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Merged
merged 2 commits into from
Feb 20, 2018
Merged

saddle-points: update tests to v1.1.0 #1303

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saddle-points: update tests to v1.1.0
mrcfps Feb 17, 2018
d5f78e0
Merge branch 'master' into saddle-points-1218
cmccandless Feb 20, 2018
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36 changes: 18 additions & 18 deletions exercises/saddle-points/saddle_points_test.py
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Original file line number Diff line number Diff line change
Expand Up @@ -10,36 +10,36 @@
from saddle_points import saddle_points


# Tests adapted from `problem-specifications//canonical-data.json` @ v1.0.0
# Tests adapted from `problem-specifications//canonical-data.json` @ v1.1.0

class SaddlePointTest(unittest.TestCase):
def test_one_saddle(self):
inp = [[9, 8, 7], [5, 3, 2], [6, 6, 7]]
self.assertEqual(saddle_points(inp), set([(1, 0)]))
def test_identify_single_saddle_point(self):
matrix = [[9, 8, 7], [5, 3, 2], [6, 6, 7]]
self.assertEqual(saddle_points(matrix), set([(1, 0)]))

def test_empty_matrix(self):
def test_empty_matrix_has_no_saddle_points(self):
self.assertEqual(saddle_points([]), set())

def test_no_saddle(self):
inp = [[1, 2, 3], [3, 1, 2], [2, 3, 1]]
self.assertEqual(saddle_points(inp), set())
def test_identify_lack_of_saddle_points_when_there_are_none(self):
matrix = [[1, 2, 3], [3, 1, 2], [2, 3, 1]]
self.assertEqual(saddle_points(matrix), set())

def test_mult_saddle(self):
inp = [[4, 5, 4], [3, 5, 5], [1, 5, 4]]
ans = set([(0, 1), (1, 1), (2, 1)])
self.assertEqual(saddle_points(inp), ans)
def test_identify_multiple_saddle_points(self):
matrix = [[4, 5, 4], [3, 5, 5], [1, 5, 4]]
expected = set([(0, 1), (1, 1), (2, 1)])
self.assertEqual(saddle_points(matrix), expected)

def test_indentify_saddle_bottom_right_corner(self):
inp = [[8, 7, 9], [6, 7, 6], [3, 2, 5]]
ans = set([(2, 2)])
self.assertEqual(saddle_points(inp), ans)
def test_identify_saddle_point_in_bottom_right_corner(self):
matrix = [[8, 7, 9], [6, 7, 6], [3, 2, 5]]
expected = set([(2, 2)])
self.assertEqual(saddle_points(matrix), expected)

# Additional tests for this track

def test_irregular_matrix(self):
inp = [[3, 2, 1], [0, 1], [2, 1, 0]]
matrix = [[3, 2, 1], [0, 1], [2, 1, 0]]
with self.assertRaisesWithMessage(ValueError):
saddle_points(inp)
saddle_points(matrix)

# Utility functions
def setUp(self):
Expand Down