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-rw-r--r--tests/unit/computations/test_partial_correlations.py (renamed from tests/unit/test_partial_correlations.py)66
-rw-r--r--tests/unit/test_data_helpers.py26
2 files changed, 89 insertions, 3 deletions
diff --git a/tests/unit/test_partial_correlations.py b/tests/unit/computations/test_partial_correlations.py
index 60e54c1..f7217a9 100644
--- a/tests/unit/test_partial_correlations.py
+++ b/tests/unit/computations/test_partial_correlations.py
@@ -1,11 +1,13 @@
 """Module contains tests for gn3.partial_correlations"""
 
 from unittest import TestCase
-from gn3.partial_correlations import (
+from gn3.computations.partial_correlations import (
     fix_samples,
     control_samples,
     dictify_by_samples,
-    find_identical_traits)
+    tissue_correlation,
+    find_identical_traits,
+    good_dataset_samples_indexes)
 
 sampleslist = ["B6cC3-1", "BXD1", "BXD12", "BXD16", "BXD19", "BXD2"]
 control_traits = (
@@ -209,3 +211,63 @@ class TestPartialCorrelations(TestCase):
                     control_names=contn, control_values=contv):
                 self.assertEqual(
                     find_identical_traits(primn, primv, contn, contv), expected)
+
+    def test_tissue_correlation_error(self):
+        """
+        Test that `tissue_correlation` raises specific exceptions for particular
+        error conditions.
+        """
+        for primary, target, method, error, error_msg in (
+                ((1, 2, 3), (4, 5, 6, 7), "pearson",
+                 AssertionError,
+                 (
+                     "The lengths of the `primary_trait_values` and "
+                     "`target_trait_values` must be equal")),
+                ((1, 2, 3), (4, 5, 6, 7), "spearman",
+                 AssertionError,
+                 (
+                     "The lengths of the `primary_trait_values` and "
+                     "`target_trait_values` must be equal")),
+                ((1, 2, 3, 4), (5, 6, 7), "pearson",
+                 AssertionError,
+                 (
+                     "The lengths of the `primary_trait_values` and "
+                     "`target_trait_values` must be equal")),
+                ((1, 2, 3, 4), (5, 6, 7), "spearman",
+                 AssertionError,
+                 (
+                     "The lengths of the `primary_trait_values` and "
+                     "`target_trait_values` must be equal")),
+                ((1, 2, 3), (4, 5, 6), "nonexistentmethod",
+                 AssertionError,
+                 (
+                     "Method must be one of: pearson, spearman"))):
+            with self.subTest(primary=primary, target=target, method=method):
+                with self.assertRaises(error, msg=error_msg):
+                    tissue_correlation(primary, target, method)
+
+    def test_tissue_correlation(self):
+        """
+        Test that the correct correlation values are computed for the given:
+        - primary trait
+        - target trait
+        - method
+        """
+        for primary, target, method, expected in (
+                ((12.34, 18.36, 42.51), (37.25, 46.25, 46.56), "pearson",
+                 (0.6761779253, 0.5272701134)),
+                ((1, 2, 3, 4, 5), (5, 6, 7, 8, 7), "spearman",
+                 (0.8207826817, 0.0885870053))):
+            with self.subTest(primary=primary, target=target, method=method):
+                self.assertEqual(
+                    tissue_correlation(primary, target, method), expected)
+
+    def test_good_dataset_samples_indexes(self):
+        """
+        Test that `good_dataset_samples_indexes` returns correct indices.
+        """
+        self.assertEqual(
+            good_dataset_samples_indexes(
+                ("a", "e", "i", "k"),
+                ("a", "b", "c", "d", "e", "f", "g", "h", "i", "j", "k", "l")),
+            (0, 4, 8, 10))
diff --git a/tests/unit/test_data_helpers.py b/tests/unit/test_data_helpers.py
index 1eec3cc..39aea45 100644
--- a/tests/unit/test_data_helpers.py
+++ b/tests/unit/test_data_helpers.py
@@ -4,7 +4,7 @@ Test functions in gn3.data_helpers
 
 from unittest import TestCase
 
-from gn3.data_helpers import partition_all
+from gn3.data_helpers import partition_all, parse_csv_line
 
 class TestDataHelpers(TestCase):
     """
@@ -35,3 +35,27 @@ class TestDataHelpers(TestCase):
                  ((0, 1, 2, 3, 4, 5, 6, 7, 8, 9), ))):
             with self.subTest(n=count, items=items):
                 self.assertEqual(partition_all(count, items), expected)
+
+    def test_parse_csv_line(self):
+        """
+        Test parsing a single line from a CSV file
+
+        Given:
+            - `line`: a line read from a csv file
+            - `delimiter`: the expected delimiter in the csv file
+            - `quoting`: the quoting enclosing each column in the csv file
+        When:
+            - `line` is parsed with the `parse_csv_file` with the given
+               parameters
+        Then:
+            - return a tuple of the columns in the CSV file, without the
+              delimiter and quoting
+        """
+        for line, delimiter, quoting, expected in (
+                ('"this","is","a","test"', ",", '"', ("this", "is", "a", "test")),
+                ('"this","is","a","test"', ",", None, ('"this"', '"is"', '"a"', '"test"'))):
+            with self.subTest(line=line, delimiter=delimiter, quoting=quoting):
+                self.assertEqual(
+                    parse_csv_line(
+                        line=line, delimiter=delimiter, quoting=quoting),
+                    expected)