'use strict';
const assert = require('assert');
const http = require('http');
const sinon = require('sinon');
const Tailor = require('../index');
const PassThrough = require('stream').PassThrough;
describe('Handle tag', () => {
let server;
let tailor;
const mockTemplate = sinon.stub();
const mockHandleTag = sinon.stub();
beforeEach(done => {
tailor = new Tailor({
fetchTemplate: (request, parseTemplate) => {
const template = mockTemplate(request);
if (template) {
return parseTemplate(template);
} else {
return Promise.reject('Error fetching template');
}
},
pipeDefinition: () => Buffer.from(''),
handledTags: ['x-tag'],
handleTag: mockHandleTag
});
server = http.createServer(tailor.requestHandler);
server.listen(8080, 'localhost', done);
});
afterEach(done => {
mockTemplate.reset();
mockHandleTag.reset();
server.close(done);
});
it('calls handleTag for a tag in handledTags', done => {
mockTemplate.returns('test');
mockHandleTag.returns('');
http.get('http://localhost:8080/template', response => {
const request = mockHandleTag.args[0][0];
const tag = mockHandleTag.args[0][1];
assert.equal(request.url, '/template');
assert.deepEqual(tag, {
name: 'x-tag',
attributes: {
foo: 'bar'
}
});
response.resume();
response.on('end', done);
});
});
it('replaces the original tag with stream or string content', done => {
const st = new PassThrough();
mockTemplate.returns('');
mockHandleTag.onCall(0).returns(st);
mockHandleTag.onCall(1).returns('');
http.get('http://localhost:8080/template', response => {
let data = '';
response.on('data', chunk => (data += chunk));
response.on('end', () => {
assert.equal(
data,
''
);
done();
});
});
st.write('');
st.end('');
});
it('should let us inject arbitrary html inside the tags', done => {
mockTemplate.returns('test
');
mockHandleTag.onCall(0).returns('');
mockHandleTag.onCall(1).returns('');
http.get('http://localhost:8080/template', response => {
let data = '';
response.on('data', chunk => (data += chunk));
response.on('end', () => {
assert.equal(
data,
'test
'
);
done();
});
});
});
});