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Robustify a name resolution test #63259

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Merged
danmoseley merged 2 commits into from
Jan 4, 2022
Merged

Robustify a name resolution test #63259

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6dcfeb0
fix TryGetAddrInfo_HostName_TryGetNameInfo()
danmoseley Jan 1, 2022
bd3c9aa
Fix network test
danmoseley Jan 1, 2022
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Fix network test
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@danmoseley
danmoseley committed Jan 1, 2022
commit bd3c9aa442b2ebda6dad164be0be9157c62121ba
13 changes: 12 additions & 1 deletion src/libraries/System.Net.NameResolution/tests/PalTests/NameResolutionPalTests.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -155,7 +155,18 @@ public void TryGetAddrInfo_LocalHost_TryGetNameInfo()
Assert.NotNull(aliases);
Assert.NotNull(addresses);

string name = NameResolutionPal.TryGetNameInfo(addresses[0], out error, out nativeErrorCode);
// Not all addresses returned by TryGetAddInfo can be resolved to host names, depending on network configuration.
// However at least one should be.
string name = null;
foreach(IPAddress address in addresses)
{
name = NameResolutionPal.TryGetNameInfo(address, out error, out nativeErrorCode);
if (error != SocketError.HostNotFound)
{
break;
}
}

Assert.Equal(SocketError.Success, error);
Assert.NotNull(name);
}
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