import traceback from django.core import template from django.core.template import loader from django.utils.translation import activate, deactivate, install # Helper objects for template tests class SomeClass: def __init__(self): self.otherclass = OtherClass() def method(self): return "SomeClass.method" def method2(self, o): return o class OtherClass: def method(self): return "OtherClass.method" # SYNTAX -- # 'template_name': ('template contents', 'context dict', 'expected string output' or Exception class) TEMPLATE_TESTS = { ### BASIC SYNTAX ########################################################## # Plain text should go through the template parser untouched 'basic-syntax01': ("something cool", {}, "something cool"), # Variables should be replaced with their value in the current context 'basic-syntax02': ("{{ headline }}", {'headline':'Success'}, "Success"), # More than one replacement variable is allowed in a template 'basic-syntax03': ("{{ first }} --- {{ second }}", {"first" : 1, "second" : 2}, "1 --- 2"), # Fail silently when a variable is not found in the current context 'basic-syntax04': ("as{{ missing }}df", {}, "asdf"), # A variable may not contain more than one word 'basic-syntax06': ("{{ multi word variable }}", {}, template.TemplateSyntaxError), # Raise TemplateSyntaxError for empty variable tags 'basic-syntax07': ("{{ }}", {}, template.TemplateSyntaxError), 'basic-syntax08': ("{{ }}", {}, template.TemplateSyntaxError), # Attribute syntax allows a template to call an object's attribute 'basic-syntax09': ("{{ var.method }}", {"var": SomeClass()}, "SomeClass.method"), # Multiple levels of attribute access are allowed 'basic-syntax10': ("{{ var.otherclass.method }}", {"var": SomeClass()}, "OtherClass.method"), # Fail silently when a variable's attribute isn't found 'basic-syntax11': ("{{ var.blech }}", {"var": SomeClass()}, ""), # Raise TemplateSyntaxError when trying to access a variable beginning with an underscore 'basic-syntax12': ("{{ var.__dict__ }}", {"var": SomeClass()}, template.TemplateSyntaxError), # Raise TemplateSyntaxError when trying to access a variable containing an illegal character 'basic-syntax13': ("{{ va>r }}", {}, template.TemplateSyntaxError), 'basic-syntax14': ("{{ (var.r) }}", {}, template.TemplateSyntaxError), 'basic-syntax15': ("{{ sp%am }}", {}, template.TemplateSyntaxError), 'basic-syntax16': ("{{ eggs! }}", {}, template.TemplateSyntaxError), 'basic-syntax17': ("{{ moo? }}", {}, template.TemplateSyntaxError), # Attribute syntax allows a template to call a dictionary key's value 'basic-syntax18': ("{{ foo.bar }}", {"foo" : {"bar" : "baz"}}, "baz"), # Fail silently when a variable's dictionary key isn't found 'basic-syntax19': ("{{ foo.spam }}", {"foo" : {"bar" : "baz"}}, ""), # Fail silently when accessing a non-simple method 'basic-syntax20': ("{{ var.method2 }}", {"var": SomeClass()}, ""), # Basic filter usage 'basic-syntax21': ("{{ var|upper }}", {"var": "Django is the greatest!"}, "DJANGO IS THE GREATEST!"), # Chained filters 'basic-syntax22': ("{{ var|upper|lower }}", {"var": "Django is the greatest!"}, "django is the greatest!"), # Raise TemplateSyntaxError for space between a variable and filter pipe 'basic-syntax23': ("{{ var |upper }}", {}, template.TemplateSyntaxError), # Raise TemplateSyntaxError for space after a filter pipe 'basic-syntax24': ("{{ var| upper }}", {}, template.TemplateSyntaxError), # Raise TemplateSyntaxError for a nonexistent filter 'basic-syntax25': ("{{ var|does_not_exist }}", {}, template.TemplateSyntaxError), # Raise TemplateSyntaxError when trying to access a filter containing an illegal character 'basic-syntax26': ("{{ var|fil(ter) }}", {}, template.TemplateSyntaxError), # Raise TemplateSyntaxError for invalid block tags 'basic-syntax27': ("{% nothing_to_see_here %}", {}, template.TemplateSyntaxError), # Raise TemplateSyntaxError for empty block tags 'basic-syntax28': ("{% %}", {}, template.TemplateSyntaxError), # Chained filters, with an argument to the first one 'basic-syntax29': ('{{ var|removetags:"b i"|upper|lower }}', {"var": "Yes"}, "yes"), #Escaped string as argument 'basic-syntax30': (r"""{{ var|default_if_none:" endquote\" hah" }}""", {"var": None}, ' endquote" hah'), ### IF TAG ################################################################ 'if-tag01': ("{% if foo %}yes{% else %}no{% endif %}", {"foo": True}, "yes"), 'if-tag02': ("{% if foo %}yes{% else %}no{% endif %}", {"foo": False}, "no"), 'if-tag03': ("{% if foo %}yes{% else %}no{% endif %}", {}, "no"), ### COMMENT TAG ########################################################### 'comment-tag01': ("{% comment %}this is hidden{% endcomment %}hello", {}, "hello"), 'comment-tag02': ("{% comment %}this is hidden{% endcomment %}hello{% comment %}foo{% endcomment %}", {}, "hello"), ### FOR TAG ############################################################### 'for-tag01': ("{% for val in values %}{{ val }}{% endfor %}", {"values": [1, 2, 3]}, "123"), 'for-tag02': ("{% for val in values reversed %}{{ val }}{% endfor %}", {"values": [1, 2, 3]}, "321"), 'for-tag-vars01': ("{% for val in values %}{{ forloop.counter }}{% endfor %}", {"values": [6, 6, 6]}, "123"), 'for-tag-vars02': ("{% for val in values %}{{ forloop.counter0 }}{% endfor %}", {"values": [6, 6, 6]}, "012"), 'for-tag-vars03': ("{% for val in values %}{{ forloop.revcounter }}{% endfor %}", {"values": [6, 6, 6]}, "321"), 'for-tag-vars04': ("{% for val in values %}{{ forloop.revcounter0 }}{% endfor %}", {"values": [6, 6, 6]}, "210"), ### IFEQUAL TAG ########################################################### 'ifequal01': ("{% ifequal a b %}yes{% endifequal %}", {"a": 1, "b": 2}, ""), 'ifequal02': ("{% ifequal a b %}yes{% endifequal %}", {"a": 1, "b": 1}, "yes"), 'ifequal03': ("{% ifequal a b %}yes{% else %}no{% endifequal %}", {"a": 1, "b": 2}, "no"), 'ifequal04': ("{% ifequal a b %}yes{% else %}no{% endifequal %}", {"a": 1, "b": 1}, "yes"), 'ifequal05': ("{% ifequal a 'test' %}yes{% else %}no{% endifequal %}", {"a": "test"}, "yes"), 'ifequal06': ("{% ifequal a 'test' %}yes{% else %}no{% endifequal %}", {"a": "no"}, "no"), 'ifequal07': ('{% ifequal a "test" %}yes{% else %}no{% endifequal %}', {"a": "test"}, "yes"), 'ifequal08': ('{% ifequal a "test" %}yes{% else %}no{% endifequal %}', {"a": "no"}, "no"), 'ifequal09': ('{% ifequal a "test" %}yes{% else %}no{% endifequal %}', {}, "no"), 'ifequal10': ('{% ifequal a b %}yes{% else %}no{% endifequal %}', {}, "yes"), ### IFNOTEQUAL TAG ######################################################## 'ifnotequal01': ("{% ifnotequal a b %}yes{% endifnotequal %}", {"a": 1, "b": 2}, "yes"), 'ifnotequal02': ("{% ifnotequal a b %}yes{% endifnotequal %}", {"a": 1, "b": 1}, ""), 'ifnotequal03': ("{% ifnotequal a b %}yes{% else %}no{% endifnotequal %}", {"a": 1, "b": 2}, "yes"), 'ifnotequal04': ("{% ifnotequal a b %}yes{% else %}no{% endifnotequal %}", {"a": 1, "b": 1}, "no"), ### INCLUDE TAG ########################################################### 'include01': ('{% include "basic-syntax01" %}', {}, "something cool"), 'include02': ('{% include "basic-syntax02" %}', {'headline': 'Included'}, "Included"), 'include03': ('{% include template_name %}', {'template_name': 'basic-syntax02', 'headline': 'Included'}, "Included"), 'include04': ('a{% include "nonexistent" %}b', {}, "ab"), ### INHERITANCE ########################################################### # Standard template with no inheritance 'inheritance01': ("1{% block first %}_{% endblock %}3{% block second %}_{% endblock %}", {}, '1_3_'), # Standard two-level inheritance 'inheritance02': ("{% extends 'inheritance01' %}{% block first %}2{% endblock %}{% block second %}4{% endblock %}", {}, '1234'), # Three-level with no redefinitions on third level 'inheritance03': ("{% extends 'inheritance02' %}", {}, '1234'), # Two-level with no redefinitions on second level 'inheritance04': ("{% extends 'inheritance01' %}", {}, '1_3_'), # Two-level with double quotes instead of single quotes 'inheritance05': ('{% extends "inheritance02" %}', {}, '1234'), # Three-level with variable parent-template name 'inheritance06': ("{% extends foo %}", {'foo': 'inheritance02'}, '1234'), # Two-level with one block defined, one block not defined 'inheritance07': ("{% extends 'inheritance01' %}{% block second %}5{% endblock %}", {}, '1_35'), # Three-level with one block defined on this level, two blocks defined next level 'inheritance08': ("{% extends 'inheritance02' %}{% block second %}5{% endblock %}", {}, '1235'), # Three-level with second and third levels blank 'inheritance09': ("{% extends 'inheritance04' %}", {}, '1_3_'), # Three-level with space NOT in a block -- should be ignored 'inheritance10': ("{% extends 'inheritance04' %} ", {}, '1_3_'), # Three-level with both blocks defined on this level, but none on second level 'inheritance11': ("{% extends 'inheritance04' %}{% block first %}2{% endblock %}{% block second %}4{% endblock %}", {}, '1234'), # Three-level with this level providing one and second level providing the other 'inheritance12': ("{% extends 'inheritance07' %}{% block first %}2{% endblock %}", {}, '1235'), # Three-level with this level overriding second level 'inheritance13': ("{% extends 'inheritance02' %}{% block first %}a{% endblock %}{% block second %}b{% endblock %}", {}, '1a3b'), # A block defined only in a child template shouldn't be displayed 'inheritance14': ("{% extends 'inheritance01' %}{% block newblock %}NO DISPLAY{% endblock %}", {}, '1_3_'), # A block within another block 'inheritance15': ("{% extends 'inheritance01' %}{% block first %}2{% block inner %}inner{% endblock %}{% endblock %}", {}, '12inner3_'), # A block within another block (level 2) 'inheritance16': ("{% extends 'inheritance15' %}{% block inner %}out{% endblock %}", {}, '12out3_'), # {% load %} tag (parent -- setup for exception04) 'inheritance17': ("{% load testtags %}{% block first %}1234{% endblock %}", {}, '1234'), # {% load %} tag (standard usage, without inheritance) 'inheritance18': ("{% load testtags %}{% echo this that theother %}5678", {}, 'this that theother5678'), # {% load %} tag (within a child template) 'inheritance19': ("{% extends 'inheritance01' %}{% block first %}{% load testtags %}{% echo 400 %}5678{% endblock %}", {}, '140056783_'), # Two-level inheritance with {{ block.super }} 'inheritance20': ("{% extends 'inheritance01' %}{% block first %}{{ block.super }}a{% endblock %}", {}, '1_a3_'), # Three-level inheritance with {{ block.super }} from parent 'inheritance21': ("{% extends 'inheritance02' %}{% block first %}{{ block.super }}a{% endblock %}", {}, '12a34'), # Three-level inheritance with {{ block.super }} from grandparent 'inheritance22': ("{% extends 'inheritance04' %}{% block first %}{{ block.super }}a{% endblock %}", {}, '1_a3_'), # Three-level inheritance with {{ block.super }} from parent and grandparent 'inheritance23': ("{% extends 'inheritance20' %}{% block first %}{{ block.super }}b{% endblock %}", {}, '1_ab3_'), ### EXCEPTIONS ############################################################ # Raise exception for invalid template name 'exception01': ("{% extends 'nonexistent' %}", {}, template.TemplateSyntaxError), # Raise exception for invalid template name (in variable) 'exception02': ("{% extends nonexistent %}", {}, template.TemplateSyntaxError), # Raise exception for extra {% extends %} tags 'exception03': ("{% extends 'inheritance01' %}{% block first %}2{% endblock %}{% extends 'inheritance16' %}", {}, template.TemplateSyntaxError), # Raise exception for custom tags used in child with {% load %} tag in parent, not in child 'exception04': ("{% extends 'inheritance17' %}{% block first %}{% echo 400 %}5678{% endblock %}", {}, template.TemplateSyntaxError), 'multiline01': (""" Hello, boys. How are you gentlemen. """, {}, """ Hello, boys. How are you gentlemen. """), # simple translation of a string delimited by ' 'i18n01': ("{% load i18n %}{% trans 'xxxyyyxxx' %}", {}, "xxxyyyxxx"), # simple translation of a string delimited by " 'i18n02': ('{% load i18n %}{% trans "xxxyyyxxx" %}', {}, "xxxyyyxxx"), # simple translation of a variable 'i18n03': ('{% load i18n %}{% blocktrans %}{{ anton }}{% endblocktrans %}', {'anton': 'xxxyyyxxx'}, "xxxyyyxxx"), # simple translation of a variable and filter 'i18n04': ('{% load i18n %}{% blocktrans with anton|lower as berta %}{{ berta }}{% endblocktrans %}', {'anton': 'XXXYYYXXX'}, "xxxyyyxxx"), # simple translation of a string with interpolation 'i18n05': ('{% load i18n %}{% blocktrans %}xxx{{ anton }}xxx{% endblocktrans %}', {'anton': 'yyy'}, "xxxyyyxxx"), # simple translation of a string to german 'i18n06': ('{% load i18n %}{% trans "Page not found" %}', {'LANGUAGE_CODE': 'de'}, "Seite nicht gefunden"), # translation of singular form 'i18n07': ('{% load i18n %}{% blocktrans count number as counter %}singular{% plural %}plural{% endblocktrans %}', {'number': 1}, "singular"), # translation of plural form 'i18n08': ('{% load i18n %}{% blocktrans count number as counter %}singular{% plural %}plural{% endblocktrans %}', {'number': 2}, "plural"), # simple non-translation (only marking) of a string to german 'i18n09': ('{% load i18n %}{% trans "Page not found" noop %}', {'LANGUAGE_CODE': 'de'}, "Page not found"), # translation of a variable with a translated filter 'i18n10': ('{{ bool|yesno:_("ja,nein") }}', {'bool': True}, 'ja'), # translation of a variable with a non-translated filter 'i18n11': ('{{ bool|yesno:"ja,nein" }}', {'bool': True}, 'ja'), # usage of the get_available_languages tag 'i18n12': ('{% load i18n %}{% get_available_languages as langs %}{% for lang in langs %}{% ifequal lang.0 "de" %}{{ lang.0 }}{% endifequal %}{% endfor %}', {}, 'de'), # translation of a constant string 'i18n13': ('{{ _("Page not found") }}', {'LANGUAGE_CODE': 'de'}, 'Seite nicht gefunden'), } def test_template_loader(template_name, template_dirs=None): "A custom template loader that loads the unit-test templates." try: return ( TEMPLATE_TESTS[template_name][0] , "test:%s" % template_name ) except KeyError: raise template.TemplateDoesNotExist, template_name def run_tests(verbosity=0, standalone=False): # Register our custom template loader. old_template_loaders = loader.template_source_loaders loader.template_source_loaders = [test_template_loader] failed_tests = [] tests = TEMPLATE_TESTS.items() tests.sort() for name, vals in tests: install() if 'LANGUAGE_CODE' in vals[1]: activate(vals[1]['LANGUAGE_CODE']) else: activate('en-us') try: output = loader.get_template(name).render(template.Context(vals[1])) except Exception, e: if e.__class__ == vals[2]: if verbosity: print "Template test: %s -- Passed" % name else: if verbosity: traceback.print_exc() print "Template test: %s -- FAILED. Got %s, exception: %s" % (name, e.__class__, e) failed_tests.append(name) continue if 'LANGUAGE_CODE' in vals[1]: deactivate() if output == vals[2]: if verbosity: print "Template test: %s -- Passed" % name else: if verbosity: print "Template test: %s -- FAILED. Expected %r, got %r" % (name, vals[2], output) failed_tests.append(name) loader.template_source_loaders = old_template_loaders deactivate() if failed_tests and not standalone: msg = "Template tests %s failed." % failed_tests if not verbosity: msg += " Re-run tests with -v1 to see actual failures" raise Exception, msg if __name__ == "__main__": run_tests(1, True)