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-rw-r--r--tests/utilities_tests/steady_state_test.py6
1 files changed, 6 insertions, 0 deletions
diff --git a/tests/utilities_tests/steady_state_test.py b/tests/utilities_tests/steady_state_test.py
index d80c60d..564c090 100644
--- a/tests/utilities_tests/steady_state_test.py
+++ b/tests/utilities_tests/steady_state_test.py
@@ -57,3 +57,9 @@ class SteadyStateTest(unittest.TestCase):
data_series = [[-15, 0.43], [-16, 0.41], [-3, 0.45], [4, 0.42]]
actual = SteadyState.steady_state(data_series)
self.assertEqual(expected, actual)
+
+ def test_negative_slope(self):
+ expected = False
+ data_series = [[1.3, 1], [1.2, 1], [1.1, 1.1], [1.0, 1.1]]
+ actual = SteadyState.steady_state(data_series)
+ self.assertEqual(expected, actual)