Add first tests module and file indexing system

[dachengx]

Trying to solve #22

What does the code in this PR do / what does it improve?

Add unittest for GaussianModel, TemplateSource, Parameters, CustomAncillaryLikelihood, and BlueiceExtendedModel.

The usage of get_file_path:

from alea.utils import get_file_path
get_file_path('unbinned_wimp_statistical_model.yaml')

get_file_path('unbinned_wimp_running.yaml', ['/home/***/alea/alea/runner_configs'])

output:

'/home/***/alea/alea/model_configs/unbinned_wimp_statistical_model.yaml'

INFO:root:Load unbinned_wimp_running.yaml successfully from /home/***/alea/alea/runner_configs/unbinned_wimp_running.yaml
'/home/***/alea/alea/runner_configs/unbinned_wimp_running.yaml'

Can you briefly describe how it works?

Can you give a minimal working example (or illustrate with a figure)?

What are the potential drawbacks of the codes?

Please include the following if applicable:

• Update the docstring(s)
• Update the documentation
• Tests to check the (new) code is working as desired.
• Does it solve one of the open issues on github?

Notes on testing

• Until the automated tests pass, please mark the PR as a draft.

All italic comments can be removed from this template.

[github-actions]

Pull Request Test Coverage Report for Build 5660974185

• 60 of 78 (76.92%) changed or added relevant lines in 6 files are covered.
• 1 unchanged line in 1 file lost coverage.
• Overall coverage increased (+17.6%) to 17.629%

---

Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
alea/model.py	7	8	87.5%
alea/models/blueice_extended_model.py	18	20	90.0%
alea/template_source.py	2	9	22.22%
alea/utils.py	28	36	77.78%

Files with Coverage Reduction	New Missed Lines	%
alea/template_source.py	1	7.17%

Totals
Change from base Build 5655453593:	17.6%
Covered Lines:	513
Relevant Lines:	2910

---

💛 - Coveralls

[hammannr]

Very nice first unittests for alea, thanks a lot @dachengx ! 😊 There are a few things I'm not entirely sure about when it comes to the other changes, maybe we can discuss them here.

[dachengx]

Finally, the review dog is happy. Happy dog!

[kdund]

Thanks, @dachengx do you have any simple demonstration of the resource location script?

[dachengx]

The usage of get_file_path is updated in the PR description. @kdund

[kdund]

Thanks, @dachengx it now looks v nice to me
lets pytest till we drop!

[coveralls]

Pull Request Test Coverage Report for Build 5660974185

Warning: This coverage report may be inaccurate.

This pull request's base commit is no longer the HEAD commit of its target branch. This means it includes changes from outside the original pull request, including, potentially, unrelated coverage changes.

• For more information on this, see Tracking coverage changes with pull request builds.
• To avoid this issue with future PRs, see these Recommended CI Configurations.
• For a quick fix, rebase this PR at GitHub. Your next report should be accurate.

Details

• 53 of 70 (75.71%) changed or added relevant lines in 6 files are covered.
• 4 unchanged lines in 2 files lost coverage.
• Overall coverage increased (+17.6%) to 17.629%

---

Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
alea/model.py	7	8	87.5%
alea/models/blueice_extended_model.py	13	14	92.86%
alea/template_source.py	2	9	22.22%
alea/utils.py	27	35	77.14%

Files with Coverage Reduction	New Missed Lines	%
alea/template_source.py	1	7.17%
alea/models/blueice_extended_model.py	3	92.52%

Totals
Change from base Build 5655453593:	17.6%
Covered Lines:	513
Relevant Lines:	2910

---

💛 - Coveralls