public void MatricesMatrix_GetColumnWidthTest() { Matrix m1 = new Matrix(1); Matrix m2 = new Matrix(2); Matrix m3 = new Matrix(3); Matrix m4 = new Matrix(4); MatricesMatrix testMatricesMatrix = new MatricesMatrix(2, 2); testMatricesMatrix.SetElement(0, 0, m1); testMatricesMatrix.SetElement(0, 1, m3); testMatricesMatrix.SetElement(1, 0, m2); testMatricesMatrix.SetElement(1, 1, m4); int expectedResult1 = 2; int expectedResult2 = 4; int actualResult1 = testMatricesMatrix.GetColumnWidth(0); int actualResult2 = testMatricesMatrix.GetColumnWidth(1); (actualResult1 == expectedResult1).Should().BeTrue(); (actualResult2 == expectedResult2).Should().BeTrue(); }