Joseph Doherty
27 lines
1.4 KiB
C#
27 lines
1.4 KiB
C#
using Opc.Ua;
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using ZB.MOM.WW.ScadaBridge.DataConnectionLayer.Adapters;
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namespace ZB.MOM.WW.ScadaBridge.DataConnectionLayer.Tests.Adapters;
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public class OpcUaSecurityDowngradeTests
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{
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/// <summary>Verifies that DC4: requested protection never falls back to none.</summary>
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/// <param name="discoveryFails">The discovery fails.</param>
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[Theory]
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[InlineData(false)]
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[InlineData(true)]
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public async Task DC4_RequestedProtectionNeverFallsBackToNone(bool discoveryFails)
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{
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await Assert.ThrowsAsync<InvalidOperationException>(() => RealOpcUaClient.DiscoverEndpointAsync("opc.tcp://test:4840",
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MessageSecurityMode.SignAndEncrypt, _ => discoveryFails
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? throw new Exception("discovery unavailable")
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: Task.FromResult(new EndpointDescriptionCollection { new("opc.tcp://test:4840") { SecurityMode = MessageSecurityMode.None } })));
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}
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/// <summary>Verifies that DC4: exact requested mode is selected.</summary>
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[Fact]
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public async Task DC4_ExactRequestedModeIsSelected()
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{
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var encrypted = new EndpointDescription("opc.tcp://test:4840") { SecurityMode = MessageSecurityMode.SignAndEncrypt };
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Assert.Same(encrypted, await RealOpcUaClient.DiscoverEndpointAsync("opc.tcp://test:4840", MessageSecurityMode.SignAndEncrypt,
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_ => Task.FromResult(new EndpointDescriptionCollection { new("opc.tcp://test:4840"), encrypted })));
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}
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}
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