feat: add test for #1782

tests/bugfixes/github/test_issue_1782.py

@@ -0,0 +1,15 @@
+# -*- coding: utf-8 -*-
+
+import system_tests
+
+class test_issue_1782(metaclass=system_tests.CaseMeta):
+    url = "https://github.com/Exiv2/exiv2/issues/1782"
+
+    filename = "$data_path/issue_1782_canon_lens_sigma_30mm_f1.4_DC_DN_C.exv"
+    commands = ["$exiv2 -pa --grep LensType $filename"]
+    stderr = [""]
+    stdout = ["""Exif.CanonCs.LensType                        Short       1  Sigma 30mm f/1.4 DC DN | C
+Exif.CanonFi.RFLensType                      SShort      1  n/a
+"""
+]
+    retval = [0]