mirror of
https://github.com/django-components/django-components.git
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ccf02fa316
* chore: util to manage URLs in the codebase * docs: mentiion validate_links and supported_versions in docs * refactor: fix linter errors
633 lines
23 KiB
Python
633 lines
23 KiB
Python
"""
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Here we check that the logic around dependency rendering outputs correct HTML.
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During actual rendering, the HTML is then picked up by the JS-side dependency manager.
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"""
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import re
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from django.template import Context, Template
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from pytest_django.asserts import assertHTMLEqual, assertInHTML
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from django_components import Component, registry, types
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from django_components.testing import djc_test
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from .testutils import setup_test_config
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setup_test_config({"autodiscover": False})
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def to_spaces(s: str):
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return re.compile(r"\s+").sub(" ", s)
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class SimpleComponent(Component):
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template: types.django_html = """
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Variable: <strong>{{ variable }}</strong>
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"""
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def get_template_data(self, args, kwargs, slots, context):
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return {
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"variable": kwargs["variable"],
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"variable2": kwargs.get("variable2", "default"),
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}
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class Media:
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css = "style.css"
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js = "script.js"
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class SimpleComponentNested(Component):
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template: types.django_html = """
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{% load component_tags %}
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<div>
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{% component "inner" variable=variable / %}
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{% slot "default" default / %}
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</div>
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"""
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css: types.css = """
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.my-class {
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color: red;
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}
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"""
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js: types.js = """
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console.log("Hello");
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"""
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class Media:
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css = ["style.css", "style2.css"]
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js = "script2.js"
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class OtherComponent(Component):
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template: types.django_html = """
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XYZ: <strong>{{ variable }}</strong>
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"""
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css: types.css = """
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.xyz {
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color: red;
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}
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"""
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js: types.js = """
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console.log("xyz");
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"""
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class Media:
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css = "xyz1.css"
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js = "xyz1.js"
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class SimpleComponentWithSharedDependency(Component):
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template: types.django_html = """
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Variable: <strong>{{ variable }}</strong>
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"""
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class Media:
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css = ["style.css", "style2.css"]
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js = ["script.js", "script2.js"]
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class MultistyleComponent(Component):
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template: types.django_html = """
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Variable: <strong>{{ variable }}</strong>
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"""
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class Media:
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css = ["style.css", "style2.css"]
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js = ["script.js", "script2.js"]
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@djc_test
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class TestDependencyRendering:
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def test_no_dependencies_when_no_components_used(self):
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registry.register(name="test", component=SimpleComponent)
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template_str: types.django_html = """
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{% load component_tags %}
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{% component_js_dependencies %}
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{% component_css_dependencies %}
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"""
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template = Template(template_str)
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rendered: str = template.render(Context({}))
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# Dependency manager script
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assertInHTML('<script src="django_components/django_components.min.js"></script>', rendered, count=0)
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assert rendered.count("<script") == 1 # 1 placeholder script
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assert rendered.count("<link") == 1 # 1 placeholder link
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assert rendered.count("<style") == 0
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assert "loadedJsUrls" not in rendered
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assert "loadedCssUrls" not in rendered
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assert "toLoadJsTags" not in rendered
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assert "toLoadCssTags" not in rendered
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assert rendered.strip() == (
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'<script name="JS_PLACEHOLDER"></script>\n'
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' <link name="CSS_PLACEHOLDER">'
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)
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def test_no_js_dependencies_when_no_components_used(self):
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registry.register(name="test", component=SimpleComponent)
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template_str: types.django_html = """
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{% load component_tags %}{% component_js_dependencies %}
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"""
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template = Template(template_str)
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rendered = template.render(Context({}))
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# Dependency manager script
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assertInHTML('<script src="django_components/django_components.min.js"></script>', rendered, count=0)
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assert rendered.count("<script") == 1 # 1 placeholder script
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assert rendered.count("<link") == 0 # No CSS
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assert rendered.count("<style") == 0
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assert "loadedJsUrls" not in rendered
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assert "loadedCssUrls" not in rendered
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assert "toLoadJsTags" not in rendered
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assert "toLoadCssTags" not in rendered
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assert rendered.strip() == '<script name="JS_PLACEHOLDER"></script>'
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def test_no_css_dependencies_when_no_components_used(self):
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registry.register(name="test", component=SimpleComponent)
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template_str: types.django_html = """
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{% load component_tags %}{% component_css_dependencies %}
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"""
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template = Template(template_str)
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rendered: str = template.render(Context({}))
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assert rendered.count("<script") == 0 # No JS
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assert rendered.count("<link") == 1 # 1 placeholder link
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assert rendered.count("<style") == 0
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assert rendered.strip() == '<link name="CSS_PLACEHOLDER">'
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def test_single_component_dependencies(self):
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registry.register(name="test", component=SimpleComponent)
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template_str: types.django_html = """
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{% load component_tags %}
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{% component_js_dependencies %}
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{% component_css_dependencies %}
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{% component 'test' variable='foo' / %}
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"""
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template = Template(template_str)
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rendered = template.render(Context({}))
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# Dependency manager script
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assertInHTML('<script src="django_components/django_components.min.js"></script>', rendered, count=1)
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assert rendered.count('<link href="style.css" media="all" rel="stylesheet">') == 1 # Media.css
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assert rendered.count("<link") == 1
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assert rendered.count("<style") == 0
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assert rendered.count("<script") == 3
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# `c3R5bGUuY3Nz` is base64 encoded `style.css`
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# `c2NyaXB0Lmpz` is base64 encoded `style.js`
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assertInHTML(
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"""
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<script type="application/json" data-djc>
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{"loadedCssUrls": ["c3R5bGUuY3Nz"],
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"loadedJsUrls": ["c2NyaXB0Lmpz"],
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"toLoadCssTags": [],
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"toLoadJsTags": []}
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</script>
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""",
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rendered,
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count=1,
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)
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def test_single_component_with_dash_or_slash_in_name(self):
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registry.register(name="te-s/t", component=SimpleComponent)
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template_str: types.django_html = """
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{% load component_tags %}
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{% component_js_dependencies %}
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{% component_css_dependencies %}
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{% component 'te-s/t' variable='foo' / %}
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"""
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template = Template(template_str)
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rendered = template.render(Context({}))
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# Dependency manager script
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assertInHTML('<script src="django_components/django_components.min.js"></script>', rendered, count=1)
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assert rendered.count('<link href="style.css" media="all" rel="stylesheet">') == 1 # Media.css
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assert rendered.count("<link") == 1
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assert rendered.count("<style") == 0
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assert rendered.count("<script") == 3
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# `c3R5bGUuY3Nz` is base64 encoded `style.css`
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# `c2NyaXB0Lmpz` is base64 encoded `style.js`
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assertInHTML(
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"""
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<script type="application/json" data-djc>
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{"loadedCssUrls": ["c3R5bGUuY3Nz"],
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"loadedJsUrls": ["c2NyaXB0Lmpz"],
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"toLoadCssTags": [],
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"toLoadJsTags": []}
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</script>
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""",
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rendered,
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count=1,
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)
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def test_single_component_placeholder_removed(self):
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registry.register(name="test", component=SimpleComponent)
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template_str: types.django_html = """
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{% load component_tags %}
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{% component_js_dependencies %}
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{% component_css_dependencies %}
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{% component 'test' variable='foo' / %}
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"""
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template = Template(template_str)
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rendered = template.render(Context({}))
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assert "_RENDERED" not in rendered
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def test_single_component_css_dependencies(self):
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registry.register(name="test", component=SimpleComponent)
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template_str: types.django_html = """
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{% load component_tags %}{% component_css_dependencies %}
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{% component 'test' variable='foo' / %}
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"""
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template = Template(template_str)
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rendered = template.render(Context({}))
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# Dependency manager script - NOT present
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assertInHTML('<script src="django_components/django_components.min.js"></script>', rendered, count=0)
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assert rendered.count("<link") == 1
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assert rendered.count("<style") == 0
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assert rendered.count("<script") == 0 # No JS scripts
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assert rendered.count('<link href="style.css" media="all" rel="stylesheet">') == 1 # Media.css
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def test_single_component_js_dependencies(self):
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registry.register(name="test", component=SimpleComponent)
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template_str: types.django_html = """
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{% load component_tags %}{% component_js_dependencies %}
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{% component 'test' variable='foo' %}{% endcomponent %}
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"""
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template = Template(template_str)
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rendered = template.render(Context({}))
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# Dependency manager script
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assertInHTML('<script src="django_components/django_components.min.js"></script>', rendered, count=1)
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# CSS NOT included
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assert rendered.count("<link") == 0
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assert rendered.count("<style") == 0
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assert rendered.count("<script") == 3
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# `c3R5bGUuY3Nz` is base64 encoded `style.css`
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# `c2NyaXB0Lmpz` is base64 encoded `style.js`
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assertInHTML(
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"""
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<script type="application/json" data-djc>
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{"loadedCssUrls": ["c3R5bGUuY3Nz"],
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"loadedJsUrls": ["c2NyaXB0Lmpz"],
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"toLoadCssTags": [],
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"toLoadJsTags": []}
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</script>
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""",
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rendered,
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count=1,
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)
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def test_all_dependencies_are_rendered_for_component_with_multiple_dependencies(
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self,
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):
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registry.register(name="test", component=MultistyleComponent)
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template_str: types.django_html = """
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{% load component_tags %}
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{% component_js_dependencies %}
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{% component_css_dependencies %}
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{% component 'test' / %}
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"""
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template = Template(template_str)
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rendered = template.render(Context({}))
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# Dependency manager script
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assertInHTML('<script src="django_components/django_components.min.js"></script>', rendered, count=1)
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assert rendered.count("<link") == 2
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assert rendered.count("<style") == 0
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assert rendered.count("<script") == 4 # 2 scripts belong to the boilerplate
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# Media.css
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assertInHTML(
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"""
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<link href="style.css" media="all" rel="stylesheet">
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<link href="style2.css" media="all" rel="stylesheet">
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""",
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rendered,
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count=1,
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)
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# Media.js
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assertInHTML(
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"""
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<script src="script.js"></script>
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<script src="script2.js"></script>
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""",
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rendered,
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count=1,
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)
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# Base64 encoding:
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# `c3R5bGUuY3Nz` -> `style.css`
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# `c3R5bGUyLmNzcw==` -> `style2.css`
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# `c2NyaXB0Lmpz` -> `script.js`
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# `c2NyaXB0Mi5qcw==` -> `script2.js`
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assertInHTML(
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"""
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<script type="application/json" data-djc>
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{"loadedCssUrls": ["c3R5bGUuY3Nz", "c3R5bGUyLmNzcw=="],
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"loadedJsUrls": ["c2NyaXB0Lmpz", "c2NyaXB0Mi5qcw=="],
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"toLoadCssTags": [],
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"toLoadJsTags": []}
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</script>
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""",
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rendered,
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count=1,
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)
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def test_no_dependencies_with_multiple_unused_components(self):
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registry.register(name="inner", component=SimpleComponent)
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registry.register(name="outer", component=SimpleComponentNested)
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template_str: types.django_html = """
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{% load component_tags %}
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{% component_js_dependencies %}
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{% component_css_dependencies %}
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"""
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template = Template(template_str)
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rendered: str = template.render(Context({}))
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# Dependency manager script
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assertInHTML('<script src="django_components/django_components.min.js"></script>', rendered, count=0)
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assert rendered.count("<script") == 1 # 1 placeholder script
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assert rendered.count("<link") == 1 # 1 placeholder link
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assert rendered.count("<style") == 0
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assert "loadedJsUrls" not in rendered
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assert "loadedCssUrls" not in rendered
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assert "toLoadJsTags" not in rendered
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assert "toLoadCssTags" not in rendered
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assert rendered.strip() == (
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'<script name="JS_PLACEHOLDER"></script>\n'
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' <link name="CSS_PLACEHOLDER">'
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)
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def test_multiple_components_dependencies(self):
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registry.register(name="inner", component=SimpleComponent)
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registry.register(name="outer", component=SimpleComponentNested)
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registry.register(name="other", component=OtherComponent)
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template_str: types.django_html = """
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{% load component_tags %}
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{% component_js_dependencies %}
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{% component_css_dependencies %}
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{% component 'outer' variable='variable' %}
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{% component 'other' variable='variable_inner' / %}
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{% endcomponent %}
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"""
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template = Template(template_str)
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rendered: str = template.render(Context({}))
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# Dependency manager script
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# NOTE: Should be present only ONCE!
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assertInHTML('<script src="django_components/django_components.min.js"></script>', rendered, count=1)
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assert rendered.count("<script") == 7 # 2 scripts belong to the boilerplate
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assert rendered.count("<link") == 3
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assert rendered.count("<style") == 2
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# Components' inlined CSS
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# NOTE: Each of these should be present only ONCE!
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assertInHTML(
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"""
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<style>.my-class { color: red; }</style>
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<style>.xyz { color: red; }</style>
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""",
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rendered,
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count=1,
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)
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# Components' Media.css
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# Order:
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# - "style.css", "style2.css" (from SimpleComponentNested)
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# - "style.css" (from SimpleComponent inside SimpleComponentNested)
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# - "xyz1.css" (from OtherComponent inserted into SimpleComponentNested)
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assertInHTML(
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"""
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<link href="style.css" media="all" rel="stylesheet">
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<link href="style2.css" media="all" rel="stylesheet">
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<link href="xyz1.css" media="all" rel="stylesheet">
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""",
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rendered,
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count=1,
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)
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# Components' Media.js followed by inlined JS
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# Order:
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# - "script2.js" (from SimpleComponentNested)
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# - "script.js" (from SimpleComponent inside SimpleComponentNested)
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# - "xyz1.js" (from OtherComponent inserted into SimpleComponentNested)
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assertInHTML(
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"""
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<script src="script2.js"></script>
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<script src="script.js"></script>
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<script src="xyz1.js"></script>
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<script>console.log("Hello");</script>
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<script>console.log("xyz");</script>
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""",
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rendered,
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count=1,
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)
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# Base64 encoding:
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# `c3R5bGUuY3Nz` -> `style.css`
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# `c3R5bGUyLmNzcw==` -> `style2.css`
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# `eHl6MS5jc3M=` -> `xyz1.css`
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# `L2NvbXBvbmVudHMvY2FjaGUvT3RoZXJDb21wb25lbnRfNjMyOWFlLmNzcw==` -> `/components/cache/OtherComponent_6329ae.css`
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# `L2NvbXBvbmVudHMvY2FjaGUvT3RoZXJDb21wb25lbnRfNjMyOWFlLmpz` -> `/components/cache/OtherComponent_6329ae.js`
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# `L2NvbXBvbmVudHMvY2FjaGUvU2ltcGxlQ29tcG9uZW50TmVzdGVkX2YwMmQzMi5jc3M=` -> `/components/cache/SimpleComponentNested_f02d32.css`
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# `L2NvbXBvbmVudHMvY2FjaGUvU2ltcGxlQ29tcG9uZW50TmVzdGVkX2YwMmQzMi5qcw==` -> `/components/cache/SimpleComponentNested_f02d32.js`
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# `c2NyaXB0Lmpz` -> `script.js`
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# `c2NyaXB0Mi5qcw==` -> `script2.js`
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# `eHl6MS5qcw==` -> `xyz1.js`
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assertInHTML(
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"""
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<script type="application/json" data-djc>
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{"loadedCssUrls": ["L2NvbXBvbmVudHMvY2FjaGUvT3RoZXJDb21wb25lbnRfNjMyOWFlLmNzcw==",
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"L2NvbXBvbmVudHMvY2FjaGUvU2ltcGxlQ29tcG9uZW50TmVzdGVkX2YwMmQzMi5jc3M=",
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"c3R5bGUuY3Nz",
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"c3R5bGUyLmNzcw==",
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"eHl6MS5jc3M="],
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"loadedJsUrls": ["L2NvbXBvbmVudHMvY2FjaGUvT3RoZXJDb21wb25lbnRfNjMyOWFlLmpz",
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"L2NvbXBvbmVudHMvY2FjaGUvU2ltcGxlQ29tcG9uZW50TmVzdGVkX2YwMmQzMi5qcw==",
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"c2NyaXB0Lmpz",
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"c2NyaXB0Mi5qcw==",
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"eHl6MS5qcw=="],
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"toLoadCssTags": [],
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"toLoadJsTags": []}
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</script>
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""",
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rendered,
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count=1,
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)
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def test_multiple_components_all_placeholders_removed(self):
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registry.register(name="inner", component=SimpleComponent)
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registry.register(name="outer", component=SimpleComponentNested)
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registry.register(name="test", component=SimpleComponentWithSharedDependency)
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template_str: types.django_html = """
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{% load component_tags %}
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{% component_js_dependencies %}
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{% component_css_dependencies %}
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{% component 'inner' variable='variable' / %}
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{% component 'outer' variable='variable' / %}
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{% component 'test' variable='variable' / %}
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"""
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template = Template(template_str)
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rendered = template.render(Context({}))
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assert "_RENDERED" not in rendered
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|
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def test_adds_component_id_html_attr_single(self):
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registry.register(name="test", component=SimpleComponent)
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|
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template_str: types.django_html = """
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{% load component_tags %}
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{% component 'test' variable='foo' / %}
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|
"""
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template = Template(template_str)
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rendered = template.render(Context({}))
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|
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assertHTMLEqual(rendered, "Variable: <strong data-djc-id-ca1bc3f>foo</strong>")
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|
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def test_adds_component_id_html_attr_single_multiroot(self):
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class SimpleMultiroot(SimpleComponent):
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template: types.django_html = """
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Variable: <strong>{{ variable }}</strong>
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Variable2: <div>{{ variable }}</div>
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|
Variable3: <span>{{ variable }}</span>
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"""
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|
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|
registry.register(name="test", component=SimpleMultiroot)
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|
|
|
template_str: types.django_html = """
|
|
{% load component_tags %}
|
|
{% component 'test' variable='foo' / %}
|
|
"""
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|
template = Template(template_str)
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|
rendered = template.render(Context({}))
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|
|
|
assertHTMLEqual(
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|
rendered,
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|
"""
|
|
Variable: <strong data-djc-id-ca1bc3f>foo</strong>
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|
Variable2: <div data-djc-id-ca1bc3f>foo</div>
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|
Variable3: <span data-djc-id-ca1bc3f>foo</span>
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|
""",
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|
)
|
|
|
|
# Test that, if multiple components share the same root HTML elements,
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|
# then those elemens will have the `data-djc-id-` attribute added for each component.
|
|
def test_adds_component_id_html_attr_nested(self):
|
|
class SimpleMultiroot(SimpleComponent):
|
|
template: types.django_html = """
|
|
Variable: <strong>{{ variable }}</strong>
|
|
Variable2: <div>{{ variable }}</div>
|
|
Variable3: <span>{{ variable }}</span>
|
|
"""
|
|
|
|
class SimpleOuter(SimpleComponent):
|
|
template: types.django_html = """
|
|
{% load component_tags %}
|
|
{% component 'multiroot' variable='foo' / %}
|
|
<div>Another</div>
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|
"""
|
|
|
|
registry.register(name="multiroot", component=SimpleMultiroot)
|
|
registry.register(name="outer", component=SimpleOuter)
|
|
|
|
template_str: types.django_html = """
|
|
{% load component_tags %}
|
|
{% component 'outer' variable='foo' / %}
|
|
"""
|
|
template = Template(template_str)
|
|
rendered = template.render(Context({}))
|
|
|
|
assertHTMLEqual(
|
|
rendered,
|
|
"""
|
|
Variable: <strong data-djc-id-ca1bc3f data-djc-id-ca1bc41>foo</strong>
|
|
Variable2: <div data-djc-id-ca1bc3f data-djc-id-ca1bc41>foo</div>
|
|
Variable3: <span data-djc-id-ca1bc3f data-djc-id-ca1bc41>foo</span>
|
|
<div data-djc-id-ca1bc3f>Another</div>
|
|
""",
|
|
)
|
|
|
|
# `data-djc-id-` attribute should be added on each instance in the RESULTING HTML.
|
|
# So if in a loop, each iteration creates a new component, and each of those should
|
|
# have a unique `data-djc-id-` attribute.
|
|
def test_adds_component_id_html_attr_loops(self):
|
|
class SimpleMultiroot(SimpleComponent):
|
|
template: types.django_html = """
|
|
Variable: <strong>{{ variable }}</strong>
|
|
Variable2: <div>{{ variable }}</div>
|
|
Variable3: <span>{{ variable }}</span>
|
|
"""
|
|
|
|
class SimpleOuter(SimpleComponent):
|
|
template: types.django_html = """
|
|
{% load component_tags %}
|
|
{% component 'multiroot' variable='foo' / %}
|
|
<div>Another</div>
|
|
"""
|
|
|
|
registry.register(name="multiroot", component=SimpleMultiroot)
|
|
registry.register(name="outer", component=SimpleOuter)
|
|
|
|
template_str: types.django_html = """
|
|
{% load component_tags %}
|
|
{% for i in lst %}
|
|
{% component 'outer' variable='foo' / %}
|
|
{% endfor %}
|
|
"""
|
|
template = Template(template_str)
|
|
rendered = template.render(Context({"lst": range(3)}))
|
|
|
|
assertHTMLEqual(
|
|
rendered,
|
|
"""
|
|
Variable: <strong data-djc-id-ca1bc3f data-djc-id-ca1bc41>foo</strong>
|
|
Variable2: <div data-djc-id-ca1bc3f data-djc-id-ca1bc41>foo</div>
|
|
Variable3: <span data-djc-id-ca1bc3f data-djc-id-ca1bc41>foo</span>
|
|
<div data-djc-id-ca1bc3f>Another</div>
|
|
|
|
Variable: <strong data-djc-id-ca1bc42 data-djc-id-ca1bc43>foo</strong>
|
|
Variable2: <div data-djc-id-ca1bc42 data-djc-id-ca1bc43>foo</div>
|
|
Variable3: <span data-djc-id-ca1bc42 data-djc-id-ca1bc43>foo</span>
|
|
<div data-djc-id-ca1bc42>Another</div>
|
|
|
|
Variable: <strong data-djc-id-ca1bc44 data-djc-id-ca1bc45>foo</strong>
|
|
Variable2: <div data-djc-id-ca1bc44 data-djc-id-ca1bc45>foo</div>
|
|
Variable3: <span data-djc-id-ca1bc44 data-djc-id-ca1bc45>foo</span>
|
|
<div data-djc-id-ca1bc44>Another</div>
|
|
""",
|
|
)
|