Enable EVP flagevaluation system tests for Go

[leoromanovsky]

Motivation

Go has local passing evidence for the server-side EVP flagevaluation system tests added in #7146. This stacked PR enables the manifest entry for Go only, keeping other SDK languages disabled until their own local validation passes.

Changes

• Enables tests/ffe/test_flag_eval_evp.py for Go from v2.10.0-dev.
• Leaves all other Go FFE manifest entries unchanged.
• Keeps this PR based on leo.romanovsky/ffe-evp-flagevaluation-system-tests, not stacked on another language enablement branch.

Decisions

• This PR stays draft until the Go SDK PR and base system-tests PR are reviewed together.
• The enablement is language-scoped; other SDK manifests remain disabled until their own evidence is collected.
• Local validation used the Go SDK PR checkout and the golang/net-http weblog.

Evidence

Local run on 2026-06-17 UTC:

• SDK commit: 5e9b8b014cb6d4ff27fe1278f42bf584959fb38b
• system-tests commit: d72d3a64ff1c02016ffde3e4c856c4d3c004818d
• Weblog: golang / net-http
• Runtime context: Agent 7.80.1; library golang@2.10.0-dev; Linux aarch64

Commands:

./build.sh golang -w net-http
./run.sh FEATURE_FLAGGING_AND_EXPERIMENTATION -k "test_flag_eval_evp"

Result: 8 passed, 2577 deselected in 66.98s.

Agent-visible EVP checks from /api/v2/flagevaluations payloads:

• evp-count-flag: 5 evaluations -> 1 event, evaluation_count=5
• evp-burst-aggregation-flag: 512 evaluations -> 1 event, evaluation_count=512
• evp-high-cardinality-aggregation-flag: 128 distinct buckets -> 128 events, total evaluation_count=128
• evp-degradation-flag: 10,050 evaluations -> 10,001 events, including 1 degraded bucket with evaluation_count=50

Local logs:

• .tmp/evidence/golang-build-net-http-current-20260617T031133Z.log
• .tmp/evidence/golang-test_flag_eval_evp-current-20260617T031207Z.log

[github-actions]

CODEOWNERS have been resolved as:

manifests/golang.yml                                                    @DataDog/dd-trace-go-guild

[datadog-datadog-prod-us1-2]

 

✨ Fix all issues with BitsAI

⚠️ Warnings

🚦 7 Pipeline jobs failed

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

🧪 4 Tests failed

tests.ffe.test_flag_eval_evp.Test_FFE_EVP_Flagevaluation_Basic.test_ffe_evp_flagevaluation_basic[chi] 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 0x7faad3957880>, 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 0x7fab08644110>

    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[chi] 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 0x7faad9490220>, 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 0x7fab087edeb0>

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

View all 4 test failures

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

🧪 4 Tests failed

tests.ffe.test_flag_eval_evp.Test_FFE_EVP_Flagevaluation_Basic.test_ffe_evp_flagevaluation_basic[echo] 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 0x7f12dc4ad4e0>, 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 0x7f130cc69b80>

    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[echo] 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 0x7f12dc4ae520>, 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 0x7f130cc6a240>

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

View all 4 test failures

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

🧪 3 Tests failed

tests.ffe.test_flag_eval_evp.Test_FFE_EVP_Flagevaluation_Basic.test_ffe_evp_flagevaluation_basic[gin] 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 0x7f648567a2a0>, 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 0x7f64bc7a72c0>

    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[gin] 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 0x7f648567ae80>, 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 0x7f64bc7a6780>

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

View all 3 test failures

View all 7 failed jobs.

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❄️ No new flaky tests detected

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