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import os
import pytest
from flask import url_for
pytestmark = pytest.mark.skipif(not hasattr(os, "fork"), reason="needs fork")
class TestLiveServer:
def test_init(self, live_server):
assert live_server.port
assert live_server.host == "localhost"
assert live_server.url() == "http://localhost:{0}".format(live_server.port)
def test_server_is_alive(self, live_server):
assert live_server._process
assert live_server._process.is_alive()
def test_server_listening(self, client, live_server):
res = client.get(url_for("ping", _external=True))
assert res.status_code == 200
assert b"pong" in res.data
def test_url_for(self, live_server):
assert (
url_for("ping", _external=True)
== "http://localhost.localdomain:%s/ping" % live_server.port
)
def test_set_application_server_name(self, live_server):
assert (
live_server.app.config["SERVER_NAME"]
== "localhost.localdomain:%d" % live_server.port
)
def test_rewrite_application_server_name(self, appdir):
appdir.create_test_module(
"""
import pytest
@pytest.mark.options(server_name='example.com:5000')
def test_a(live_server):
assert live_server.app.config['SERVER_NAME'] == \\
'example.com:%d' % live_server.port
"""
)
result = appdir.runpytest("-v", "-o", "live_server_scope=function")
result.stdout.fnmatch_lines(["*PASSED*"])
assert result.ret == 0
def test_prevent_starting_live_server(self, appdir):
appdir.create_test_module(
"""
import pytest
def test_a(live_server):
assert live_server._process is None
"""
)
result = appdir.runpytest("-v", "--no-start-live-server")
result.stdout.fnmatch_lines(["*passed*"])
assert result.ret == 0
def test_start_live_server(self, appdir):
appdir.create_test_module(
"""
import pytest
def test_a(live_server):
assert live_server._process
assert live_server._process.is_alive()
"""
)
result = appdir.runpytest("-v", "--start-live-server")
result.stdout.fnmatch_lines(["*passed*"])
assert result.ret == 0
def test_stop_cleanly_join_exception(self, appdir, live_server, caplog):
# timeout = 'a' here to force an exception when
# attempting to self._process.join()
assert not live_server._stop_cleanly(timeout="a")
assert "Failed to join" in caplog.text
@pytest.mark.parametrize("clean_stop", [True, False])
def test_clean_stop_live_server(self, appdir, monkeypatch, clean_stop):
"""Ensure the fixture is trying to cleanly stop the server.
Because this is tricky to test, we are checking that the
_stop_cleanly() internal function was called and reported success.
"""
from pytest_flask.fixtures import LiveServer
original_stop_cleanly_func = LiveServer._stop_cleanly
stop_cleanly_result = []
def mocked_stop_cleanly(*args, **kwargs):
result = original_stop_cleanly_func(*args, **kwargs)
stop_cleanly_result.append(result)
return result
monkeypatch.setattr(LiveServer, "_stop_cleanly", mocked_stop_cleanly)
appdir.create_test_module(
"""
import pytest
from flask import url_for
def test_a(live_server, client):
@live_server.app.route('/')
def index():
return 'got it', 200
live_server.start()
res = client.get(url_for('index', _external=True))
assert res.status_code == 200
assert b'got it' in res.data
"""
)
args = [] if clean_stop else ["--no-live-server-clean-stop"]
result = appdir.runpytest_inprocess("-v", "--no-start-live-server", *args)
result.stdout.fnmatch_lines("*1 passed*")
if clean_stop:
assert stop_cleanly_result == [True]
else:
assert stop_cleanly_result == []
def test_add_endpoint_to_live_server(self, appdir):
appdir.create_test_module(
"""
import pytest
from flask import url_for
def test_a(live_server, client):
@live_server.app.route('/new-endpoint')
def new_endpoint():
return 'got it', 200
live_server.start()
res = client.get(url_for('new_endpoint', _external=True))
assert res.status_code == 200
assert b'got it' in res.data
"""
)
result = appdir.runpytest("-v", "--no-start-live-server")
result.stdout.fnmatch_lines(["*passed*"])
assert result.ret == 0
@pytest.mark.skip("this test hangs in the original code")
def test_concurrent_requests_to_live_server(self, appdir):
appdir.create_test_module(
"""
import pytest
from flask import url_for
def test_concurrent_requests(live_server, client):
@live_server.app.route('/one')
def one():
res = client.get(url_for('two', _external=True))
return res.data
@live_server.app.route('/two')
def two():
return '42'
live_server.start()
res = client.get(url_for('one', _external=True))
assert res.status_code == 200
assert b'42' in res.data
"""
)
result = appdir.runpytest("-v", "--no-start-live-server")
result.stdout.fnmatch_lines(["*passed*"])
assert result.ret == 0
@pytest.mark.parametrize("port", [5000, 5001])
def test_live_server_fixed_port(self, port, appdir):
appdir.create_test_module(
"""
import pytest
def test_port(live_server):
assert live_server.port == %d
"""
% port
)
result = appdir.runpytest("-v", "--live-server-port", str(port))
result.stdout.fnmatch_lines(["*PASSED*"])
assert result.ret == 0
@pytest.mark.parametrize("host", ["127.0.0.1", "0.0.0.0"])
def test_live_server_fixed_host(self, host, appdir):
appdir.create_test_module(
"""
import pytest
def test_port(live_server):
assert live_server.host == '%s'
"""
% host
)
result = appdir.runpytest("-v", "--live-server-host", str(host))
result.stdout.fnmatch_lines(["*PASSED*"])
assert result.ret == 0
def test_respect_wait_timeout(self, appdir):
appdir.create_test_module(
"""
import pytest
def test_should_fail(live_server):
assert live_server._process.is_alive()
"""
)
result = appdir.runpytest("-v", "--live-server-wait=0.00000001")
result.stdout.fnmatch_lines(["**ERROR**"])
assert result.ret == 1
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