add test case

(cherry picked from commit 4329dfcc177e020eef39fdfc0909187e9470b6b9)

tests/bugfixes/github/test_pr_992.py

@@ -0,0 +1,15 @@
+# -*- coding: utf-8 -*-
+
+import system_tests
+
+class NikonSigmaLens_APO_MACRO_180_F35_EX_DG(metaclass=system_tests.CaseMeta):
+    url = "https://github.com/Exiv2/exiv2/pull/992"
+    
+    filename = "$data_path/Sigma_APO_MACRO_180_F3.5_EX_DG.exv" 
+    commands = ["$exiv2 -pa --grep lensid/i $filename"]
+    stderr = [""]
+    stdout = [""
+        """Exif.NikonLd3.LensIDNumber                   Byte        1  Sigma APO MACRO 180mm F3.5 EX DG
+"""
+]
+    retval = [0]