"""
A group name is checked where it is created.

The column is 128 characters wide: a longer name was a database error on
PostgreSQL and a silent truncation on SQLite. And the name is shown to other
people — in their group list, in the invitation mail — so it carries no line
breaks or other control characters, and no bidirectional override that makes it
display as something other than what it is.
"""

import pytest
from test_bundle_pepper import _login, _register


@pytest.mark.asyncio
@pytest.mark.parametrize("name,ok", [
    ("Photos de famille", True),
    ("x" * 128, True),
    ("👨‍👩‍👧 Family", True),          # a ZWJ sequence is a name, not a trick
    ("x" * 129, False),
    ("Films\nClick here", False),
    ("tab\there", False),
    ("evil‮gpj.exe", False),
    ("   ", False),
])
async def test_a_group_name(client, name, ok):
    await _register(client, "group_namer")
    token = (await _login(client, "group_namer"))["access_token"]
    r = await client.post("/v1/groups", json={"name": name},
                          headers={"Authorization": f"Bearer {token}"})
    assert (r.status_code < 300) is ok, (name, r.status_code, r.text)
    if not ok:
        assert r.status_code == 422