Rework test matrix and structure

tests/test_forms.py

@@ -0,0 +1,27 @@
+from django.test import SimpleTestCase
+from django.core.exceptions import ValidationError
+
+from jsignature.widgets import JSignatureWidget
+from jsignature.forms import JSignatureField
+
+
+class JSignatureFormFieldTest(SimpleTestCase):
+
+    def test_widget(self):
+        f = JSignatureField()
+        self.assertIsInstance(f.widget, JSignatureWidget)
+
+    def test_to_python_empty_values(self):
+        f = JSignatureField()
+        for val in ['', [], '[]']:
+            self.assertIsNone(f.to_python(val))
+
+    def test_to_python_correct_values(self):
+        f = JSignatureField()
+        val = '[{"x":[1,2], "y":[3,4]}]'
+        self.assertEquals([{'x': [1, 2], 'y': [3, 4]}], f.to_python(val))
+
+    def test_to_python_incorrect_values(self):
+        f = JSignatureField()
+        val = 'foo'
+        self.assertRaises(ValidationError, f.to_python, val)