test: Unfinished span behavior

[szokeasaurusrex]

Add a test which demonstrates how unfinished spans are handled. We will use this to compare behavior with potel-base

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[codecov]

❌ 13 Tests Failed:

Tests completed	Failed	Passed	Skipped
24216	13	24203	5804

View the top 3 failed test(s) by shortest run time

tests.tracing.test_unfinished_spans::test_unfinished_spans_sdk_3

Stack Traces | 0.076s run time

tests/tracing/test_unfinished_spans.py:51: in test_unfinished_spans_sdk_3
    assert {"span0"} == spans_by_name.keys()
E   AssertionError: assert {'span0'} == dict_keys(['span0', 'span2'])
E     +{'span0'}
E     -dict_keys(['span0', 'span2'])
E     Full diff:
E     - dict_keys(['span0', 'span2'])
E     + {'span0'}

tests.tracing.test_unfinished_spans::test_unfinished_spans_sdk_3

Stack Traces | 0.076s run time

tests/tracing/test_unfinished_spans.py:51: in test_unfinished_spans_sdk_3
    assert {"span0"} == spans_by_name.keys()
E   AssertionError: assert {'span0'} == dict_keys(['span0', 'span2'])
E     +{'span0'}
E     -dict_keys(['span0', 'span2'])
E     Full diff:
E     - dict_keys(['span0', 'span2'])
E     + {'span0'}

tests.tracing.test_unfinished_spans::test_unfinished_spans_sdk_3

Stack Traces | 0.079s run time

tests/tracing/test_unfinished_spans.py:51: in test_unfinished_spans_sdk_3
    assert {"span0"} == spans_by_name.keys()
E   AssertionError: assert {'span0'} == dict_keys(['span0', 'span2'])
E     +{'span0'}
E     -dict_keys(['span0', 'span2'])
E     Full diff:
E     - dict_keys(['span0', 'span2'])
E     + {'span0'}

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