49 lines
1.2 KiB
Go
49 lines
1.2 KiB
Go
// Copyright 2016 Google Inc. 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 metadata
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import (
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"os"
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"sync"
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"testing"
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)
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func TestOnGCE_Stress(t *testing.T) {
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if testing.Short() {
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t.Skip("skipping in -short mode")
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}
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var last bool
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for i := 0; i < 100; i++ {
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onGCEOnce = sync.Once{}
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now := OnGCE()
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if i > 0 && now != last {
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t.Errorf("%d. changed from %v to %v", i, last, now)
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}
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last = now
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}
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t.Logf("OnGCE() = %v", last)
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}
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func TestOnGCE_Force(t *testing.T) {
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onGCEOnce = sync.Once{}
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old := os.Getenv(metadataHostEnv)
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defer os.Setenv(metadataHostEnv, old)
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os.Setenv(metadataHostEnv, "127.0.0.1")
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if !OnGCE() {
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t.Error("OnGCE() = false; want true")
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}
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}
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