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diff --git a/crocoite/test_controller.py b/crocoite/test_controller.py
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+# Copyright (c) 2017–2018 crocoite contributors
+# 
+# Permission is hereby granted, free of charge, to any person obtaining a copy
+# of this software and associated documentation files (the "Software"), to deal
+# in the Software without restriction, including without limitation the rights
+# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+# copies of the Software, and to permit persons to whom the Software is
+# furnished to do so, subject to the following conditions:
+# 
+# The above copyright notice and this permission notice shall be included in
+# all copies or substantial portions of the Software.
+# 
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+# THE SOFTWARE.
+
+import asyncio
+
+from yarl import URL
+from aiohttp import web
+
+import pytest
+
+from .logger import Logger
+from .controller import ControllerSettings, SinglePageController, SetEntry, \
+        IdleStateTracker
+from .browser import PageIdle
+from .devtools import Process
+from .test_browser import loader
+
+@pytest.mark.asyncio
+async def test_controller_timeout ():
+    """ Make sure the controller terminates, even if the site keeps reloading/fetching stuff """
+
+    async def f (req):
+        return web.Response (body="""<html>
+<body>
+<p>hello</p>
+<script>
+window.setTimeout (function () { window.location = '/' }, 250);
+window.setInterval (function () { fetch('/').then (function (e) { console.log (e) }) }, 150);
+</script>
+</body>
+</html>""", status=200, content_type='text/html', charset='utf-8')
+
+    url = URL.build (scheme='http', host='localhost', port=8080)
+    app = web.Application ()
+    app.router.add_route ('GET', '/', f)
+    runner = web.AppRunner(app)
+    await runner.setup()
+    site = web.TCPSite(runner, url.host, url.port)
+    await site.start()
+
+    loop = asyncio.get_event_loop ()
+    try:
+        logger = Logger ()
+        settings = ControllerSettings (idleTimeout=1, timeout=5)
+        controller = SinglePageController (url=url, logger=logger,
+                service=Process (), behavior=[], settings=settings)
+        # give the controller a little more time to finish, since there are
+        # hard-coded asyncio.sleep calls in there right now.
+        # XXX fix this
+        before = loop.time ()
+        await asyncio.wait_for (controller.run (), timeout=settings.timeout*2)
+        after = loop.time ()
+        assert after-before >= settings.timeout, (settings.timeout*2, after-before)
+    finally:
+        # give the browser some time to close before interrupting the
+        # connection by destroying the HTTP server
+        await asyncio.sleep (1)
+        await runner.cleanup ()
+
+@pytest.mark.asyncio
+async def test_controller_idle_timeout ():
+    """ Make sure the controller terminates, even if the site keeps reloading/fetching stuff """
+
+    async def f (req):
+        return web.Response (body="""<html>
+<body>
+<p>hello</p>
+<script>
+window.setInterval (function () { fetch('/').then (function (e) { console.log (e) }) }, 2000);
+</script>
+</body>
+</html>""", status=200, content_type='text/html', charset='utf-8')
+
+    url = URL.build (scheme='http', host='localhost', port=8080)
+    app = web.Application ()
+    app.router.add_route ('GET', '/', f)
+    runner = web.AppRunner(app)
+    await runner.setup()
+    site = web.TCPSite(runner, url.host, url.port)
+    await site.start()
+
+    loop = asyncio.get_event_loop ()
+    try:
+        logger = Logger ()
+        settings = ControllerSettings (idleTimeout=1, timeout=60)
+        controller = SinglePageController (url=url, logger=logger,
+                service=Process (), behavior=[], settings=settings)
+        before = loop.time ()
+        await asyncio.wait_for (controller.run (), settings.timeout*2)
+        after = loop.time ()
+        assert settings.idleTimeout <= after-before <= settings.idleTimeout*2+3
+    finally:
+        await runner.cleanup ()
+
+def test_set_entry ():
+    a = SetEntry (1, a=2, b=3)
+    assert a == a
+    assert hash (a) == hash (a)
+
+    b = SetEntry (1, a=2, b=4)
+    assert a == b
+    assert hash (a) == hash (b)
+
+    c = SetEntry (2, a=2, b=3)
+    assert a != c
+    assert hash (a) != hash (c)
+
+@pytest.mark.asyncio
+async def test_idle_state_tracker ():
+    # default is idle
+    loop = asyncio.get_event_loop ()
+    idle = IdleStateTracker (loop)
+    assert idle._idle
+
+    # idle change
+    await idle.push (PageIdle (False))
+    assert not idle._idle
+
+    # nothing happens for other objects
+    await idle.push ({})
+    assert not idle._idle
+
+    # no state change -> wait does not return
+    with pytest.raises (asyncio.TimeoutError):
+        await asyncio.wait_for (idle.wait (0.1), timeout=1)
+
+    # wait at least timeout
+    delta = 0.2
+    timeout = 1
+    await idle.push (PageIdle (True))
+    assert idle._idle
+    start = loop.time ()
+    await idle.wait (timeout)
+    end = loop.time ()
+    assert (timeout-delta) < (end-start) < (timeout+delta)
+
+@pytest.fixture
+async def recordingServer ():
+    """ Simple HTTP server that records raw requests """
+    url = URL ('http://localhost:8080')
+    reqs = []
+    async def record (request):
+        reqs.append (request)
+        return web.Response(text='ok', content_type='text/plain')
+    app = web.Application()
+    app.add_routes([web.get(url.path, record)])
+    runner = web.AppRunner(app)
+    await runner.setup()
+    site = web.TCPSite (runner, url.host, url.port)
+    await site.start()
+    yield url, reqs
+    await runner.cleanup ()
+
+from .test_devtools import tab, browser
+from http.cookies import Morsel, SimpleCookie
+
+@pytest.mark.asyncio
+async def test_set_cookies (tab, recordingServer):
+    """ Make sure cookies are set properly and only affect the domain they were
+    set for """
+
+    logger = Logger ()
+
+    url, reqs = recordingServer
+
+    cookies = []
+    c = Morsel ()
+    c.set ('foo', 'bar', '')
+    c['domain'] = 'localhost'
+    cookies.append (c)
+    c = Morsel ()
+    c.set ('buz', 'beef', '')
+    c['domain'] = 'nonexistent.example'
+
+    settings = ControllerSettings (idleTimeout=1, timeout=60, cookies=cookies)
+    controller = SinglePageController (url=url, logger=logger,
+            service=Process (), behavior=[], settings=settings)
+    await asyncio.wait_for (controller.run (), settings.timeout*2)
+    
+    assert len (reqs) == 1
+    req = reqs[0]
+    reqCookies = SimpleCookie (req.headers['cookie'])
+    assert len (reqCookies) == 1
+    c = next (iter (reqCookies.values ()))
+    assert c.key == cookies[0].key
+    assert c.value == cookies[0].value