Move Delayer/Backoff stub in its own file

Signed-off-by: Luca Bigliardi <shammash@google.com>

fake_delayer.go

@@ -0,0 +1,39 @@
+// Copyright 2021 Google LLC
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     https://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package main
+
+import (
+	"context"
+	"log"
+)
+
+type FakeDelayer struct {
+	DelayOnChan bool
+	StopDelay   chan bool
+}
+
+func (f *FakeDelayer) Delay() {
+	f.DelayContext(context.Background())
+}
+
+func (f *FakeDelayer) DelayContext(ctx context.Context) bool {
+	log.Printf("Faking Backoff")
+	if f.DelayOnChan {
+		log.Printf("Waiting StopDelay signal")
+		<-f.StopDelay
+		log.Printf("Received StopDelay signal")
+	}
+	return true
+}

irc_test.go

@@ -195,25 +195,6 @@ func makeTestServer(t *testing.T) (*testServer, int) {
 	return server, addr.Port
 }
 
-type FakeDelayer struct {
-	DelayOnChan bool
-	StopDelay   chan bool
-}
-
-func (f *FakeDelayer) Delay() {
-	f.DelayContext(context.Background())
-}
-
-func (f *FakeDelayer) DelayContext(ctx context.Context) bool {
-	log.Printf("Faking Backoff")
-	if f.DelayOnChan {
-		log.Printf("Waiting StopDelay signal")
-		<-f.StopDelay
-		log.Printf("Received StopDelay signal")
-	}
-	return true
-}
-
 func makeTestIRCConfig(IRCPort int) *Config {
 	return &Config{
 		IRCNick:     "foo",