cloc-graph/dist/__tests__/utils/sampling.test.js

Track lines of code over time by language with visualization

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
const sampling_1 = require("../../utils/sampling");
describe('Sampling Utils', () => {
    describe('smartSampleCommits', () => {
        it('should sample commits at regular intervals', () => {
            // Mock array of 100 commits
            const commits = Array.from({ length: 100 }, (_, i) => ({
                hash: `hash${i}`,
                date: new Date(2025, 0, i + 1).toISOString()
            }));
            // Sample 10 commits
            const sampled = (0, sampling_1.smartSampleCommits)(commits, 10);
            expect(sampled).toHaveLength(10);
            // Should take evenly spaced samples
            expect(sampled[0]).toEqual(commits[0]);
            expect(sampled[9]).toEqual(commits[90]);
        });
        it('should handle when maxSamples is greater than array length', () => {
            const commits = Array.from({ length: 5 }, (_, i) => ({ hash: `hash${i}` }));
            const sampled = (0, sampling_1.smartSampleCommits)(commits, 10);
            expect(sampled).toHaveLength(5);
            expect(sampled).toEqual(commits);
        });
        it('should handle empty commits array', () => {
            const commits = [];
            const sampled = (0, sampling_1.smartSampleCommits)(commits, 10);
            expect(sampled).toHaveLength(0);
            expect(sampled).toEqual([]);
        });
    });
});