aoc-2024/cmd/day_2/main_test.go

package main

import (
	"testing"
)

func TestReportSafety(t *testing.T) {
	safe := []struct {
		Name   string
		Report []int
	}{
		{"Safe 1", []int{7, 6, 4, 2, 1}},
		{"Safe 2", []int{1, 3, 6, 7, 9}},
	}
	unsafe := []struct {
		Name   string
		Report []int
	}{
		{"Exceeds local bound 1", []int{1, 2, 7, 8, 9}},
		{"Exceeds local bound 2", []int{9, 7, 6, 2, 1}},
		{"Not monotonic", []int{1, 3, 2, 4, 5}},
		{"Not strict monotonic", []int{8, 6, 4, 4, 1}},
	}

	for _, s := range safe {
		if !isSafe(s.Report) {
			t.Errorf("Safe report %#v found unsafe", s.Name)
		}
	}
	for _, u := range unsafe {
		if isSafe(u.Report) {
			t.Errorf("Unsafe report %#v found safe", u.Name)
		}
	}
}