much better day13 after looking at others

2022/go/day13/day13_test.go

@@ -0,0 +1,67 @@
+package day13
+
+import (
+	"testing"
+	"strings"
+	"github.com/stretchr/testify/require"
+)
+
+func TestPart1(t *testing.T) {
+	input := `[1,1,3,1,1]
+[1,1,5,1,1]
+
+[[1],[2,3,4]]
+[[1],4]
+
+[9]
+[[8,7,6]]
+
+[[4,4],4,4]
+[[4,4],4,4,4]
+
+[7,7,7,7]
+[7,7,7]
+
+[]
+[3]
+
+[[[]]]
+[[]]
+
+[1,[2,[3,[4,[5,6,7]]]],8,9]
+[1,[2,[3,[4,[5,6,0]]]],8,9]`
+stringSlice := strings.Split(input, "\n")
+r := Part1(stringSlice)
+
+	require.Equal(t, 13, r)
+}
+
+func TestPart2(t *testing.T) {
+	input := `[1,1,3,1,1]
+[1,1,5,1,1]
+
+[[1],[2,3,4]]
+[[1],4]
+
+[9]
+[[8,7,6]]
+
+[[4,4],4,4]
+[[4,4],4,4,4]
+
+[7,7,7,7]
+[7,7,7]
+
+[]
+[3]
+
+[[[]]]
+[[]]
+
+[1,[2,[3,[4,[5,6,7]]]],8,9]
+[1,[2,[3,[4,[5,6,0]]]],8,9]`
+stringSlice := strings.Split(input, "\n")
+r := Part2(stringSlice)
+
+	require.Equal(t, 140, r)
+}