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|
# -*- coding: utf-8 -*-
import pytest
from jinja2 import DictLoader
from jinja2 import Environment
from jinja2 import TemplateRuntimeError
LAYOUTTEMPLATE = """\
|{% block block1 %}block 1 from layout{% endblock %}
|{% block block2 %}block 2 from layout{% endblock %}
|{% block block3 %}
{% block block4 %}nested block 4 from layout{% endblock %}
{% endblock %}|"""
LEVEL1TEMPLATE = """\
{% extends "layout" %}
{% block block1 %}block 1 from level1{% endblock %}"""
LEVEL2TEMPLATE = """\
{% extends "level1" %}
{% block block2 %}{% block block5 %}nested block 5 from level2{%
endblock %}{% endblock %}"""
LEVEL3TEMPLATE = """\
{% extends "level2" %}
{% block block5 %}block 5 from level3{% endblock %}
{% block block4 %}block 4 from level3{% endblock %}
"""
LEVEL4TEMPLATE = """\
{% extends "level3" %}
{% block block3 %}block 3 from level4{% endblock %}
"""
WORKINGTEMPLATE = """\
{% extends "layout" %}
{% block block1 %}
{% if false %}
{% block block2 %}
this should workd
{% endblock %}
{% endif %}
{% endblock %}
"""
DOUBLEEXTENDS = """\
{% extends "layout" %}
{% extends "layout" %}
{% block block1 %}
{% if false %}
{% block block2 %}
this should workd
{% endblock %}
{% endif %}
{% endblock %}
"""
@pytest.fixture
def env():
return Environment(
loader=DictLoader(
{
"layout": LAYOUTTEMPLATE,
"level1": LEVEL1TEMPLATE,
"level2": LEVEL2TEMPLATE,
"level3": LEVEL3TEMPLATE,
"level4": LEVEL4TEMPLATE,
"working": WORKINGTEMPLATE,
"doublee": DOUBLEEXTENDS,
}
),
trim_blocks=True,
)
class TestInheritance(object):
def test_layout(self, env):
tmpl = env.get_template("layout")
assert tmpl.render() == (
"|block 1 from layout|block 2 from layout|nested block 4 from layout|"
)
def test_level1(self, env):
tmpl = env.get_template("level1")
assert tmpl.render() == (
"|block 1 from level1|block 2 from layout|nested block 4 from layout|"
)
def test_level2(self, env):
tmpl = env.get_template("level2")
assert tmpl.render() == (
"|block 1 from level1|nested block 5 from "
"level2|nested block 4 from layout|"
)
def test_level3(self, env):
tmpl = env.get_template("level3")
assert tmpl.render() == (
"|block 1 from level1|block 5 from level3|block 4 from level3|"
)
def test_level4(self, env):
tmpl = env.get_template("level4")
assert tmpl.render() == (
"|block 1 from level1|block 5 from level3|block 3 from level4|"
)
def test_super(self, env):
env = Environment(
loader=DictLoader(
{
"a": "{% block intro %}INTRO{% endblock %}|"
"BEFORE|{% block data %}INNER{% endblock %}|AFTER",
"b": '{% extends "a" %}{% block data %}({{ '
"super() }}){% endblock %}",
"c": '{% extends "b" %}{% block intro %}--{{ '
"super() }}--{% endblock %}\n{% block data "
"%}[{{ super() }}]{% endblock %}",
}
)
)
tmpl = env.get_template("c")
assert tmpl.render() == "--INTRO--|BEFORE|[(INNER)]|AFTER"
def test_working(self, env):
env.get_template("working")
def test_reuse_blocks(self, env):
tmpl = env.from_string(
"{{ self.foo() }}|{% block foo %}42{% endblock %}|{{ self.foo() }}"
)
assert tmpl.render() == "42|42|42"
def test_preserve_blocks(self, env):
env = Environment(
loader=DictLoader(
{
"a": "{% if false %}{% block x %}A{% endblock %}"
"{% endif %}{{ self.x() }}",
"b": '{% extends "a" %}{% block x %}B{{ super() }}{% endblock %}',
}
)
)
tmpl = env.get_template("b")
assert tmpl.render() == "BA"
def test_dynamic_inheritance(self, env):
env = Environment(
loader=DictLoader(
{
"master1": "MASTER1{% block x %}{% endblock %}",
"master2": "MASTER2{% block x %}{% endblock %}",
"child": "{% extends master %}{% block x %}CHILD{% endblock %}",
}
)
)
tmpl = env.get_template("child")
for m in range(1, 3):
assert tmpl.render(master="master%d" % m) == "MASTER%dCHILD" % m
def test_multi_inheritance(self, env):
env = Environment(
loader=DictLoader(
{
"master1": "MASTER1{% block x %}{% endblock %}",
"master2": "MASTER2{% block x %}{% endblock %}",
"child": """{% if master %}{% extends master %}{% else %}{% extends
'master1' %}{% endif %}{% block x %}CHILD{% endblock %}""",
}
)
)
tmpl = env.get_template("child")
assert tmpl.render(master="master2") == "MASTER2CHILD"
assert tmpl.render(master="master1") == "MASTER1CHILD"
assert tmpl.render() == "MASTER1CHILD"
def test_scoped_block(self, env):
env = Environment(
loader=DictLoader(
{
"master.html": "{% for item in seq %}[{% block item scoped %}"
"{% endblock %}]{% endfor %}"
}
)
)
t = env.from_string(
"{% extends 'master.html' %}{% block item %}{{ item }}{% endblock %}"
)
assert t.render(seq=list(range(5))) == "[0][1][2][3][4]"
def test_super_in_scoped_block(self, env):
env = Environment(
loader=DictLoader(
{
"master.html": "{% for item in seq %}[{% block item scoped %}"
"{{ item }}{% endblock %}]{% endfor %}"
}
)
)
t = env.from_string(
'{% extends "master.html" %}{% block item %}'
"{{ super() }}|{{ item * 2 }}{% endblock %}"
)
assert t.render(seq=list(range(5))) == "[0|0][1|2][2|4][3|6][4|8]"
def test_scoped_block_after_inheritance(self, env):
env = Environment(
loader=DictLoader(
{
"layout.html": """
{% block useless %}{% endblock %}
""",
"index.html": """
{%- extends 'layout.html' %}
{% from 'helpers.html' import foo with context %}
{% block useless %}
{% for x in [1, 2, 3] %}
{% block testing scoped %}
{{ foo(x) }}
{% endblock %}
{% endfor %}
{% endblock %}
""",
"helpers.html": """
{% macro foo(x) %}{{ the_foo + x }}{% endmacro %}
""",
}
)
)
rv = env.get_template("index.html").render(the_foo=42).split()
assert rv == ["43", "44", "45"]
class TestBugFix(object):
def test_fixed_macro_scoping_bug(self, env):
assert (
Environment(
loader=DictLoader(
{
"test.html": """\
{% extends 'details.html' %}
{% macro my_macro() %}
my_macro
{% endmacro %}
{% block inner_box %}
{{ my_macro() }}
{% endblock %}
""",
"details.html": """\
{% extends 'standard.html' %}
{% macro my_macro() %}
my_macro
{% endmacro %}
{% block content %}
{% block outer_box %}
outer_box
{% block inner_box %}
inner_box
{% endblock %}
{% endblock %}
{% endblock %}
""",
"standard.html": """
{% block content %} {% endblock %}
""",
}
)
)
.get_template("test.html")
.render()
.split()
== [u"outer_box", u"my_macro"]
)
def test_double_extends(self, env):
"""Ensures that a template with more than 1 {% extends ... %} usage
raises a ``TemplateError``.
"""
with pytest.raises(TemplateRuntimeError, match="extended multiple times"):
env.get_template("doublee").render()
|
