2017-day15: some bitwise stuff to compare binary numbers

2017/day15/main_test.go

@@ -0,0 +1,31 @@
+package main
+
+import (
+	"testing"
+
+	"github.com/alexchao26/advent-of-code-go/util"
+)
+
+var example = `Generator A starts with 65
+Generator B starts with 8921`
+
+func Test_duelingGenerators(t *testing.T) {
+	tests := []struct {
+		name  string
+		input string
+		part  int
+		want  int
+	}{
+		{"example_part1", example, 1, 588},
+		{"actual_part1", util.ReadFile("input.txt"), 1, 592},
+		{"example_part2", example, 2, 309},
+		{"actual_part2", util.ReadFile("input.txt"), 2, 320},
+	}
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			if got := duelingGenerators(tt.input, tt.part); got != tt.want {
+				t.Errorf("duelingGenerators() = %v, want %v", got, tt.want)
+			}
+		})
+	}
+}