add a Contains function (#172)

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Marten Seemann 2022-01-10 05:01:27 -08:00 committed by GitHub
parent f9011923e3
commit 7768f965af
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2 changed files with 23 additions and 0 deletions

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@ -200,3 +200,13 @@ addrloop:
} }
return b return b
} }
// Contains reports whether addr is contained in addrs.
func Contains(addrs []Multiaddr, addr Multiaddr) bool {
for _, a := range addrs {
if addr.Equal(a) {
return true
}
}
return false
}

View File

@ -762,3 +762,16 @@ func TestFilterAddrs(t *testing.T) {
require.ElementsMatch(t, FilterAddrs(good, filter), good) require.ElementsMatch(t, FilterAddrs(good, filter), good)
require.ElementsMatch(t, FilterAddrs(goodAndBad, filter), good) require.ElementsMatch(t, FilterAddrs(goodAndBad, filter), good)
} }
func TestContains(t *testing.T) {
a1 := newMultiaddr(t, "/ip4/127.0.0.1/tcp/1234")
a2 := newMultiaddr(t, "/ip4/1.1.1.1/tcp/999")
a3 := newMultiaddr(t, "/ip4/1.2.3.4/udp/443/quic")
addrs := []Multiaddr{a1, a2, a3}
require.True(t, Contains(addrs, a1))
require.True(t, Contains(addrs, a2))
require.True(t, Contains(addrs, a3))
require.False(t, Contains(addrs, newMultiaddr(t, "/ip4/4.3.2.1/udp/1234/utp")))
require.False(t, Contains(nil, a1))
}