import { describe, it, expect } from 'vitest';
import { executeCompareTechs } from '../src/tools/compare.js';
import { DATA_VERSION } from '../src/data/index.js';
describe('compare_techs tool', () => {
it('should compare two technologies', () => {
const result = executeCompareTechs({ technologies: ['nextjs', 'sveltekit'] });
expect(result.isError).toBeUndefined();
expect(result.text).toContain('## Comparison: Next.js vs SvelteKit');
expect(result.text).toContain('### Overall Scores');
expect(result.text).toContain('### Per-Dimension Winners');
expect(result.text).toContain('### Compatibility Matrix');
expect(result.text).toContain(`Data version: ${DATA_VERSION}`);
});
it('should compare three technologies', () => {
const result = executeCompareTechs({ technologies: ['nextjs', 'sveltekit', 'nuxt'] });
expect(result.isError).toBeUndefined();
expect(result.text).toContain('## Comparison: Next.js vs SvelteKit vs Nuxt');
});
it('should compare four technologies', () => {
const result = executeCompareTechs({ technologies: ['nextjs', 'sveltekit', 'nuxt', 'remix'] });
expect(result.isError).toBeUndefined();
expect(result.text).toContain('Next.js');
expect(result.text).toContain('SvelteKit');
expect(result.text).toContain('Nuxt');
expect(result.text).toContain('Remix');
});
it('should show compatibility matrix between all pairs', () => {
const result = executeCompareTechs({ technologies: ['nextjs', 'sveltekit', 'nuxt'] });
// Should have 3 pairs: nextjs↔sveltekit, nextjs↔nuxt, sveltekit↔nuxt
expect(result.text).toContain('nextjs ↔ sveltekit');
expect(result.text).toContain('nextjs ↔ nuxt');
expect(result.text).toContain('sveltekit ↔ nuxt');
});
it('should return error for unknown technology', () => {
const result = executeCompareTechs({ technologies: ['nextjs', 'unknowntech'] });
expect(result.isError).toBe(true);
expect(result.text).toContain('**Error (TECH_NOT_FOUND)**');
});
it('should return error for duplicate technologies', () => {
const result = executeCompareTechs({ technologies: ['nextjs', 'nextjs'] });
expect(result.isError).toBe(true);
expect(result.text).toContain('Duplicate');
});
it('should respect context parameter', () => {
const defaultResult = executeCompareTechs({ technologies: ['nextjs', 'sveltekit'], context: 'default' });
const enterpriseResult = executeCompareTechs({
technologies: ['nextjs', 'sveltekit'],
context: 'enterprise'
});
expect(defaultResult.text).toContain('context: default');
expect(enterpriseResult.text).toContain('context: enterprise');
});
it('should declare tie when margin is less than 3', () => {
// Find two techs with close scores in at least one dimension
// This tests the tie handling logic
const result = executeCompareTechs({ technologies: ['react', 'vue'] });
// The result should contain either a winner or "Tie"
expect(result.text).toMatch(/Winner|Tie/);
});
it('should provide verdict and recommendation', () => {
const result = executeCompareTechs({ technologies: ['nextjs', 'sveltekit'] });
expect(result.text).toContain('**Verdict**');
});
});
