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from collections import namedtuple
import pytest
from markupsafe import Markup
from jinja2 import Environment
from jinja2.async_utils import auto_aiter
async def make_aiter(iter):
for item in iter:
yield item
def mark_dualiter(parameter, factory):
def decorator(f):
return pytest.mark.parametrize(
parameter, [lambda: factory(), lambda: make_aiter(factory())]
)(f)
return decorator
@pytest.fixture
def env_async():
return Environment(enable_async=True)
@mark_dualiter("foo", lambda: range(10))
def test_first(env_async, foo):
tmpl = env_async.from_string("{{ foo()|first }}")
out = tmpl.render(foo=foo)
assert out == "0"
@mark_dualiter(
"items",
lambda: [
{"foo": 1, "bar": 2},
{"foo": 2, "bar": 3},
{"foo": 1, "bar": 1},
{"foo": 3, "bar": 4},
],
)
def test_groupby(env_async, items):
tmpl = env_async.from_string(
"""
{%- for grouper, list in items()|groupby('foo') -%}
{{ grouper }}{% for x in list %}: {{ x.foo }}, {{ x.bar }}{% endfor %}|
{%- endfor %}"""
)
assert tmpl.render(items=items).split("|") == [
"1: 1, 2: 1, 1",
"2: 2, 3",
"3: 3, 4",
"",
]
@pytest.mark.parametrize(
("case_sensitive", "expect"),
[
(False, "a: 1, 3\nb: 2\n"),
(True, "A: 3\na: 1\nb: 2\n"),
],
)
def test_groupby_case(env_async, case_sensitive, expect):
tmpl = env_async.from_string(
"{% for k, vs in data|groupby('k', case_sensitive=cs) %}"
"{{ k }}: {{ vs|join(', ', attribute='v') }}\n"
"{% endfor %}"
)
out = tmpl.render(
data=[{"k": "a", "v": 1}, {"k": "b", "v": 2}, {"k": "A", "v": 3}],
cs=case_sensitive,
)
assert out == expect
@mark_dualiter("items", lambda: [("a", 1), ("a", 2), ("b", 1)])
def test_groupby_tuple_index(env_async, items):
tmpl = env_async.from_string(
"""
{%- for grouper, list in items()|groupby(0) -%}
{{ grouper }}{% for x in list %}:{{ x.1 }}{% endfor %}|
{%- endfor %}"""
)
assert tmpl.render(items=items) == "a:1:2|b:1|"
def make_articles():
Date = namedtuple("Date", "day,month,year")
Article = namedtuple("Article", "title,date")
return [
Article("aha", Date(1, 1, 1970)),
Article("interesting", Date(2, 1, 1970)),
Article("really?", Date(3, 1, 1970)),
Article("totally not", Date(1, 1, 1971)),
]
@mark_dualiter("articles", make_articles)
def test_groupby_multidot(env_async, articles):
tmpl = env_async.from_string(
"""
{%- for year, list in articles()|groupby('date.year') -%}
{{ year }}{% for x in list %}[{{ x.title }}]{% endfor %}|
{%- endfor %}"""
)
assert tmpl.render(articles=articles).split("|") == [
"1970[aha][interesting][really?]",
"1971[totally not]",
"",
]
@mark_dualiter("int_items", lambda: [1, 2, 3])
def test_join_env_int(env_async, int_items):
tmpl = env_async.from_string('{{ items()|join("|") }}')
out = tmpl.render(items=int_items)
assert out == "1|2|3"
@mark_dualiter("string_items", lambda: ["<foo>", Markup("<span>foo</span>")])
def test_join_string_list(string_items):
env2 = Environment(autoescape=True, enable_async=True)
tmpl = env2.from_string('{{ ["<foo>", "<span>foo</span>"|safe]|join }}')
assert tmpl.render(items=string_items) == "<foo><span>foo</span>"
def make_users():
User = namedtuple("User", "username")
return map(User, ["foo", "bar"])
@mark_dualiter("users", make_users)
def test_join_attribute(env_async, users):
tmpl = env_async.from_string("""{{ users()|join(', ', 'username') }}""")
assert tmpl.render(users=users) == "foo, bar"
@mark_dualiter("items", lambda: [1, 2, 3, 4, 5])
def test_simple_reject(env_async, items):
tmpl = env_async.from_string('{{ items()|reject("odd")|join("|") }}')
assert tmpl.render(items=items) == "2|4"
@mark_dualiter("items", lambda: [None, False, 0, 1, 2, 3, 4, 5])
def test_bool_reject(env_async, items):
tmpl = env_async.from_string('{{ items()|reject|join("|") }}')
assert tmpl.render(items=items) == "None|False|0"
@mark_dualiter("items", lambda: [1, 2, 3, 4, 5])
def test_simple_select(env_async, items):
tmpl = env_async.from_string('{{ items()|select("odd")|join("|") }}')
assert tmpl.render(items=items) == "1|3|5"
@mark_dualiter("items", lambda: [None, False, 0, 1, 2, 3, 4, 5])
def test_bool_select(env_async, items):
tmpl = env_async.from_string('{{ items()|select|join("|") }}')
assert tmpl.render(items=items) == "1|2|3|4|5"
def make_users(): # type: ignore
User = namedtuple("User", "name,is_active")
return [
User("john", True),
User("jane", True),
User("mike", False),
]
@mark_dualiter("users", make_users)
def test_simple_select_attr(env_async, users):
tmpl = env_async.from_string(
'{{ users()|selectattr("is_active")|map(attribute="name")|join("|") }}'
)
assert tmpl.render(users=users) == "john|jane"
@mark_dualiter("items", lambda: list("123"))
def test_simple_map(env_async, items):
tmpl = env_async.from_string('{{ items()|map("int")|sum }}')
assert tmpl.render(items=items) == "6"
def test_map_sum(env_async): # async map + async filter
tmpl = env_async.from_string('{{ [[1,2], [3], [4,5,6]]|map("sum")|list }}')
assert tmpl.render() == "[3, 3, 15]"
@mark_dualiter("users", make_users)
def test_attribute_map(env_async, users):
tmpl = env_async.from_string('{{ users()|map(attribute="name")|join("|") }}')
assert tmpl.render(users=users) == "john|jane|mike"
def test_empty_map(env_async):
tmpl = env_async.from_string('{{ none|map("upper")|list }}')
assert tmpl.render() == "[]"
@mark_dualiter("items", lambda: [1, 2, 3, 4, 5, 6])
def test_sum(env_async, items):
tmpl = env_async.from_string("""{{ items()|sum }}""")
assert tmpl.render(items=items) == "21"
@mark_dualiter("items", lambda: [{"value": 23}, {"value": 1}, {"value": 18}])
def test_sum_attributes(env_async, items):
tmpl = env_async.from_string("""{{ items()|sum('value') }}""")
assert tmpl.render(items=items)
def test_sum_attributes_nested(env_async):
tmpl = env_async.from_string("""{{ values|sum('real.value') }}""")
assert (
tmpl.render(
values=[
{"real": {"value": 23}},
{"real": {"value": 1}},
{"real": {"value": 18}},
]
)
== "42"
)
def test_sum_attributes_tuple(env_async):
tmpl = env_async.from_string("""{{ values.items()|sum('1') }}""")
assert tmpl.render(values={"foo": 23, "bar": 1, "baz": 18}) == "42"
@mark_dualiter("items", lambda: range(10))
def test_slice(env_async, items):
tmpl = env_async.from_string(
"{{ items()|slice(3)|list }}|{{ items()|slice(3, 'X')|list }}"
)
out = tmpl.render(items=items)
assert out == (
"[[0, 1, 2, 3], [4, 5, 6], [7, 8, 9]]|"
"[[0, 1, 2, 3], [4, 5, 6, 'X'], [7, 8, 9, 'X']]"
)
def test_custom_async_filter(env_async):
async def customfilter(val):
return str(val)
env_async.filters["customfilter"] = customfilter
tmpl = env_async.from_string("{{ 'static'|customfilter }} {{ arg|customfilter }}")
out = tmpl.render(arg="dynamic")
assert out == "static dynamic"
@mark_dualiter("items", lambda: range(10))
def test_custom_async_iteratable_filter(env_async, items):
async def customfilter(iterable):
items = []
async for item in auto_aiter(iterable):
items.append(str(item))
if len(items) == 3:
break
return ",".join(items)
env_async.filters["customfilter"] = customfilter
tmpl = env_async.from_string(
"{{ items()|customfilter }} .. {{ [3, 4, 5, 6]|customfilter }}"
)
out = tmpl.render(items=items)
assert out == "0,1,2 .. 3,4,5"
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