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test_form_helper.py
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test_form_helper.py
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import re
import django
import pytest
from django import forms
from django.forms.models import formset_factory
from django.middleware.csrf import _get_new_csrf_string
from django.template import Context, Template, TemplateSyntaxError
from django.urls import reverse
from crispy_forms.bootstrap import AppendedText, FieldWithButtons, PrependedAppendedText, PrependedText, StrictButton
from crispy_forms.helper import FormHelper, FormHelpersException
from crispy_forms.layout import Button, Hidden, Layout, Reset, Submit
from crispy_forms.templatetags.crispy_forms_tags import CrispyFormNode
from crispy_forms.utils import render_crispy_form
from .forms import SampleForm, SampleForm7, SampleForm8, SampleFormWithMedia
from .test_utils import parse_expected, parse_form
def test_inputs():
form_helper = FormHelper()
form_helper.add_input(Submit("my-submit", "Submit", css_class="button white"))
form_helper.add_input(Reset("my-reset", "Reset"))
form_helper.add_input(Hidden("my-hidden", "Hidden"))
form_helper.add_input(Button("my-button", "Button"))
template = Template(
"""
{% load crispy_forms_tags %}
{% crispy form form_helper %}
"""
)
c = Context({"form": SampleForm(), "form_helper": form_helper})
html = template.render(c)
assert "button white" in html
assert 'id="submit-id-my-submit"' in html
assert 'id="reset-id-my-reset"' in html
assert 'name="my-hidden"' in html
assert 'id="button-id-my-button"' in html
assert 'class="btn"' in html
assert "btn btn-primary" in html
assert "btn btn-inverse" in html
assert len(re.findall(r"<input[^>]+> <", html)) == 8
def test_invalid_form_method():
form_helper = FormHelper()
with pytest.raises(FormHelpersException):
form_helper.form_method = "superPost"
def test_form_with_helper_without_layout():
form_helper = FormHelper()
form_helper.form_id = "this-form-rocks"
form_helper.form_class = "forms-that-rock"
form_helper.form_method = "GET"
form_helper.form_action = "simpleAction"
form_helper.form_error_title = "ERRORS"
template = Template(
"""
{% load crispy_forms_tags %}
{% crispy testForm form_helper %}
"""
)
# now we render it, with errors
form = SampleForm({"password1": "wargame", "password2": "god"})
form.is_valid()
c = Context({"testForm": form, "form_helper": form_helper})
html = template.render(c)
# Lets make sure everything loads right
assert html.count("<form") == 1
assert "forms-that-rock" in html
assert 'method="get"' in html
assert 'id="this-form-rocks"' in html
assert 'action="%s"' % reverse("simpleAction") in html
assert "ERRORS" in html
assert "<li>Passwords dont match</li>" in html
# now lets remove the form tag and render it again. All the True items above
# should now be false because the form tag is removed.
form_helper.form_tag = False
html = template.render(c)
assert "<form" not in html
assert "forms-that-rock" not in html
assert 'method="get"' not in html
assert 'id="this-form-rocks"' not in html
def test_html5_required():
form = SampleForm()
form.helper.html5_required = True
html = render_crispy_form(form)
# 6 out of 7 fields are required and an extra one for the SplitDateTimeWidget makes 7.
if django.VERSION < (1, 10):
assert html.count('required="required"') == 7
else:
assert len(re.findall(r"\brequired\b", html)) == 7
form = SampleForm()
form.helper.html5_required = False
html = render_crispy_form(form)
def test_media_is_included_by_default_with_bootstrap3():
form = SampleFormWithMedia()
form.helper.template_pack = "bootstrap3"
html = render_crispy_form(form)
assert "test.css" in html
assert "test.js" in html
def test_media_removed_when_include_media_is_false_with_bootstrap3():
form = SampleFormWithMedia()
form.helper.template_pack = "bootstrap3"
form.helper.include_media = False
html = render_crispy_form(form)
assert "test.css" not in html
assert "test.js" not in html
def test_attrs():
form = SampleForm()
form.helper.attrs = {"id": "TestIdForm", "autocomplete": "off"}
html = render_crispy_form(form)
assert 'autocomplete="off"' in html
assert 'id="TestIdForm"' in html
def test_template_context():
helper = FormHelper()
helper.attrs = {
"id": "test-form",
"class": "test-forms",
"action": "submit/test/form",
"autocomplete": "off",
}
node = CrispyFormNode("form", "helper")
context = node.get_response_dict(helper, {}, False)
assert context["form_id"] == "test-form"
assert context["form_attrs"]["id"] == "test-form"
assert "test-forms" in context["form_class"]
assert "test-forms" in context["form_attrs"]["class"]
assert context["form_action"] == "submit/test/form"
assert context["form_attrs"]["action"] == "submit/test/form"
assert context["form_attrs"]["autocomplete"] == "off"
def test_template_context_using_form_attrs():
helper = FormHelper()
helper.form_id = "test-form"
helper.form_class = "test-forms"
helper.form_action = "submit/test/form"
node = CrispyFormNode("form", "helper")
context = node.get_response_dict(helper, {}, False)
assert context["form_id"] == "test-form"
assert context["form_attrs"]["id"] == "test-form"
assert "test-forms" in context["form_class"]
assert "test-forms" in context["form_attrs"]["class"]
assert context["form_action"] == "submit/test/form"
assert context["form_attrs"]["action"] == "submit/test/form"
def test_template_helper_access():
helper = FormHelper()
helper.form_id = "test-form"
assert helper["form_id"] == "test-form"
def test_without_helper():
template = Template(
"""
{% load crispy_forms_tags %}
{% crispy form %}
"""
)
c = Context({"form": SampleForm()})
html = template.render(c)
# Lets make sure everything loads right
assert "<form" in html
assert 'method="post"' in html
assert "action" not in html
def test_template_pack_override_compact(settings):
current_pack = settings.CRISPY_TEMPLATE_PACK
if current_pack == "bootstrap4":
override_pack = "bootstrap3"
else:
override_pack = "bootstrap4"
# {% crispy form 'template_pack_name' %}
template = Template(
"""
{%% load crispy_forms_tags %%}
{%% crispy form "%s" %%}
"""
% override_pack
)
c = Context({"form": SampleForm()})
html = template.render(c)
if current_pack == "bootstrap4":
assert "controls" in html # controls is a bootstrap3 only class
else:
assert "controls" not in html
def test_template_pack_override_verbose(settings):
current_pack = settings.CRISPY_TEMPLATE_PACK
if current_pack == "bootstrap4":
override_pack = "bootstrap3"
else:
override_pack = "bootstrap4"
# {% crispy form helper 'template_pack_name' %}
template = Template(
"""
{%% load crispy_forms_tags %%}
{%% crispy form form_helper "%s" %%}
"""
% override_pack
)
c = Context({"form": SampleForm(), "form_helper": FormHelper()})
html = template.render(c)
assert "controls" not in html
def test_template_pack_override_wrong():
with pytest.raises(TemplateSyntaxError):
Template(
"""
{% load crispy_forms_tags %}
{% crispy form 'foo' %}
"""
)
def test_invalid_helper(settings):
template = Template(
"""
{% load crispy_forms_tags %}
{% crispy form form_helper %}
"""
)
c = Context({"form": SampleForm(), "form_helper": "invalid"})
settings.CRISPY_FAIL_SILENTLY = settings.TEMPLATE_DEBUG = False
with pytest.raises(TypeError):
template.render(c)
def test_formset_with_helper_without_layout():
template = Template(
"""
{% load crispy_forms_tags %}
{% crispy testFormSet formset_helper %}
"""
)
form_helper = FormHelper()
form_helper.form_id = "thisFormsetRocks"
form_helper.form_class = "formsets-that-rock"
form_helper.form_method = "POST"
form_helper.form_action = "simpleAction"
SampleFormSet = formset_factory(SampleForm, extra=3)
testFormSet = SampleFormSet()
c = Context({"testFormSet": testFormSet, "formset_helper": form_helper, "csrf_token": _get_new_csrf_string()})
html = template.render(c)
assert html.count("<form") == 1
assert html.count("csrfmiddlewaretoken") == 1
# Check formset management form
assert "form-TOTAL_FORMS" in html
assert "form-INITIAL_FORMS" in html
assert "form-MAX_NUM_FORMS" in html
assert "formsets-that-rock" in html
assert 'method="post"' in html
assert 'id="thisFormsetRocks"' in html
assert 'action="%s"' % reverse("simpleAction") in html
def test_CSRF_token_POST_form():
form_helper = FormHelper()
template = Template(
"""
{% load crispy_forms_tags %}
{% crispy form form_helper %}
"""
)
# The middleware only initializes the CSRF token when processing a real request
# So using RequestContext or csrf(request) here does not work.
# Instead I set the key `csrf_token` to a CSRF token manually, which `csrf_token` tag uses
c = Context({"form": SampleForm(), "form_helper": form_helper, "csrf_token": _get_new_csrf_string()})
html = template.render(c)
assert "csrfmiddlewaretoken" in html
def test_CSRF_token_GET_form():
form_helper = FormHelper()
form_helper.form_method = "GET"
template = Template(
"""
{% load crispy_forms_tags %}
{% crispy form form_helper %}
"""
)
c = Context({"form": SampleForm(), "form_helper": form_helper, "csrf_token": _get_new_csrf_string()})
html = template.render(c)
assert "csrfmiddlewaretoken" not in html
def test_disable_csrf():
form = SampleForm()
form.helper.disable_csrf = True
html = render_crispy_form(form, form.helper, {"csrf_token": _get_new_csrf_string()})
assert "csrf" not in html
def test_render_unmentioned_fields():
test_form = SampleForm()
test_form.helper.layout = Layout("email")
test_form.helper.render_unmentioned_fields = True
html = render_crispy_form(test_form)
assert html.count("<input") == 8
def test_render_unmentioned_fields_order():
test_form = SampleForm7()
test_form.helper.layout = Layout("email")
test_form.helper.render_unmentioned_fields = True
html = render_crispy_form(test_form)
assert html.count("<input") == 4
assert (
# From layout
html.index('id="div_id_email"')
# From form.Meta.fields
< html.index('id="div_id_password"')
< html.index('id="div_id_password2"')
# From fields
< html.index('id="div_id_is_company"')
)
test_form = SampleForm8()
test_form.helper.layout = Layout("email")
test_form.helper.render_unmentioned_fields = True
html = render_crispy_form(test_form)
assert html.count("<input") == 4
assert (
# From layout
html.index('id="div_id_email"')
# From form.Meta.fields
< html.index('id="div_id_password2"')
< html.index('id="div_id_password"')
# From fields
< html.index('id="div_id_is_company"')
)
def test_render_hidden_fields():
test_form = SampleForm()
test_form.helper.layout = Layout("email")
test_form.helper.render_hidden_fields = True
html = render_crispy_form(test_form)
assert html.count("<input") == 1
# Now hide a couple of fields
for field in ("password1", "password2"):
test_form.fields[field].widget = forms.HiddenInput()
if django.VERSION < (5, 0):
result = "test_render_hidden_fields lt50.html"
else:
result = "test_render_hidden_fields.html"
assert parse_expected(result) == parse_form(test_form)
def test_render_required_fields():
test_form = SampleForm()
test_form.helper.layout = Layout("email")
test_form.helper.render_required_fields = True
html = render_crispy_form(test_form)
assert html.count("<input") == 7
def test_helper_custom_template():
form = SampleForm()
form.helper.template = "custom_form_template.html"
html = render_crispy_form(form)
assert "<h1>Special custom form</h1>" in html
def test_helper_custom_field_template():
form = SampleForm()
form.helper.layout = Layout("password1", "password2")
form.helper.field_template = "custom_field_template.html"
html = render_crispy_form(form)
assert html.count("<h1>Special custom field</h1>") == 2
def test_helper_custom_field_template_no_layout():
form = SampleForm()
form.helper.field_template = "custom_field_template.html"
html = render_crispy_form(form)
for field in form.fields:
assert html.count('id="div_id_%s"' % field) == 1
assert html.count("<h1>Special custom field</h1>") == len(form.fields)
def test_helper_std_field_template_no_layout():
form = SampleForm()
html = render_crispy_form(form)
for field in form.fields:
assert html.count('id="div_id_%s"' % field) == 1
def test_error_text_inline():
form = SampleForm({"email": "invalidemail"})
layout = Layout(
AppendedText("first_name", "wat"),
PrependedText("email", "@"),
PrependedAppendedText("last_name", "@", "wat"),
)
form.helper.layout = layout
form.is_valid()
html = render_crispy_form(form)
help_class = "help-inline"
help_tag_name = "p"
help_class = "help-block"
matches = re.findall(r'<span id="error_\d_\w*" class="%s"' % help_class, html, re.MULTILINE)
assert len(matches) == 3
form = SampleForm({"email": "invalidemail"})
form.helper.layout = layout
form.helper.error_text_inline = False
html = render_crispy_form(form)
help_class = "help-block"
matches = re.findall(r'<{} id="error_\d_\w*" class="{}"'.format(help_tag_name, help_class), html, re.MULTILINE)
assert len(matches) == 3
def test_form_show_labels():
form = SampleForm()
form.helper.layout = Layout(
"password1",
FieldWithButtons("password2", StrictButton("Confirm")),
PrependedText("first_name", "Mr."),
AppendedText("last_name", "@"),
PrependedAppendedText("datetime_field", "on", "secs"),
)
form.helper.form_show_labels = False
html = render_crispy_form(form)
assert html.count("<label") == 0
def test_passthrough_context():
"""
Test to ensure that context is passed through implicitly from outside of
the crispy form into the crispy form templates.
"""
form = SampleForm()
form.helper.template = "custom_form_template_with_context.html"
c = {"prefix": "foo", "suffix": "bar"}
html = render_crispy_form(form, helper=form.helper, context=c)
assert "Got prefix: foo" in html
assert "Got suffix: bar" in html