48 lines
929 B
Go
48 lines
929 B
Go
package challenge
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import (
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"math/rand"
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"testing"
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"time"
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)
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func TestWinner(t *testing.T) {
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// filtered is a list of participating gophers.
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// Basically, a gophers list without ignored members.
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filtered := []gopher{}
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// keys is a set of all participants keys.
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// Needed to detect collisions.
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keys := map[string]bool{}
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// Check whether all fields are set correctly.
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for i, g := range gophers {
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if g.name == "" {
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t.Errorf("gopher[%d] name is empty", i)
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continue
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}
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if g.post == "" {
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t.Errorf("gopher[%d] (%s) post is empty", i, g.name)
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continue
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}
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if keys[g.key()] {
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t.Errorf("gopher[%d] (%s) is a duplicate", i, g.name)
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continue
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}
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keys[g.key()] = true
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if g.tester {
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continue
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}
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filtered = append(filtered, g)
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}
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if len(filtered) != 0 {
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rand.Seed(time.Now().UTC().UnixNano())
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winner := rand.Intn(len(filtered))
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t.Logf("The winner is: %s!", filtered[winner].key())
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}
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}
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