koa-lite/test/request/acceptsLanguages.js

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'use strict';
const assert = require('assert');
const context = require('../helpers/context');
describe('ctx.acceptsLanguages(langs)', () => {
describe('with no arguments', () => {
describe('when Accept-Language is populated', () => {
it('should return accepted types', () => {
const ctx = context();
ctx.req.headers['accept-language'] = 'en;q=0.8, es, pt';
assert.deepEqual(ctx.acceptsLanguages(), ['es', 'pt', 'en']);
});
});
});
describe('with multiple arguments', () => {
describe('when Accept-Language is populated', () => {
describe('if any types types match', () => {
it('should return the best fit', () => {
const ctx = context();
ctx.req.headers['accept-language'] = 'en;q=0.8, es, pt';
assert.equal(ctx.acceptsLanguages('es', 'en'), 'es');
});
});
describe('if no types match', () => {
it('should return false', () => {
const ctx = context();
ctx.req.headers['accept-language'] = 'en;q=0.8, es, pt';
assert.equal(ctx.acceptsLanguages('fr', 'au'), false);
});
});
});
describe('when Accept-Language is not populated', () => {
it('should return the first type', () => {
const ctx = context();
assert.equal(ctx.acceptsLanguages('es', 'en'), 'es');
});
});
});
describe('with an array', () => {
it('should return the best fit', () => {
const ctx = context();
ctx.req.headers['accept-language'] = 'en;q=0.8, es, pt';
assert.equal(ctx.acceptsLanguages(['es', 'en']), 'es');
});
});
});