fatsify核心功能示例测试!!!

node_modules/fastify/test/set-error-handler.test.js

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+'use strict'
+
+const { test } = require('node:test')
+const Fastify = require('..')
+const { FST_ERR_ERROR_HANDLER_NOT_FN, FST_ERR_ERROR_HANDLER_ALREADY_SET } = require('../lib/errors')
+
+test('setErrorHandler should throw an error if the handler is not a function', t => {
+  t.plan(1)
+  const fastify = Fastify()
+
+  t.assert.throws(() => fastify.setErrorHandler('not a function'), new FST_ERR_ERROR_HANDLER_NOT_FN())
+})
+
+test('setErrorHandler can be set independently in parent and child scopes', async t => {
+  t.plan(1)
+
+  const fastify = Fastify()
+
+  t.assert.doesNotThrow(() => {
+    fastify.setErrorHandler(() => {})
+    fastify.register(async (child) => {
+      child.setErrorHandler(() => {})
+    })
+  })
+})
+
+test('setErrorHandler can be overriden if allowErrorHandlerOverride is set to true', async t => {
+  t.plan(2)
+
+  const fastify = Fastify()
+  t.after(() => fastify.close())
+
+  fastify.register(async (child) => {
+    child.setErrorHandler(() => {})
+    t.assert.doesNotThrow(() => child.setErrorHandler(() => {}))
+  })
+
+  fastify.setErrorHandler(() => {})
+  t.assert.doesNotThrow(() => fastify.setErrorHandler(() => {}))
+
+  await fastify.ready()
+})
+
+test('if `allowErrorHandlerOverride` is disabled, setErrorHandler should throw if called more than once in the same scope', t => {
+  t.plan(1)
+
+  const fastify = Fastify({
+    allowErrorHandlerOverride: false
+  })
+
+  fastify.setErrorHandler(() => {})
+  t.assert.throws(() => fastify.setErrorHandler(() => {}), new FST_ERR_ERROR_HANDLER_ALREADY_SET())
+})
+
+test('if `allowErrorHandlerOverride` is disabled, setErrorHandler should throw if called more than once in the same scope 2', async t => {
+  t.plan(1)
+
+  const fastify = Fastify({
+    allowErrorHandlerOverride: false
+  })
+  t.after(() => fastify.close())
+
+  fastify.register(async (child) => {
+    child.setErrorHandler(() => {})
+    t.assert.throws(() => child.setErrorHandler(() => {}), new FST_ERR_ERROR_HANDLER_ALREADY_SET())
+  })
+
+  await fastify.ready()
+})