test(trace-exporter): enable UDS transport test for .NET Core 3.1 or greater

[ganeshnj]

Summary of changes

Run UDS tests for .NET Core 3.1 or greater

Reason for change

Because the test agent only supports UDS for .NET Core 3.1 or greater

dd-trace-dotnet/tracer/test/Datadog.Trace.TestHelpers/MockTracerAgent.cs

Lines 117 to 119 in 6f49ec9

	#if NETCOREAPP3_1_OR_GREATER
	public static UdsAgent Create(ITestOutputHelper output, UnixDomainSocketConfig config, AgentConfiguration agentConfiguration = null) => new UdsAgent(config) { Output = output, Configuration = agentConfiguration ?? new() };
	#endif

Implementation details

Wrapped UDS test under #if NETCOREAPP3_1_OR_GREATER preprocessor.

Test coverage

Other details

[andrewlock]

Execution-Time Benchmarks Report ⏱️

Execution-time results for samples comparing the following branches/commits:

• This PR (7073)
• master

Execution-time benchmarks measure the whole time it takes to execute a program. And are intended to measure the one-off costs. Cases where the execution time results for the PR are worse than latest master results are shown in red. The following thresholds were used for comparing the execution times:

• Welch test with statistical test for significance of 5%
• Only results indicating a difference greater than 5% and 5 ms are considered.

Note that these results are based on a single point-in-time result for each branch. For full results, see the dashboard.

Graphs show the p99 interval based on the mean and StdDev of the test run, as well as the mean value of the run (shown as a diamond below the graph).

gantt
    title Execution time (ms) FakeDbCommand (.NET Framework 4.8) 
    dateFormat  X
    axisFormat %s
    todayMarker off
    section Baseline
    This PR (7073) - mean (74ms)  : 67, 81
     .   : milestone, 74,
    master - mean (74ms)  : 69, 79
     .   : milestone, 74,

    section CallTarget+Inlining+NGEN
    This PR (7073) - mean (1,059ms)  : 1035, 1083
     .   : milestone, 1059,
    master - mean (1,069ms)  : 1049, 1089
     .   : milestone, 1069,

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gantt
    title Execution time (ms) FakeDbCommand (.NET Core 3.1) 
    dateFormat  X
    axisFormat %s
    todayMarker off
    section Baseline
    This PR (7073) - mean (110ms)  : 107, 114
     .   : milestone, 110,
    master - mean (111ms)  : 107, 115
     .   : milestone, 111,

    section CallTarget+Inlining+NGEN
    This PR (7073) - mean (737ms)  : 719, 755
     .   : milestone, 737,
    master - mean (744ms)  : 723, 765
     .   : milestone, 744,

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gantt
    title Execution time (ms) FakeDbCommand (.NET 6) 
    dateFormat  X
    axisFormat %s
    todayMarker off
    section Baseline
    This PR (7073) - mean (96ms)  : 94, 99
     .   : milestone, 96,
    master - mean (97ms)  : 93, 101
     .   : milestone, 97,

    section CallTarget+Inlining+NGEN
    This PR (7073) - mean (703ms)  : 676, 731
     .   : milestone, 703,
    master - mean (712ms)  : 685, 739
     .   : milestone, 712,

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gantt
    title Execution time (ms) HttpMessageHandler (.NET Framework 4.8) 
    dateFormat  X
    axisFormat %s
    todayMarker off
    section Baseline
    This PR (7073) - mean (189ms)  : 184, 195
     .   : milestone, 189,
    master - mean (190ms)  : 187, 192
     .   : milestone, 190,

    section CallTarget+Inlining+NGEN
    This PR (7073) - mean (1,169ms)  : 1153, 1184
     .   : milestone, 1169,
    master - mean (1,166ms)  : 1149, 1182
     .   : milestone, 1166,

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gantt
    title Execution time (ms) HttpMessageHandler (.NET Core 3.1) 
    dateFormat  X
    axisFormat %s
    todayMarker off
    section Baseline
    This PR (7073) - mean (268ms)  : 265, 272
     .   : milestone, 268,
    master - mean (269ms)  : 264, 274
     .   : milestone, 269,

    section CallTarget+Inlining+NGEN
    This PR (7073) - mean (932ms)  : 918, 947
     .   : milestone, 932,
    master - mean (932ms)  : 920, 943
     .   : milestone, 932,

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gantt
    title Execution time (ms) HttpMessageHandler (.NET 6) 
    dateFormat  X
    axisFormat %s
    todayMarker off
    section Baseline
    This PR (7073) - mean (262ms)  : 259, 265
     .   : milestone, 262,
    master - mean (262ms)  : 258, 267
     .   : milestone, 262,

    section CallTarget+Inlining+NGEN
    This PR (7073) - mean (929ms)  : 916, 942
     .   : milestone, 929,
    master - mean (928ms)  : 911, 944
     .   : milestone, 928,

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[datadog-datadog-prod-us1]

Datadog Report

All test runs 6f49ec9 🔗

✅ 2 Total Test Services: 0 Failed, 2 Passed
❄️ 1 with New Flaky

Test Services

Service Name	Failed	Known Flaky	New Flaky	Passed	Skipped	Total Time	Test Service View
dd-trace-dotnet	0	0	1	246811	2492	15h 59m 2.23s	Link
exploration_tests	0	0	0	22085	3	2m 11.61s	Link