<NME> test_numerals.py
<BEF> ADDFILE
<MSG> Merge branch 'feature/lambda' into develop

<DFF> @@ -0,0 +1,35 @@
+import unittest
+
+from oslash.util.numerals import *  # noqa
+
+
+class TestNumerals(unittest.TestCase):
+    def test_iff_true(self):
+        self.assertEqual(
+            iff(true, 1, 2),
+            1
+        )
+
+    def test_iff_false(self):
+        self.assertEqual(
+            iff(false, 1, 2),
+            2
+        )
+
+    def test_printl_zero(self):
+        self.assertEqual(
+            printl(zero),
+            0
+        )
+
+    def test_printl_one(self):
+        self.assertEqual(
+            printl(one),
+            1
+        )
+
+    def test_succ_zero(self):
+        self.assertEqual(
+            printl(succ(zero)),
+            1
+        )

Merge branch 'feature/lambda' into develop