完善采购审批流程、企业微信通知和采购专用章

tests/conftest.py

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+import importlib
+import os
+import sys
+from pathlib import Path
+
+import pytest
+from werkzeug.security import generate_password_hash
+
+ROOT = Path(__file__).resolve().parents[1]
+sys.path.insert(0, str(ROOT / 'po_app'))
+PASSWORD = 'Test-only-Password-2026'
+
+
+@pytest.fixture(scope='session')
+def module(tmp_path_factory):
+    os.environ['PO_DATA_DIR'] = str(tmp_path_factory.mktemp('po-data'))
+    os.environ.pop('PO_SECRET_KEY', None)
+    result = importlib.import_module('app')
+    result.app.config['TESTING'] = True
+    yield result
+    result.engine.dispose()
+
+
+@pytest.fixture
+def app(module):
+    from models import Base
+    Base.metadata.drop_all(module.engine)
+    Base.metadata.create_all(module.engine)
+    hashed = generate_password_hash(PASSWORD)
+    with module.Session() as db:
+        for name, role in [('admin', 'admin'), ('maker', 'maker'), ('other', 'maker'),
+                           ('reviewer', 'approver'), ('approver', 'approver')]:
+            db.add(module.User(username=name, name=name, role=role, active=True,
+                               session_version=1, must_change_password=False, password_hash=hashed))
+        db.commit()
+    return module
+
+
+def post(client, path, data=None, **kwargs):
+    with client.session_transaction() as sess:
+        token = sess.get('csrf_token')
+    if not token:
+        client.get('/login')
+        with client.session_transaction() as sess:
+            token = sess['csrf_token']
+    if data is None:
+        data = {}
+    data = data.copy()
+    data['csrf_token'] = token
+    return client.post(path, data=data, **kwargs)
+
+
+def login(app, name):
+    client = app.app.test_client()
+    client.get('/login')
+    response = post(client, '/login', {'username': name, 'password': PASSWORD})
+    assert response.status_code == 302
+    client.get(response.location)
+    return client
+
+
+@pytest.fixture
+def clients(app):
+    return {name: login(app, name) for name in ('admin', 'maker', 'other', 'reviewer', 'approver')}