mirror of https://github.com/grpc/grpc-go.git
64 lines
1.6 KiB
Go
64 lines
1.6 KiB
Go
/*
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*
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* Copyright 2018 gRPC 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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*
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*/
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package health
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import (
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"context"
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"errors"
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"reflect"
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"testing"
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"time"
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"google.golang.org/grpc/connectivity"
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)
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const defaultTestTimeout = 10 * time.Second
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func (s) TestClientHealthCheckBackoff(t *testing.T) {
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const maxRetries = 5
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var want []time.Duration
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for i := 0; i < maxRetries; i++ {
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want = append(want, time.Duration(i+1)*time.Second)
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}
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var got []time.Duration
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newStream := func(string) (any, error) {
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if len(got) < maxRetries {
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return nil, errors.New("backoff")
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}
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return nil, nil
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}
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oldBackoffFunc := backoffFunc
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backoffFunc = func(ctx context.Context, retries int) bool {
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got = append(got, time.Duration(retries+1)*time.Second)
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return true
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}
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defer func() { backoffFunc = oldBackoffFunc }()
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ctx, cancel := context.WithTimeout(context.Background(), defaultTestTimeout)
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defer cancel()
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clientHealthCheck(ctx, newStream, func(connectivity.State, error) {}, "test")
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if !reflect.DeepEqual(got, want) {
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t.Fatalf("Backoff durations for %v retries are %v. (expected: %v)", maxRetries, got, want)
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}
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}
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