It("uses the DNS Server Factory to create a DNS server with the listener", func() {
err := startDNS.Execute(context)
Expect(err).NotTo(HaveOccurred())
Expect(dnsServerFactory.NewCallCount()).To(Equal(1))
packetConn, sboxNS := dnsServerFactory.NewArgsForCall(0)
Expect(packetConn).To(BeIdenticalTo(returnedListener))
Expect(sboxNS).To(Equal(ns))
})
It("passes the dns server to the sandbox to be launched", func() {
err := startDNS.Execute(context)
Expect(err).NotTo(HaveOccurred())
Expect(sbox.LaunchDNSCallCount()).To(Equal(1))
Expect(sbox.LaunchDNSArgsForCall(0)).To(Equal(dnsServer))
})
Context("when parsing the listen address fails", func() {
BeforeEach(func() {
startDNS.ListenAddress = "some-bogus-address"
})
It("returns a meaningful error", func() {
err := startDNS.Execute(context)
Expect(err).To(MatchError(MatchRegexp("resolve udp address:.*some-bogus-address")))
})
})
Context("when creating the dummy link fails", func() {
BeforeEach(func() {
