package service

import (
	"testing"
	"time"

	"github.com/stretchr/testify/assert"
)

var (
	key = "test"
	val = []string{"val1", "val2", "val3"}
)

func TestCacheGet(t *testing.T) {
	t.Parallel()

	c := &cache{
		cache: make(map[string][]string),
	}

	c.cache[key] = val

	assert.Equal(t, c.Get(key), val)
	assert.Nil(t, c.Get("invalid-key"))
}

func TestCacheDelete(t *testing.T) {
	t.Parallel()

	c := &cache{
		cache: make(map[string][]string),
	}

	c.cache[key] = val
	c.Delete(key)

	assert.Nil(t, c.cache[key])
}

func TestCacheInsert(t *testing.T) {
	t.Parallel()

	expirationTime := 20 * time.Millisecond
	c := &cache{
		cache:      make(map[string][]string),
		expiration: expirationTime,
	}

	c.Insert(key, val)
	assert.Equal(t, c.Get(key), val)

	assert.Eventually(t, func() bool {
		return c.Get(key) == nil
	}, expirationTime+(5*time.Millisecond), 1*time.Millisecond)
}