import unittest
import pystache
from examples.nested_context import NestedContext
from examples.complex_view import ComplexView
from examples.lambdas import Lambdas
from examples.template_partial import TemplatePartial
from examples.simple import Simple

class TestSimple(unittest.TestCase):
    
    def test_simple_render(self):
        self.assertEqual('herp', pystache.Template('{{derp}}', {'derp': 'herp'}).render())
        
    def test_nested_context(self):
        view = NestedContext()
        self.assertEquals(pystache.Template('{{#foo}}{{thing1}} and {{thing2}} and {{outer_thing}}{{/foo}}{{^foo}}Not foo!{{/foo}}', view).render(), "one and foo and two")
        
    def test_looping_and_negation_context(self):
        view = ComplexView()
        self.assertEquals(pystache.Template('{{#item}}{{header}}: {{name}} {{/item}}{{^item}} Shouldnt see me{{/item}}', view).render(), "Colors: red Colors: green Colors: blue ")

    def test_empty_context(self):
        view = ComplexView()
        self.assertEquals(pystache.Template('{{#empty_list}}Shouldnt see me {{/empty_list}}{{^empty_list}}Should see me{{/empty_list}}', view).render(), "Should see me")
        
    def test_callables(self):
        view = Lambdas()
        self.assertEquals(pystache.Template('{{#replace_foo_with_bar}}foo != bar. oh, it does!{{/replace_foo_with_bar}}', view).render(), 'bar != bar. oh, it does!')
        
    def test_rendering_partial(self):
        view = TemplatePartial()
        self.assertEquals(pystache.Template('{{>inner_partial}}', view).render(), 'Again, Welcome!')
        
        self.assertEquals(pystache.Template('{{#looping}}{{>inner_partial}} {{/looping}}', view).render(), '''Again, Welcome! Again, Welcome! Again, Welcome! ''')
        
    def test_non_existent_value_renders_blank(self):
        view = Simple()
        
        self.assertEquals(pystache.Template('{{not_set}} {{blank}}', view).render(), ' ')
        
        
    def test_template_partial_extension(self):
        view = TemplatePartial()
        view.template_extension = 'txt'
        self.assertEquals(view.render(), """Welcome
-------

Again, Welcome!
""")