Add tests for encoded anchors for file: and http:

I started with a test of urlencoded anchors, assuming at the URL might
have a urlencoded anchor, but the actual anchor in the HTML would NOT be
urlencoded.

tests/checker/data/http_anchor.html.result

@@ -7,7 +7,7 @@ url http_anchor.html#bad
 cache key http://localhost:%(port)d/%(datadir)s/http_anchor.html#bad
 real url http://localhost:%(port)d/%(datadir)s/http_anchor.html#bad
 name a_bad
-warning Anchor `bad' not found. Available anchors: `good'.
+warning Anchor `bad' (decoded: `bad') not found. Available anchors: `good'.
 valid
 
 url http_anchor.html#good

tests/checker/data/urlencoding_anchor.html

@@ -0,0 +1,25 @@
+<!-- targets -->
+<a name="good">Good target</a>
+<a name="with_pipes_|_and_parentheses_(and—em-dashes)">Needs-encoded target #1</a>
+<a name="another_with_pipes_|_and_parentheses_(and—em-dashes)">Needs-encoded target #2</a>
+<a name="partially_|_(encoded_em—dash)">Target for partially-encoded testing</a>
+
+<!-- simple anchors -->
+<a href="urlencoding_anchor.html">No anchor, will not be tested</a>
+<a href="urlencoding_anchor.html#good">Good anchor</a>
+<a href="urlencoding_anchor.html#bad">Bad anchor</a>
+
+<!-- different encodings of the same complex anchor -->
+<a href="urlencoding_anchor.html#with_pipes_|_and_parentheses_(and—em-dashes)">Non-encoded anchor</a>
+<a href="urlencoding_anchor.html#with_pipes_|_and_parentheses_%28and%E2%80%94em-dashes%29">Partially-encoded version of the same anchor</a>
+<a href="urlencoding_anchor.html#with_pipes_%7C_and_parentheses_%28and%E2%80%94em-dashes%29">Fully-encoded version of the same anchor</a>
+
+<!-- just another complex anchor -->
+<a href="urlencoding_anchor.html#another_with_pipes_%7C_and_parentheses_%28and%E2%80%94em-dashes%29">Distinct encoded anchor</a>
+
+<!-- bad anchor, encoded two ways -->
+<a href="urlencoding_anchor.html#bad_|_%28and%E2%80%94em-dashes%29">Bad encoded anchor, partially encoded</a>
+<a href="urlencoding_anchor.html#bad_%7C_%28and%E2%80%94em-dashes%29">Bad encoded anchor, fully encoded</a>
+
+<!-- stand-alone test for partially-encoded anchor -->
+<a href="urlencoding_anchor.html#partially_%7C_(encoded_em—dash)">Partially-encoded anchor, for testing</a>

tests/checker/data/urlencoding_anchor.html.file.result

@@ -0,0 +1,42 @@
+url file://%(curdir)s/%(datadir)s/urlencoding_anchor.html
+cache key file://%(curdir)s/%(datadir)s/urlencoding_anchor.html
+real url file://%(curdir)s/%(datadir)s/urlencoding_anchor.html
+valid
+
+url urlencoding_anchor.html#another_with_pipes_%%7C_and_parentheses_%%28and%%E2%%80%%94em-dashes%%29
+cache key file://%(curdir)s/%(datadir)s/urlencoding_anchor.html#another_with_pipes_%%7C_and_parentheses_(and%%E2%%80%%94em-dashes)
+real url file://%(curdir)s/%(datadir)s/urlencoding_anchor.html#another_with_pipes_%%7C_and_parentheses_(and%%E2%%80%%94em-dashes)
+name Distinct encoded anchor
+valid
+
+url urlencoding_anchor.html#bad
+cache key file://%(curdir)s/%(datadir)s/urlencoding_anchor.html#bad
+real url file://%(curdir)s/%(datadir)s/urlencoding_anchor.html#bad
+name Bad anchor
+warning Anchor `bad' (decoded: `bad') not found. Available anchors: `another_with_pipes_|_and_parentheses_(and—em-dashes)', `good', `partially_|_(encoded_em—dash)', `with_pipes_|_and_parentheses_(and—em-dashes)'.
+valid
+
+url urlencoding_anchor.html#bad_|_%%28and%%E2%%80%%94em-dashes%%29
+cache key file://%(curdir)s/%(datadir)s/urlencoding_anchor.html#bad_%%7C_(and%%E2%%80%%94em-dashes)
+real url file://%(curdir)s/%(datadir)s/urlencoding_anchor.html#bad_%%7C_(and%%E2%%80%%94em-dashes)
+name Bad encoded anchor, partially encoded
+warning Anchor `bad_%%7C_(and%%E2%%80%%94em-dashes)' (decoded: `bad_|_(and—em-dashes)') not found. Available anchors: `another_with_pipes_|_and_parentheses_(and—em-dashes)', `good', `partially_|_(encoded_em—dash)', `with_pipes_|_and_parentheses_(and—em-dashes)'.
+valid
+
+url urlencoding_anchor.html#good
+cache key file://%(curdir)s/%(datadir)s/urlencoding_anchor.html#good
+real url file://%(curdir)s/%(datadir)s/urlencoding_anchor.html#good
+name Good anchor
+valid
+
+url urlencoding_anchor.html#partially_%%7C_(encoded_em—dash)
+cache key file://%(curdir)s/%(datadir)s/urlencoding_anchor.html#partially_%%7C_(encoded_em%%E2%%80%%94dash)
+real url file://%(curdir)s/%(datadir)s/urlencoding_anchor.html#partially_%%7C_(encoded_em%%E2%%80%%94dash)
+name Partially-encoded anchor, for testing
+valid
+
+url urlencoding_anchor.html#with_pipes_|_and_parentheses_(and—em-dashes)
+cache key file://%(curdir)s/%(datadir)s/urlencoding_anchor.html#with_pipes_%%7C_and_parentheses_(and%%E2%%80%%94em-dashes)
+real url file://%(curdir)s/%(datadir)s/urlencoding_anchor.html#with_pipes_%%7C_and_parentheses_(and%%E2%%80%%94em-dashes)
+name Non-encoded anchor
+valid

tests/checker/data/urlencoding_anchor.html.result

@@ -0,0 +1,42 @@
+url http://localhost:%(port)d/%(datadir)s/urlencoding_anchor.html
+cache key http://localhost:%(port)d/%(datadir)s/urlencoding_anchor.html
+real url http://localhost:%(port)d/%(datadir)s/urlencoding_anchor.html
+valid
+
+url urlencoding_anchor.html#another_with_pipes_%%7C_and_parentheses_%%28and%%E2%%80%%94em-dashes%%29
+cache key http://localhost:%(port)d/%(datadir)s/urlencoding_anchor.html#another_with_pipes_%%7C_and_parentheses_(and%%E2%%80%%94em-dashes)
+real url http://localhost:%(port)d/%(datadir)s/urlencoding_anchor.html#another_with_pipes_%%7C_and_parentheses_(and%%E2%%80%%94em-dashes)
+name Distinct encoded anchor
+valid
+
+url urlencoding_anchor.html#bad
+cache key http://localhost:%(port)d/%(datadir)s/urlencoding_anchor.html#bad
+real url http://localhost:%(port)d/%(datadir)s/urlencoding_anchor.html#bad
+name Bad anchor
+warning Anchor `bad' (decoded: `bad') not found. Available anchors: `another_with_pipes_|_and_parentheses_(and—em-dashes)', `good', `partially_|_(encoded_em—dash)', `with_pipes_|_and_parentheses_(and—em-dashes)'.
+valid
+
+url urlencoding_anchor.html#bad_|_%%28and%%E2%%80%%94em-dashes%%29
+cache key http://localhost:%(port)d/%(datadir)s/urlencoding_anchor.html#bad_%%7C_(and%%E2%%80%%94em-dashes)
+real url http://localhost:%(port)d/%(datadir)s/urlencoding_anchor.html#bad_%%7C_(and%%E2%%80%%94em-dashes)
+name Bad encoded anchor, partially encoded
+warning Anchor `bad_%%7C_(and%%E2%%80%%94em-dashes)' (decoded: `bad_|_(and—em-dashes)') not found. Available anchors: `another_with_pipes_|_and_parentheses_(and—em-dashes)', `good', `partially_|_(encoded_em—dash)', `with_pipes_|_and_parentheses_(and—em-dashes)'.
+valid
+
+url urlencoding_anchor.html#good
+cache key http://localhost:%(port)d/%(datadir)s/urlencoding_anchor.html#good
+real url http://localhost:%(port)d/%(datadir)s/urlencoding_anchor.html#good
+name Good anchor
+valid
+
+url urlencoding_anchor.html#partially_%%7C_(encoded_em—dash)
+cache key http://localhost:%(port)d/%(datadir)s/urlencoding_anchor.html#partially_%%7C_(encoded_em%%E2%%80%%94dash)
+real url http://localhost:%(port)d/%(datadir)s/urlencoding_anchor.html#partially_%%7C_(encoded_em%%E2%%80%%94dash)
+name Partially-encoded anchor, for testing
+valid
+
+url urlencoding_anchor.html#with_pipes_|_and_parentheses_(and—em-dashes)
+cache key http://localhost:%(port)d/%(datadir)s/urlencoding_anchor.html#with_pipes_%%7C_and_parentheses_(and%%E2%%80%%94em-dashes)
+real url http://localhost:%(port)d/%(datadir)s/urlencoding_anchor.html#with_pipes_%%7C_and_parentheses_(and%%E2%%80%%94em-dashes)
+name Non-encoded anchor
+valid

tests/checker/test_anchor.py

@@ -20,22 +20,23 @@ from . import LinkCheckTest
 from .httpserver import HttpServerTest
 
 
-class TestAnchor(LinkCheckTest):
+class TestFileAnchor(LinkCheckTest):
     """
-    Test anchor checking of HTML pages.
+    Test anchor checking of HTML files.
     """
 
-    def test_anchor(self):
+    def test_anchor_file(self):
         confargs = {"enabledplugins": ["AnchorCheck"]}
         anchor = "broken"
         url = "file://%(curdir)s/%(datadir)s/anchor.html#%(anchor)s" % self.get_attrs(
                anchor=anchor)
         nurl = self.norm(url)
         resultlines = [
-            "url %s" % url,
-            "cache key %s" % nurl,
-            "real url %s" % nurl,
-            "warning Anchor `%s' not found. Available anchors: `myid:'." % anchor,
+            f"url {url}",
+            f"cache key {nurl}",
+            f"real url {nurl}",
+            f"warning Anchor `{anchor}' (decoded: `{anchor}') not found."
+            " Available anchors: `myid:'.",
             "valid",
         ]
         self.direct(url, resultlines, confargs=confargs)
@@ -46,11 +47,35 @@ class TestHttpAnchor(HttpServerTest):
     Test checking of HTML pages containing links to anchors served over http.
     """
 
-    def test_anchor_html(self):
+    def test_anchor_http(self):
         confargs = dict(enabledplugins=["AnchorCheck"], recursionlevel=1)
         self.file_test("http_anchor.html", confargs=confargs)
 
 
+class TestEncodedAnchors(HttpServerTest):
+    """Test HTML pages containing urlencoded links to anchors"""
+
+    def test_anchor_encoded_http(self):
+        """
+        http://
+        """
+        confargs = dict(enabledplugins=["AnchorCheck"], recursionlevel=1)
+        self.file_test("urlencoding_anchor.html", confargs=confargs)
+
+    def test_anchor_encoded_file(self):
+        """
+        file://
+        This should have identical behavior as http://
+        """
+        filename = "urlencoding_anchor.html"
+        confargs = {"enabledplugins": ["AnchorCheck"]}
+        url = "file://%(curdir)s/%(datadir)s/%(filename)s" % self.get_attrs(
+               filename=filename)
+        # get results from the special result file that has `.file.` in its name
+        resultlines = self.get_resultlines(f"{filename}.file")
+        self.direct(url, resultlines, recursionlevel=1, confargs=confargs)
+
+
 class TestAnchorsAcrossMultipleFiles(LinkCheckTest):
     """Test anchors when there are multiple files"""