hopefully fix python 2 and 3 compatability

tests/test_fields.py

@@ -0,0 +1,72 @@
+import unittest
+import decimal
+from pyaccuwage.fields import TextField
+from pyaccuwage.fields import IntegerField
+from pyaccuwage.fields import StateField
+from pyaccuwage.fields import BlankField
+from pyaccuwage.fields import ZeroField
+from pyaccuwage.fields import MoneyField
+from pyaccuwage.fields import ValidationError
+from pyaccuwage.model import Model
+
+
+class TestTextField(unittest.TestCase):
+
+    def testStringShortOptional(self):
+        field = TextField(max_length=6, required=False)
+        field.validate()  # optional
+        field.value = 'Hello'
+        field.validate()
+        self.assertEqual(field.get_data(), b'HELLO ')
+
+    def testStringShortRequired(self):
+        field = TextField(max_length=6, required=True)
+        with self.assertRaises(ValidationError):
+            field.validate()
+        field.value = 'Hello'
+        field.validate()
+        self.assertEqual(field.get_data(), b'HELLO ')
+
+    def testStringLongOptional(self):
+        field = TextField(max_length=6, required=False)
+        field.value = 'Hello, World!'  # too long
+        self.assertEqual(len(field.get_data()), field.max_length)
+
+
+class TestModelOutput(unittest.TestCase):
+    class TestModel(Model):
+        record_length = 128
+        record_identifier = 'TEST'  # 4 bytes
+        field1 = TextField(max_length=16)
+        field2 = IntegerField(max_length=16)
+        blank1 = BlankField(max_length=16)
+        zero1 = ZeroField(max_length=16)
+        money = MoneyField(max_length=32)
+        state_txt = StateField()
+        state_num = StateField(use_numeric=True)
+        blank2 = BlankField(max_length=24)
+
+    def setUp(self):
+        self.model = TestModelOutput.TestModel()
+
+    def testModelOutput(self):
+        model = self.model
+        model.field1.value = 'Hello, sir!'
+        model.field2.value = 12345
+        model.money.value = decimal.Decimal('1234.56')
+        model.state_txt.value = 'IA'
+        model.state_num.value = 'IA'
+
+        expected = b''.join([
+            b'TEST',
+            b'HELLO, SIR!'.ljust(16),
+            b'12345'.zfill(16),
+            b' ' * 16,
+            b'0' * 16,
+            b'123456'.zfill(32),
+            b'IA',
+            b'19',
+            b' ' * 24,
+            ])
+
+        self.assertEqual(model.output(), expected)