Implement BooleanField; close #6

Author: alexei

adapters/fields.py

@@ -7,11 +7,14 @@
 from .base import BaseField
 
 
-__all__ = ['Field', 'CharField', 'DecimalField', 'FloatField', 'IntField']
+__all__ = [
+    'BooleanField', 'CharField', 'DecimalField', 'Field', 'FloatField',
+    'IntField']
 
 
-class Field(BaseField):
-    pass
+class BooleanField(BaseField):
+    def adapt(self, data):
+        return bool(data)
 
 
 class CharField(BaseField):
@@ -24,6 +27,10 @@ def adapt(self, data):
         return Decimal(data)
 
 
+class Field(BaseField):
+    pass
+
+
 class FloatField(BaseField):
     def adapt(self, data):
         return float(data)

tests/test_fields.py

@@ -43,3 +43,18 @@ def test_decimal_field_from_string(self):
         actual = adapters.DecimalField().adapt('0.7350977618')
         expected = Decimal(0.7350977618)
         self.assertAlmostEqual(actual, expected)
+
+    def test_boolean_field(self):
+        actual = adapters.BooleanField().adapt(True)
+        self.assertTrue(actual)
+
+    def test_boolean_field_from_string(self):
+        actual = adapters.BooleanField().adapt('Lorem ipsum')
+        self.assertTrue(actual)
+
+        actual = adapters.BooleanField().adapt('')
+        self.assertFalse(actual)
+
+    def test_boolean_field_from_null(self):
+        actual = adapters.BooleanField().adapt(None)
+        self.assertFalse(actual)