var normalizeHeaderName = require('../../../lib/helpers/normalizeHeaderName'); describe('helpers::normalizeHeaderName', function () { it('should normalize matching header name', function () { var headers = { 'conTenT-Type': 'foo/bar', }; normalizeHeaderName(headers, 'Content-Type'); expect(headers['Content-Type']).toBe('foo/bar'); expect(headers['conTenT-Type']).toBeUndefined(); }); it('should not change non-matching header name', function () { var headers = { 'content-type': 'foo/bar', }; normalizeHeaderName(headers, 'Content-Length'); expect(headers['content-type']).toBe('foo/bar'); expect(headers['Content-Length']).toBeUndefined(); }); });