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import pytest
from django.template import TemplateSyntaxError
from . import imagegenerators # noqa
from .utils import clear_imagekit_cache, get_html_attrs, render_tag
def test_img_tag():
ttag = r"""{% thumbnail '100x100' img %}"""
clear_imagekit_cache()
attrs = get_html_attrs(ttag)
expected_attrs = {'src', 'width', 'height'}
assert set(attrs.keys()) == expected_attrs
for k in expected_attrs:
assert attrs[k].strip() != ''
def test_img_tag_anchor():
ttag = r"""{% thumbnail '100x100' img anchor='c' %}"""
clear_imagekit_cache()
attrs = get_html_attrs(ttag)
expected_attrs = {'src', 'width', 'height'}
assert set(attrs.keys()) == expected_attrs
for k in expected_attrs:
assert attrs[k].strip() != ''
def test_img_tag_attrs():
ttag = r"""{% thumbnail '100x100' img -- alt="Hello" %}"""
clear_imagekit_cache()
attrs = get_html_attrs(ttag)
assert attrs.get('alt') == 'Hello'
def test_dangling_html_attrs_delimiter():
ttag = r"""{% thumbnail '100x100' img -- %}"""
with pytest.raises(TemplateSyntaxError):
render_tag(ttag)
def test_not_enough_args():
ttag = r"""{% thumbnail '100x100' %}"""
with pytest.raises(TemplateSyntaxError):
render_tag(ttag)
def test_too_many_args():
ttag = r"""{% thumbnail 'generator_id' '100x100' img 'extra' %}"""
with pytest.raises(TemplateSyntaxError):
render_tag(ttag)
def test_html_attrs_assignment():
"""
You can either use thumbnail as an assignment tag or specify html attrs,
but not both.
"""
ttag = r"""{% thumbnail '100x100' img -- alt="Hello" as th %}"""
with pytest.raises(TemplateSyntaxError):
render_tag(ttag)
def test_assignment_tag():
ttag = r"""{% thumbnail '100x100' img as th %}{{ th.url }}"""
clear_imagekit_cache()
html = render_tag(ttag)
assert html != ''
def test_assignment_tag_anchor():
ttag = r"""{% thumbnail '100x100' img anchor='c' as th %}{{ th.url }}"""
clear_imagekit_cache()
html = render_tag(ttag)
assert html != ''
def test_single_dimension():
ttag = r"""{% thumbnail '100x' img as th %}{{ th.width }}"""
clear_imagekit_cache()
html = render_tag(ttag)
assert html == '100'
def test_alternate_generator():
ttag = r"""{% thumbnail '1pxsq' '100x' img as th %}{{ th.width }}"""
clear_imagekit_cache()
html = render_tag(ttag)
assert html == '1'
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