b6b9e88e47
* Added unit-tests for treeWalkPool * Added unit tests for tree-walk-fs * Added period at the end of all comments. * FS/XL: Unified tree walk tests for both backends * Added disk failure related tests for treewalk Replaced removeRandomDisks with removeDiskN. There is no need to randomize disks that fail while the distribution of chunks in XL during erasure coding data is random.
104 lines
2.7 KiB
Go
104 lines
2.7 KiB
Go
/*
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* Minio Cloud Storage, (C) 2016 Minio, Inc.
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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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package main
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import (
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"testing"
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"time"
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)
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// Test if tree walker go-routine is removed from the pool after timeout
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// and that is available in the pool before the timeout.
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func TestTreeWalkPoolBasic(t *testing.T) {
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// Create a treeWalkPool
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tw := newTreeWalkPool(1 * time.Second)
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// Create sample params
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params := listParams{
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bucket: "test-bucket",
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}
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// Add a treeWalk to the pool
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resultCh := make(chan treeWalkResult)
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endWalkCh := make(chan struct{})
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tw.Set(params, resultCh, endWalkCh)
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// Wait for treeWalkPool timeout to happen
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<-time.After(2 * time.Second)
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if c1, _ := tw.Release(params); c1 != nil {
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t.Error("treeWalk go-routine must have been freed")
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}
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// Add the treeWalk back to the pool
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tw.Set(params, resultCh, endWalkCh)
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// Release the treeWalk before timeout
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select {
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case <-time.After(1 * time.Second):
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break
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default:
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if c1, _ := tw.Release(params); c1 == nil {
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t.Error("treeWalk go-routine got freed before timeout")
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}
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}
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}
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// Test if multiple tree walkers for the same listParams are managed as expected by the pool.
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func TestManyWalksSameParam(t *testing.T) {
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// Create a treeWalkPool.
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tw := newTreeWalkPool(5 * time.Second)
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// Create sample params.
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params := listParams{
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bucket: "test-bucket",
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}
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select {
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// This timeout is an upper-bound. This is started
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// before the first treeWalk go-routine's timeout period starts.
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case <-time.After(5 * time.Second):
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break
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default:
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// Create many treeWalk go-routines for the same params.
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for i := 0; i < 10; i++ {
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resultCh := make(chan treeWalkResult)
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endWalkCh := make(chan struct{})
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tw.Set(params, resultCh, endWalkCh)
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}
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tw.lock.Lock()
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if walks, ok := tw.pool[params]; ok {
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if len(walks) != 10 {
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t.Error("There aren't as many walks as were Set")
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}
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}
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tw.lock.Unlock()
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for i := 0; i < 10; i++ {
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tw.lock.Lock()
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if walks, ok := tw.pool[params]; ok {
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// Before ith Release we should have 10-i treeWalk go-routines.
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if 10-i != len(walks) {
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t.Error("There aren't as many walks as were Set")
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}
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}
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tw.lock.Unlock()
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tw.Release(params)
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}
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}
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}
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