extend test to allow different puzzle 2 input

2024/puzzle_test.go

@@ -21,14 +21,15 @@ func TestPuzzles(t *testing.T) {
 		solver puzzle
 		ans1   string
 		ans2   string
-		input  string
+		inp1   string
+		inp2   string
 	}{
 
 		{
 			solver: Day1{},
 			ans1:   "11",
 			ans2:   "31",
-			input: `3   4
+			inp1: `3   4
 4   3
 2   5
 1   3
@@ -39,7 +40,7 @@ func TestPuzzles(t *testing.T) {
 			solver: Day2{},
 			ans1:   "2",
 			ans2:   "4",
-			input: `7 6 4 2 1
+			inp1: `7 6 4 2 1
 1 2 7 8 9
 9 7 6 2 1
 1 3 2 4 5
@@ -49,15 +50,19 @@ func TestPuzzles(t *testing.T) {
 		{
 			solver: Day3{},
 			ans1:   "161",
-			ans2:   "",
+			ans2:   "48",
-			input:  "xmul(2,4)%&mul[3,7]!@^do_not_mul(5,5)+mul(32,64]then(mul(11,8)mul(8,5))",
+			inp1:   "xmul(2,4)%&mul[3,7]!@^do_not_mul(5,5)+mul(32,64]then(mul(11,8)mul(8,5))",
+			inp2:   "xmul(2,4)&mul[3,7]!^don't()_mul(5,5)+mul(32,64](mul(11,8)undo()?mul(8,5))",
 		},
 	}
 
 	for i, tt := range tests {
 		name := fmt.Sprintf("Day%d", i+1)
 		t.Run(name, func(t *testing.T) {
-			p1, p2 := dup(tt.input)
+			p1, p2 := dup(tt.inp1)
+			if tt.inp2 != "" {
+				p2 = strings.NewReader(tt.inp2)
+			}
 			if got := tt.solver.Part1(p1); got != tt.ans1 {
 				t.Errorf("Part 1 = %s; expected %s", got, tt.ans1)
 			}