re.sub(r'', "", page)
page = re.sub(r']*>',
lambda _m: "", page)
return page.replace("", MEASURE + "")
@pytest.fixture
def two_currencies(client, session_factory, tmp_path):
make_login(client, session_factory)
with session_factory() as s:
bind_to_only_portfolio(s)
alpha = fac.make_instrument(s, "ALPHA", asset_class="share")
fac.add_trade(s, alpha, "2025-01-06", "buy", 5, "8.00", brokerage="9.50")
fac.add_prices(s, alpha, [("2026-10-16", "8.32")])
nova = fac.make_instrument(s, "NOVA", exchange="NASDAQ", currency="USD")
fac.add_trade(s, nova, "2025-01-06", "buy", 15, "500.00", brokerage="15",
fx_rate="1.50")
fac.add_prices(s, nova, [("2026-10-16", "529.05")])
fac.add_fx(s, "USDAUD", "2026-10-16", "1.44")
s.commit()
ids = alpha.id, nova.id
with freeze_time("2026-10-17"):
page = client.get(f"/simulate?rate=45&units_{ids[0]}=5&units_{ids[1]}=15", headers=HTML)
assert page.status_code == 200
(tmp_path / "page.html").write_text(_standalone(page.text), encoding="utf-8")
return tmp_path
def _measure(folder: Path, width: int) -> dict:
(folder / "wrapper.html").write_text(WRAPPER % ("page.html", width), encoding="utf-8")
dom = subprocess.run(
[CHROME, "--headless", "--disable-gpu", "--dump-dom", "--no-sandbox",
"--allow-file-access-from-files", f"--window-size={max(width + 80, 620)},960",
"--virtual-time-budget=6000", (folder / "wrapper.html").as_uri()],
capture_output=True, text=True, timeout=90).stdout
found = re.search(r"