Updated vednor files

vendor/k8s.io/client-go/util/flowcontrol/throttle_test.go

@@ -1,177 +0,0 @@
-/*
-Copyright 2014 The Kubernetes Authors.
-
-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
-
-    http://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 flowcontrol
-
-import (
-	"math"
-	"sync"
-	"testing"
-	"time"
-)
-
-func TestMultithreadedThrottling(t *testing.T) {
-	// Bucket with 100QPS and no burst
-	r := NewTokenBucketRateLimiter(100, 1)
-
-	// channel to collect 100 tokens
-	taken := make(chan bool, 100)
-
-	// Set up goroutines to hammer the throttler
-	startCh := make(chan bool)
-	endCh := make(chan bool)
-	for i := 0; i < 10; i++ {
-		go func() {
-			// wait for the starting signal
-			<-startCh
-			for {
-				// get a token
-				r.Accept()
-				select {
-				// try to add it to the taken channel
-				case taken <- true:
-					continue
-				// if taken is full, notify and return
-				default:
-					endCh <- true
-					return
-				}
-			}
-		}()
-	}
-
-	// record wall time
-	startTime := time.Now()
-	// take the initial capacity so all tokens are the result of refill
-	r.Accept()
-	// start the thundering herd
-	close(startCh)
-	// wait for the first signal that we collected 100 tokens
-	<-endCh
-	// record wall time
-	endTime := time.Now()
-
-	// tolerate a 1% clock change because these things happen
-	if duration := endTime.Sub(startTime); duration < (time.Second * 99 / 100) {
-		// We shouldn't be able to get 100 tokens out of the bucket in less than 1 second of wall clock time, no matter what
-		t.Errorf("Expected it to take at least 1 second to get 100 tokens, took %v", duration)
-	} else {
-		t.Logf("Took %v to get 100 tokens", duration)
-	}
-}
-
-func TestBasicThrottle(t *testing.T) {
-	r := NewTokenBucketRateLimiter(1, 3)
-	for i := 0; i < 3; i++ {
-		if !r.TryAccept() {
-			t.Error("unexpected false accept")
-		}
-	}
-	if r.TryAccept() {
-		t.Error("unexpected true accept")
-	}
-}
-
-func TestIncrementThrottle(t *testing.T) {
-	r := NewTokenBucketRateLimiter(1, 1)
-	if !r.TryAccept() {
-		t.Error("unexpected false accept")
-	}
-	if r.TryAccept() {
-		t.Error("unexpected true accept")
-	}
-
-	// Allow to refill
-	time.Sleep(2 * time.Second)
-
-	if !r.TryAccept() {
-		t.Error("unexpected false accept")
-	}
-}
-
-func TestThrottle(t *testing.T) {
-	r := NewTokenBucketRateLimiter(10, 5)
-
-	// Should consume 5 tokens immediately, then
-	// the remaining 11 should take at least 1 second (0.1s each)
-	expectedFinish := time.Now().Add(time.Second * 1)
-	for i := 0; i < 16; i++ {
-		r.Accept()
-	}
-	if time.Now().Before(expectedFinish) {
-		t.Error("rate limit was not respected, finished too early")
-	}
-}
-
-func TestRateLimiterSaturation(t *testing.T) {
-	const e = 0.000001
-	tests := []struct {
-		capacity int
-		take     int
-
-		expectedSaturation float64
-	}{
-		{1, 1, 1},
-		{10, 3, 0.3},
-	}
-	for i, tt := range tests {
-		rl := NewTokenBucketRateLimiter(1, tt.capacity)
-		for i := 0; i < tt.take; i++ {
-			rl.Accept()
-		}
-		if math.Abs(rl.Saturation()-tt.expectedSaturation) > e {
-			t.Fatalf("#%d: Saturation rate difference isn't within tolerable range\n want=%f, get=%f",
-				i, tt.expectedSaturation, rl.Saturation())
-		}
-	}
-}
-
-func TestAlwaysFake(t *testing.T) {
-	rl := NewFakeAlwaysRateLimiter()
-	if !rl.TryAccept() {
-		t.Error("TryAccept in AlwaysFake should return true.")
-	}
-	// If this will block the test will timeout
-	rl.Accept()
-}
-
-func TestNeverFake(t *testing.T) {
-	rl := NewFakeNeverRateLimiter()
-	if rl.TryAccept() {
-		t.Error("TryAccept in NeverFake should return false.")
-	}
-
-	finished := false
-	wg := sync.WaitGroup{}
-	wg.Add(1)
-	go func() {
-		rl.Accept()
-		finished = true
-		wg.Done()
-	}()
-
-	// Wait some time to make sure it never finished.
-	time.Sleep(time.Second)
-	if finished {
-		t.Error("Accept should block forever in NeverFake.")
-	}
-
-	rl.Stop()
-	wg.Wait()
-	if !finished {
-		t.Error("Stop should make Accept unblock in NeverFake.")
-	}
-}