restructure solutions dir

solutions/2/q238/solution_test.go

@@ -0,0 +1,32 @@
+package q238
+
+import (
+	"slices"
+	"testing"
+)
+
+func Test_productExceptSelf(t *testing.T) {
+	tests := []struct {
+		name string // description of this test case
+		// Named input parameters for target function.
+		nums []int
+		want []int
+	}{
+		{
+			nums: []int{1, 2, 3, 4},
+			want: []int{24, 12, 8, 6},
+		},
+		{
+			nums: []int{-1, 1, 0, -3, 3},
+			want: []int{0, 0, 9, 0, 0},
+		},
+	}
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			got := productExceptSelf(tt.nums)
+			if !slices.Equal(got, tt.want) {
+				t.Errorf("productExceptSelf() = %v, want %v", got, tt.want)
+			}
+		})
+	}
+}