[ruby] Enable Test_Debugger_InProduct_Enablement_Dynamic_Instrumentation

[p-datadog]

Motivation

dd-trace-rb v2.36.0 (DataDog/dd-trace-rb#5525) implements implicit DI enablement for Ruby: an APM_TRACING RC payload with dynamic_instrumentation_enabled: true starts the always-built DI component, false stops it, and null preserves current state.

This system test verifies the full round trip — RC delivery to tracer, tracer-side start!/stop!, and probe install/remove behavior — that already passes for Java, Python, .NET, and Node.js. Ruby has been opted out via missing_feature and should now run.

Changes

manifests/ruby.yml — change Test_Debugger_InProduct_Enablement_Dynamic_Instrumentation from missing_feature to v2.36.0-dev on the three Rails-based weblogs that have a working debugger_controller.rb fixture (rails72, rails80, uds-rails):

tests/debugger/test_debugger_inproduct_enablement.py::Test_Debugger_InProduct_Enablement_Dynamic_Instrumentation:
  - weblog_declaration:
      "*": missing_feature
      rails72: v2.36.0-dev
      rails80: v2.36.0-dev
      uds-rails: v2.36.0-dev

The three sibling tests in the same file stay missing_feature — they are out of scope for the Ruby work:

• Test_Debugger_InProduct_Enablement_Code_Origin — Code Origin is not implemented in Ruby DI.
• Test_Debugger_InProduct_Enablement_Code_Origin_Default_On — same; already irrelevant per dotnet rollout comment.
• Test_Debugger_InProduct_Enablement_Exception_Replay — Exception Replay is not implemented in Ruby DI.

Verification

The probe template targets line 20 of the language's debugger controller. In Ruby that resolves to utils/build/docker/ruby/shared/rails/app/controllers/debugger_controller.rb, which already has def log_probe / render inline: 'Log probe' # This needs to be line 20.

Tracer-side coverage of the same flow lives in dd-trace-rb/spec/datadog/di/integration/implicit_enablement_spec.rb — those tests pass on the enablement branch.

Notes

The -dev suffix tracks the unreleased dd-trace-rb #5525; other tests in this manifest already use -dev versions, so no version bump is required before merge.

The reviewer checklist's "Anything but tests/ or manifests/ is modified" item is satisfied — only manifests/ruby.yml changes.

[github-actions]

CODEOWNERS have been resolved as:

manifests/ruby.yml                                                      @DataDog/ruby-guild @DataDog/asm-ruby

[datadog-official]

 

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⚠️ Warnings

🚦 4 Pipeline jobs failed

Testing the test | System Tests (ruby, dev) / End-to-end #1 / rails72 1     

🧪 1 Test failed

tests.debugger.test_debugger_inproduct_enablement.Test_Debugger_InProduct_Enablement_Dynamic_Instrumentation.test_inproduct_enablement_di[rails72] from system_tests_suite   (Fix with Cursor)

AssertionError: Expected probes to be emitting after enabling dynamic instrumentation
assert False
 +  where False = <tests.debugger.test_debugger_inproduct_enablement.Test_Debugger_InProduct_Enablement_Dynamic_Instrumentation object at 0x7fe649e49610>.di_explicit_enabled

self = <tests.debugger.test_debugger_inproduct_enablement.Test_Debugger_InProduct_Enablement_Dynamic_Instrumentation object at 0x7fe649e49610>

    def test_inproduct_enablement_di(self):
        self.assert_rc_state_not_error()
        self.assert_all_weblog_responses_ok()
    
...

Testing the test | System Tests (ruby, dev) / End-to-end #1 / rails80 1     

🧪 1 Test failed

tests.debugger.test_debugger_inproduct_enablement.Test_Debugger_InProduct_Enablement_Dynamic_Instrumentation.test_inproduct_enablement_di[rails80] from system_tests_suite   (Fix with Cursor)

AssertionError: Expected probes to be emitting after enabling dynamic instrumentation
assert False
 +  where False = <tests.debugger.test_debugger_inproduct_enablement.Test_Debugger_InProduct_Enablement_Dynamic_Instrumentation object at 0x7f9dacc1c770>.di_explicit_enabled

self = <tests.debugger.test_debugger_inproduct_enablement.Test_Debugger_InProduct_Enablement_Dynamic_Instrumentation object at 0x7f9dacc1c770>

    def test_inproduct_enablement_di(self):
        self.assert_rc_state_not_error()
        self.assert_all_weblog_responses_ok()
    
...

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

🧪 1 Test failed

tests.debugger.test_debugger_inproduct_enablement.Test_Debugger_InProduct_Enablement_Dynamic_Instrumentation.test_inproduct_enablement_di[uds-rails] from system_tests_suite   (Fix with Cursor)

AssertionError: Expected probes to be emitting after enabling dynamic instrumentation
assert False
 +  where False = <tests.debugger.test_debugger_inproduct_enablement.Test_Debugger_InProduct_Enablement_Dynamic_Instrumentation object at 0x7f38940fb950>.di_explicit_enabled

self = <tests.debugger.test_debugger_inproduct_enablement.Test_Debugger_InProduct_Enablement_Dynamic_Instrumentation object at 0x7f38940fb950>

    def test_inproduct_enablement_di(self):
        self.assert_rc_state_not_error()
        self.assert_all_weblog_responses_ok()
    
...

View all 4 failed jobs.

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❄️ No new flaky tests detected

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