test: http2 client socket operations

Refs: #14985

test/parallel/test-http2-client-socket-operations.js

@@ -0,0 +1,45 @@
+'use strict';
+
+const common = require('../common');
+if (!common.hasCrypto)
+  common.skip('missing crypto');
+const h2 = require('http2');
+
+const server = h2.createServer();
+server.on('stream', common.mustCall((stream) => {
+  stream.respond();
+  stream.end();
+}));
+
+server.listen(0, common.mustCall(() => {
+  const client = h2.connect(`http://localhost:${server.address().port}`);
+  const req = client.request({ ':path': '/' });
+
+  req.on(
+    'response',
+    common.mustCall(() => {
+      client.socket.pause();
+      // Force 'pause' when _handle.reading is false
+      client.socket.emit('pause');
+
+      client.socket.resume();
+      // Force 'resume' when _handle.reading is true
+      client.socket.emit('resume');
+
+      client.socket.emit('drain');
+    })
+  );
+  req.on('data', common.mustNotCall());
+
+  req.on(
+    'end',
+    common.mustCall(() => {
+      server.close();
+      client.destroy();
+    })
+  );
+
+  // On the client, the close event must call
+  client.on('close', common.mustCall());
+  req.end();
+}));