diff --git a/num2words/base.py b/num2words/base.py
index 025e014..ccf5248 100644
--- a/num2words/base.py
+++ b/num2words/base.py
@@ -139,7 +139,7 @@ class Num2Word_Base(object):
     def to_cardinal_float(self, value):
         try:
             float(value) == value
-        except (ValueError, TypeError, AssertionError):
+        except (ValueError, TypeError, AssertionError, AttributeError):
             raise TypeError(self.errmsg_nonnum % value)
 
         pre, post = self.float2tuple(float(value))
diff --git a/num2words/lang_ES.py b/num2words/lang_ES.py
index fca9491..a8cc47d 100644
--- a/num2words/lang_ES.py
+++ b/num2words/lang_ES.py
@@ -15,7 +15,9 @@
 # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
 # MA 02110-1301 USA
 
-from __future__ import print_function, unicode_literals
+from __future__ import division, print_function, unicode_literals
+
+import math
 
 from .lang_EU import Num2Word_EU
 
@@ -120,47 +122,47 @@ class Num2Word_ES(Num2Word_EU):
 
     def to_ordinal(self, value):
         self.verify_ordinal(value)
-        try:
-            if value == 0:
-                text = ""
-            elif value <= 10:
-                text = "%s%s" % (self.ords[value], self.gender_stem)
-            elif value <= 12:
-                text = (
-                    "%s%s%s" % (self.ords[10], self.gender_stem,
-                                self.to_ordinal(value - 10))
-                        )
-            elif value <= 100:
-                dec = (value // 10) * 10
-                text = (
-                    "%s%s %s" % (self.ords[dec], self.gender_stem,
-                                 self.to_ordinal(value - dec))
-                        )
-            elif value <= 1e3:
-                cen = (value // 100) * 100
-                text = (
-                    "%s%s %s" % (self.ords[cen], self.gender_stem,
-                                 self.to_ordinal(value - cen))
-                        )
-            elif value < 1e18:
-                # dec contains the following:
-                # [ 1e3,  1e6): 1e3
-                # [ 1e6,  1e9): 1e6
-                # [ 1e9, 1e12): 1e9
-                # [1e12, 1e15): 1e12
-                # [1e15, 1e18): 1e15
-                dec = 10 ** ((((len(str(int(value))) - 1) / 3 - 1) + 1) * 3)
-                part = int(float(value / dec) * dec)
-                cardinal = (
-                    self.to_cardinal(part / dec) if part / dec != 1 else ""
+        if value == 0:
+            text = ""
+        elif value <= 10:
+            text = "%s%s" % (self.ords[value], self.gender_stem)
+        elif value <= 12:
+            text = (
+                "%s%s%s" % (self.ords[10], self.gender_stem,
+                            self.to_ordinal(value - 10))
                     )
-                text = (
-                    "%s%s%s %s" % (cardinal, self.ords[dec], self.gender_stem,
-                                   self.to_ordinal(value - part))
-                        )
-            else:
-                text = self.to_cardinal(value)
-        except KeyError:
+        elif value <= 100:
+            dec = (value // 10) * 10
+            text = (
+                "%s%s %s" % (self.ords[dec], self.gender_stem,
+                             self.to_ordinal(value - dec))
+                    )
+        elif value <= 1e3:
+            cen = (value // 100) * 100
+            text = (
+                "%s%s %s" % (self.ords[cen], self.gender_stem,
+                             self.to_ordinal(value - cen))
+                    )
+        elif value < 1e18:
+            # Round down to the nearest 1e(3n)
+            # dec contains the following:
+            # [ 1e3,  1e6): 1e3
+            # [ 1e6,  1e9): 1e6
+            # [ 1e9, 1e12): 1e9
+            # [1e12, 1e15): 1e12
+            # [1e15, 1e18): 1e15
+            dec = 1000 ** int(math.log(int(value), 1000))
+
+            # Split the parts before and after the word for 'dec'
+            # eg (12, 345) = divmod(12_345, 1_000)
+            high_part, low_part = divmod(value, dec)
+
+            cardinal = self.to_cardinal(high_part) if high_part != 1 else ""
+            text = (
+                "%s%s%s %s" % (cardinal, self.ords[dec], self.gender_stem,
+                               self.to_ordinal(low_part))
+                    )
+        else:
             text = self.to_cardinal(value)
         return text.strip()
 
diff --git a/num2words/lang_TR.py b/num2words/lang_TR.py
index 3f43fed..51f415b 100644
--- a/num2words/lang_TR.py
+++ b/num2words/lang_TR.py
@@ -24,17 +24,17 @@ class Num2Word_TR(object):
         self.precision = 2
         self.negword = u"eksi"
         self.pointword = u"virgül"
-        self.CURRENCY_UNIT = (u"lira",)
-        self.CURRENCY_SUBUNIT = (u"kuruş",)
+        self.CURRENCY_UNIT = u"lira"
+        self.CURRENCY_SUBUNIT = u"kuruş"
         self.errmsg_nonnum = u"Sadece sayılar yazıya çevrilebilir."
         self.errmsg_floatord = u"Tam sayı olmayan {} sıralamada kullanılamaz."
         self.errmsg_negord = u"Pozitif olmayan {} sıralamada kullanılamaz."
         self.errmsg_toobig = u"abs({}) sayı yazıya çevirmek için çok büyük. " \
                              u"Yazıya çevrilebilecek en büyük rakam {}."
         self.exclude_title = []
-        self.DECIMAL_SIGN = (",",)
-        self.ORDINAL_SIGN = (".",)
-        self.ZERO = (u"sıfır",)
+        self.DECIMAL_SIGN = ","
+        self.ORDINAL_SIGN = "."
+        self.ZERO = u"sıfır"
         self.CARDINAL_ONES = {
             "1": u"bir",
             "2": u"iki",
@@ -444,7 +444,7 @@ class Num2Word_TR(object):
             wrd += self.CARDINAL_ONES.get(self.integers_to_read[1][1], "")
 
         if self.integers_to_read[0] == "0":
-            wrd = self.ZERO[0] + wrd
+            wrd = self.ZERO + wrd
         else:
             wrd = self.to_cardinal(int(self.integers_to_read[0])) + wrd
         return wrd
@@ -830,9 +830,11 @@ class Num2Word_TR(object):
                 found = 1
 
     def to_currency(self, value):
+        if int(value) == 0:
+            return u"bedelsiz"
         valueparts = self.to_cardinal(value).split(self.pointword)
         if len(valueparts) == 1:
-            return valueparts[0] + self.CURRENCY_UNIT[0]
+            return valueparts[0] + self.CURRENCY_UNIT
         if len(valueparts) == 2:
-            return self.CURRENCY_UNIT[0].join(valueparts) + \
-                   self.CURRENCY_SUBUNIT[0]
+            return self.CURRENCY_UNIT.join(valueparts) + \
+                   self.CURRENCY_SUBUNIT
diff --git a/tests/test_base.py b/tests/test_base.py
index ea7701c..bd9cbd1 100644
--- a/tests/test_base.py
+++ b/tests/test_base.py
@@ -32,3 +32,29 @@ class Num2WordBaseTest(TestCase):
     def test_to_currency_not_implemented(self):
         with self.assertRaises(NotImplementedError):
             self.base.to_currency(Decimal('1.00'), currency='EUR')
+
+    def test_error_to_cardinal_float(self):
+        from num2words.base import Num2Word_Base
+        with self.assertRaises(TypeError):
+            Num2Word_Base.to_cardinal_float(9)
+        with self.assertRaises(TypeError):
+            Num2Word_Base.to_cardinal_float("a")
+
+    def test_error_merge(self):
+        from num2words.base import Num2Word_Base
+        self.base = Num2Word_Base()
+        with self.assertRaises(NotImplementedError):
+            self.base.merge(2, 3)
+
+    def test_is_title(self):
+        from num2words.base import Num2Word_Base
+        self.base = Num2Word_Base()
+        self.assertEqual(
+            self.base.title("one"),
+            "one"
+            )
+        self.base.is_title = True
+        self.assertEqual(
+            self.base.title("one"),
+            "One"
+            )
diff --git a/tests/test_dk.py b/tests/test_dk.py
new file mode 100644
index 0000000..889e9d8
--- /dev/null
+++ b/tests/test_dk.py
@@ -0,0 +1,37 @@
+# coding: utf-8
+# Copyright (c) 2003, Taro Ogawa.  All Rights Reserved.
+# Copyright (c) 2013, Savoir-faire Linux inc.  All Rights Reserved.
+
+# This library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Lesser General Public
+# License as published by the Free Software Foundation; either
+# version 2.1 of the License, or (at your option) any later version.
+# This library is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+# Lesser General Public License for more details.
+# You should have received a copy of the GNU Lesser General Public
+# License along with this library; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
+# MA 02110-1301 USA
+
+from __future__ import unicode_literals
+
+from unittest import TestCase
+
+from num2words import num2words
+
+
+class Num2WordsDKTest(TestCase):
+    def test_ordinal(self):
+        self.assertEqual(num2words(1, to="ordinal", lang="dk"), "første")
+        self.assertEqual(num2words(5, to="ordinal", lang="dk"), "femte")
+
+    def test_cardinal(self):
+        self.assertEqual(num2words(0, to="cardinal", lang="dk"), "nul")
+        self.assertEqual(num2words(1, to="cardinal", lang="dk"), "et")
+        self.assertEqual(num2words(2, to="cardinal", lang="dk"), "to")
+        self.assertEqual(num2words(5, to="cardinal", lang="dk"), "fem")
+        self.assertEqual(num2words(8, to="cardinal", lang="dk"), "otte")
+        self.assertEqual(num2words(18, to="cardinal", lang="dk"), "atten")
+        self.assertEqual(num2words(45, to="cardinal", lang="dk"), "femogfyrre")
diff --git a/tests/test_en.py b/tests/test_en.py
index 1508087..6234ac9 100644
--- a/tests/test_en.py
+++ b/tests/test_en.py
@@ -26,10 +26,18 @@ class Num2WordsENTest(TestCase):
         self.assertEqual(num2words(199), "one hundred and ninety-nine")
 
     def test_ordinal(self):
+        self.assertEqual(
+            num2words(0, lang='en', to='ordinal'),
+            'zeroth'
+        )
         self.assertEqual(
             num2words(1, lang='en', to='ordinal'),
             'first'
         )
+        self.assertEqual(
+            num2words(13, lang='en', to='ordinal'),
+            'thirteenth'
+        )
         self.assertEqual(
             num2words(22, lang='en', to='ordinal'),
             'twenty-second'
diff --git a/tests/test_es.py b/tests/test_es.py
index a49cfbf..d306981 100644
--- a/tests/test_es.py
+++ b/tests/test_es.py
@@ -95,6 +95,7 @@ TEST_CASES_ORDINAL = (
     (28, 'vigésimo octavo'),
     (100, 'centésimo'),
     (1000, 'milésimo'),
+    (12345, 'docemilésimo tricentésimo quadragésimo quinto'),
     (1000000, 'millonésimo'),
     (1000000000000000, 'cuadrillonésimo'),
     (1000000000000000000, 'un trillón')  # over 1e18 is not supported
diff --git a/tests/test_tr.py b/tests/test_tr.py
index 6622ddc..a6fc968 100644
--- a/tests/test_tr.py
+++ b/tests/test_tr.py
@@ -24,171 +24,168 @@ from num2words import num2words
 class Num2WordsTRTest(TestCase):
     def test_tr(self):
         # ref https://github.com/savoirfairelinux/num2words/issues/8
+        testlang = "tr"
+        testcases = [
+            {"test": 0, "to": "currency", "expected": u"bedelsiz"},
+            {"test": 1.1, "to": "currency", "expected": u"birliraonkuruş"},
+            {"test": 2000, "to": "currency", "expected": u"ikibinlira"},
+            {"test": 110000, "to": "currency", "expected": u"yüzonbinlira"},
+            {"test": 1002000, "to": "currency",
+             "expected": u"birmilyonikibinlira"},
+            {"test": 1002001, "to": "currency",
+             "expected": u"birmilyonikibinbirlira"},
+            {"test": 1100000, "to": "currency",
+             "expected": u"birmilyonyüzbinlira"},
+            {"test": 1, "to": "ordinal", "expected": u"birinci"},
+            {"test": 2, "to": "ordinal", "expected": u"ikinci"},
+            {"test": 9, "to": "ordinal", "expected": u"dokuzuncu"},
+            {"test": 10, "to": "ordinal", "expected": u"onuncu"},
+            {"test": 11, "to": "ordinal", "expected": u"onbirinci"},
+            {"test": 44, "to": "ordinal", "expected": u"kırkdördüncü"},
+            {"test": 100, "to": "ordinal", "expected": u"yüzüncü"},
+            {"test": 101, "to": "ordinal", "expected": u"yüzbirinci"},
+            {"test": 103, "to": "ordinal", "expected": u"yüzüçüncü"},
+            {"test": 110, "to": "ordinal", "expected": u"yüzonuncu"},
+            {"test": 111, "to": "ordinal", "expected": u"yüzonbirinci"},
+            {"test": 1000, "to": "ordinal", "expected": u"bininci"},
+            {"test": 1001, "to": "ordinal", "expected": u"binbirinci"},
+            {"test": 1010, "to": "ordinal", "expected": u"binonuncu"},
+            {"test": 1011, "to": "ordinal", "expected": u"binonbirinci"},
+            {"test": 1100, "to": "ordinal", "expected": u"binyüzüncü"},
+            {"test": 1110, "to": "ordinal", "expected": u"binyüzonuncu"},
+            {"test": 2341, "to": "ordinal",
+             "expected": u"ikibinüçyüzkırkbirinci"},
+            {"test": 10000, "to": "ordinal", "expected": u"onbininci"},
+            {"test": 10010, "to": "ordinal", "expected": u"onbinonuncu"},
+            {"test": 10100, "to": "ordinal", "expected": u"onbinyüzüncü"},
+            {"test": 10110, "to": "ordinal", "expected": u"onbinyüzonuncu"},
+            {"test": 11000, "to": "ordinal", "expected": u"onbirbininci"},
+            {"test": 35000, "to": "ordinal", "expected": u"otuzbeşbininci"},
+            {"test": 116331, "to": "ordinal",
+             "expected": u"yüzonaltıbinüçyüzotuzbirinci"},
+            {"test": 116330, "to": "ordinal",
+             "expected": u"yüzonaltıbinüçyüzotuzuncu"},
+            {"test": 100000, "to": "ordinal", "expected": u"yüzbininci"},
+            {"test": 501000, "to": "ordinal",
+             "expected": u"beşyüzbirbininci"},
+            {"test": 1000111, "to": "ordinal",
+             "expected": u"birmilyonyüzonbirinci"},
+            {"test": 111000111, "to": "ordinal",
+             "expected": u"yüzonbirmilyonyüzonbirinci"},
+            {"test": 111001111, "to": "ordinal",
+             "expected": u"yüzonbirmilyonbinyüzonbirinci"},
+            {"test": 111111111, "to": "ordinal",
+             "expected": u"yüzonbirmilyonyüzonbirbinyüzonbirinci"},
+            {"test": 100001000, "to": "ordinal",
+             "expected": u"yüzmilyonbininci"},
+            {"test": 100001001, "to": "ordinal",
+             "expected": u"yüzmilyonbinbirinci"},
+            {"test": 100010000, "to": "ordinal",
+             "expected": u"yüzmilyononbininci"},
+            {"test": 100010001, "to": "ordinal",
+             "expected": u"yüzmilyononbinbirinci"},
+            {"test": 100011000, "to": "ordinal",
+             "expected": u"yüzmilyononbirbininci"},
+            {"test": 100011001, "to": "ordinal",
+             "expected": u"yüzmilyononbirbinbirinci"},
+            {"test": 101011001, "to": "ordinal",
+             "expected": u"yüzbirmilyononbirbinbirinci"},
+            {"test": 101011010, "to": "ordinal",
+             "expected": u"yüzbirmilyononbirbinonuncu"},
+            {"test": 1101011010, "to": "ordinal",
+             "expected": u"birmilyaryüzbirmilyononbirbinonuncu"},
+            {"test": 101101011010, "to": "ordinal",
+             "expected": u"yüzbirmilyaryüzbirmilyononbirbinonuncu"},
+            {"test": 1000000000001, "to": "ordinal",
+             "expected": u"birtrilyonbirinci"},
+            {"test": 1.2, "to": "ordinal", "expected": u""},
+            {"test": 1.3, "to": "ordinal", "expected": u""},
+            {"test": 3000, "to": "ordinal", "expected": u"üçbininci"},
+            {"test": 120000, "to": "ordinal", "expected": u"yüzyirmibininci"},
+            {"test": 1002002, "to": "ordinal",
+             "expected": u"birmilyonikibinikinci"},
+            {"test": 1003000, "to": "ordinal",
+             "expected": u"birmilyonüçbininci"},
+            {"test": 1200000, "to": "ordinal",
+             "expected": u"birmilyonikiyüzbininci"},
+            {"test": 1, "to": "cardinal", "expected": u"bir"},
+            {"test": 2, "to": "cardinal", "expected": u"iki"},
+            {"test": 9, "to": "cardinal", "expected": u"dokuz"},
+            {"test": 10, "to": "cardinal", "expected": u"on"},
+            {"test": 11, "to": "cardinal", "expected": u"onbir"},
+            {"test": 44, "to": "cardinal", "expected": u"kırkdört"},
+            {"test": 100, "to": "cardinal", "expected": u"yüz"},
+            {"test": 101, "to": "cardinal", "expected": u"yüzbir"},
+            {"test": 103, "to": "cardinal", "expected": u"yüzüç"},
+            {"test": 110, "to": "cardinal", "expected": u"yüzon"},
+            {"test": 111, "to": "cardinal", "expected": u"yüzonbir"},
+            {"test": 1000, "to": "cardinal", "expected": u"bin"},
+            {"test": 1001, "to": "cardinal", "expected": u"binbir"},
+            {"test": 1010, "to": "cardinal", "expected": u"binon"},
+            {"test": 1011, "to": "cardinal", "expected": u"binonbir"},
+            {"test": 1100, "to": "cardinal", "expected": u"binyüz"},
+            {"test": 1110, "to": "cardinal", "expected": u"binyüzon"},
+            {"test": 2341, "to": "cardinal",
+             "expected": u"ikibinüçyüzkırkbir"},
+            {"test": 10000, "to": "cardinal", "expected": u"onbin"},
+            {"test": 10010, "to": "cardinal", "expected": u"onbinon"},
+            {"test": 10100, "to": "cardinal", "expected": u"onbinyüz"},
+            {"test": 10110, "to": "cardinal", "expected": u"onbinyüzon"},
+            {"test": 11000, "to": "cardinal", "expected": u"onbirbin"},
+            {"test": 35000, "to": "cardinal", "expected": u"otuzbeşbin"},
+            {"test": 116331, "to": "cardinal",
+             "expected": u"yüzonaltıbinüçyüzotuzbir"},
+            {"test": 116330, "to": "cardinal",
+             "expected": u"yüzonaltıbinüçyüzotuz"},
+            {"test": 500000, "to": "cardinal", "expected": u"beşyüzbin"},
+            {"test": 501000, "to": "cardinal", "expected": u"beşyüzbirbin"},
+            {"test": 1000111, "to": "cardinal",
+             "expected": u"birmilyonyüzonbir"},
+            {"test": 111000111, "to": "cardinal",
+             "expected": u"yüzonbirmilyonyüzonbir"},
+            {"test": 111001111, "to": "cardinal",
+             "expected": u"yüzonbirmilyonbinyüzonbir"},
+            {"test": 111111111, "to": "cardinal",
+             "expected": u"yüzonbirmilyonyüzonbirbinyüzonbir"},
+            {"test": 100001000, "to": "cardinal",
+             "expected": u"yüzmilyonbin"},
+            {"test": 100001001, "to": "cardinal",
+             "expected": u"yüzmilyonbinbir"},
+            {"test": 100010000, "to": "cardinal",
+             "expected": u"yüzmilyononbin"},
+            {"test": 100010001, "to": "cardinal",
+             "expected": u"yüzmilyononbinbir"},
+            {"test": 100011000, "to": "cardinal",
+             "expected": u"yüzmilyononbirbin"},
+            {"test": 100011001, "to": "cardinal",
+             "expected": u"yüzmilyononbirbinbir"},
+            {"test": 101011001, "to": "cardinal",
+             "expected": u"yüzbirmilyononbirbinbir"},
+            {"test": 101011010, "to": "cardinal",
+             "expected": u"yüzbirmilyononbirbinon"},
+            {"test": 1101011010, "to": "cardinal",
+             "expected": u"birmilyaryüzbirmilyononbirbinon"},
+            {"test": 101101011010, "to": "cardinal",
+             "expected": u"yüzbirmilyaryüzbirmilyononbirbinon"},
+            {"test": 1000000000001, "to": "cardinal",
+             "expected": u"birtrilyonbir"},
+            {"test": 0.01, "to": "cardinal", "expected": u"sıfırvirgülbir"},
+            {"test": 0.21, "to": "cardinal",
+             "expected": u"sıfırvirgülyirmibir"},
+            {"test": 0.1, "to": "cardinal", "expected": u"sıfırvirgülon"},
+            {"test": 1.01, "to": "cardinal", "expected": u"birvirgülbir"},
+            {"test": 1.1, "to": "cardinal", "expected": u"birvirgülon"},
+            {"test": 1.21, "to": "cardinal",
+             "expected": u"birvirgülyirmibir"},
+            {"test": 101101011010.02, "to": "cardinal",
+             "expected": u"yüzbirmilyaryüzbirmilyononbirbinonvirgüliki"},
+            {"test": 101101011010.2, "to": "cardinal",
+             "expected": u"yüzbirmilyaryüzbirmilyononbirbinonvirgülyirmi"}
+        ]
 
-        self.assertEqual(num2words(1, True, "tr"), u"birinci")
-        self.assertEqual(num2words(2, True, "tr"), u"ikinci")
-        self.assertEqual(num2words(9, True, "tr"), u"dokuzuncu")
-        self.assertEqual(num2words(10, True, "tr"), u"onuncu")
-        self.assertEqual(num2words(11, True, "tr"), u"onbirinci")
-        self.assertEqual(num2words(44, True, "tr"), u"kırkdördüncü")
-        self.assertEqual(num2words(100, True, "tr"), u"yüzüncü")
-        self.assertEqual(num2words(101, True, "tr"), u"yüzbirinci")
-        self.assertEqual(num2words(103, True, "tr"), u"yüzüçüncü")
-        self.assertEqual(num2words(110, True, "tr"), u"yüzonuncu")
-        self.assertEqual(num2words(111, True, "tr"), u"yüzonbirinci")
-        self.assertEqual(num2words(1000, True, "tr"), u"bininci")
-        self.assertEqual(num2words(1001, True, "tr"), u"binbirinci")
-        self.assertEqual(num2words(1010, True, "tr"), u"binonuncu")
-        self.assertEqual(num2words(1011, True, "tr"), u"binonbirinci")
-        self.assertEqual(num2words(1100, True, "tr"), u"binyüzüncü")
-        self.assertEqual(num2words(1110, True, "tr"), u"binyüzonuncu")
-        self.assertEqual(
-            num2words(2341, True, "tr"), u"ikibinüçyüzkırkbirinci"
-        )
-        self.assertEqual(num2words(10000, True, "tr"), u"onbininci")
-        self.assertEqual(num2words(10010, True, "tr"), u"onbinonuncu")
-        self.assertEqual(num2words(10100, True, "tr"), u"onbinyüzüncü")
-        self.assertEqual(num2words(10110, True, "tr"), u"onbinyüzonuncu")
-        self.assertEqual(num2words(11000, True, "tr"), u"onbirbininci")
-        self.assertEqual(num2words(35000, True, "tr"), u"otuzbeşbininci")
-        self.assertEqual(
-            num2words(116331, True, "tr"), u"yüzonaltıbinüçyüzotuzbirinci"
-        )
-        self.assertEqual(
-            num2words(116330, True, "tr"), u"yüzonaltıbinüçyüzotuzuncu"
-        )
-        self.assertEqual(num2words(100000, True, "tr"), u"yüzbininci")
-        self.assertEqual(num2words(501000, True, "tr"), u"beşyüzbirbininci")
-        self.assertEqual(
-            num2words(1000111, True, "tr"), u"birmilyonyüzonbirinci"
-        )
-        self.assertEqual(
-            num2words(111000111, True, "tr"), u"yüzonbirmilyonyüzonbirinci"
-        )
-        self.assertEqual(
-            num2words(111001111, True, "tr"), u"yüzonbirmilyonbinyüzonbirinci"
-        )
-        self.assertEqual(
-            num2words(111111111, True, "tr"),
-            u"yüzonbirmilyonyüzonbirbinyüzonbirinci"
-        )
-        self.assertEqual(num2words(100001000, True, "tr"), u"yüzmilyonbininci")
-        self.assertEqual(
-            num2words(100001001, True, "tr"), u"yüzmilyonbinbirinci"
-        )
-        self.assertEqual(
-            num2words(100010000, True, "tr"), u"yüzmilyononbininci"
-        )
-        self.assertEqual(
-            num2words(100010001, True, "tr"), u"yüzmilyononbinbirinci"
-        )
-        self.assertEqual(
-            num2words(100011000, True, "tr"), u"yüzmilyononbirbininci"
-        )
-        self.assertEqual(
-            num2words(100011001, True, "tr"), u"yüzmilyononbirbinbirinci"
-        )
-        self.assertEqual(
-            num2words(101011001, True, "tr"), u"yüzbirmilyononbirbinbirinci"
-        )
-        self.assertEqual(
-            num2words(101011010, True, "tr"), u"yüzbirmilyononbirbinonuncu"
-        )
-        self.assertEqual(
-            num2words(1101011010, True, "tr"),
-            u"birmilyaryüzbirmilyononbirbinonuncu"
-        )
-        self.assertEqual(
-            num2words(101101011010, True, "tr"),
-            u"yüzbirmilyaryüzbirmilyononbirbinonuncu"
-        )
-        self.assertEqual(
-            num2words(1000000000001, True, "tr"), u"birtrilyonbirinci"
-        )
-
-        self.assertEqual(num2words(1, False, "tr"), u"bir")
-        self.assertEqual(num2words(2, False, "tr"), u"iki")
-        self.assertEqual(num2words(9, False, "tr"), u"dokuz")
-        self.assertEqual(num2words(10, False, "tr"), u"on")
-        self.assertEqual(num2words(11, False, "tr"), u"onbir")
-        self.assertEqual(num2words(44, False, "tr"), u"kırkdört")
-        self.assertEqual(num2words(100, False, "tr"), u"yüz")
-        self.assertEqual(num2words(101, False, "tr"), u"yüzbir")
-        self.assertEqual(num2words(103, False, "tr"), u"yüzüç")
-        self.assertEqual(num2words(110, False, "tr"), u"yüzon")
-        self.assertEqual(num2words(111, False, "tr"), u"yüzonbir")
-        self.assertEqual(num2words(1000, False, "tr"), u"bin")
-        self.assertEqual(num2words(1001, False, "tr"), u"binbir")
-        self.assertEqual(num2words(1010, False, "tr"), u"binon")
-        self.assertEqual(num2words(1011, False, "tr"), u"binonbir")
-        self.assertEqual(num2words(1100, False, "tr"), u"binyüz")
-        self.assertEqual(num2words(1110, False, "tr"), u"binyüzon")
-        self.assertEqual(num2words(2341, False, "tr"), u"ikibinüçyüzkırkbir")
-        self.assertEqual(num2words(10000, False, "tr"), u"onbin")
-        self.assertEqual(num2words(10010, False, "tr"), u"onbinon")
-        self.assertEqual(num2words(10100, False, "tr"), u"onbinyüz")
-        self.assertEqual(num2words(10110, False, "tr"), u"onbinyüzon")
-        self.assertEqual(num2words(11000, False, "tr"), u"onbirbin")
-        self.assertEqual(num2words(35000, False, "tr"), u"otuzbeşbin")
-        self.assertEqual(
-            num2words(116331, False, "tr"), u"yüzonaltıbinüçyüzotuzbir"
-        )
-        self.assertEqual(
-            num2words(116330, False, "tr"), u"yüzonaltıbinüçyüzotuz"
-        )
-        self.assertEqual(num2words(500000, False, "tr"), u"beşyüzbin")
-        self.assertEqual(num2words(501000, False, "tr"), u"beşyüzbirbin")
-        self.assertEqual(num2words(1000111, False, "tr"), u"birmilyonyüzonbir")
-        self.assertEqual(
-            num2words(111000111, False, "tr"), u"yüzonbirmilyonyüzonbir"
-        )
-        self.assertEqual(
-            num2words(111001111, False, "tr"), u"yüzonbirmilyonbinyüzonbir"
-        )
-        self.assertEqual(
-            num2words(111111111, False, "tr"),
-            u"yüzonbirmilyonyüzonbirbinyüzonbir"
-        )
-        self.assertEqual(num2words(100001000, False, "tr"), u"yüzmilyonbin")
-        self.assertEqual(num2words(100001001, False, "tr"), u"yüzmilyonbinbir")
-        self.assertEqual(num2words(100010000, False, "tr"), u"yüzmilyononbin")
-        self.assertEqual(
-            num2words(100010001, False, "tr"), u"yüzmilyononbinbir"
-        )
-        self.assertEqual(
-            num2words(100011000, False, "tr"), u"yüzmilyononbirbin"
-        )
-        self.assertEqual(
-            num2words(100011001, False, "tr"), u"yüzmilyononbirbinbir"
-        )
-        self.assertEqual(
-            num2words(101011001, False, "tr"), u"yüzbirmilyononbirbinbir"
-        )
-        self.assertEqual(
-            num2words(101011010, False, "tr"), u"yüzbirmilyononbirbinon"
-        )
-        self.assertEqual(
-            num2words(1101011010, False, "tr"),
-            u"birmilyaryüzbirmilyononbirbinon"
-        )
-        self.assertEqual(
-            num2words(101101011010, False, "tr"),
-            u"yüzbirmilyaryüzbirmilyononbirbinon"
-        )
-        self.assertEqual(
-            num2words(1000000000001, False, "tr"), u"birtrilyonbir"
-        )
-        self.assertEqual(num2words(0.01, False, "tr"), u"sıfırvirgülbir")
-        self.assertEqual(num2words(0.1, False, "tr"), u"sıfırvirgülon")
-        self.assertEqual(num2words(0.21, False, "tr"), u"sıfırvirgülyirmibir")
-        self.assertEqual(num2words(1.01, False, "tr"), u"birvirgülbir")
-        self.assertEqual(num2words(1.1, False, "tr"), u"birvirgülon")
-        self.assertEqual(num2words(1.21, False, "tr"), u"birvirgülyirmibir")
-        self.assertEqual(
-            num2words(101101011010.02, False, "tr"),
-            u"yüzbirmilyaryüzbirmilyononbirbinonvirgüliki"
-        )
-        self.assertEqual(
-            num2words(101101011010.2, False, "tr"),
-            u"yüzbirmilyaryüzbirmilyononbirbinonvirgülyirmi"
-        )
+        for casedata in testcases:
+            self.assertEqual(
+                num2words(casedata["test"],
+                          lang=testlang,
+                          to=casedata["to"]),
+                casedata["expected"])