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backend/node_modules/find-my-way/test/constraint.host.test.js

@@ -0,0 +1,105 @@
+'use strict'
+
+const t = require('tap')
+const test = t.test
+const FindMyWay = require('..')
+const alpha = () => { }
+const beta = () => { }
+const gamma = () => { }
+
+test('A route supports multiple host constraints', t => {
+  t.plan(4)
+
+  const findMyWay = FindMyWay()
+
+  findMyWay.on('GET', '/', {}, alpha)
+  findMyWay.on('GET', '/', { constraints: { host: 'fastify.io' } }, beta)
+  findMyWay.on('GET', '/', { constraints: { host: 'example.com' } }, gamma)
+
+  t.equal(findMyWay.find('GET', '/', {}).handler, alpha)
+  t.equal(findMyWay.find('GET', '/', { host: 'something-else.io' }).handler, alpha)
+  t.equal(findMyWay.find('GET', '/', { host: 'fastify.io' }).handler, beta)
+  t.equal(findMyWay.find('GET', '/', { host: 'example.com' }).handler, gamma)
+})
+
+test('A route supports wildcard host constraints', t => {
+  t.plan(4)
+
+  const findMyWay = FindMyWay()
+
+  findMyWay.on('GET', '/', { constraints: { host: 'fastify.io' } }, beta)
+  findMyWay.on('GET', '/', { constraints: { host: /.*\.fastify\.io/ } }, gamma)
+
+  t.equal(findMyWay.find('GET', '/', { host: 'fastify.io' }).handler, beta)
+  t.equal(findMyWay.find('GET', '/', { host: 'foo.fastify.io' }).handler, gamma)
+  t.equal(findMyWay.find('GET', '/', { host: 'bar.fastify.io' }).handler, gamma)
+  t.notOk(findMyWay.find('GET', '/', { host: 'example.com' }))
+})
+
+test('A route supports multiple host constraints (lookup)', t => {
+  t.plan(4)
+
+  const findMyWay = FindMyWay()
+
+  findMyWay.on('GET', '/', {}, (req, res) => {})
+  findMyWay.on('GET', '/', { constraints: { host: 'fastify.io' } }, (req, res) => {
+    t.equal(req.headers.host, 'fastify.io')
+  })
+  findMyWay.on('GET', '/', { constraints: { host: 'example.com' } }, (req, res) => {
+    t.equal(req.headers.host, 'example.com')
+  })
+  findMyWay.on('GET', '/', { constraints: { host: /.+\.fancy\.ca/ } }, (req, res) => {
+    t.ok(req.headers.host.endsWith('.fancy.ca'))
+  })
+
+  findMyWay.lookup({
+    method: 'GET',
+    url: '/',
+    headers: { host: 'fastify.io' }
+  })
+
+  findMyWay.lookup({
+    method: 'GET',
+    url: '/',
+    headers: { host: 'example.com' }
+  })
+  findMyWay.lookup({
+    method: 'GET',
+    url: '/',
+    headers: { host: 'foo.fancy.ca' }
+  })
+  findMyWay.lookup({
+    method: 'GET',
+    url: '/',
+    headers: { host: 'bar.fancy.ca' }
+  })
+})
+
+test('A route supports up to 31 host constraints', (t) => {
+  t.plan(1)
+
+  const findMyWay = FindMyWay()
+
+  for (let i = 0; i < 31; i++) {
+    const host = `h${i.toString().padStart(2, '0')}`
+    findMyWay.on('GET', '/', { constraints: { host } }, alpha)
+  }
+
+  t.equal(findMyWay.find('GET', '/', { host: 'h01' }).handler, alpha)
+})
+
+test('A route throws when constraint limit exceeded', (t) => {
+  t.plan(1)
+
+  const findMyWay = FindMyWay()
+
+  for (let i = 0; i < 31; i++) {
+    const host = `h${i.toString().padStart(2, '0')}`
+    findMyWay.on('GET', '/', { constraints: { host } }, alpha)
+  }
+
+  t.throws(
+    () => findMyWay.on('GET', '/', { constraints: { host: 'h31' } }, beta),
+    'find-my-way supports a maximum of 31 route handlers per node when there are constraints, limit reached'
+  )
+})