**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)



m = ModuleArgsParser(dict(copy='src=a dest=b'))
        mod, args, to = m.parse()
        self._debug(mod, args, to)
        assert mod, 'copy'
        assert args, dict(src='a', dest='b')
        assert to is Sentinel
    def test_complex_args(self):
        m = ModuleArgsParser(dict(copy=dict(src='a', dest='b')))
        mod, args, to = m.parse()
        self._debug(mod, args, to)
        assert mod, 'copy'
        assert args, dict(src='a', dest='b')
        assert to is Sentinel
    def test_action_with_complex(self):
        m = ModuleArgsParser(dict(action=dict(module='copy', src='a', dest='b')))
        mod, args, to = m.parse()
        self._debug(mod, args, to)
        assert mod == 'copy'
        assert args == dict(src='a', dest='b')
        assert to is Sentinel
    def test_action_with_complex_and_complex_args(self):
        m = ModuleArgsParser(dict(action=dict(module='copy', args=dict(src='a', dest='b'))))
        mod, args, to = m.parse()
        self._debug(mod, args, to)
        assert mod == 'copy'
        assert args == dict(src='a', dest='b')
        assert to is Sentinel
    def test_local_action_string(self):