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import pytest
from ninja import NinjaAPI, Router
from ninja.errors import ConfigError
def test_api_instance():
"""Test that operations are properly bound to API via bound routers."""
api = NinjaAPI(urls_namespace="api-instance-test")
router = Router()
@api.get("/global")
def global_op(request):
pass
@router.get("/router")
def router_op(request):
pass
api.add_router("/", router)
# Access URLs to trigger binding
_ = api.urls
# Check via bound routers (the new architecture)
bound_routers = api._get_bound_routers()
assert len(bound_routers) == 2 # default + extra
for bound_router in bound_routers:
for path_ops in bound_router.path_operations.values():
for op in path_ops.operations:
assert op.api is api
def test_reuse_router_requires_url_name_prefix():
"""Mounting same router twice requires url_name_prefix."""
test_api = NinjaAPI(urls_namespace="reuse-test")
test_router = Router()
@test_router.get("/test")
def test_op(request):
pass
test_api.add_router("/", test_router)
# Same router mounted again without url_name_prefix should raise
match = "Router is already mounted"
with pytest.raises(ConfigError, match=match):
test_api.add_router("/another-path", test_router)
def test_reuse_router_with_url_name_prefix():
"""Same router can be mounted multiple times with different url_name_prefix."""
test_api = NinjaAPI(urls_namespace="reuse-prefix-test")
test_router = Router()
@test_router.get("/test")
def test_op(request):
pass
test_api.add_router("/v1", test_router, url_name_prefix="v1")
test_api.add_router("/v2", test_router, url_name_prefix="v2")
# Should work - verify URLs are generated
_ = test_api.urls
# Both mounts should work
bound_routers = test_api._get_bound_routers()
# default router + 2 mounts of test_router
assert len(bound_routers) == 3
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