1 files changed, 32 insertions, 0 deletions
diff --git a/wqflask/tests/utility/test_corr_result_helpers.py b/wqflask/tests/utility/test_corr_result_helpers.py
new file mode 100644
index 00000000..e196fbdf
--- /dev/null
+++ b/wqflask/tests/utility/test_corr_result_helpers.py
@@ -0,0 +1,32 @@
+""" Test correlation helper methods """
+
+import unittest
+from utility.corr_result_helpers import normalize_values, common_keys, normalize_values_with_samples
+
+
+class TestCorrelationHelpers(unittest.TestCase):
+    """Test methods for normalising lists"""
+
+    def test_normalize_values(self):
+        """Test that a list is normalised correctly"""
+        self.assertEqual(
+            normalize_values([2.3, None, None, 3.2, 4.1, 5], [
+                             3.4, 7.2, 1.3, None, 6.2, 4.1]),
+            ([2.3, 4.1, 5], [3.4, 6.2, 4.1], 3)
+        )
+
+    def test_common_keys(self):
+        """Test that common keys are returned as a list"""
+        a = dict(BXD1=9.113, BXD2=9.825, BXD14=8.985, BXD15=9.300)
+        b = dict(BXD1=9.723, BXD3=9.825, BXD14=9.124, BXD16=9.300)
+        self.assertEqual(sorted(common_keys(a, b)), ['BXD1', 'BXD14'])
+
+    def test_normalize_values_with_samples(self):
+        """Test that a sample(dict) is normalised correctly"""
+        self.assertEqual(
+            normalize_values_with_samples(
+                dict(BXD1=9.113, BXD2=9.825, BXD14=8.985,
+                     BXD15=9.300, BXD20=9.300),
+                dict(BXD1=9.723, BXD3=9.825, BXD14=9.124, BXD16=9.300)),
+            (({'BXD1': 9.113, 'BXD14': 8.985}, {'BXD1': 9.723, 'BXD14': 9.124}, 2))
+        )