Composite evaluators and adding more e2e tests

[ninghu]

Description

Please add an informative description that covers that changes made by the pull request and link all relevant issues.

All Promptflow Contribution checklist:

• The pull request does not introduce [breaking changes].
• CHANGELOG is updated for new features, bug fixes or other significant changes.
• I have read the contribution guidelines.
• Create an issue and link to the pull request to get dedicated review from promptflow team. Learn more: suggested workflow.

General Guidelines and Best Practices

• Title of the pull request is clear and informative.
• There are a small number of commits, each of which have an informative message. This means that previously merged commits do not appear in the history of the PR. For more information on cleaning up the commits in your PR, see this page.

Testing Guidelines

• Pull request includes test coverage for the included changes.

[github-actions]

promptflow-evals test result

 12 files  ±  0  12 suites  ±0   37m 10s ⏱️ + 35m 27s
 12 tests  -  18   8 ✅  -  22   4 💤 + 4  0 ❌ ±0 
144 runs   - 216  96 ✅  - 264  48 💤 +48  0 ❌ ±0 

Results for commit b541d80. ± Comparison against base commit 5a4eb58.

This pull request removes 30 and adds 12 tests. Note that renamed tests count towards both.

tests.evals.unittests.test_chat_evaluator.TestChatEvaluator ‑ test_conversation_validation_invalid_citations
tests.evals.unittests.test_chat_evaluator.TestChatEvaluator ‑ test_conversation_validation_missing_role
tests.evals.unittests.test_chat_evaluator.TestChatEvaluator ‑ test_conversation_validation_normal
tests.evals.unittests.test_chat_evaluator.TestChatEvaluator ‑ test_conversation_validation_question_answer_not_paired
tests.evals.unittests.test_chat_evaluator.TestChatEvaluator ‑ test_per_turn_results_aggregation
tests.evals.unittests.test_evaluate.TestEvaluate ‑ test_evaluate_evaluators_not_a_dict
tests.evals.unittests.test_evaluate.TestEvaluate ‑ test_evaluate_invalid_data
tests.evals.unittests.test_evaluate.TestEvaluate ‑ test_evaluate_invalid_jsonl_data
tests.evals.unittests.test_evaluate.TestEvaluate ‑ test_evaluate_missing_data
tests.evals.unittests.test_evaluate.TestEvaluate ‑ test_evaluate_missing_required_inputs
…

tests.evals.e2etests.test_builtin_evaluators.TestBuiltInEvaluators ‑ test_composite_evaluator_chat[False-False]
tests.evals.e2etests.test_builtin_evaluators.TestBuiltInEvaluators ‑ test_composite_evaluator_chat[False-True]
tests.evals.e2etests.test_builtin_evaluators.TestBuiltInEvaluators ‑ test_composite_evaluator_chat[True-False]
tests.evals.e2etests.test_builtin_evaluators.TestBuiltInEvaluators ‑ test_composite_evaluator_chat[True-True]
tests.evals.e2etests.test_builtin_evaluators.TestBuiltInEvaluators ‑ test_composite_evaluator_content_safety[False]
tests.evals.e2etests.test_builtin_evaluators.TestBuiltInEvaluators ‑ test_composite_evaluator_content_safety[True]
tests.evals.e2etests.test_builtin_evaluators.TestBuiltInEvaluators ‑ test_composite_evaluator_qa[False]
tests.evals.e2etests.test_builtin_evaluators.TestBuiltInEvaluators ‑ test_composite_evaluator_qa[True]
tests.evals.e2etests.test_builtin_evaluators.TestBuiltInEvaluators ‑ test_individual_evaluator_prompt_based
tests.evals.e2etests.test_builtin_evaluators.TestBuiltInEvaluators ‑ test_individual_evaluator_service_based
…

♻️ This comment has been updated with latest results.

[github-actions]

SDK CLI Test Result users/ninhu/composite_evaluators

    4 files      4 suites   1h 4m 27s ⏱️
  690 tests   663 ✅  27 💤 0 ❌
2 760 runs  2 652 ✅ 108 💤 0 ❌

Results for commit b541d80.

♻️ This comment has been updated with latest results.