import unittest

from zope.component.testing import PlacelessSetup

class Base(PlacelessSetup):
    def setUp(self):
        PlacelessSetup.setUp(self)

    def tearDown(self):
        PlacelessSetup.tearDown(self)

    def _zcmlConfigure(self):
        import repoze.bfg
        import zope.configuration.xmlconfig
        zope.configuration.xmlconfig.file('configure.zcml', package=repoze.bfg)

    def _getTemplatePath(self, name):
        import os
        here = os.path.abspath(os.path.dirname(__file__))
        return os.path.join(here, 'fixtures', name)
        

class PageTemplateFileTests(unittest.TestCase, Base):
    def setUp(self):
        Base.setUp(self)

    def tearDown(self):
        Base.tearDown(self)

    def _getTargetClass(self):
        from repoze.bfg.template import PageTemplateFile
        return PageTemplateFile

    def _makeOne(self, *arg, **kw):
        klass = self._getTargetClass()
        return klass(*arg, **kw)

    def test_render(self):
        self._zcmlConfigure()
        minimal = self._getTemplatePath('minimal.pt')
        instance = self._makeOne(minimal)
        result = instance.render()
        from webob import Response
        self.failUnless(isinstance(result, Response))
        self.assertEqual(result.app_iter, ['<div>\n</div>'])
        self.assertEqual(result.status, '200 OK')
        self.assertEqual(len(result.headerlist), 2)
        
class ViewPageTemplateFileTests(unittest.TestCase, Base):
    def setUp(self):
        Base.setUp(self)

    def tearDown(self):
        Base.tearDown(self)

    def _getTargetClass(self):
        from repoze.bfg.template import ViewPageTemplateFile
        return ViewPageTemplateFile

    def _makeOne(self, *arg, **kw):
        klass = self._getTargetClass()
        return klass(*arg, **kw)

    def test_render(self):
        self._zcmlConfigure()
        f = DummyPageTemplateFile()
        instance = self._makeOne(f)
        class View:
            context = 'context'
            request = 'request'
        view = View()
        template = instance.render(view)
        args, kw = template(foo='bar')
        self.assertEqual(kw['request'], 'request')
        self.assertEqual(kw['options'], {'foo':'bar'})
        self.assertEqual(kw['context'], 'context')
        self.assertEqual(kw['view'], view)

class TemplateViewTests(unittest.TestCase, Base):
    def setUp(self):
        Base.setUp(self)

    def tearDown(self):
        Base.tearDown(self)

    def _getTargetClass(self):
        from repoze.bfg.template import TemplateView
        return TemplateView

    def _makeOne(self, *arg, **kw):
        klass = self._getTargetClass()
        return klass(*arg, **kw)

    def test_call(self):
        view = self._makeOne(None, None)
        _marker = ()
        view.index = lambda *arg, **kw: _marker
        result = view('foo')
        self.assertEqual(result, _marker)
        
class DummyPageTemplateFile:
    def render(self, *arg, **kw):
        return arg, kw