fix: fix implementation of #read when size=0

[jeswr]

No items should be pushed to the buffer when size == 0.

Summary by CodeRabbit

• Bug Fixes

  • Adjusted loop control structure to improve data processing in edge cases, potentially enhancing the handling of zero or small sizes.

• Refactor

  • Modified loop termination conditions for better iteration behavior when reading from an iterable.

[coderabbitai]

Walkthrough

The changes involve modifying the loop control structure in the N3Store.js file. The loop condition was altered from size-- > 0 to --size >= 0, affecting how the loop iterates over the size variable. This change impacts the termination condition of the loops that read from an iterable, potentially altering the number of iterations based on the initial value of size.

Changes

Files	Change Summary
src/N3Store.js	Modified loop control structure from size-- > 0 to --size >= 0, affecting loop termination.

Poem

In the land of code where bunnies hop,
A loop was changed, and it won't stop!
From size to zero, it now takes flight,
Processing data with all its might.
Hooray for the tweaks, let’s give a cheer,
For every small change brings us near! 🐇✨

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Recent review details

Configuration used: CodeRabbit UI
Review profile: CHILL

Commits

Files that changed from the base of the PR and between 37be908 and 2045a71.

Files selected for processing (1)

• src/N3Store.js (2 hunks)

Files skipped from review as they are similar to previous changes (1)

• src/N3Store.js

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[jeswr]

@coderabbitai generate unit testing code for this file

[coderabbitai]

Tip

For best results, initiate chat on the files or code changes.

@jeswr: Here are some unit tests for the #read function in src/N3Store.js to verify its behavior when size == 0:

// Assuming the use of Mocha testing framework and Chai for assertions

const { expect } = require('chai');
const N3Store = require('../src/N3Store');

describe('N3Store', () => {
  describe('#read()', () => {
    it('should not push any items when size is 0', () => {
      const store = new N3Store();
      const data = [
        { subject: 's1', predicate: 'p1', object: 'o1' },
        { subject: 's2', predicate: 'p2', object: 'o2' },
      ];

      const iterator = data[Symbol.iterator]();
      const result = store.read(iterator, 0);

      expect(result).to.be.null;
      expect(store.size).to.equal(0);
    });

    it('should push items when size is greater than 0', () => {
      const store = new N3Store();
      const data = [
        { subject: 's1', predicate: 'p1', object: 'o1' },
        { subject: 's2', predicate: 'p2', object: 'o2' },
      ];

      const iterator = data[Symbol.iterator]();
      const result = store.read(iterator, 2);

      expect(result).to.not.be.null;
      expect(store.size).to.equal(2);
    });
  });
});

These tests verify that when size is 0, the read function does not push any items into the store, and when size is greater than 0, it behaves as expected.

Feel free to adjust the test cases according to the specific implementation details of N3Store and the testing framework used in your project.

[github-actions]

🎉 This PR is included in version 1.21.3 🎉

The release is available on:

• npm package (@latest dist-tag)
• GitHub release

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