def test_is_valid_cell_value_placed(unsolved):
cell = (5, 1)
value = 1
unsolved[cell] = value
assert is_valid_cell(unsolved, cell) is True
def test_is_not_valid_cell_row_value_placed(unsolved):
cell = (2, 4)
value = 6
unsolved[cell] = value
assert is_valid_cell(unsolved, cell) is False
def test_is_not_valid_cell_column(unsolved):
cell = (6, 6)
value = 8
assert is_valid_cell(unsolved, cell, value) is False
def test_is_not_valid_cell_box(unsolved):
cell = (1, 4)
value = 7
assert is_valid_cell(unsolved, cell, value) is False
def test_is_valid_cell(unsolved):
cell = (5, 1)
value = 1
assert is_valid_cell(unsolved, cell, value) is True
def test_is_not_valid_cell_row(unsolved):
cell = (2, 4)
value = 6
assert is_valid_cell(unsolved, cell, value) is False
def test_is_valid_cell_zero_placed(one_missing):
cell = (4, 4)
assert is_valid_cell(one_missing, cell) is False
def test_is_valid_cell_zero(one_missing):
cell = (0, 0)
value = 0
assert is_valid_cell(one_missing, cell, value) is False
def test_is_not_valid_cell_already_placed(solved):
cell = (4, 4)
value = solved[cell] + 1
assert is_valid_cell(solved, cell, value) is False
def test_is_valid_cell_already_placed_wrong(solved):
cell = (4, 4)
value = solved[cell]
solved[cell] = value + 1
assert is_valid_cell(solved, cell, value) is True
def test_is_valid_cell_already_placed(solved):
cell = (4, 4)
value = solved[cell]
assert is_valid_cell(solved, cell, value) is True
def test_is_not_valid_cell_box_value_placed(unsolved):
cell = (1, 4)
value = 7
unsolved[cell] = value
assert is_valid_cell(unsolved, cell) is False
def test_is_not_valid_cell_column_value_placed(unsolved):
cell = (6, 6)
value = 8
unsolved[cell] = value
assert is_valid_cell(unsolved, cell) is False