public void Will_return_correct_edit_length_random_strings(int[] a, int[] b, int actualEditLength)
{
var differ = new TestableDiffer();
var res = differ.TestCalculateEditLength(a, 0, a.Length, b, 0, b.Length);
Assert.Equal(actualEditLength, res.EditLength);
}
public void Will_return_length_0_for_arrays()
{
var differ = new TestableDiffer();
var res = differ.TestCalculateEditLength(new int[0], 0, 0, new int[0], 0, 0);
Assert.Equal(0, res.EditLength);
}
public void Will_return_correct_length_when_start_and_ends_are_changed()
{
var differ = new TestableDiffer();
int[] b = { 1, 2, 3, 0, 5, 6, 7, 8 };
int[] a = { 4, 2, 3, 4, 5, 6, 7, 9 };
var res = differ.TestCalculateEditLength(a, 1, a.Length - 1, b, 1, b.Length - 1);
Assert.Equal(2, res.EditLength);
}
public void Will_return_length_of_b_if_a_is_empty()
{
var differ = new TestableDiffer();
int[] b = { 1, 2, 3, 4, 5, 6, 7, 8 };
int[] a = { };
var res = differ.TestCalculateEditLength(a, 0, a.Length, b, 0, b.Length);
Assert.Equal(b.Length, res.EditLength);
}
public void Will_throw_if_arrays_are_null()
{
var differ = new TestableDiffer();
int[] a = null;
int[] b = null;
var ex = Record.Exception(() => differ.TestCalculateEditLength(a, 0, 0, b, 0, 0)) as ArgumentNullException;
Assert.NotNull(ex);
}
public void Will_return_snake_of_zero_length_for_unique_arrays()
{
var differ = new TestableDiffer();
int[] a = { 1, 2, 3, 4, 5, 6, 7, 8 };
int[] b = { 11, 12, 23, 54, 56 };
var res = differ.TestCalculateEditLength(a, 0, a.Length, b, 0, b.Length);
Assert.Equal(res.StartX, res.EndX);
Assert.Equal(res.StartY, res.EndY);
Assert.Equal(a.Length + b.Length, res.EditLength);
}