From d071b4177c1a3897f4682e245046a45f362b6ac5 Mon Sep 17 00:00:00 2001
From: Toni Uhlig <matzeton@googlemail.com>
Date: Fri, 1 Oct 2021 14:21:33 +0200
Subject: Squashed 'deps/md4c/' content from commit 7f05330

git-subtree-dir: deps/md4c
git-subtree-split: 7f0533068b4319d8cb3d0f33ca9aa66a857734a6
---
 test/pathological_tests.py | 125 +++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 125 insertions(+)
 create mode 100755 test/pathological_tests.py

(limited to 'test/pathological_tests.py')

diff --git a/test/pathological_tests.py b/test/pathological_tests.py
new file mode 100755
index 0000000..ad9252e
--- /dev/null
+++ b/test/pathological_tests.py
@@ -0,0 +1,125 @@
+#!/usr/bin/env python3
+# -*- coding: utf-8 -*-
+
+import re
+import argparse
+import sys
+import platform
+from cmark import CMark
+from timeit import default_timer as timer
+
+if __name__ == "__main__":
+    parser = argparse.ArgumentParser(description='Run cmark tests.')
+    parser.add_argument('-p', '--program', dest='program', nargs='?', default=None,
+            help='program to test')
+    parser.add_argument('--library-dir', dest='library_dir', nargs='?',
+            default=None, help='directory containing dynamic library')
+    args = parser.parse_args(sys.argv[1:])
+
+cmark = CMark(prog=args.program, library_dir=args.library_dir)
+
+# list of pairs consisting of input and a regex that must match the output.
+pathological = {
+    # note - some pythons have limit of 65535 for {num-matches} in re.
+    "U+0000":
+                 ("abc\u0000de\u0000",
+                  re.compile("abc\ufffd?de\ufffd?")),
+    "U+FEFF (Unicode BOM)":
+                 ("\ufefffoo",
+                  re.compile("<p>foo</p>")),
+    "nested strong emph":
+                (("*a **a " * 65000) + "b" + (" a** a*" * 65000),
+                 re.compile("(<em>a <strong>a ){65000}b( a</strong> a</em>){65000}")),
+    "many emph closers with no openers":
+                 (("a_ " * 65000),
+                  re.compile("(a[_] ){64999}a_")),
+    "many emph openers with no closers":
+                 (("_a " * 65000),
+                  re.compile("(_a ){64999}_a")),
+    "many 3-emph openers with no closers":
+                 (("a***" * 65000),
+                  re.compile("(a<em><strong>a</strong></em>){32500}")),
+    "many link closers with no openers":
+                 (("a]" * 65000),
+                  re.compile("(a\]){65000}")),
+    "many link openers with no closers":
+                 (("[a" * 65000),
+                  re.compile("(\[a){65000}")),
+    "mismatched openers and closers":
+                 (("*a_ " * 50000),
+                  re.compile("([*]a[_] ){49999}[*]a_")),
+    "openers and closers multiple of 3":
+                 (("a**b" + ("c* " * 50000)),
+                  re.compile("a[*][*]b(c[*] ){49999}c[*]")),
+    "link openers and emph closers":
+                 (("[ a_" * 50000),
+                  re.compile("(\[ a_){50000}")),
+    "hard link/emph case":
+                 ("**x [a*b**c*](d)",
+                  re.compile("\\*\\*x <a href=\"d\">a<em>b\\*\\*c</em></a>")),
+    "nested brackets":
+                 (("[" * 50000) + "a" + ("]" * 50000),
+                  re.compile("\[{50000}a\]{50000}")),
+    "nested block quotes":
+                 ((("> " * 50000) + "a"),
+                  re.compile("(<blockquote>\r?\n){50000}")),
+    "backticks":
+                 ("".join(map(lambda x: ("e" + "`" * x), range(1,1000))),
+                  re.compile("^<p>[e`]*</p>\r?\n$")),
+    "many links":
+                 ("[t](/u) " * 50000,
+                  re.compile("(<a href=\"/u\">t</a> ?){50000}")),
+    "many references":
+                 ("".join(map(lambda x: ("[" + str(x) + "]: u\n"), range(1,20000 * 16))) + "[0] " * 20000,
+                  re.compile("(\[0\] ){19999}")),
+    "deeply nested lists":
+                 ("".join(map(lambda x: ("  " * x + "* a\n"), range(0,1000))),
+                  re.compile("<ul>\r?\n(<li>a<ul>\r?\n){999}<li>a</li>\r?\n</ul>\r?\n(</li>\r?\n</ul>\r?\n){999}")),
+    "many html openers and closers":
+                 (("<>" * 50000),
+                  re.compile("(&lt;&gt;){50000}")),
+    "many html proc. inst. openers":
+                 (("x" + "<?" * 50000),
+                  re.compile("x(&lt;\\?){50000}")),
+    "many html CDATA openers":
+                 (("x" + "<![CDATA[" * 50000),
+                  re.compile("x(&lt;!\\[CDATA\\[){50000}")),
+    "many backticks and escapes":
+                 (("\\``" * 50000),
+                  re.compile("(``){50000}")),
+    "many broken link titles":
+                 (("[ (](" * 50000),
+                  re.compile("(\[ \(\]\(){50000}")),
+    "broken thematic break":
+                 (("* " * 50000 + "a"),
+                  re.compile("<ul>\r?\n(<li><ul>\r?\n){49999}<li>a</li>\r?\n</ul>\r?\n(</li>\r?\n</ul>\r?\n){49999}"))
+    }
+
+whitespace_re = re.compile('/s+/')
+passed = 0
+errored = 0
+failed = 0
+
+#print("Testing pathological cases:")
+for description in pathological:
+    (inp, regex) = pathological[description]
+    start = timer()
+    [rc, actual, err] = cmark.to_html(inp)
+    end = timer()
+    if rc != 0:
+        errored += 1
+        print('{:35} [ERRORED (return code %d)]'.format(description, rc))
+        print(err)
+    elif regex.search(actual):
+        print('{:35} [PASSED] {:.3f} secs'.format(description, end-start))
+        passed += 1
+    else:
+        print('{:35} [FAILED]'.format(description))
+        print(repr(actual))
+        failed += 1
+
+print("%d passed, %d failed, %d errored" % (passed, failed, errored))
+if (failed == 0 and errored == 0):
+    exit(0)
+else:
+    exit(1)
-- 
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