Add POC + regression test.

Note that we override here the method check_no_ASAN_UBSAN_errors to also
analyze the last two lines of got_stderr.

tests/bugfixes/github/test_issue_283.py

@@ -0,0 +1,31 @@
+# -*- coding: utf-8 -*-
+
+import system_tests
+import os.path
+
+class TestFirstPoC(metaclass=system_tests.CaseMeta):
+    """
+    Regression test for the bug described in:
+    https://github.com/Exiv2/exiv2/issues/283
+    """
+    url = "https://github.com/Exiv2/exiv2/issues/283"
+
+    def check_no_ASAN_UBSAN_errors(self, i, command, got_stderr, expected_stderr):
+        """ Override of system_tests.check_no_ASAN_UBSAN_errors for this particular test case.
+
+        Here we want to also check that the two last lines of got_stderr have the expected_stderr
+        """
+
+        system_tests.check_no_ASAN_UBSAN_errors(self, i, command, got_stderr, expected_stderr)
+        self.assertListEqual(expected_stderr.splitlines(), got_stderr.splitlines()[-2:])
+
+    filename = os.path.join("$data_path", "pocIssue283.jpg")
+    commands = ["$exiv2 $filename"]
+    stdout = [""]
+    stderr = [
+        """$exiv2_exception_message """ + filename + """:
+$kerCorruptedMetadata
+"""]
+    compare_stderr = check_no_ASAN_UBSAN_errors
+    retval = [1]
+