Integration tests on DaprClient responses

[seherv]

Description

Tests the gRPC channel created by DaprClient directly, instead of asserting on the log outputs of the examples like in the PR that removes Mechanical Markdown (#977).
The old log assertions are kept as "documentation tests".

Issue reference

We strive to have all PR being opened based on an issue, where the problem or feature have been discussed prior to implementation.

Please reference the issue this PR will close: #972

Checklist

Please make sure you've completed the relevant tasks for this PR, out of the following list:

• Code compiles correctly
• Created/updated tests
• Extended the documentation

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 80.53%. Comparing base (bffb749) to head (112cf55).
⚠️ Report is 102 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #981      +/-   ##
==========================================
- Coverage   86.63%   80.53%   -6.10%     
==========================================
  Files          84      136      +52     
  Lines        4473    12678    +8205     
==========================================
+ Hits         3875    10210    +6335     
- Misses        598     2468    +1870     

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[Copilot]

Pull request overview

This PR migrates example validation away from mechanical-markdown by introducing two pytest suites: (1) stdout-based “documentation” tests that run the examples and assert expected output, and (2) SDK-based integration tests that assert directly on DaprClient responses.

Changes:

• Replace mechanical-markdown validation with pytest in tox -e examples (stdout assertions).
• Add tox -e integration suite with a Dapr sidecar test harness and SDK-level assertions.
• Update CI workflow and contributor docs to reflect the new testing approach.

Reviewed changes

Copilot reviewed 49 out of 49 changed files in this pull request and generated 9 comments.

Show a summary per file

File	Description
tox.ini	Switch examples validation to pytest; add integration env
.github/workflows/validate_examples.yaml	Run both examples + integration in CI
pyproject.toml	Add pytest marker registration
examples/validate.sh	Remove mechanical-markdown entrypoint
README.md	Update developer instructions (examples/integration)
AGENTS.md	Update guidance for example validation workflow
examples/AGENTS.md	Update example validation documentation
CLAUDE.md	Add repo coding/style guidance
examples/conversation/real_llm_providers_example.py	Update output text
tests/clients/test_conversation_helpers.py	Docstring wording tweak
tests/examples/conftest.py	Add DaprRunner helper + example_dir fixture
tests/examples/test_configuration.py	Stdout-based example test
tests/examples/test_conversation.py	Stdout-based example test
tests/examples/test_crypto.py	Stdout-based example test
tests/examples/test_demo_actor.py	Stdout-based example test
tests/examples/test_distributed_lock.py	Stdout-based example test
tests/examples/test_error_handling.py	Stdout-based example test
tests/examples/test_grpc_proxying.py	Stdout-based example test
tests/examples/test_invoke_binding.py	Stdout-based example test
tests/examples/test_invoke_custom_data.py	Stdout-based example test
tests/examples/test_invoke_http.py	Stdout-based example test
tests/examples/test_invoke_simple.py	Stdout-based example test
tests/examples/test_jobs.py	Stdout-based example test
tests/examples/test_langgraph_checkpointer.py	Stdout-based example test
tests/examples/test_metadata.py	Stdout-based example test
tests/examples/test_pubsub_simple.py	Stdout-based example test
tests/examples/test_pubsub_streaming.py	Stdout-based example test
tests/examples/test_pubsub_streaming_async.py	Stdout-based example test
tests/examples/test_secret_store.py	Stdout-based example test
tests/examples/test_state_store.py	Stdout-based example test
tests/examples/test_state_store_query.py	Stdout-based example test
tests/examples/test_w3c_tracing.py	Stdout-based example test
tests/examples/test_workflow.py	Stdout-based example test
tests/integration/conftest.py	Add DaprTestEnvironment harness for SDK tests
tests/integration/secrets.json	Local secret store test data
tests/integration/test_configuration.py	SDK-based configuration tests
tests/integration/test_distributed_lock.py	SDK-based lock tests
tests/integration/test_invoke.py	SDK-based invocation tests
tests/integration/test_metadata.py	SDK-based metadata tests
tests/integration/test_pubsub.py	SDK-based pub/sub delivery tests
tests/integration/test_secret_store.py	SDK-based secret store tests
tests/integration/test_state_store.py	SDK-based state store tests
tests/integration/apps/invoke_receiver.py	gRPC app for invoke tests
tests/integration/apps/pubsub_subscriber.py	Subscriber app persisting received events
tests/integration/components/configurationstore.yaml	Redis configuration component
tests/integration/components/localsecretstore.yaml	Local-file secret store component
tests/integration/components/lockstore.yaml	Redis lock component
tests/integration/components/pubsub.yaml	Redis pubsub component
tests/integration/components/statestore.yaml	Redis state component

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Copilot reviewed 48 out of 48 changed files in this pull request and generated 2 comments.

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Copilot reviewed 48 out of 48 changed files in this pull request and generated 8 comments.

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Copilot reviewed 48 out of 48 changed files in this pull request and generated 3 comments.

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Copilot reviewed 49 out of 49 changed files in this pull request and generated 3 comments.

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