mirror of
https://github.com/ko-build/ko.git
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63 lines
1.5 KiB
Go
63 lines
1.5 KiB
Go
// Copyright 2019 ko Build Authors All Rights Reserved.
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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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package build
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import (
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"context"
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"testing"
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"time"
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"golang.org/x/sync/errgroup"
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)
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type sleeper struct{}
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var _ Interface = (*sleeper)(nil)
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// QualifyImport implements Interface
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func (*sleeper) QualifyImport(ip string) (string, error) {
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return ip, nil
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}
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// IsSupportedReference implements Interface
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func (*sleeper) IsSupportedReference(_ string) error {
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return nil
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}
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// Build implements Interface
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func (*sleeper) Build(_ context.Context, _ string) (Result, error) {
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time.Sleep(50 * time.Millisecond)
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return nil, nil
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}
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func TestLimiter(t *testing.T) {
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b := NewLimiter(&sleeper{}, 2)
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start := time.Now()
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g, _ := errgroup.WithContext(context.TODO())
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for i := 0; i <= 10; i++ {
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g.Go(func() error {
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_, _ = b.Build(context.Background(), "whatever")
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return nil
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})
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}
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g.Wait()
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// 50 ms * 10 builds / 2 concurrency = ~250ms
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if time.Now().Before(start.Add(250 * time.Millisecond)) {
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t.Fatal("Too many builds")
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}
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}
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