peaks-similarity/src/__tests__/fastSimilarity.test.js

Peaks similarity - calculate the similarity between 2 ordered arrays of peaks

import { test, expect } from 'vitest';

import { Comparator } from '..';

test('We check to test fast similarity common second', () => {
  const comparator = new Comparator({
    common: 'second',
    widthBottom: 0.2,
    widthTop: 0.1,
  });
  comparator.setPeaks1([
    [1, 2, 3, 4, 5, 6, 7, 8, 9, 10],
    [1, 1, 1, 1, 1, 3, 3, 3, 3, 3],
  ]);

  expect(
    comparator.fastSimilarity(
      [
        [1, 1.5, 2.5, 4],
        [0.25, 0.25, 0.25, 0.25],
      ],
      0.5,
      4.5,
      true,
    ),
  ).toBe(0.5);
  expect(
    comparator.fastSimilarity(
      [
        [1, 3],
        [0.5, 0.5],
      ],
      0.5,
      4.5,
      true,
    ),
  ).toBe(1);
});

test('We check to test fast similarity', () => {
  const comparator = new Comparator({ widthBottom: 0.2, widthTop: 0.1 });
  comparator.setPeaks1([
    [1, 2, 3, 4, 5, 6, 7, 8, 9, 10],
    [1, 1, 1, 1, 1, 3, 3, 3, 3, 3],
  ]);

  expect(
    comparator.fastSimilarity(
      [
        [1, 2],
        [0.5, 0.5],
      ],
      0.5,
      2.5,
    ),
  ).toBe(1);
  expect(
    comparator.fastSimilarity(
      [
        [0, 1, 2],
        [0.5, 0.25, 0.25],
      ],
      -0.5,
      2.5,
    ),
  ).toBe(0.5);
  expect(
    comparator.fastSimilarity(
      [
        [1, 4],
        [0.5, 0.5],
      ],
      0.5,
      4.5,
    ),
  ).toBe(0.5);
  expect(
    comparator.fastSimilarity(
      [
        [1, 1.5, 2.5, 3],
        [0.25, 0.25, 0.25, 0.25],
      ],
      0.5,
      4.5,
    ),
  ).toBe(0.5);
});