Simple wandb_sweep_test.py and wandb_agent_test.py (skipped agent test for now)

[coveralls]

Pull Request Test Coverage Report for Build 87f42100-d070-47ff-b7a8-20fe091f6670

• 12 of 21 (57.14%) changed or added relevant lines in 4 files are covered.
• 108 unchanged lines in 23 files lost coverage.
• Overall coverage increased (+4.1%) to 65.391%

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Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
tests/conftest.py	1	2	50.0%
tests/utils/mock_server.py	2	4	50.0%
tests/wandb_agent_test.py	3	9	33.33%
<!--	Total:	12	21	57.14%	-->

Files with Coverage Reduction	New Missed Lines	%
wandb/apis/internal_runqueue.py	1	22.42%
wandb/filesync/dir_watcher.py	1	81.62%
wandb/internal/internal_api.py	1	61.36%
wandb/internal/meta.py	1	70.8%
wandb/internal/run.py	1	61.54%
wandb/util.py	1	64.75%
tests/test_datastore.py	2	97.83%
tests/test_util.py	2	97.44%
tests/utils/notebook_client.py	2	72.22%
wandb/cli/cli.py	2	62.5%
<!--	Total:	108		-->

Totals
Change from base Build 12451498-f72a-4d3d-8c8d-ab1c8cb74527:	4.1%
Covered Lines:	13959
Relevant Lines:	21347

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💛 - Coveralls