Merge pull request #1921 from kevinbackhouse/FixIssue1920

Fix UBSAN failure caused by left-shift of negative number

tests/bugfixes/github/test_issue_1920.py

@@ -0,0 +1,17 @@
+# -*- coding: utf-8 -*-
+
+from system_tests import CaseMeta, path, check_no_ASAN_UBSAN_errors
+
+class PentaxMakerNotePrintTimeSignedLeftShift(metaclass=CaseMeta):
+    """
+    Regression test for the bug described in:
+    https://github.com/Exiv2/exiv2/issues/1920
+    """
+    url = "https://github.com/Exiv2/exiv2/issues/1920"
+
+    filename = path("$data_path/issue_1920_poc.tiff")
+    commands = ["$exiv2 -q -Pt $filename"]
+    stderr = [""]
+    retval = [0]
+
+    compare_stdout = check_no_ASAN_UBSAN_errors