/
lightsoff_test.go
67 lines (53 loc) · 1.1 KB
/
lightsoff_test.go
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package lightsoff_test
import (
"sync"
"github.com/poy/lightsoff"
. "github.com/onsi/ginkgo"
. "github.com/onsi/gomega"
)
var _ = Describe("Lightsoff", func() {
var (
lightsOff *lightsoff.LightsOff
funcCalled chan struct{}
)
BeforeEach(func() {
funcCalled = make(chan struct{})
lightsOff = lightsoff.New(5, func() {
close(funcCalled)
})
})
It("calls the callback function once everyone is done", func() {
for i := 0; i < 5; i++ {
go func() {
lightsOff.TurnOff()
}()
}
Eventually(funcCalled).Should(BeClosed())
})
It("calls the callback only once", func() {
var wg sync.WaitGroup
wg.Add(50)
defer wg.Wait()
for i := 0; i < 50; i++ {
go func() {
defer wg.Done()
lightsOff.TurnOff()
}()
}
Eventually(funcCalled).Should(BeClosed())
})
Context("Incorrectly initialized", func() {
It("panics if count is less than 0", func() {
f := func() {
lightsoff.New(-5, func() {})
}
Expect(f).To(Panic())
})
It("panics if the callback is nil", func() {
f := func() {
lightsoff.New(5, nil)
}
Expect(f).To(Panic())
})
})
})