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[FEAT] Add extra matrix tests

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NADAL Jean-Baptiste
2024-02-05 14:28:40 +01:00
parent f847550686
commit 1dac519cf8
3 changed files with 80 additions and 18 deletions
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67
tests/03_matrix.cpp
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@@ -385,20 +385,79 @@ TEST_CASE("[Matrix] Calculating the inverse of a matrix", "[Matrix]")
{ 1, -3, 7, 4}
};
Matrix b_inverted = {
Matrix a_inverted = {
{ 0.21805, 0.45113, 0.24060, -0.04511},
{-0.80827, -1.45677, -0.44361, 0.52068},
{-0.07895, -0.22368, -0.05263, 0.19737},
{-0.52256, -0.81391, -0.30075, 0.30639}
};
auto [b, the_status] = a.inverse();
Matrix b = a.inverse();
REQUIRE(the_status == true);
REQUIRE(a.determinant() == 532);
REQUIRE(a.cofactor(2, 3) == -160);
REQUIRE(b[3][2] == -160.0 / 532.0);
REQUIRE(a.cofactor(3, 2) == 105);
REQUIRE(b[2][3] == 105.0 / 532.0);
REQUIRE(b == b_inverted);
REQUIRE(b == a_inverted);
}
/* ------------------------------------------------------------------------- */
TEST_CASE("[Matrix] Calculating the inverse of another matrix", "[Matrix]")
{
Matrix a = {
{ 8, -5, 9, 2},
{ 7, 5, 6, 1},
{-6, 0, 9, 6},
{-3, 0, -9, -4}
};
Matrix a_inverted = {
{-0.15385, -0.15385, -0.28205, -0.53846},
{-0.07692, 0.12308, 0.02564, 0.03077},
{ 0.35897, 0.35897, 0.43590, 0.92308},
{-0.69231, -0.69231, -0.76923, -1.92308}
};
REQUIRE(a.inverse() == a_inverted);
}
/* ------------------------------------------------------------------------- */
TEST_CASE("[Matrix] Calculating the inverse of third matrix", "[Matrix]")
{
Matrix a = {
{ 9, 3, 0, 9},
{-5, -2, -6, -3},
{-4, 9, 6, 4},
{-7, 6, 6, 2}
};
Matrix a_inverted = {
{-0.04074, -0.07778, 0.14444, -0.22222},
{-0.07778, 0.03333, 0.36667, -0.33333},
{-0.02901, -0.14630, -0.10926, 0.12963},
{ 0.17778, 0.06667, -0.26667, 0.33333}
};
REQUIRE(a.inverse() == a_inverted);
}
/* ------------------------------------------------------------------------- */
TEST_CASE("[Matrix] Multiplying a product by its inverse", "[Matrix]")
{
Matrix a = {
{ 3, -9, 7, 3},
{ 3, -8, 2, -9},
{-4, 4, 4, 1},
{-6, 5, -1, 1}
};
Matrix b = {
{8, 2, 2, 2},
{3, -1, 7, 0},
{7, 0, 5, 4},
{6, -2, 0, 5}
};
Matrix c = a * b;
REQUIRE(c * b.inverse() == a);
}