def test_number_of_islands_7():
grid = [
["0"],
]
expected = 0
actual = num_islands(grid)
assert actual == expected
def test_number_of_islands_6():
grid = [
["1"],
]
expected = 1
actual = num_islands(grid)
assert actual == expected
def test_number_of_islands_2():
grid = [
["1", "1", "0", "0", "0"],
["1", "1", "0", "0", "0"],
["0", "0", "1", "0", "0"],
["0", "0", "0", "1", "1"],
]
expected = 3
actual = num_islands(grid)
assert actual == expected
def test_number_of_islands_5():
grid = [
["1", "O", "O", "O", "O", "O"],
["1", "O", "1", "1", "1", "1"],
["O", "O", "O", "O", "O", "O"],
["1", "1", "1", "O", "1", "1"],
["1", "1", "1", "O", "1", "1"],
["O", "O", "O", "O", "1", "1"],
]
expected = 4
actual = num_islands(grid)
assert actual == expected
def test_empty_1(self):
result = num_islands([])
self.assertEqual(result, 0)
def test_given_2(self):
result = num_islands([[1, 1, 0, 0, 0], [1, 1, 0, 0, 0],
[0, 0, 1, 0, 0], [0, 0, 0, 1, 1]])
self.assertEqual(result, 3)
def test_none(self):
result = num_islands(None)
self.assertEqual(result, 0)
def test_two_rows_2(self):
result = num_islands([[1, 0, 1], [1, 1, 0]])
self.assertEqual(result, 2)
def test_one_column(self):
result = num_islands([[1], [0], [1]])
self.assertEqual(result, 2)
def test_one_row(self):
result = num_islands([[1, 0, 1]])
self.assertEqual(result, 2)
def test_one_land(self):
result = num_islands([[1]])
self.assertEqual(result, 1)
def test_one_water(self):
result = num_islands([[0]])
self.assertEqual(result, 0)