mirror of
https://github.com/Luzifer/twitch-bot.git
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86 lines
2.2 KiB
Go
86 lines
2.2 KiB
Go
package raffle
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import (
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"math/rand"
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"testing"
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"github.com/stretchr/testify/assert"
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"github.com/stretchr/testify/require"
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)
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func testGenerateRaffe() raffle {
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r := raffle{
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MultiFollower: 1.1,
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MultiSubscriber: 1.2,
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MultiVIP: 1.5,
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Entries: make([]raffleEntry, 0, 837),
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}
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// Now lets generate 132 non-followers taking part
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for i := uint64(0); i < 132; i++ {
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r.Entries = append(r.Entries, raffleEntry{ID: i, Multiplier: 1})
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}
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// Now lets generate 500 followers taking part
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for i := uint64(0); i < 500; i++ {
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r.Entries = append(r.Entries, raffleEntry{ID: 10000 + i, Multiplier: r.MultiFollower})
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}
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// Now lets generate 200 subscribers taking part
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for i := uint64(0); i < 200; i++ {
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r.Entries = append(r.Entries, raffleEntry{ID: 20000 + i, Multiplier: r.MultiSubscriber})
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}
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// Now lets generate 5 VIPs taking part
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for i := uint64(0); i < 5; i++ {
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r.Entries = append(r.Entries, raffleEntry{ID: 30000 + i, Multiplier: r.MultiVIP})
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}
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// They didn't join in order so lets shuffle them
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rand.Shuffle(len(r.Entries), func(i, j int) { r.Entries[i], r.Entries[j] = r.Entries[j], r.Entries[i] })
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return r
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}
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func BenchmarkPickWinnerFromRaffle(b *testing.B) {
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tData := testGenerateRaffe()
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var err error
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b.Run("pick", func(b *testing.B) {
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for i := 0; i < b.N; i++ {
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_, err = pickWinnerFromRaffle(tData)
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require.NoError(b, err)
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}
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})
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}
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func TestPickWinnerFromRaffle(t *testing.T) {
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var (
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winners []uint64
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tData = testGenerateRaffe()
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)
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for i := 0; i < 5; i++ {
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w, err := pickWinnerFromRaffle(tData)
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require.NoError(t, err, "picking winner")
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winners = append(winners, w.ID)
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}
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t.Logf("winners: %v", winners)
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}
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func TestPickWinnerFromRaffleSpecial(t *testing.T) {
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r := raffle{}
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_, err := pickWinnerFromRaffle(r)
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assert.ErrorIs(t, errNoCandidatesLeft, err, "picking from 0 paricipants")
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r.Entries = append(r.Entries, raffleEntry{ID: 1, Multiplier: 1.0})
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winner, err := pickWinnerFromRaffle(r)
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assert.NoError(t, err, "picking from set of 1")
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assert.Equal(t, uint64(1), winner.ID, "expect the right winner")
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r.Entries[0].WasPicked = true
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_, err = pickWinnerFromRaffle(r)
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assert.ErrorIs(t, errNoCandidatesLeft, err, "picking from 1 paricipant, which already won")
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}
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