storj/satellite/audit/queue_test.go

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// Copyright (C) 2019 Storj Labs, Inc.
// See LICENSE for copying information.
package audit
import (
"context"
"testing"
"github.com/stretchr/testify/require"
"golang.org/x/sync/errgroup"
"storj.io/common/errs2"
"storj.io/common/testcontext"
"storj.io/common/testrand"
"storj.io/storj/satellite/metabase"
)
func TestQueues(t *testing.T) {
ctx := testcontext.New(t)
defer ctx.Cleanup()
queues := NewQueues()
q := queues.Fetch()
_, err := q.Next()
require.True(t, ErrEmptyQueue.Has(err), "required ErrEmptyQueue error")
testQueue1 := []Segment{testSegment(), testSegment(), testSegment()}
err = queues.Push(testQueue1)
require.NoError(t, err)
err = queues.WaitForSwap(ctx)
require.NoError(t, err)
q = queues.Fetch()
for _, expected := range testQueue1 {
actual, err := q.Next()
require.NoError(t, err)
require.EqualValues(t, expected, actual)
}
require.Zero(t, q.Size())
}
func TestQueuesPush(t *testing.T) {
ctx := testcontext.New(t)
defer ctx.Cleanup()
queues := NewQueues()
// when next queue is empty, WaitForSwap should return immediately
testQueue1 := []Segment{testSegment(), testSegment(), testSegment()}
err := queues.Push(testQueue1)
require.NoError(t, err)
err = queues.WaitForSwap(ctx)
require.NoError(t, err)
// second call to WaitForSwap should block until Fetch is called the first time
testQueue2 := []Segment{testSegment(), testSegment()}
err = queues.Push(testQueue2)
require.NoError(t, err)
var group errgroup.Group
group.Go(func() error {
return queues.WaitForSwap(ctx)
})
q := queues.Fetch()
for _, expected := range testQueue1 {
actual, err := q.Next()
require.NoError(t, err)
require.EqualValues(t, expected, actual)
}
// second call to Fetch should return testQueue2
q = queues.Fetch()
item, err := q.Next()
require.NoError(t, err)
require.EqualValues(t, testQueue2[0], item)
require.Equal(t, len(testQueue2)-1, q.Size())
err = group.Wait()
require.NoError(t, err)
}
func TestQueuesPushCancel(t *testing.T) {
ctx := testcontext.New(t)
defer ctx.Cleanup()
queues := NewQueues()
// when queue is empty, WaitForSwap should return immediately
testQueue1 := []Segment{testSegment(), testSegment(), testSegment()}
err := queues.Push(testQueue1)
require.NoError(t, err)
err = queues.WaitForSwap(ctx)
require.NoError(t, err)
ctxWithCancel, cancel := context.WithCancel(ctx)
testQueue2 := []Segment{testSegment(), testSegment()}
err = queues.Push(testQueue2)
require.NoError(t, err)
var group errgroup.Group
group.Go(func() error {
err = queues.WaitForSwap(ctxWithCancel)
require.True(t, errs2.IsCanceled(err))
return nil
})
// make sure a concurrent call to Push fails
err = queues.Push(testQueue2)
require.True(t, ErrPendingQueueInProgress.Has(err))
cancel()
err = group.Wait()
require.NoError(t, err)
}
func testSegment() Segment {
return Segment{
StreamID: testrand.UUID(),
Position: metabase.SegmentPosition{
Index: uint32(testrand.Intn(100)),
},
}
}