Enable EVP flagevaluation system tests for .NET

[leoromanovsky]

Motivation

Enable the merged server-side EVP flagevaluation system tests for .NET after the .NET SDK PR validated the shared contract and local system-test path.

Changes

• Changes tests/ffe/test_flag_eval_evp.py in manifests/dotnet.yml from missing_feature (FFL-2446) to v3.47.0.

Decisions

• This PR is stacked on the shared flagevaluation system-test baseline so the language diff remains a single manifest entry.
• The matching SDK implementation is feat(openfeature): emit server-side EVP flagevaluation dd-trace-dotnet#8787.
• This PR remains draft until the SDK fanout review is complete.

Validation Evidence

• git diff --check - PASS.
• System-test image package check: /app/app.deps.json contains Datadog.Trace/3.47.0 and Datadog.FeatureFlags.OpenFeature/2.3.0; /opt/datadog/Datadog.Trace.ClrProfiler.Native.so is present.
• SYSTEM_TEST_BUILD_TIMEOUT=1800 ./build.sh --library dotnet --weblog-variant poc - PASS on 2026-06-20.
• TEST_LIBRARY=dotnet WEBLOG_VARIANT=poc ./run.sh +l dotnet FEATURE_FLAGGING_AND_EXPERIMENTATION -k "test_flag_eval_evp" - PASS on 2026-06-20, 8 passed, 2627 deselected in 85.95s with Library: dotnet@3.47.0.
• Degradation payload evidence from the passing run: one flagevaluation payload emitted 10001 rows with total evaluation_count=12000, including a capped aggregate row with evaluation_count=2000 and omitted targeting_key/context.
• Real-backend dogfooding prefix is recorded in the .NET SDK PR: server-evp-e2e-dotnet-1781931066-user-.

[github-actions]

CODEOWNERS have been resolved as:

manifests/dotnet.yml                                                    @DataDog/apm-dotnet @DataDog/asm-dotnet

[datadog-datadog-prod-us1]

 

✨ Fix all issues with BitsAI

⚠️ Warnings

🚦 3 Pipeline jobs failed

Testing the test | System Tests (dotnet, dev) / End-to-end #1 / poc 1     

🧪 8 Tests failed

tests.ffe.test_flag_eval_evp.Test_FFE_EVP_Flagevaluation_Basic.test_ffe_evp_flagevaluation_basic[poc] from system_tests_suite  

AssertionError: Timed out waiting for EVP flagevaluation event for flag evp-basic-flag
assert False
 +  where False = <bound method ProxyBasedInterfaceValidator.wait_for of AgentInterfaceValidator('agent')>(<function wait_for_evp_flagevaluation_event.<locals>.<lambda> at 0x7f9e7a3dc0e0>, timeout=30)
 +    where <bound method ProxyBasedInterfaceValidator.wait_for of AgentInterfaceValidator('agent')> = AgentInterfaceValidator('agent').wait_for
 +      where AgentInterfaceValidator('agent') = interfaces.agent

self = <tests.ffe.test_flag_eval_evp.Test_FFE_EVP_Flagevaluation_Basic object at 0x7f9eaadd3560>

    def test_ffe_evp_flagevaluation_basic(self) -> None:
        assert self.r.status_code == 200, f"Flag evaluation failed: {self.r.text}"
...

tests.ffe.test_flag_eval_evp.Test_FFE_EVP_Flagevaluation_Burst_Aggregation.test_ffe_evp_flagevaluation_burst_aggregation[poc] from system_tests_suite  

AssertionError: Timed out waiting for EVP flagevaluation event for flag evp-burst-aggregation-flag
assert False
 +  where False = <bound method ProxyBasedInterfaceValidator.wait_for of AgentInterfaceValidator('agent')>(<function wait_for_evp_flagevaluation_event.<locals>.<lambda> at 0x7f9e7a3dfec0>, timeout=30)
 +    where <bound method ProxyBasedInterfaceValidator.wait_for of AgentInterfaceValidator('agent')> = AgentInterfaceValidator('agent').wait_for
 +      where AgentInterfaceValidator('agent') = interfaces.agent

self = <tests.ffe.test_flag_eval_evp.Test_FFE_EVP_Flagevaluation_Burst_Aggregation object at 0x7f9eaadd29c0>

    def test_ffe_evp_flagevaluation_burst_aggregation(self) -> None:
        for index, response in enumerate(self.responses):
...

View all 8 test failures

Testing the test | System Tests (dotnet, dev) / End-to-end #1 / uds 1     

🧪 8 Tests failed

tests.ffe.test_flag_eval_evp.Test_FFE_EVP_Flagevaluation_Basic.test_ffe_evp_flagevaluation_basic[uds] from system_tests_suite  

AssertionError: Timed out waiting for EVP flagevaluation event for flag evp-basic-flag
assert False
 +  where False = <bound method ProxyBasedInterfaceValidator.wait_for of AgentInterfaceValidator('agent')>(<function wait_for_evp_flagevaluation_event.<locals>.<lambda> at 0x7fa2dee751c0>, timeout=30)
 +    where <bound method ProxyBasedInterfaceValidator.wait_for of AgentInterfaceValidator('agent')> = AgentInterfaceValidator('agent').wait_for
 +      where AgentInterfaceValidator('agent') = interfaces.agent

self = <tests.ffe.test_flag_eval_evp.Test_FFE_EVP_Flagevaluation_Basic object at 0x7fa31040fbf0>

    def test_ffe_evp_flagevaluation_basic(self) -> None:
        assert self.r.status_code == 200, f"Flag evaluation failed: {self.r.text}"
...

tests.ffe.test_flag_eval_evp.Test_FFE_EVP_Flagevaluation_Burst_Aggregation.test_ffe_evp_flagevaluation_burst_aggregation[uds] from system_tests_suite  

AssertionError: Timed out waiting for EVP flagevaluation event for flag evp-burst-aggregation-flag
assert False
 +  where False = <bound method ProxyBasedInterfaceValidator.wait_for of AgentInterfaceValidator('agent')>(<function wait_for_evp_flagevaluation_event.<locals>.<lambda> at 0x7fa2dee5c2c0>, timeout=30)
 +    where <bound method ProxyBasedInterfaceValidator.wait_for of AgentInterfaceValidator('agent')> = AgentInterfaceValidator('agent').wait_for
 +      where AgentInterfaceValidator('agent') = interfaces.agent

self = <tests.ffe.test_flag_eval_evp.Test_FFE_EVP_Flagevaluation_Burst_Aggregation object at 0x7fa3108cf410>

    def test_ffe_evp_flagevaluation_burst_aggregation(self) -> None:
        for index, response in enumerate(self.responses):
...

View all 8 test failures

Testing the test | all-jobs-are-green     

ℹ️ Info

No other issues found (see more)

❄️ No new flaky tests detected

Useful? React with 👍 / 👎

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🔗 Commit SHA: 43c3969 | Docs | Datadog PR Page | Give us feedback!}

[datadog-system-tests-org]

⚠️ Warnings

🚦 3 Pipeline jobs failed

Testing the test | System Tests (dotnet, dev) / End-to-end #1 / poc 1     

Testing the test | System Tests (dotnet, dev) / End-to-end #1 / uds 1     

Testing the test | all-jobs-are-green     

_{This comment will be updated automatically if new data arrives.
🔗 Commit SHA: 43c3969 | Docs | Give us feedback!}