Fix a bug w the formatting of the foundations.

With the input to freecell solver. Reported by Don - thanks! The format
was wrong.

pysollib/hint.py

@@ -755,7 +755,7 @@ class Base_Solver_Hint:
 
     def card2str2(self, card):
         # foundations
-        return self._card2str_format('%(S)-s%(R)s', card)
+        return self._card2str_format('%(S)s-%(R)s', card)
 
 # hard solvable: Freecell #47038300998351211829 (65539 iters)
 

tests/unit/hint.py

@@ -0,0 +1,26 @@
+#!/usr/bin/env python3
+# Written by Shlomi Fish, under the MIT Expat License.
+
+# imports
+import sys
+from TAP.Simple import diag, plan, ok
+
+from pysollib.acard import AbstractCard
+from pysollib.hint import Base_Solver_Hint
+
+
+def shlomif_main(args):
+
+    plan(1)
+
+    card = AbstractCard(1001, 0, 3, 7, 3001)
+    h = Base_Solver_Hint(None, None, base_rank=0)
+
+    got = h.card2str2(card)
+    # TEST
+    if not ok(got == 'D-8', 'card2str2 works'):
+        diag('got == ' + got)
+
+
+if __name__ == "__main__":
+    sys.exit(shlomif_main(sys.argv))