feat(vanilla): add testing infrastructure and tests (NK-wjnczv)

1 files changed, 48 insertions, 0 deletions

diff --git a/vanilla/node_modules/undici/lib/dispatcher/dispatcher.js b/vanilla/node_modules/undici/lib/dispatcher/dispatcher.js
new file mode 100644
index 0000000..824dfb6
--- /dev/null
+++ b/vanilla/node_modules/undici/lib/dispatcher/dispatcher.js
@@ -0,0 +1,48 @@
+'use strict'
+const EventEmitter = require('node:events')
+const WrapHandler = require('../handler/wrap-handler')
+
+const wrapInterceptor = (dispatch) => (opts, handler) => dispatch(opts, WrapHandler.wrap(handler))
+
+class Dispatcher extends EventEmitter {
+  dispatch () {
+    throw new Error('not implemented')
+  }
+
+  close () {
+    throw new Error('not implemented')
+  }
+
+  destroy () {
+    throw new Error('not implemented')
+  }
+
+  compose (...args) {
+    // So we handle [interceptor1, interceptor2] or interceptor1, interceptor2, ...
+    const interceptors = Array.isArray(args[0]) ? args[0] : args
+    let dispatch = this.dispatch.bind(this)
+
+    for (const interceptor of interceptors) {
+      if (interceptor == null) {
+        continue
+      }
+
+      if (typeof interceptor !== 'function') {
+        throw new TypeError(`invalid interceptor, expected function received ${typeof interceptor}`)
+      }
+
+      dispatch = interceptor(dispatch)
+      dispatch = wrapInterceptor(dispatch)
+
+      if (dispatch == null || typeof dispatch !== 'function' || dispatch.length !== 2) {
+        throw new TypeError('invalid interceptor')
+      }
+    }
+
+    return new Proxy(this, {
+      get: (target, key) => key === 'dispatch' ? dispatch : target[key]
+    })
+  }
+}
+
+module.exports = Dispatcher