Corrected interpolation marker comments and added tests for plurals using floats.

4 files changed, 46 insertions, 2 deletions

diff --git a/src/zope/i18n/gettextmessagecatalog.py b/src/zope/i18n/gettextmessagecatalog.py
index ff9ef71..675c7f2 100644
--- a/src/zope/i18n/gettextmessagecatalog.py
+++ b/src/zope/i18n/gettextmessagecatalog.py
@@ -32,9 +32,9 @@ class _KeyErrorRaisingFallback(object):
 
 
 def plural_formatting(func):
-    """This decorator interpolates the `%d` possibly present in the string.
+    """This decorator interpolates the possible formatting marker.
     This interpolation marker is usally present for plurals.
-    Example: `There are %d apples`.
+    Example: `There are %d apples` or `They have %s pies.'
 
     Please note that the interpolation can be done, alternatively,
     using the mapping. This is only present as a conveniance.
diff --git a/src/zope/i18n/tests/en-default.mo b/src/zope/i18n/tests/en-default.mo
index 3e9dc9e..1ee7c89 100644
--- a/src/zope/i18n/tests/en-default.mo
+++ b/src/zope/i18n/tests/en-default.mo
diff --git a/src/zope/i18n/tests/en-default.po b/src/zope/i18n/tests/en-default.po
index fc45a11..2c75c64 100644
--- a/src/zope/i18n/tests/en-default.po
+++ b/src/zope/i18n/tests/en-default.po
@@ -18,3 +18,13 @@ msgid "There is one file."
 msgid_plural "There are %d files."
 msgstr[0] "There is one file."
 msgstr[1] "There are %d files."
+
+msgid "The item is rated 1/5 star."
+msgid_plural "The item is rated %s/5 stars."
+msgstr[0] "The item is rated 1/5 star."
+msgstr[1] "The item is rated %s/5 stars."
+
+msgid "There is %d chance."
+msgid_plural "There are %f chances."
+msgstr[0] "There is %d chance."
+msgstr[1] "There are %f chances."
diff --git a/src/zope/i18n/tests/test_plurals.py b/src/zope/i18n/tests/test_plurals.py
index 2020f85..50e192d 100644
--- a/src/zope/i18n/tests/test_plurals.py
+++ b/src/zope/i18n/tests/test_plurals.py
@@ -98,3 +98,37 @@ class TestPlurals(unittest.TestCase):
         self.assertEqual(catalog.getPluralMessage(
                          'There is one file.', 'There are %d files.', 28),
                          "Istnieją 28 plików.")
+
+    def test_floater(self):
+        """Test with the number being a float.
+        We can use %f or %s to make sure it works.
+        """
+        catalog = self._getMessageCatalog('en')
+        self.assertEqual(catalog.language, 'en')
+
+        # It's cast to integer because of the %d in the translation string.
+        self.assertEqual(catalog.getPluralMessage(
+                         'There is one file.', 'There are %d files.', 1.0),
+                         'There is one file.')
+
+        self.assertEqual(catalog.getPluralMessage(
+                         'There is one file.', 'There are %d files.', 3.5),
+                         'There are 3 files.')
+
+        # It's cast to a string because of the %s in the translation string.
+        self.assertEqual(catalog.getPluralMessage(
+            'The item is rated 1/5 star.',
+            'The item is rated %s/5 stars.', 3.5),
+                         'The item is rated 3.5/5 stars.')
+
+         # It's cast either to an int or a float because of the %s in
+         # the translation string.
+        self.assertEqual(catalog.getPluralMessage(
+            'There is %d chance.',
+            'There are %f chances.', 1.5),
+                         'There are 1.500000 chances.')
+
+        self.assertEqual(catalog.getPluralMessage(
+            'There is %d chance.',
+            'There are %f chances.', 3.5),
+                         'There are 3.500000 chances.')