**SUMMARY**

Test names must be unique per scope otherwise the second test overrides the first one with the same name.

**ISSUE TYPE**
- Bugfix Pull Request

**COMPONENT NAME**
ansible/test/units/parsing/test_mod_args.py
ansible/test/units/module_utils/facts/test_collectors.py
ansible/test/units/module_utils/common/validation/test_check_required_if.py
ansible/test/units/module_utils/basic/test_deprecate_warn.py

**ADDITIONAL INFORMATION**

For example if you had a test file that does:

```
def test_a():
    pass

def test_a():
    pass
```

Then only the second `test_a` will be ran. More details [here](https://codereview.doctor/features/python/best-practice/avoid-duplicate-unit-test-names).

These are the tests that are overriding previously defined tests due to this problem:

https://github.com/ansible/ansible/blob/de9a3bda2cfaace7e3d25b0c4774eefdd9514687/test/units/parsing/test_mod_args.py#L121
https://github.com/ansible/ansible/blob/de9a3bda2cfaace7e3d25b0c4774eefdd9514687/test/units/module_utils/facts/test_collectors.py#L397
https://github.com/ansible/ansible/blob/de9a3bda2cfaace7e3d25b0c4774eefdd9514687/test/units/module_utils/facts/test_collectors.py#L413
https://github.com/ansible/ansible/blob/de9a3bda2cfaace7e3d25b0c4774eefdd9514687/test/units/module_utils/common/validation/test_check_required_if.py#L56
https://github.com/ansible/ansible/blob/de9a3bda2cfaace7e3d25b0c4774eefdd9514687/test/units/module_utils/basic/test_deprecate_warn.py#L74

I found this issue automatically, see other issues [here](https://codereview.doctor/ansible/ansible)



with pytest.raises(SystemExit):
        am.exit_json(deprecations='Simple deprecation warning')
    out, err = capfd.readouterr()
    output = json.loads(out)
    assert ('warnings' not in output or output['warnings'] == [])
    assert output['deprecations'] == [
        {u'msg': u'Simple deprecation warning', u'version': None, u'collection_name': None},
    ]
@pytest.mark.parametrize('stdin', [{}], indirect=['stdin'])
def test_deprecate_without_list(am, capfd):
    with pytest.raises(AssertionError) as ctx:
        am.deprecate('Simple deprecation warning', date='', version='')
    assert ctx.value.args[0] == "implementation error -- version and date must not both be set"