1 files changed, 162 insertions, 0 deletions
diff --git a/test/units/plugins/filter/test_mathstuff.py b/test/units/plugins/filter/test_mathstuff.py
new file mode 100644
index 0000000..f793871
--- /dev/null
+++ b/test/units/plugins/filter/test_mathstuff.py
@@ -0,0 +1,162 @@
+# Copyright: (c) 2017, Ansible Project
+# GNU General Public License v3.0+ (see COPYING or https://www.gnu.org/licenses/gpl-3.0.txt)
+
+# Make coding more python3-ish
+from __future__ import (absolute_import, division, print_function)
+__metaclass__ = type
+import pytest
+
+from jinja2 import Environment
+
+import ansible.plugins.filter.mathstuff as ms
+from ansible.errors import AnsibleFilterError, AnsibleFilterTypeError
+
+
+UNIQUE_DATA = (([1, 3, 4, 2], [1, 3, 4, 2]),
+               ([1, 3, 2, 4, 2, 3], [1, 3, 2, 4]),
+               (['a', 'b', 'c', 'd'], ['a', 'b', 'c', 'd']),
+               (['a', 'a', 'd', 'b', 'a', 'd', 'c', 'b'], ['a', 'd', 'b', 'c']),
+               )
+
+TWO_SETS_DATA = (([1, 2], [3, 4], ([], sorted([1, 2]), sorted([1, 2, 3, 4]), sorted([1, 2, 3, 4]))),
+                 ([1, 2, 3], [5, 3, 4], ([3], sorted([1, 2]), sorted([1, 2, 5, 4]), sorted([1, 2, 3, 4, 5]))),
+                 (['a', 'b', 'c'], ['d', 'c', 'e'], (['c'], sorted(['a', 'b']), sorted(['a', 'b', 'd', 'e']), sorted(['a', 'b', 'c', 'e', 'd']))),
+                 )
+
+env = Environment()
+
+
+@pytest.mark.parametrize('data, expected', UNIQUE_DATA)
+class TestUnique:
+    def test_unhashable(self, data, expected):
+        assert ms.unique(env, list(data)) == expected
+
+    def test_hashable(self, data, expected):
+        assert ms.unique(env, tuple(data)) == expected
+
+
+@pytest.mark.parametrize('dataset1, dataset2, expected', TWO_SETS_DATA)
+class TestIntersect:
+    def test_unhashable(self, dataset1, dataset2, expected):
+        assert sorted(ms.intersect(env, list(dataset1), list(dataset2))) == expected[0]
+
+    def test_hashable(self, dataset1, dataset2, expected):
+        assert sorted(ms.intersect(env, tuple(dataset1), tuple(dataset2))) == expected[0]
+
+
+@pytest.mark.parametrize('dataset1, dataset2, expected', TWO_SETS_DATA)
+class TestDifference:
+    def test_unhashable(self, dataset1, dataset2, expected):
+        assert sorted(ms.difference(env, list(dataset1), list(dataset2))) == expected[1]
+
+    def test_hashable(self, dataset1, dataset2, expected):
+        assert sorted(ms.difference(env, tuple(dataset1), tuple(dataset2))) == expected[1]
+
+
+@pytest.mark.parametrize('dataset1, dataset2, expected', TWO_SETS_DATA)
+class TestSymmetricDifference:
+    def test_unhashable(self, dataset1, dataset2, expected):
+        assert sorted(ms.symmetric_difference(env, list(dataset1), list(dataset2))) == expected[2]
+
+    def test_hashable(self, dataset1, dataset2, expected):
+        assert sorted(ms.symmetric_difference(env, tuple(dataset1), tuple(dataset2))) == expected[2]
+
+
+class TestLogarithm:
+    def test_log_non_number(self):
+        # Message changed in python3.6
+        with pytest.raises(AnsibleFilterTypeError, match='log\\(\\) can only be used on numbers: (a float is required|must be real number, not str)'):
+            ms.logarithm('a')
+        with pytest.raises(AnsibleFilterTypeError, match='log\\(\\) can only be used on numbers: (a float is required|must be real number, not str)'):
+            ms.logarithm(10, base='a')
+
+    def test_log_ten(self):
+        assert ms.logarithm(10, 10) == 1.0
+        assert ms.logarithm(69, 10) * 1000 // 1 == 1838
+
+    def test_log_natural(self):
+        assert ms.logarithm(69) * 1000 // 1 == 4234
+
+    def test_log_two(self):
+        assert ms.logarithm(69, 2) * 1000 // 1 == 6108
+
+
+class TestPower:
+    def test_power_non_number(self):
+        # Message changed in python3.6
+        with pytest.raises(AnsibleFilterTypeError, match='pow\\(\\) can only be used on numbers: (a float is required|must be real number, not str)'):
+            ms.power('a', 10)
+
+        with pytest.raises(AnsibleFilterTypeError, match='pow\\(\\) can only be used on numbers: (a float is required|must be real number, not str)'):
+            ms.power(10, 'a')
+
+    def test_power_squared(self):
+        assert ms.power(10, 2) == 100
+
+    def test_power_cubed(self):
+        assert ms.power(10, 3) == 1000
+
+
+class TestInversePower:
+    def test_root_non_number(self):
+        # Messages differed in python-2.6, python-2.7-3.5, and python-3.6+
+        with pytest.raises(AnsibleFilterTypeError, match="root\\(\\) can only be used on numbers:"
+                           " (invalid literal for float\\(\\): a"
+                           "|could not convert string to float: a"
+                           "|could not convert string to float: 'a')"):
+            ms.inversepower(10, 'a')
+
+        with pytest.raises(AnsibleFilterTypeError, match="root\\(\\) can only be used on numbers: (a float is required|must be real number, not str)"):
+            ms.inversepower('a', 10)
+
+    def test_square_root(self):
+        assert ms.inversepower(100) == 10
+        assert ms.inversepower(100, 2) == 10
+
+    def test_cube_root(self):
+        assert ms.inversepower(27, 3) == 3
+
+
+class TestRekeyOnMember():
+    # (Input data structure, member to rekey on, expected return)
+    VALID_ENTRIES = (
+        ([{"proto": "eigrp", "state": "enabled"}, {"proto": "ospf", "state": "enabled"}],
+         'proto',
+         {'eigrp': {'state': 'enabled', 'proto': 'eigrp'}, 'ospf': {'state': 'enabled', 'proto': 'ospf'}}),
+        ({'eigrp': {"proto": "eigrp", "state": "enabled"}, 'ospf': {"proto": "ospf", "state": "enabled"}},
+         'proto',
+         {'eigrp': {'state': 'enabled', 'proto': 'eigrp'}, 'ospf': {'state': 'enabled', 'proto': 'ospf'}}),
+    )
+
+    # (Input data structure, member to rekey on, expected error message)
+    INVALID_ENTRIES = (
+        # Fail when key is not found
+        (AnsibleFilterError, [{"proto": "eigrp", "state": "enabled"}], 'invalid_key', "Key invalid_key was not found"),
+        (AnsibleFilterError, {"eigrp": {"proto": "eigrp", "state": "enabled"}}, 'invalid_key', "Key invalid_key was not found"),
+        # Fail when key is duplicated
+        (AnsibleFilterError, [{"proto": "eigrp"}, {"proto": "ospf"}, {"proto": "ospf"}],
+         'proto', 'Key ospf is not unique, cannot correctly turn into dict'),
+        # Fail when value is not a dict
+        (AnsibleFilterTypeError, ["string"], 'proto', "List item is not a valid dict"),
+        (AnsibleFilterTypeError, [123], 'proto', "List item is not a valid dict"),
+        (AnsibleFilterTypeError, [[{'proto': 1}]], 'proto', "List item is not a valid dict"),
+        # Fail when we do not send a dict or list
+        (AnsibleFilterTypeError, "string", 'proto', "Type is not a valid list, set, or dict"),
+        (AnsibleFilterTypeError, 123, 'proto', "Type is not a valid list, set, or dict"),
+    )
+
+    @pytest.mark.parametrize("list_original, key, expected", VALID_ENTRIES)
+    def test_rekey_on_member_success(self, list_original, key, expected):
+        assert ms.rekey_on_member(list_original, key) == expected
+
+    @pytest.mark.parametrize("expected_exception_type, list_original, key, expected", INVALID_ENTRIES)
+    def test_fail_rekey_on_member(self, expected_exception_type, list_original, key, expected):
+        with pytest.raises(expected_exception_type) as err:
+            ms.rekey_on_member(list_original, key)
+
+        assert err.value.message == expected
+
+    def test_duplicate_strategy_overwrite(self):
+        list_original = ({'proto': 'eigrp', 'id': 1}, {'proto': 'ospf', 'id': 2}, {'proto': 'eigrp', 'id': 3})
+        expected = {'eigrp': {'proto': 'eigrp', 'id': 3}, 'ospf': {'proto': 'ospf', 'id': 2}}
+        assert ms.rekey_on_member(list_original, 'proto', duplicates='overwrite') == expected