[add] tests for getQualityFromUncertainty function

Testing uncertainty in classes, between classes and outside of upper/lower bound of quality classes

tests/test_get_quality_class.py

@@ -0,0 +1,50 @@
+import unittest
+from pylot.core.pick.utils import getQualityFromUncertainty as get_quality_class
+
+
+class TestQualityClassFromUncertainty(unittest.TestCase):
+    """
+    Test function that assigns a quality value [0...4] to a pick uncertainty.
+    """
+
+    def setUp(self):
+        # entries hold upper/lower bound of error classes
+        self.error_classes = [float(x) for x in range(1, 9, 2)]
+        # [1.0, 3.0, 5.0, 7.0]
+
+    def test_out_of_lower_bound(self):
+        # Error out of lower bound of classes
+        self.assertEqual(get_quality_class(0.5, self.error_classes), 0)
+
+    def test_out_of_upper_bound(self):
+        # Error out of upper bound of error classes
+        self.assertEqual(get_quality_class(14.7, self.error_classes), 4)
+
+    def test_on_lower_border(self):
+        # Error exactly on lower bound
+        self.assertEqual(get_quality_class(1., self.error_classes), 0)
+
+    def test_on_upper_border(self):
+        # Error exactly on upper bound
+        self.assertEqual(get_quality_class(7., self.error_classes), 3)
+
+    def test_on_middle_border_inclusive(self):
+        # Error exactly between two classes, since lower bound is exclusive and upper bound is inclusive it should
+        # fall into the class with better quality
+        self.assertEqual(get_quality_class(3., self.error_classes), 1)
+        self.assertNotEqual(get_quality_class(3., self.error_classes), 2)
+
+    def test_in_class0(self):
+        # Error exactly in class 1
+        self.assertEqual(get_quality_class(1.5, self.error_classes), 1)
+
+    def test_in_class2(self):
+        # Error exactly in class 2
+        self.assertEqual(get_quality_class(3.5, self.error_classes), 2)
+
+    def test_in_class3(self):
+        # Error exactly in class 3
+        self.assertEqual(get_quality_class(5.6, self.error_classes), 3)
+
+if __name__ == '__main__':
+    unittest.main()