Add tests for govuk link button template tag

lite_content/lite_internal_frontend/strings.py

@@ -13,6 +13,7 @@
     queues,  # noqa
     picklists,  # noqa
     routing_rules,  # noqa
+    tests,  # noqa
 )  # noqa
 
 # Buttons

lite_content/lite_internal_frontend/tests.py

@@ -0,0 +1,2 @@
+class TestPage:
+    BUTTON = "Test Button"

unit_tests/conftest.py

@@ -2602,12 +2602,27 @@ def _create_files(*files):
     return _create_files
 
 
-@pytest.fixture
+@pytest.fixture()
+def authorized_client(client):
+    return client
+
+
+@pytest.fixture()
 def mock_request(rf, authorized_client):
     request = rf.get("/")
     request.session = authorized_client.session
     request.requests_session = requests.Session()
-    yield request
+    return request
+
+
+@pytest.fixture()
+def render_template_string(mock_request):
+    def _render_template_string(template_string):
+        template = Template(template_string)
+        context = RequestContext(mock_request, {})
+        return template.render(context)
+
+    return _render_template_string
 
 
 @pytest.fixture()

unit_tests/lite_forms/templatetags/test_custom_tags.py

@@ -1,5 +1,7 @@
 import pytest
 
+from pytest_django.asserts import assertHTMLEqual
+
 from lite_forms.templatetags import custom_tags
 
 
@@ -12,3 +14,32 @@
 )
 def test_file_type(filename, expected):
     assert expected == custom_tags.file_type(filename)
+
+
+@pytest.mark.parametrize(
+    "input, expected",
+    [
+        (
+            "{% govuk_link_button text='tests.TestPage.BUTTON' url='core:index' %}",
+            '<a href="/" role="button" draggable="false" class="govuk-button" data-module="govuk-button">Test Button</a>',
+        ),
+        (
+            "{% govuk_link_button text='tests.TestPage.BUTTON' url='core:index' id='test-id' classes='govuk-button--secondary' %}",
+            '<a id="button-test-id" href="/" role="button" draggable="false" class="govuk-button govuk-button--secondary" data-module="govuk-button">Test Button</a>',
+        ),
+        (
+            "{% govuk_link_button text='tests.TestPage.BUTTON' url='core:index' show_chevron=True %}",
+            '<a href="/" role="button" draggable="false" class="govuk-button" data-module="govuk-button">Test Button<svg aria-hidden="true" class="govuk-button__start-icon" focusable="false" height="15" viewbox="0 0 33 43" width="13" xmlns="http://www.w3.org/2000/svg"><path d="M0 0h13l20 20-20 20H0l20-20z" fill="currentColor"></svg></a>',
+        ),
+        (
+            "{% govuk_link_button text='tests.TestPage.BUTTON' url='core:index' query_params='?foo=bar' %}",
+            '<a href="/?foo=bar" role="button" draggable="false" class="govuk-button" data-module="govuk-button">Test Button</a>',
+        ),
+        (
+            "{% govuk_link_button text='tests.TestPage.BUTTON' url='core:index' hidden=True%}",
+            '<a href="/" role="button" draggable="false" class="govuk-button" data-module="govuk-button" style="display: none;">Test Button</a>',
+        ),
+    ],
+)
+def test_govuk_link_button(render_template_string, input, expected):
+    assertHTMLEqual(render_template_string(input), expected)