func BenchmarkNew(b *testing.B) {
	var matrix Matrix
	for i := 0; i < b.N; i++ {
		var err error
		matrix, err = New("1 2 3 10 11\n4 5 6 11 12\n7 8 9 12 13\n 8 7 6 13 14")
		if err != nil {
			b.Fatalf("Failed to create the matrix: %v", err)
		}
	}
	if matrix == nil {
		b.Fatalf("No matrix parsed")
	}
}

func BenchmarkRows(b *testing.B) {
	matrix, err := New("1 2 3\n4 5 6\n7 8 9\n 8 7 6")
	if err != nil {
		b.Fatalf("Failed to create the matrix: %v", err)
	}
	b.ResetTimer()
	var rows [][]int
	for i := 0; i < b.N; i++ {
		rows = matrix.Rows()
	}
	if len(rows) != 4 {
		b.Fatalf("Incorrect number of rows returned: %v", rows)
	}	
}

func BenchmarkCols(b *testing.B) {
	matrix, err := New("1 2 3 10 11\n4 5 6 11 12\n7 8 9 12 13\n 8 7 6 13 14")
	if err != nil {
		b.Fatalf("Failed to create the matrix: %v", err)
	}
	b.ResetTimer()
	var cols [][]int
	for i := 0; i < b.N; i++ {
		cols = matrix.Cols()
	}
	if len(cols) != 5 {
		b.Fatalf("Incorrect number of columns returned: %v", cols)
	}	
}