import unittest

from pyramid.testing import cleanUp
from pyramid import testing
from pyramid.compat import text_

class TestJSON(unittest.TestCase):
    def setUp(self):
        self.config = testing.setUp()

    def tearDown(self):
        testing.tearDown()

    def _makeOne(self, **kw):
        from pyramid.renderers import JSON
        return JSON(**kw)

    def test_it(self):
        renderer = self._makeOne()(None)
        result = renderer({'a':1}, {})
        self.assertEqual(result, '{"a": 1}')

    def test_with_request_content_type_notset(self):
        request = testing.DummyRequest()
        renderer = self._makeOne()(None)
        renderer({'a':1}, {'request':request})
        self.assertEqual(request.response.content_type, 'application/json')

    def test_with_request_content_type_set(self):
        request = testing.DummyRequest()
        request.response.content_type = 'text/mishmash'
        renderer = self._makeOne()(None)
        renderer({'a':1}, {'request':request})
        self.assertEqual(request.response.content_type, 'text/mishmash')

    def test_with_custom_adapter(self):
        request = testing.DummyRequest()
        from datetime import datetime
        def adapter(obj, req):
            self.assertEqual(req, request)
            return obj.isoformat()
        now = datetime.utcnow()
        renderer = self._makeOne()
        renderer.add_adapter(datetime, adapter)
        result = renderer(None)({'a':now}, {'request':request})
        self.assertEqual(result, '{"a": "%s"}' % now.isoformat())

    def test_with_custom_adapter2(self):
        request = testing.DummyRequest()
        from datetime import datetime
        def adapter(obj, req):
            self.assertEqual(req, request)
            return obj.isoformat()
        now = datetime.utcnow()
        renderer = self._makeOne(adapters=((datetime, adapter),))
        result = renderer(None)({'a':now}, {'request':request})
        self.assertEqual(result, '{"a": "%s"}' % now.isoformat())

    def test_with_custom_serializer(self):
        class Serializer(object):
            def __call__(self, obj, **kw):
                self.obj = obj
                self.kw = kw
                return 'foo'
        serializer = Serializer()
        renderer = self._makeOne(serializer=serializer, baz=5)
        obj = {'a':'b'}
        result = renderer(None)(obj, {})
        self.assertEqual(result, 'foo')
        self.assertEqual(serializer.obj, obj)
        self.assertEqual(serializer.kw['baz'], 5)
        self.assertTrue('default' in serializer.kw)

    def test_with_object_adapter(self):
        request = testing.DummyRequest()
        outerself = self
        class MyObject(object):
            def __init__(self, x):
                self.x = x
            def __json__(self, req):
                outerself.assertEqual(req, request)
                return {'x': self.x}

        objects = [MyObject(1), MyObject(2)]
        renderer = self._makeOne()(None)
        result = renderer(objects, {'request':request})
        self.assertEqual(result, '[{"x": 1}, {"x": 2}]')

    def test_with_object_adapter_no___json__(self):
        class MyObject(object):
            def __init__(self, x):
                self.x = x
        objects = [MyObject(1), MyObject(2)]
        renderer = self._makeOne()(None)
        self.assertRaises(TypeError, renderer, objects, {})

class Test_string_renderer_factory(unittest.TestCase):
    def _callFUT(self, name):
        from pyramid.renderers import string_renderer_factory
        return string_renderer_factory(name)

    def test_it_unicode(self):
        renderer = self._callFUT(None)
        value = text_('La Pe\xc3\xb1a', 'utf-8')
        result = renderer(value, {})
        self.assertEqual(result, value)

    def test_it_str(self):
        renderer = self._callFUT(None)
        value = 'La Pe\xc3\xb1a'
        result = renderer(value, {})
        self.assertEqual(result, value)

    def test_it_other(self):
        renderer = self._callFUT(None)
        value = None
        result = renderer(value, {})
        self.assertEqual(result, 'None')

    def test_with_request_content_type_notset(self):
        request = testing.DummyRequest()
        renderer = self._callFUT(None)
        renderer('', {'request':request})
        self.assertEqual(request.response.content_type, 'text/plain')

    def test_with_request_content_type_set(self):
        request = testing.DummyRequest()
        request.response.content_type = 'text/mishmash'
        renderer = self._callFUT(None)
        renderer('', {'request':request})
        self.assertEqual(request.response.content_type, 'text/mishmash')


class TestRendererHelper(unittest.TestCase):
    def setUp(self):
        self.config = cleanUp()

    def tearDown(self):
        cleanUp()

    def _makeOne(self, *arg, **kw):
        from pyramid.renderers import RendererHelper
        return RendererHelper(*arg, **kw)

    def test_instance_conforms(self):
        from zope.interface.verify import verifyObject
        from pyramid.interfaces import IRendererInfo
        helper = self._makeOne()
        verifyObject(IRendererInfo, helper)

    def test_settings_registry_settings_is_None(self):
        class Dummy(object):
            settings = None
        helper = self._makeOne(registry=Dummy)
        self.assertEqual(helper.settings, {})

    def test_settings_registry_name_is_None(self):
        class Dummy(object):
            settings = None
        helper = self._makeOne(registry=Dummy)
        self.assertEqual(helper.name, None)
        self.assertEqual(helper.type, '')

    def test_settings_registry_settings_is_not_None(self):
        class Dummy(object):
            settings = {'a':1}
        helper = self._makeOne(registry=Dummy)
        self.assertEqual(helper.settings, {'a':1})

    def _registerRendererFactory(self):
        from pyramid.interfaces import IRendererFactory
        def renderer(*arg):
            def respond(*arg):
                return arg
            renderer.respond = respond
            return respond
        self.config.registry.registerUtility(renderer, IRendererFactory,
                                             name='.foo')
        return renderer

    def _registerResponseFactory(self):
        from pyramid.interfaces import IResponseFactory
        class ResponseFactory(object):
            pass

        self.config.registry.registerUtility(
            lambda r: ResponseFactory(), IResponseFactory
        )

    def test_render_to_response(self):
        self._registerRendererFactory()
        self._registerResponseFactory()
        request = Dummy()
        helper = self._makeOne('loo.foo')
        response = helper.render_to_response('values', {},
                                             request=request)
        self.assertEqual(response.app_iter[0], 'values')
        self.assertEqual(response.app_iter[1], {})

    def test_get_renderer(self):
        factory = self._registerRendererFactory()
        helper = self._makeOne('loo.foo')
        self.assertEqual(helper.get_renderer(), factory.respond)

    def test_render_view(self):
        self._registerRendererFactory()
        self._registerResponseFactory()
        request = Dummy()
        helper = self._makeOne('loo.foo')
        view = 'view'
        context = 'context'
        request = testing.DummyRequest()
        response = 'response'
        response = helper.render_view(request, response, view, context)
        self.assertEqual(response.app_iter[0], 'response')
        self.assertEqual(response.app_iter[1],
                          {'renderer_info': helper,
                           'renderer_name': 'loo.foo',
                           'request': request,
                           'context': 'context',
                           'view': 'view',
                           'req': request,}
                         )

    def test_render_explicit_registry(self):
        factory = self._registerRendererFactory()
        class DummyRegistry(object):
            def __init__(self):
                self.responses = [factory, lambda *arg: {}, None]
            def queryUtility(self, iface, name=None):
                self.queried = True
                return self.responses.pop(0)
            def notify(self, event):
                self.event = event
        reg = DummyRegistry()
        helper = self._makeOne('loo.foo', registry=reg)
        result = helper.render('value', {})
        self.assertEqual(result[0], 'value')
        self.assertEqual(result[1], {})
        self.assertTrue(reg.queried)
        self.assertEqual(reg.event, {})
        self.assertEqual(reg.event.__class__.__name__, 'BeforeRender')

    def test_render_system_values_is_None(self):
        self._registerRendererFactory()
        request = Dummy()
        context = Dummy()
        request.context = context
        helper = self._makeOne('loo.foo')
        result = helper.render('values', None, request=request)
        system = {'request':request,
                  'context':context,
                  'renderer_name':'loo.foo',
                  'view':None,
                  'renderer_info':helper,
                  'req':request,
                  }
        self.assertEqual(result[0], 'values')
        self.assertEqual(result[1], system)

    def test__make_response_request_is_None(self):
        request = None
        helper = self._makeOne('loo.foo')
        response = helper._make_response('abc', request)
        self.assertEqual(response.body, b'abc')

    def test__make_response_request_is_None_response_factory_exists(self):
        self._registerResponseFactory()
        request = None
        helper = self._makeOne('loo.foo')
        response = helper._make_response(b'abc', request)
        self.assertEqual(response.__class__.__name__, 'ResponseFactory')
        self.assertEqual(response.body, b'abc')

    def test__make_response_result_is_unicode(self):
        from pyramid.response import Response
        request = testing.DummyRequest()
        request.response = Response()
        helper = self._makeOne('loo.foo')
        la = text_('/La Pe\xc3\xb1a', 'utf-8')
        response = helper._make_response(la, request)
        self.assertEqual(response.body, la.encode('utf-8'))

    def test__make_response_result_is_str(self):
        from pyramid.response import Response
        request = testing.DummyRequest()
        request.response = Response()
        helper = self._makeOne('loo.foo')
        la = text_('/La Pe\xc3\xb1a', 'utf-8')
        response = helper._make_response(la.encode('utf-8'), request)
        self.assertEqual(response.body, la.encode('utf-8'))

    def test__make_response_result_is_iterable(self):
        from pyramid.response import Response
        request = testing.DummyRequest()
        request.response = Response()
        helper = self._makeOne('loo.foo')
        la = text_('/La Pe\xc3\xb1a', 'utf-8')
        response = helper._make_response([la.encode('utf-8')], request)
        self.assertEqual(response.body, la.encode('utf-8'))

    def test__make_response_result_is_other(self):
        self._registerResponseFactory()
        request = None
        helper = self._makeOne('loo.foo')
        result = object()
        response = helper._make_response(result, request)
        self.assertEqual(response.body, result)

    def test__make_response_result_is_None_no_body(self):
        from pyramid.response import Response
        request = testing.DummyRequest()
        request.response = Response()
        helper = self._makeOne('loo.foo')
        response = helper._make_response(None, request)
        self.assertEqual(response.body, b'')

    def test__make_response_result_is_None_existing_body_not_molested(self):
        from pyramid.response import Response
        request = testing.DummyRequest()
        response = Response()
        response.body = b'abc'
        request.response = response
        helper = self._makeOne('loo.foo')
        response = helper._make_response(None, request)
        self.assertEqual(response.body, b'abc')

    def test_with_alternate_response_factory(self):
        from pyramid.interfaces import IResponseFactory
        class ResponseFactory(object):
            def __init__(self):
                pass
        self.config.registry.registerUtility(
            lambda r: ResponseFactory(), IResponseFactory
        )
        request = testing.DummyRequest()
        helper = self._makeOne('loo.foo')
        response = helper._make_response(b'abc', request)
        self.assertEqual(response.__class__, ResponseFactory)
        self.assertEqual(response.body, b'abc')

    def test__make_response_with_real_request(self):
        # functional
        from pyramid.request import Request
        request = Request({})
        request.registry = self.config.registry
        request.response.status = '406 You Lose'
        helper = self._makeOne('loo.foo')
        response = helper._make_response('abc', request)
        self.assertEqual(response.status, '406 You Lose')
        self.assertEqual(response.body, b'abc')

    def test_clone_noargs(self):
        helper = self._makeOne('name', 'package', 'registry')
        cloned_helper = helper.clone()
        self.assertEqual(cloned_helper.name, 'name')
        self.assertEqual(cloned_helper.package, 'package')
        self.assertEqual(cloned_helper.registry, 'registry')
        self.assertFalse(helper is cloned_helper)

    def test_clone_allargs(self):
        helper = self._makeOne('name', 'package', 'registry')
        cloned_helper = helper.clone(name='name2', package='package2',
                                     registry='registry2')
        self.assertEqual(cloned_helper.name, 'name2')
        self.assertEqual(cloned_helper.package, 'package2')
        self.assertEqual(cloned_helper.registry, 'registry2')
        self.assertFalse(helper is cloned_helper)

    def test_renderer_absolute_file(self):
        registry = self.config.registry
        settings = {}
        registry.settings = settings
        from pyramid.interfaces import IRendererFactory
        import os
        here = os.path.dirname(os.path.abspath(__file__))
        fixture = os.path.join(here, 'fixtures/minimal.pt')
        def factory(info, **kw):
            return info
        self.config.registry.registerUtility(
            factory, IRendererFactory, name='.pt')
        result = self._makeOne(fixture).renderer
        self.assertEqual(result.registry, registry)
        self.assertEqual(result.type, '.pt')
        self.assertEqual(result.package, None)
        self.assertEqual(result.name, fixture)
        self.assertEqual(result.settings, settings)

    def test_renderer_with_package(self):
        import pyramid
        registry = self.config.registry
        settings = {}
        registry.settings = settings
        from pyramid.interfaces import IRendererFactory
        import os
        here = os.path.dirname(os.path.abspath(__file__))
        fixture = os.path.join(here, 'fixtures/minimal.pt')
        def factory(info, **kw):
            return info
        self.config.registry.registerUtility(
            factory, IRendererFactory, name='.pt')
        result = self._makeOne(fixture, pyramid).renderer
        self.assertEqual(result.registry, registry)
        self.assertEqual(result.type, '.pt')
        self.assertEqual(result.package, pyramid)
        self.assertEqual(result.name, fixture)
        self.assertEqual(result.settings, settings)

    def test_renderer_missing(self):
        inst = self._makeOne('foo')
        self.assertRaises(ValueError, getattr, inst, 'renderer')

class TestNullRendererHelper(unittest.TestCase):
    def setUp(self):
        self.config = cleanUp()

    def tearDown(self):
        cleanUp()

    def _makeOne(self, *arg, **kw):
        from pyramid.renderers import NullRendererHelper
        return NullRendererHelper(*arg, **kw)

    def test_instance_conforms(self):
        from zope.interface.verify import verifyObject
        from pyramid.interfaces import IRendererInfo
        helper = self._makeOne()
        verifyObject(IRendererInfo, helper)

    def test_render_view(self):
        helper = self._makeOne()
        self.assertEqual(helper.render_view(None, True, None, None), True)

    def test_render(self):
        helper = self._makeOne()
        self.assertEqual(helper.render(True, None, None), True)

    def test_render_to_response(self):
        helper = self._makeOne()
        self.assertEqual(helper.render_to_response(True, None, None), True)

    def test_clone(self):
        helper = self._makeOne()
        self.assertTrue(helper.clone() is helper)

class Test_render(unittest.TestCase):
    def setUp(self):
        self.config = testing.setUp()

    def tearDown(self):
        testing.tearDown()

    def _callFUT(self, renderer_name, value, request=None, package=None):
        from pyramid.renderers import render
        return render(renderer_name, value, request=request, package=package)

    def _registerRenderer(self):
        renderer = self.config.testing_add_renderer(
            'pyramid.tests:abc/def.pt')
        renderer.string_response = 'abc'
        return renderer

    def test_it_no_request(self):
        renderer = self._registerRenderer()
        result = self._callFUT('abc/def.pt', dict(a=1))
        self.assertEqual(result, 'abc')
        renderer.assert_(a=1)
        renderer.assert_(request=None)

    def test_it_with_request(self):
        renderer = self._registerRenderer()
        request = testing.DummyRequest()
        result = self._callFUT('abc/def.pt',
                               dict(a=1), request=request)
        self.assertEqual(result, 'abc')
        renderer.assert_(a=1)
        renderer.assert_(request=request)

    def test_it_with_package(self):
        import pyramid.tests
        renderer = self._registerRenderer()
        request = testing.DummyRequest()
        result = self._callFUT('abc/def.pt', dict(a=1), request=request,
                               package=pyramid.tests)
        self.assertEqual(result, 'abc')
        renderer.assert_(a=1)
        renderer.assert_(request=request)

    def test_response_preserved(self):
        request = testing.DummyRequest()
        response = object() # should error if mutated
        request.response = response
        # use a json renderer, which will mutate the response
        result = self._callFUT('json', dict(a=1), request=request)
        self.assertEqual(result, '{"a": 1}')
        self.assertEqual(request.response, response)

    def test_no_response_to_preserve(self):
        from pyramid.decorator import reify
        class DummyRequestWithClassResponse(object):
            _response = DummyResponse()
            _response.content_type = None
            _response.default_content_type = None
            @reify
            def response(self):
                return self._response
        request = DummyRequestWithClassResponse()
        # use a json renderer, which will mutate the response
        result = self._callFUT('json', dict(a=1), request=request)
        self.assertEqual(result, '{"a": 1}')
        self.assertFalse('response' in request.__dict__)

class Test_render_to_response(unittest.TestCase):
    def setUp(self):
        self.config = testing.setUp()

    def tearDown(self):
        testing.tearDown()

    def _callFUT(self, renderer_name, value, request=None, package=None,
                 response=None):
        from pyramid.renderers import render_to_response
        return render_to_response(renderer_name, value, request=request,
                                  package=package, response=response)

    def test_it_no_request(self):
        renderer = self.config.testing_add_renderer(
            'pyramid.tests:abc/def.pt')
        renderer.string_response = 'abc'
        response = self._callFUT('abc/def.pt', dict(a=1))
        self.assertEqual(response.body, b'abc')
        renderer.assert_(a=1)
        renderer.assert_(request=None)

    def test_it_with_request(self):
        renderer = self.config.testing_add_renderer(
            'pyramid.tests:abc/def.pt')
        renderer.string_response = 'abc'
        request = testing.DummyRequest()
        response = self._callFUT('abc/def.pt',
                                 dict(a=1), request=request)
        self.assertEqual(response.body, b'abc')
        renderer.assert_(a=1)
        renderer.assert_(request=request)

    def test_it_with_package(self):
        import pyramid.tests
        renderer = self.config.testing_add_renderer(
            'pyramid.tests:abc/def.pt')
        renderer.string_response = 'abc'
        request = testing.DummyRequest()
        response = self._callFUT('abc/def.pt', dict(a=1), request=request,
                                 package=pyramid.tests)
        self.assertEqual(response.body, b'abc')
        renderer.assert_(a=1)
        renderer.assert_(request=request)

    def test_response_preserved(self):
        request = testing.DummyRequest()
        response = object() # should error if mutated
        request.response = response
        # use a json renderer, which will mutate the response
        result = self._callFUT('json', dict(a=1), request=request)
        self.assertEqual(result.body, b'{"a": 1}')
        self.assertNotEqual(request.response, result)
        self.assertEqual(request.response, response)

    def test_no_response_to_preserve(self):
        from pyramid.decorator import reify
        class DummyRequestWithClassResponse(object):
            _response = DummyResponse()
            _response.content_type = None
            _response.default_content_type = None
            @reify
            def response(self):
                return self._response
        request = DummyRequestWithClassResponse()
        # use a json renderer, which will mutate the response
        result = self._callFUT('json', dict(a=1), request=request)
        self.assertEqual(result.body, b'{"a": 1}')
        self.assertFalse('response' in request.__dict__)

    def test_custom_response_object(self):
        class DummyRequestWithClassResponse(object):
            pass
        request = DummyRequestWithClassResponse()
        response = DummyResponse()
        # use a json renderer, which will mutate the response
        result = self._callFUT('json', dict(a=1), request=request,
                               response=response)
        self.assertTrue(result is response)
        self.assertEqual(result.body, b'{"a": 1}')
        self.assertFalse('response' in request.__dict__)

class Test_temporary_response(unittest.TestCase):
    def _callFUT(self, request):
        from pyramid.renderers import temporary_response
        return temporary_response(request)

    def test_restores_response(self):
        request = testing.DummyRequest()
        orig_response = request.response
        with self._callFUT(request):
            request.response = object()
        self.assertEqual(request.response, orig_response)

    def test_restores_response_on_exception(self):
        request = testing.DummyRequest()
        orig_response = request.response
        try:
            with self._callFUT(request):
                request.response = object()
                raise RuntimeError()
        except RuntimeError:
            self.assertEqual(request.response, orig_response)
        else:                   # pragma: no cover
            self.fail("RuntimeError not raised")

    def test_restores_response_to_none(self):
        request = testing.DummyRequest(response=None)
        with self._callFUT(request):
            request.response = object()
        self.assertEqual(request.response, None)

    def test_deletes_response(self):
        request = testing.DummyRequest()
        with self._callFUT(request):
            request.response = object()
        self.assertTrue('response' not in request.__dict__)

    def test_does_not_delete_response_if_no_response_to_delete(self):
        request = testing.DummyRequest()
        with self._callFUT(request):
            pass
        self.assertTrue('response' not in request.__dict__)

class Test_get_renderer(unittest.TestCase):
    def setUp(self):
        self.config = testing.setUp()

    def tearDown(self):
        testing.tearDown()

    def _callFUT(self, renderer_name, **kw):
        from pyramid.renderers import get_renderer
        return get_renderer(renderer_name, **kw)

    def test_it_no_package(self):
        renderer = self.config.testing_add_renderer(
            'pyramid.tests:abc/def.pt')
        result = self._callFUT('abc/def.pt')
        self.assertEqual(result, renderer)

    def test_it_with_package(self):
        import pyramid.tests
        renderer = self.config.testing_add_renderer(
            'pyramid.tests:abc/def.pt')
        result = self._callFUT('abc/def.pt', package=pyramid.tests)
        self.assertEqual(result, renderer)

class TestJSONP(unittest.TestCase):
    def _makeOne(self, param_name='callback'):
        from pyramid.renderers import JSONP
        return JSONP(param_name)

    def test_render_to_jsonp(self):
        renderer_factory = self._makeOne()
        renderer = renderer_factory(None)
        request = testing.DummyRequest()
        request.GET['callback'] = 'callback'
        result = renderer({'a':'1'}, {'request':request})
        self.assertEqual(result, '/**/callback({"a": "1"});')
        self.assertEqual(request.response.content_type,
                         'application/javascript')

    def test_render_to_jsonp_with_dot(self):
        renderer_factory = self._makeOne()
        renderer = renderer_factory(None)
        request = testing.DummyRequest()
        request.GET['callback'] = 'angular.callbacks._0'
        result = renderer({'a':'1'}, {'request':request})
        self.assertEqual(result, '/**/angular.callbacks._0({"a": "1"});')
        self.assertEqual(request.response.content_type,
                         'application/javascript')

    def test_render_to_json(self):
        renderer_factory = self._makeOne()
        renderer = renderer_factory(None)
        request = testing.DummyRequest()
        result = renderer({'a':'1'}, {'request':request})
        self.assertEqual(result, '{"a": "1"}')
        self.assertEqual(request.response.content_type,
                         'application/json')

    def test_render_without_request(self):
        renderer_factory = self._makeOne()
        renderer = renderer_factory(None)
        result = renderer({'a':'1'}, {})
        self.assertEqual(result, '{"a": "1"}')

    def test_render_to_jsonp_invalid_callback(self):
        from pyramid.httpexceptions import HTTPBadRequest
        renderer_factory = self._makeOne()
        renderer = renderer_factory(None)
        request = testing.DummyRequest()
        request.GET['callback'] = '78mycallback'
        self.assertRaises(HTTPBadRequest, renderer, {'a':'1'}, {'request':request})


class Dummy:
    pass

class DummyResponse:
    status = '200 OK'
    default_content_type = 'text/html'
    content_type = default_content_type
    headerlist = ()
    app_iter = ()
    body = b''

    # compat for renderer that will set unicode on py3
    def _set_text(self, val): # pragma: no cover
        self.body = val.encode('utf8')
    text = property(fset=_set_text)