1 files changed, 86 insertions, 0 deletions
diff --git a/test_changelog.py b/test_changelog.py
new file mode 100644
index 0000000..b1454b8
--- /dev/null
+++ b/test_changelog.py
@@ -0,0 +1,86 @@
+#!/usr/bin/env python3
+# Copyright (C) 2026 Danilo M. <danix@danix.xyz>
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License version 2 as
+# published by the Free Software Foundation.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+
+"""Self-check: run `python3 test_changelog.py`. Fakes the mirror, exercises
+parsing, caching and the stale fallback."""
+
+import io
+import urllib.request
+
+import slackware_changelog as c
+
+SAMPLE = """Mon Sep  7 22:56:39 UTC 2026
+a/util-linux-2.42.3-x86_64-1.txz:  Upgraded.
+  This update fixes bugs and security issues.
+  For more information, see:
+    https://www.cve.org/CVERecord?id=CVE-2026-76642
+    https://www.cve.org/CVERecord?id=CVE-2026-78410
+  (* Security fix *)
+l/cryptopp-8.9.0-x86_64-3.txz:  Rebuilt.
+  Fixed library location. Thanks to Petri Kaukasoina.
+n/foo-1.0-x86_64-1.txz:  Added.
+n/bar-1.0-x86_64-1.txz:  Removed.
++--------------------------+
+Sun Sep  6 00:00:00 UTC 2026
+a/should-not-appear-1.0-x86_64-1.txz:  Upgraded.
+"""
+
+fail = [False]
+
+
+def fake_urlopen(url, timeout=0):
+    if fail[0]:
+        raise OSError("mirror down")
+    return io.BytesIO(SAMPLE.encode())
+
+
+urllib.request.urlopen = fake_urlopen
+
+d = c.parse(SAMPLE)
+assert d["date"] == "Mon Sep  7 22:56:39 UTC 2026", d["date"]
+assert (d["packages"], d["upgraded"], d["rebuilt"], d["added"], d["removed"]) == (4, 1, 1, 1, 1), d
+assert d["security"] == 1, d
+assert d["cves"] == ["CVE-2026-76642", "CVE-2026-78410"], d["cves"]
+assert "should-not-appear" not in d["entry"], "the next entry leaked in"
+assert d["package_list"][0] == {"name": "a/util-linux-2.42.3-x86_64-1.txz",
+                                "action": "upgraded"}, d["package_list"][0]
+assert "1 upgraded" in d["summary"], d["summary"]
+
+# An indented note that ends in a word plus a period is not a package line.
+assert all("Thanks to" not in p["name"] for p in d["package_list"]), d["package_list"]
+
+# Cache holds, and a failing refresh keeps serving the last good entry.
+first = c.fetch()
+assert first["date"] == d["date"]
+fail[0] = True
+stale = c.fetch(force=True)
+assert stale["date"] == d["date"], "lost the cached entry on a failed refresh"
+assert "mirror down" in stale["stale"], stale.get("stale")
+
+# /top: flat keys, prefix and .txz stripped, overflow line when truncated.
+t = c.top(d, n=2)
+assert t["pkg1"] == "util-linux-2.42.3-x86_64-1 - upgraded", t["pkg1"]
+assert t["pkg3"] == "... and 2 more", t
+assert t["packages"] == 4 and t["date"] == d["date"], t
+assert "pkg4" not in t, t
+assert "pkg5" not in c.top(d, n=10), "overflow line on a complete list"
+assert c.top(d, n=10)["pkg4"] == "bar-1.0-x86_64-1 - removed", c.top(d, n=10)
+
+page = c.render(c._cache["data"])
+assert "Sep  7" in page and "util-linux" in page
+assert "<script" not in page.lower(), "changelog text must not reach the page as markup"
+
+print("ok")