def test_solution_notification(self, get_current):
        """Assert that hitting the watch toggle toggles and that proper mails
        are sent to anonymous and registered watchers."""
        # TODO: Too monolithic. Split this test into several.
        get_current.return_value.domain = 'testserver'

        question = self._toggle_watch_question('solution', turn_on=True)
        QuestionSolvedEvent.notify('[email protected]', question)

        answer = question.answers.all()[0]
        # Post a reply
        self.client.login(username='jsocol', password='testpass')
        post(self.client, 'questions.solution', args=[question.id, answer.id])

        # Order of emails is not important.
        attrs_eq(mail.outbox[0], to=['[email protected]'],
                 subject='Solution found to Firefox Help question')
        starts_with(mail.outbox[0].body, SOLUTION_EMAIL % answer.id)

        attrs_eq(mail.outbox[1], to=['[email protected]'],
                 subject='Solution found to Firefox Help question')
        starts_with(mail.outbox[1].body,
                    SOLUTION_EMAIL_TO_ANONYMOUS % answer.id)

        self._toggle_watch_question('solution', turn_on=False)

 def test_watch_solution_and_replies(self):
     """User subscribes to solution and replies: page doesn't break"""
     self.client.login(username="rrosario", password="testpass")
     user = User.objects.get(username="rrosario")
     QuestionReplyEvent.notify(user, self.question)
     QuestionSolvedEvent.notify(user, self.question)
     response = get(self.client, "questions.answers", args=[self.question.id])
     eq_(200, response.status_code)

def unsubscribe_watch(request, watch_id, secret):
    """Stop watching a question, for anonymous users."""
    watch = get_object_or_404(Watch, pk=watch_id)
    question = watch.content_object
    success = False
    if watch.secret == secret and isinstance(question, Question):
        user_or_email = watch.user or watch.email
        QuestionReplyEvent.stop_notifying(user_or_email, question)
        QuestionSolvedEvent.stop_notifying(user_or_email, question)
        success = True

    return jingo.render(request, "questions/unsubscribe_watch.html", {"question": question, "success": success})

def _answers_data(request, question_id, form=None, watch_form=None,
                  answer_preview=None):
    """Return a map of the minimal info necessary to draw an answers page."""
    question = get_object_or_404(Question, pk=question_id)
    answers_ = question.answers.all()
    if not request.MOBILE:
        answers_ = paginate(request, answers_,
                            per_page=constants.ANSWERS_PER_PAGE)
    feed_urls = ((reverse('questions.answers.feed',
                          kwargs={'question_id': question_id}),
                  AnswersFeed().title(question)),)
    frequencies = dict(FREQUENCY_CHOICES)

    is_watching_question = (
        request.user.is_authenticated() and (
        QuestionReplyEvent.is_notifying(request.user, question) or
        QuestionSolvedEvent.is_notifying(request.user, question)))
    return {'question': question,
            'answers': answers_,
            'form': form or AnswerForm(),
            'answer_preview': answer_preview,
            'watch_form': watch_form or _init_watch_form(request, 'reply'),
            'feeds': feed_urls,
            'frequencies': frequencies,
            'is_watching_question': is_watching_question,
            'can_tag': request.user.has_perm('questions.tag_question'),
            'can_create_tags': request.user.has_perm('taggit.add_tag')}

def _answers_data(request, question_id, form=None, watch_form=None, answer_preview=None):
    """Return a map of the minimal info necessary to draw an answers page."""
    question = get_object_or_404(Question, pk=question_id)
    answers_ = paginate(request, question.answers.all(), per_page=constants.ANSWERS_PER_PAGE)
    vocab = [t.name for t in Tag.objects.all()]  # TODO: Fetch only name.
    feed_urls = (
        (reverse("questions.answers.feed", kwargs={"question_id": question_id}), AnswersFeed().title(question)),
    )
    frequencies = dict(FREQUENCY_CHOICES)

    is_watching_question = request.user.is_authenticated() and (
        QuestionReplyEvent.is_notifying(request.user, question)
        or QuestionSolvedEvent.is_notifying(request.user, question)
    )
    return {
        "question": question,
        "answers": answers_,
        "form": form or AnswerForm(),
        "answer_preview": answer_preview,
        "watch_form": watch_form or _init_watch_form(request, "reply"),
        "feeds": feed_urls,
        "tag_vocab": json.dumps(vocab),
        "frequencies": frequencies,
        "is_watching_question": is_watching_question,
        "can_tag": request.user.has_perm("questions.tag_question"),
        "can_create_tags": request.user.has_perm("taggit.add_tag"),
    }

    def _watch_question(self):
        """Helper to watch a question."""
        question = Question.objects.all()[0]
        self.client.login(username='pcraciunoiu', password='testpass')
        user = User.objects.get(username='pcraciunoiu')

        # Make sure it isn't watching yet.
        assert not QuestionSolvedEvent.is_notifying(user, question), (
            '%s should not be notifying.' % QuestionSolvedEvent.__name__)

        post(self.client, 'questions.watch', {}, args=[question.id])

        assert QuestionSolvedEvent.is_notifying(user, question), (
            '%s should be notifying.' % QuestionSolvedEvent.__name__)

        return question

def watch_question(request, question_id):
    """Start watching a question for replies or solution."""
    question = get_object_or_404(Question, pk=question_id)
    form = WatchQuestionForm(request.user, request.POST)

    # Process the form
    msg = None
    if form.is_valid():
        user_or_email = (request.user if request.user.is_authenticated()
                                      else form.cleaned_data['email'])
        try:
            if form.cleaned_data['event_type'] == 'reply':
                QuestionReplyEvent.notify(user_or_email, question)
            else:
                QuestionSolvedEvent.notify(user_or_email, question)
        except ActivationRequestFailed:
            msg = _('Could not send message to that email address.')

    # Respond to ajax request
    if request.is_ajax():
        if form.is_valid():
            if not msg:
                msg = (_('You will be notified of updates by email.') if
                       request.user.is_authenticated() else
                       _('You should receive an email shortly '
                         'to confirm your subscription.'))
            return HttpResponse(json.dumps({'message': msg}))

        if request.POST.get('from_vote'):
            tmpl = 'questions/includes/question_vote_thanks.html'
        else:
            tmpl = 'questions/includes/email_subscribe.html'

        html = jingo.render_to_string(request, tmpl, {'question': question,
                                                      'watch_form': form})
        return HttpResponse(json.dumps({'html': html}))

    # Respond to normal request
    # TODO: show failure here if email fails to send.
    if form.is_valid():
        return HttpResponseRedirect(question.get_absolute_url())

    return answers(request, question.id, watch_form=form)

def watch_question(request, question_id):
    """Start watching a question for replies or solution."""

    question = get_object_or_404(Question, pk=question_id)
    form = WatchQuestionForm(request.user, request.POST)

    # Process the form
    msg = None
    if form.is_valid():
        user_or_email = request.user if request.user.is_authenticated() else form.cleaned_data["email"]
        try:
            if form.cleaned_data["event_type"] == "reply":
                QuestionReplyEvent.notify(user_or_email, question)
            else:
                QuestionSolvedEvent.notify(user_or_email, question)
            statsd.incr("questions.watches.new")
        except ActivationRequestFailed:
            msg = _("Could not send a message to that email address.")

    # Respond to ajax request
    if request.is_ajax():
        if form.is_valid():
            msg = msg or (
                _("You will be notified of updates by email.")
                if request.user.is_authenticated()
                else _("You should receive an email shortly " "to confirm your subscription.")
            )
            return HttpResponse(json.dumps({"message": msg}))

        if request.POST.get("from_vote"):
            tmpl = "questions/includes/question_vote_thanks.html"
        else:
            tmpl = "questions/includes/email_subscribe.html"

        html = jingo.render_to_string(request, tmpl, {"question": question, "watch_form": form})
        return HttpResponse(json.dumps({"html": html}))

    if msg:
        messages.add_message(request, messages.ERROR, msg)

    return HttpResponseRedirect(question.get_absolute_url())

def watch_question(request, question_id):
    """Start watching a question for replies or solution."""

    question = get_object_or_404(Question, pk=question_id)
    form = WatchQuestionForm(request.user, request.POST)

    # Process the form
    msg = None
    if form.is_valid():
        user_or_email = (request.user if request.user.is_authenticated()
                                      else form.cleaned_data['email'])
        try:
            QuestionSolvedEvent.notify(user_or_email, question)
            statsd.incr('questions.watches.new')
        except ActivationRequestFailed:
            msg = _('Could not send a message to that email address.')

    # Respond to ajax request
    if request.is_ajax():
        if form.is_valid():
            msg = msg or (_('You will be notified of updates by email.') if
                              request.user.is_authenticated() else
                          _('You should receive an email shortly '
                            'to confirm your subscription.'))
            return HttpResponse(json.dumps({'message': msg}))

        html = jingo.render_to_string(
            request,
            'questions/includes/question_vote_thanks.html',
            {'question': question, 'watch_form': form})

        return HttpResponse(json.dumps({'html': html}))

    if msg:
        messages.add_message(request, messages.ERROR, msg)

    return HttpResponseRedirect(question.get_absolute_url())

    def test_solution_notification_deleted(self, get_current):
        """Calling QuestionSolvedEvent.fire() should not query the
        questions_question table.

        This test attempts to simulate the replication lag presumed to cause
        bug 585029.

        """
        get_current.return_value.domain = 'testserver'

        answer = Answer.objects.get(pk=1)
        question = Question.objects.get(pk=1)
        question.solution = answer
        question.save()

        a_user = User.objects.get(username='pcraciunoiu')
        QuestionSolvedEvent.notify(a_user, question)
        event = QuestionSolvedEvent(answer)

        # Delete the question, pretend it hasn't been replicated yet
        Question.objects.get(pk=question.pk).delete()

        event.fire(exclude=question.creator)
        eq_(1, len(mail.outbox))

    def test_watch_solution(self, get_current):
        """Watch a question for solution."""
        self.client.logout()
        get_current.return_value.domain = "testserver"

        post(self.client, "questions.watch", {"email": "[email protected]", "event_type": "solution"}, args=[self.question.id])
        assert QuestionSolvedEvent.is_notifying("[email protected]", self.question), "Watch was not created"

        attrs_eq(mail.outbox[0], to=["[email protected]"], subject="Please confirm your email address")
        assert "questions/confirm/" in mail.outbox[0].body
        assert "Solution found" in mail.outbox[0].body

        # Now activate the watch.
        w = Watch.objects.get()
        get(self.client, "questions.activate_watch", args=[w.id, w.secret])
        assert Watch.objects.get().is_active

    def test_watch_solution(self, get_current):
        """Watch a question for solution."""
        self.client.logout()
        get_current.return_value.domain = 'testserver'

        post(self.client, 'questions.watch',
             {'email': '[email protected]', 'event_type': 'solution'},
             args=[self.question.id])
        assert QuestionSolvedEvent.is_notifying('[email protected]', self.question), (
               'Watch was not created')

        attrs_eq(mail.outbox[0], to=['[email protected]'],
                 subject='Please confirm your email address')
        assert 'questions/confirm/' in mail.outbox[0].body
        assert 'Solution found' in mail.outbox[0].body

        # Now activate the watch.
        w = Watch.objects.get()
        get(self.client, 'questions.activate_watch', args=[w.id, w.secret])
        assert Watch.objects.get().is_active

def unwatch_question(request, question_id):
    """Stop watching a question."""
    question = get_object_or_404(Question, pk=question_id)
    QuestionReplyEvent.stop_notifying(request.user, question)
    QuestionSolvedEvent.stop_notifying(request.user, question)
    return HttpResponseRedirect(question.get_absolute_url())