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Fix equivalent atoms and add tests #219

Merged
merged 4 commits into from
Jul 18, 2024
Merged

Fix equivalent atoms and add tests #219

merged 4 commits into from
Jul 18, 2024

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jan-janssen
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@jan-janssen jan-janssen commented Jul 17, 2024

Summary by CodeRabbit

  • Bug Fixes

    • Improved the accuracy of symmetry operations in the determination of equivalent atoms within crystal structures.
  • Tests

    • Introduced new test cases to ensure the correctness of equivalent atom determination and conversion functions between ASE and Phonopy representations of crystal structures.

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coderabbitai bot commented Jul 17, 2024

Walkthrough

These changes introduce modifications to the get_equivalent_atoms function within the structuretoolkit.analyse.phonopy module, enhancing the accuracy of symmetry operations by changing the input format. Additionally, new test cases have been added in tests/test_analyse_phonopy.py to validate the functionality of get_equivalent_atoms and conversion functions between ASE and Phonopy representations of crystal structures.

Changes

File Change Summary
structuretoolkit/analyse/phonopy.py Modified get_equivalent_atoms to use unitcell.totuple() as input for symmetry calculations.
tests/test_analyse_phonopy.py Added TestEquivalentAtoms and TestPhonopyAtoms test cases to validate get_equivalent_atoms and conversion functions between ASE and Phonopy.

Poem

In crystal symmetries we trust,
Functions refined with minimal fuss.
To test and validate, we strive,
Ensuring our atoms come alive.
With tuples and cells, all in a dance,
Precision in science, we advance.
🐰✨


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Actionable comments posted: 2

Review details

Configuration used: CodeRabbit UI
Review profile: CHILL

Commits

Files that changed from the base of the PR and between e699d2b and 15c5e53.

Files selected for processing (2)
  • structuretoolkit/analyse/phonopy.py (1 hunks)
  • tests/test_analyse_phonopy.py (1 hunks)
Additional comments not posted (1)
structuretoolkit/analyse/phonopy.py (1)

44-46: Approve changes but verify impact on other parts of the codebase.

The modification to use unitcell.totuple() in the spg.get_symmetry call is approved as it likely enhances the accuracy of symmetry calculations.

However, ensure that this change does not affect other parts of the codebase where get_equivalent_atoms might be used.

Comment on lines 1 to 11
import unittest
from ase.build import bulk
from structuretoolkit.analyse.phonopy import get_equivalent_atoms


class TestEquivalentAtoms(unittest.TestCase):
def test_get_equivalent_atoms(self):
equivalent_atoms = get_equivalent_atoms(
structure=bulk("Al", cubic=True), symprec=1e-5, angle_tolerance=-1.0
)
self.assertTrue(all(equivalent_atoms == [0, 0, 0, 0]))
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Add comprehensive tests and verify expected results.

The test case only checks one scenario with hard-coded expected results. Consider adding more test cases to cover different scenarios and edge cases, such as non-cubic structures or invalid inputs.

Additionally, verify that the expected results [0, 0, 0, 0] are correct for the given structure and parameters.

Would you like me to help create additional test cases or verify the expected results?

Comment on lines +44 to +46
ops = spg.get_symmetry(
cell=unitcell.totuple(), symprec=symprec, angle_tolerance=angle_tolerance
)
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Consider adding documentation for the use of totuple().

Adding a comment or updating the documentation to explain why totuple() is used instead of the direct unitcell object could help maintain clarity and assist future maintainers or users of the code.

+    # Convert unitcell to tuple to ensure compatibility with spglib API requirements
     ops = spg.get_symmetry(
         cell=unitcell.totuple(), symprec=symprec, angle_tolerance=angle_tolerance
     )
Committable suggestion

‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.

Suggested change
ops = spg.get_symmetry(
cell=unitcell.totuple(), symprec=symprec, angle_tolerance=angle_tolerance
)
# Convert unitcell to tuple to ensure compatibility with spglib API requirements
ops = spg.get_symmetry(
cell=unitcell.totuple(), symprec=symprec, angle_tolerance=angle_tolerance
)

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Actionable comments posted: 1

Outside diff range, codebase verification and nitpick comments (1)
tests/test_analyse_phonopy.py (1)

8-13: Conditional import of spglib is valid but can be optimized.

The import of spglib is used to check its availability which is a valid use case. However, using importlib.util.find_spec might be a cleaner approach to check for the availability of a package without importing it.

- import spglib
- spglib_not_available = False
+ from importlib import util
+ spglib_not_available = util.find_spec("spglib") is None
Tools
Ruff

9-9: spglib imported but unused; consider using importlib.util.find_spec to test for availability

(F401)

Review details

Configuration used: CodeRabbit UI
Review profile: CHILL

Commits

Files that changed from the base of the PR and between 15c5e53 and 3d6d312.

Files selected for processing (1)
  • tests/test_analyse_phonopy.py (1 hunks)
Additional context used
Ruff
tests/test_analyse_phonopy.py

9-9: spglib imported but unused; consider using importlib.util.find_spec to test for availability

(F401)

Additional comments not posted (2)
tests/test_analyse_phonopy.py (2)

16-18: Proper use of the skipIf decorator.

The decorator is correctly applied to skip tests conditionally based on the availability of spglib. This is a good practice to ensure tests do not fail due to missing optional dependencies.


26-31: Good initial tests for conversion, but consider more scenarios.

The tests ensure that the basic properties of the structure remain unchanged after conversion. To enhance the robustness, consider adding tests for different types of structures and checking for edge cases.

Comment on lines +20 to +24
def test_get_equivalent_atoms(self):
equivalent_atoms = get_equivalent_atoms(
structure=bulk("Al", cubic=True), symprec=1e-5, angle_tolerance=-1.0
)
self.assertTrue(all(equivalent_atoms == [0, 0, 0, 0]))
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Expand test coverage for get_equivalent_atoms.

The current test checks a specific scenario with a hard-coded expected result. Consider adding more test cases to cover different scenarios and edge cases, such as non-cubic structures or invalid inputs.

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Caution

Inline review comments failed to post

Actionable comments posted: 1

Outside diff range, codebase verification and nitpick comments (1)
tests/test_analyse_phonopy.py (1)

8-13: Conditional import of spglib is valid but can be optimized.

The import of spglib is used to check its availability which is a valid use case. However, using importlib.util.find_spec might be a cleaner approach to check for the availability of a package without importing it.

- import spglib
- spglib_not_available = False
+ from importlib import util
+ spglib_not_available = util.find_spec("spglib") is None
Tools
Ruff

9-9: spglib imported but unused; consider using importlib.util.find_spec to test for availability

(F401)

Review details

Configuration used: CodeRabbit UI
Review profile: CHILL

Commits

Files that changed from the base of the PR and between 15c5e53 and 3d6d312.

Files selected for processing (1)
  • tests/test_analyse_phonopy.py (1 hunks)
Additional context used
Ruff
tests/test_analyse_phonopy.py

9-9: spglib imported but unused; consider using importlib.util.find_spec to test for availability

(F401)

Additional comments not posted (2)
tests/test_analyse_phonopy.py (2)

16-18: Proper use of the skipIf decorator.

The decorator is correctly applied to skip tests conditionally based on the availability of spglib. This is a good practice to ensure tests do not fail due to missing optional dependencies.


26-31: Good initial tests for conversion, but consider more scenarios.

The tests ensure that the basic properties of the structure remain unchanged after conversion. To enhance the robustness, consider adding tests for different types of structures and checking for edge cases.

Comments failed to post (1)
tests/test_analyse_phonopy.py

20-24: Expand test coverage for get_equivalent_atoms.

The current test checks a specific scenario with a hard-coded expected result. Consider adding more test cases to cover different scenarios and edge cases, such as non-cubic structures or invalid inputs.

@jan-janssen jan-janssen merged commit 2f52d82 into main Jul 18, 2024
13 of 14 checks passed
@jan-janssen jan-janssen deleted the equivalent-atoms branch July 18, 2024 06:23
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2 participants