mirror of
https://github.com/fatedier/frp.git
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48 lines
1.6 KiB
Go
48 lines
1.6 KiB
Go
// Copyright 2026 The frp Authors
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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//go:build !frps
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package visitor
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import (
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"testing"
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"time"
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"github.com/stretchr/testify/require"
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)
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// TestVirtualNetReconnectDelay verifies the documented exponential backoff and
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// ensures large error counts remain capped instead of overflowing to zero.
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func TestVirtualNetReconnectDelay(t *testing.T) {
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tests := []struct {
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name string
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consecutiveErrors int
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want time.Duration
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}{
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{name: "first error", consecutiveErrors: 1, want: 60 * time.Second},
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{name: "second error", consecutiveErrors: 2, want: 120 * time.Second},
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{name: "third error", consecutiveErrors: 3, want: 240 * time.Second},
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{name: "fourth error", consecutiveErrors: 4, want: 300 * time.Second},
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{name: "shift width boundary", consecutiveErrors: 64, want: 300 * time.Second},
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{name: "observed retry storm", consecutiveErrors: 329769, want: 300 * time.Second},
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}
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for _, tt := range tests {
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t.Run(tt.name, func(t *testing.T) {
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require.Equal(t, tt.want, virtualNetReconnectDelay(tt.consecutiveErrors))
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})
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}
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}
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