_convert_scalar() should throw an error if passed a tuple or list

A parameter needs to have multivalue set in order to work on lists/tuples
and even then _convert_scalar() will be sent one value at a time.

2 files changed, 19 insertions, 1 deletions

diff --git a/ipalib/parameters.py b/ipalib/parameters.py
index 0630915cb..227757d63 100644
--- a/ipalib/parameters.py
+++ b/ipalib/parameters.py
@@ -227,6 +227,9 @@ class Param(ReadOnly):
     # Subclasses should override this with something more specific:
     type_error = _('incorrect type')
 
+    # _convert_scalar operates only on scalar values
+    scalar_error = _('Only one value is allowed')
+
     kwargs = (
         ('cli_name', str, None),
         ('cli_short_name', str, None),
@@ -810,6 +813,9 @@ class Bool(Param):
             return True
         if value in self.falsehoods:
             return False
+        if type(value) in (tuple, list):
+            raise ConversionError(name=self.name, index=index,
+            error=ugettext(self.scalar_error))
         raise ConversionError(name=self.name, index=index,
             error=ugettext(self.type_error),
         )
@@ -873,6 +879,9 @@ class Number(Param):
                 return self.type(value)
             except ValueError:
                 pass
+        if type(value) in (tuple, list):
+            raise ConversionError(name=self.name, index=index,
+            error=ugettext(self.scalar_error))
         raise ConversionError(name=self.name, index=index,
             error=ugettext(self.type_error),
         )
@@ -1106,6 +1115,9 @@ class Str(Data):
             return value
         if type(value) in (int, float):
             return self.type(value)
+        if type(value) in (tuple, list):
+            raise ConversionError(name=self.name, index=index,
+            error=ugettext(self.scalar_error))
         raise ConversionError(name=self.name, index=index,
             error=ugettext(self.type_error),
         )
diff --git a/tests/test_ipalib/test_parameters.py b/tests/test_ipalib/test_parameters.py
index 44286ac07..f6bc66f4e 100644
--- a/tests/test_ipalib/test_parameters.py
+++ b/tests/test_ipalib/test_parameters.py
@@ -923,7 +923,7 @@ class test_Str(ClassChecker):
         mthd = o._convert_scalar
         for value in (u'Hello', 42, 1.2, unicode_str):
             assert mthd(value) == unicode(value)
-        bad = [True, 'Hello', (u'Hello',), [42.3], dict(one=1), utf8_bytes]
+        bad = [True, 'Hello', dict(one=1), utf8_bytes]
         for value in bad:
             e = raises(errors.ConversionError, mthd, value)
             assert e.name == 'my_str'
@@ -933,6 +933,12 @@ class test_Str(ClassChecker):
             assert e.name == 'my_str'
             assert e.index == 18
             assert_equal(e.error, u'must be Unicode text')
+        bad = [(u'Hello',), [42.3]]
+        for value in bad:
+            e = raises(errors.ConversionError, mthd, value)
+            assert e.name == 'my_str'
+            assert e.index is None
+            assert_equal(e.error, u'Only one value is allowed')
         assert o.convert(None) is None
 
     def test_rule_minlength(self):