def test_all_edges_equal():
assert is_valid_triangle(a=6, b=6, c=6) == True
def test_two_edges_equal():
assert is_valid_triangle(a=6, b=6, c=10) == True
def test_first_edge_longer():
assert is_valid_triangle(a=11, b=5, c=5) == False
def test_inequal_triangle():
assert is_valid_triangle(a=11, b=5, c=6) == True
def test_second_edge_longer():
assert is_valid_triangle(a=5, b=11, c=5) == False
def test_third_edge_longer():
assert is_valid_triangle(a=5, b=5, c=11) == False
def test_all_edges_different_first_edge_longer():
assert is_valid_triangle(a=10, b=7, c=5) == True
def test_all_edges_different_second_edge_longer():
assert is_valid_triangle(a=7, b=10, c=5) == True
def test_all_edges_different():
assert is_valid_triangle(a=5, b=7, c=10) == True