feat: let a site choose which suffix the plugin treats as Mews

pelican-mews/tests/test_mews.py

@@ -28,6 +28,44 @@ def test_written_page_matches_expected(tmp_path, case):
     assert normalize(page) == normalize(expected)
 
 
+def test_a_site_can_choose_its_own_suffix(tmp_path):
+    """A site that is Mews throughout writes .html, so servers send text/html."""
+    output = build_case(
+        "basic",
+        tmp_path,
+        MEWS_SUFFIX=".html",
+        PAGE_SAVE_AS="{slug}.html",
+        PAGE_URL="{slug}.html",
+        # With .html the plugin sees every page Pelican writes, including the
+        # index, tags and archives it falls back to when the theme has no
+        # template for them. Those fallbacks are HTML, not XML, so a site
+        # using .html has to give every direct template a Mews template or
+        # switch the lot off, as here.
+        DIRECT_TEMPLATES=[],
+    )
+    page = (output / "page.html").read_bytes()
+    assert normalize(page) == normalize(
+        (FIXTURES / "basic" / "expected.xhtml").read_bytes()
+    )
+
+
+def test_the_default_suffix_leaves_other_html_alone(tmp_path):
+    """Left at its default the plugin must not touch a plain HTML page."""
+    output = build_case(
+        "strip",
+        tmp_path,
+        PAGE_SAVE_AS="{slug}.html",
+        PAGE_URL="{slug}.html",
+        INDEX_SAVE_AS="",
+    )
+    # The strip fixture carries a <span>, a class and a comment, all three of
+    # which the plugin removes. Untouched, every one of them survives.
+    written = (output / "page.html").read_bytes()
+    assert b"<span" in written
+    assert b'class="big"' in written
+    assert b"stray comment" in written
+
+
 @pytest.mark.parametrize("case", ["basic", "strip", "cssdir", "structure"])
 def test_css_is_copied(tmp_path, case):
     """The bundled stylesheet lands under the configured directory."""