794 lines
15 KiB
Go
794 lines
15 KiB
Go
package nomad
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import (
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"testing"
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"time"
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"github.com/hashicorp/nomad/nomad/mock"
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"github.com/hashicorp/nomad/nomad/structs"
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)
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var (
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defaultSched = []string{
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structs.JobTypeService,
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structs.JobTypeBatch,
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}
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)
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func testBroker(t *testing.T, timeout time.Duration) *EvalBroker {
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if timeout == 0 {
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timeout = 5 * time.Second
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}
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b, err := NewEvalBroker(timeout, 3)
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if err != nil {
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t.Fatalf("err: %v", err)
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}
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return b
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}
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func TestEvalBroker_Enqueue_Dequeue_Nack_Ack(t *testing.T) {
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b := testBroker(t, 0)
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// Enqueue, but broker is disabled!
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eval := mock.Eval()
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err := b.Enqueue(eval)
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if err != nil {
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t.Fatalf("err: %v", err)
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}
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// Verify nothing was done
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stats := b.Stats()
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if stats.TotalReady != 0 {
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t.Fatalf("bad: %#v", stats)
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}
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if b.Enabled() {
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t.Fatalf("should not be enabled")
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}
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// Enable the broker, and enqueue
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b.SetEnabled(true)
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err = b.Enqueue(eval)
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if err != nil {
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t.Fatalf("err: %v", err)
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}
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// Double enqueue is a no-op
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err = b.Enqueue(eval)
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if err != nil {
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t.Fatalf("err: %v", err)
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}
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if !b.Enabled() {
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t.Fatalf("should be enabled")
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}
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// Verify enqueue is done
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stats = b.Stats()
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if stats.TotalReady != 1 {
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t.Fatalf("bad: %#v", stats)
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}
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if stats.ByScheduler[eval.Type].Ready != 1 {
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t.Fatalf("bad: %#v", stats)
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}
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// Dequeue should work
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out, token, err := b.Dequeue(defaultSched, time.Second)
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if err != nil {
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t.Fatalf("err: %v", err)
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}
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if out != eval {
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t.Fatalf("bad : %#v", out)
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}
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tokenOut, ok := b.Outstanding(out.ID)
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if !ok {
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t.Fatalf("should be outstanding")
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}
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if tokenOut != token {
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t.Fatalf("Bad: %#v %#v", token, tokenOut)
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}
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// OutstandingReset should verify the token
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err = b.OutstandingReset("nope", "foo")
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if err != ErrNotOutstanding {
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t.Fatalf("err: %v", err)
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}
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err = b.OutstandingReset(out.ID, "foo")
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if err != ErrTokenMismatch {
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t.Fatalf("err: %v", err)
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}
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err = b.OutstandingReset(out.ID, tokenOut)
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if err != nil {
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t.Fatalf("err: %v", err)
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}
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// Check the stats
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stats = b.Stats()
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if stats.TotalReady != 0 {
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t.Fatalf("bad: %#v", stats)
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}
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if stats.TotalUnacked != 1 {
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t.Fatalf("bad: %#v", stats)
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}
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if stats.ByScheduler[eval.Type].Ready != 0 {
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t.Fatalf("bad: %#v", stats)
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}
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if stats.ByScheduler[eval.Type].Unacked != 1 {
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t.Fatalf("bad: %#v", stats)
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}
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// Nack with wrong token should fail
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err = b.Nack(eval.ID, "foobarbaz")
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if err == nil {
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t.Fatalf("should fail to nack")
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}
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// Nack back into the queue
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err = b.Nack(eval.ID, token)
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if err != nil {
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t.Fatalf("err: %v", err)
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}
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if _, ok := b.Outstanding(out.ID); ok {
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t.Fatalf("should not be outstanding")
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}
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// Check the stats
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stats = b.Stats()
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if stats.TotalReady != 1 {
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t.Fatalf("bad: %#v", stats)
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}
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if stats.TotalUnacked != 0 {
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t.Fatalf("bad: %#v", stats)
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}
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if stats.ByScheduler[eval.Type].Ready != 1 {
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t.Fatalf("bad: %#v", stats)
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}
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if stats.ByScheduler[eval.Type].Unacked != 0 {
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t.Fatalf("bad: %#v", stats)
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}
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// Dequeue should work again
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out2, token2, err := b.Dequeue(defaultSched, time.Second)
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if err != nil {
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t.Fatalf("err: %v", err)
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}
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if out2 != eval {
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t.Fatalf("bad : %#v", out2)
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}
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if token2 == token {
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t.Fatalf("should get a new token")
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}
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tokenOut2, ok := b.Outstanding(out.ID)
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if !ok {
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t.Fatalf("should be outstanding")
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}
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if tokenOut2 != token2 {
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t.Fatalf("Bad: %#v %#v", token2, tokenOut2)
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}
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// Ack with wrong token
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err = b.Ack(eval.ID, "zip")
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if err == nil {
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t.Fatalf("should fail to ack")
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}
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// Ack finally
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err = b.Ack(eval.ID, token2)
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if err != nil {
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t.Fatalf("err: %v", err)
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}
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if _, ok := b.Outstanding(out.ID); ok {
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t.Fatalf("should not be outstanding")
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}
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// Check the stats
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stats = b.Stats()
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if stats.TotalReady != 0 {
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t.Fatalf("bad: %#v", stats)
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}
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if stats.TotalUnacked != 0 {
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t.Fatalf("bad: %#v", stats)
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}
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if stats.ByScheduler[eval.Type].Ready != 0 {
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t.Fatalf("bad: %#v", stats)
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}
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if stats.ByScheduler[eval.Type].Unacked != 0 {
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t.Fatalf("bad: %#v", stats)
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}
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}
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func TestEvalBroker_Serialize_DuplicateJobID(t *testing.T) {
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b := testBroker(t, 0)
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b.SetEnabled(true)
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eval := mock.Eval()
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err := b.Enqueue(eval)
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if err != nil {
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t.Fatalf("err: %v", err)
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}
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eval2 := mock.Eval()
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eval2.JobID = eval.JobID
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eval2.CreateIndex = eval.CreateIndex + 1
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err = b.Enqueue(eval2)
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if err != nil {
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t.Fatalf("err: %v", err)
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}
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eval3 := mock.Eval()
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eval3.JobID = eval.JobID
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eval3.CreateIndex = eval.CreateIndex + 2
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err = b.Enqueue(eval3)
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if err != nil {
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t.Fatalf("err: %v", err)
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}
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stats := b.Stats()
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if stats.TotalReady != 1 {
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t.Fatalf("bad: %#v", stats)
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}
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if stats.TotalBlocked != 2 {
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t.Fatalf("bad: %#v", stats)
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}
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// Dequeue should work
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out, token, err := b.Dequeue(defaultSched, time.Second)
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if err != nil {
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t.Fatalf("err: %v", err)
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}
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if out != eval {
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t.Fatalf("bad : %#v", out)
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}
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// Check the stats
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stats = b.Stats()
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if stats.TotalReady != 0 {
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t.Fatalf("bad: %#v", stats)
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}
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if stats.TotalUnacked != 1 {
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t.Fatalf("bad: %#v", stats)
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}
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if stats.TotalBlocked != 2 {
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t.Fatalf("bad: %#v", stats)
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}
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// Ack out
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err = b.Ack(eval.ID, token)
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if err != nil {
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t.Fatalf("err: %v", err)
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}
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// Check the stats
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stats = b.Stats()
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if stats.TotalReady != 1 {
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t.Fatalf("bad: %#v", stats)
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}
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if stats.TotalUnacked != 0 {
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t.Fatalf("bad: %#v", stats)
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}
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if stats.TotalBlocked != 1 {
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t.Fatalf("bad: %#v", stats)
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}
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// Dequeue should work
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out, token, err = b.Dequeue(defaultSched, time.Second)
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if err != nil {
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t.Fatalf("err: %v", err)
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}
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if out != eval2 {
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t.Fatalf("bad : %#v", out)
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}
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// Check the stats
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stats = b.Stats()
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if stats.TotalReady != 0 {
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t.Fatalf("bad: %#v", stats)
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}
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if stats.TotalUnacked != 1 {
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t.Fatalf("bad: %#v", stats)
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}
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if stats.TotalBlocked != 1 {
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t.Fatalf("bad: %#v", stats)
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}
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// Ack out
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err = b.Ack(eval2.ID, token)
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if err != nil {
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t.Fatalf("err: %v", err)
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}
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// Check the stats
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stats = b.Stats()
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if stats.TotalReady != 1 {
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t.Fatalf("bad: %#v", stats)
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}
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if stats.TotalUnacked != 0 {
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t.Fatalf("bad: %#v", stats)
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}
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if stats.TotalBlocked != 0 {
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t.Fatalf("bad: %#v", stats)
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}
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// Dequeue should work
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out, token, err = b.Dequeue(defaultSched, time.Second)
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if err != nil {
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t.Fatalf("err: %v", err)
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}
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if out != eval3 {
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t.Fatalf("bad : %#v", out)
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}
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// Check the stats
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stats = b.Stats()
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if stats.TotalReady != 0 {
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t.Fatalf("bad: %#v", stats)
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}
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if stats.TotalUnacked != 1 {
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t.Fatalf("bad: %#v", stats)
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}
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if stats.TotalBlocked != 0 {
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t.Fatalf("bad: %#v", stats)
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}
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// Ack out
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err = b.Ack(eval3.ID, token)
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if err != nil {
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t.Fatalf("err: %v", err)
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}
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// Check the stats
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stats = b.Stats()
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if stats.TotalReady != 0 {
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t.Fatalf("bad: %#v", stats)
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}
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if stats.TotalUnacked != 0 {
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t.Fatalf("bad: %#v", stats)
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}
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if stats.TotalBlocked != 0 {
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t.Fatalf("bad: %#v", stats)
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}
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}
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func TestEvalBroker_Enqueue_Disable(t *testing.T) {
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b := testBroker(t, 0)
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// Enqueue
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eval := mock.Eval()
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b.SetEnabled(true)
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err := b.Enqueue(eval)
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if err != nil {
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t.Fatalf("err: %v", err)
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}
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// Flush via SetEnabled
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b.SetEnabled(false)
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// Check the stats
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stats := b.Stats()
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if stats.TotalReady != 0 {
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t.Fatalf("bad: %#v", stats)
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}
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if stats.TotalUnacked != 0 {
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t.Fatalf("bad: %#v", stats)
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}
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if _, ok := stats.ByScheduler[eval.Type]; ok {
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t.Fatalf("bad: %#v", stats)
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}
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}
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func TestEvalBroker_Dequeue_Timeout(t *testing.T) {
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b := testBroker(t, 0)
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b.SetEnabled(true)
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start := time.Now()
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out, _, err := b.Dequeue(defaultSched, 5*time.Millisecond)
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end := time.Now()
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if err != nil {
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t.Fatalf("err: %v", err)
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}
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if out != nil {
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t.Fatalf("unexpected: %#v", out)
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}
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if diff := end.Sub(start); diff < 5*time.Millisecond {
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t.Fatalf("bad: %#v", diff)
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}
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}
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func TestEvalBroker_Dequeue_Empty_Timeout(t *testing.T) {
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b := testBroker(t, 0)
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b.SetEnabled(true)
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doneCh := make(chan struct{}, 1)
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go func() {
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out, _, err := b.Dequeue(defaultSched, 0)
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if err != nil {
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t.Fatalf("err: %v", err)
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}
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if out == nil {
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t.Fatal("Expect an eval")
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}
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doneCh <- struct{}{}
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}()
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// Sleep for a little bit
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select {
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case <-time.After(5 * time.Millisecond):
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case <-doneCh:
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t.Fatalf("Dequeue(0) should block")
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}
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// Enqueue to unblock the dequeue.
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eval := mock.Eval()
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err := b.Enqueue(eval)
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if err != nil {
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t.Fatalf("err: %v", err)
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}
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select {
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case <-doneCh:
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return
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case <-time.After(5 * time.Millisecond):
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t.Fatal("timeout: Dequeue(0) should return after enqueue")
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}
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}
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// Ensure higher priority dequeued first
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func TestEvalBroker_Dequeue_Priority(t *testing.T) {
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b := testBroker(t, 0)
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b.SetEnabled(true)
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eval1 := mock.Eval()
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eval1.Priority = 10
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b.Enqueue(eval1)
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eval2 := mock.Eval()
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eval2.Priority = 30
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b.Enqueue(eval2)
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eval3 := mock.Eval()
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eval3.Priority = 20
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b.Enqueue(eval3)
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out1, _, _ := b.Dequeue(defaultSched, time.Second)
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if out1 != eval2 {
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t.Fatalf("bad: %#v", out1)
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}
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out2, _, _ := b.Dequeue(defaultSched, time.Second)
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if out2 != eval3 {
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t.Fatalf("bad: %#v", out2)
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}
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out3, _, _ := b.Dequeue(defaultSched, time.Second)
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if out3 != eval1 {
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t.Fatalf("bad: %#v", out3)
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}
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}
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// Ensure FIFO at fixed priority
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func TestEvalBroker_Dequeue_FIFO(t *testing.T) {
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b := testBroker(t, 0)
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b.SetEnabled(true)
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NUM := 100
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for i := 0; i < NUM; i++ {
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eval1 := mock.Eval()
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eval1.CreateIndex = uint64(i)
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eval1.ModifyIndex = uint64(i)
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b.Enqueue(eval1)
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}
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for i := 0; i < NUM; i++ {
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out1, _, _ := b.Dequeue(defaultSched, time.Second)
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if out1.CreateIndex != uint64(i) {
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t.Fatalf("bad: %d %#v", i, out1)
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}
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}
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}
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// Ensure fairness between schedulers
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func TestEvalBroker_Dequeue_Fairness(t *testing.T) {
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b := testBroker(t, 0)
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b.SetEnabled(true)
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NUM := 100
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for i := 0; i < NUM; i++ {
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eval1 := mock.Eval()
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if i < (NUM / 2) {
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eval1.Type = structs.JobTypeService
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} else {
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eval1.Type = structs.JobTypeBatch
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}
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b.Enqueue(eval1)
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}
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counter := 0
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for i := 0; i < NUM; i++ {
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out1, _, _ := b.Dequeue(defaultSched, time.Second)
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switch out1.Type {
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case structs.JobTypeService:
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if counter < 0 {
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counter = 0
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}
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counter += 1
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case structs.JobTypeBatch:
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if counter > 0 {
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counter = 0
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}
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counter -= 1
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}
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// This will fail randomly at times. It is very hard to
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// test deterministically that its acting randomly.
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if counter >= 25 || counter <= -25 {
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t.Fatalf("unlikely sequence: %d", counter)
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}
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}
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}
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// Ensure we get unblocked
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func TestEvalBroker_Dequeue_Blocked(t *testing.T) {
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b := testBroker(t, 0)
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b.SetEnabled(true)
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// Start with a blocked dequeue
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outCh := make(chan *structs.Evaluation, 1)
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go func() {
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start := time.Now()
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out, _, err := b.Dequeue(defaultSched, time.Second)
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end := time.Now()
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outCh <- out
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if err != nil {
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t.Fatalf("err: %v", err)
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}
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if d := end.Sub(start); d < 5*time.Millisecond {
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t.Fatalf("bad: %v", d)
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}
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}()
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// Wait for a bit
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time.Sleep(5 * time.Millisecond)
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// Enqueue
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eval := mock.Eval()
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err := b.Enqueue(eval)
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if err != nil {
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t.Fatalf("err: %v", err)
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}
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// Ensure dequeue
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select {
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case out := <-outCh:
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if out != eval {
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t.Fatalf("bad: %v", out)
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}
|
|
case <-time.After(time.Second):
|
|
t.Fatalf("timeout")
|
|
}
|
|
}
|
|
|
|
// Ensure we nack in a timely manner
|
|
func TestEvalBroker_Nack_Timeout(t *testing.T) {
|
|
b := testBroker(t, 5*time.Millisecond)
|
|
b.SetEnabled(true)
|
|
|
|
// Enqueue
|
|
eval := mock.Eval()
|
|
err := b.Enqueue(eval)
|
|
if err != nil {
|
|
t.Fatalf("err: %v", err)
|
|
}
|
|
|
|
// Dequeue
|
|
out, _, err := b.Dequeue(defaultSched, time.Second)
|
|
start := time.Now()
|
|
if err != nil {
|
|
t.Fatalf("err: %v", err)
|
|
}
|
|
if out != eval {
|
|
t.Fatalf("bad: %v", out)
|
|
}
|
|
|
|
// Dequeue, should block on Nack timer
|
|
out, _, err = b.Dequeue(defaultSched, time.Second)
|
|
end := time.Now()
|
|
if err != nil {
|
|
t.Fatalf("err: %v", err)
|
|
}
|
|
if out != eval {
|
|
t.Fatalf("bad: %v", out)
|
|
}
|
|
|
|
// Check the nack timer
|
|
if diff := end.Sub(start); diff < 5*time.Millisecond {
|
|
t.Fatalf("bad: %#v", diff)
|
|
}
|
|
}
|
|
|
|
// Ensure we nack in a timely manner
|
|
func TestEvalBroker_Nack_TimeoutReset(t *testing.T) {
|
|
b := testBroker(t, 5*time.Millisecond)
|
|
b.SetEnabled(true)
|
|
|
|
// Enqueue
|
|
eval := mock.Eval()
|
|
err := b.Enqueue(eval)
|
|
if err != nil {
|
|
t.Fatalf("err: %v", err)
|
|
}
|
|
|
|
// Dequeue
|
|
out, token, err := b.Dequeue(defaultSched, time.Second)
|
|
start := time.Now()
|
|
if err != nil {
|
|
t.Fatalf("err: %v", err)
|
|
}
|
|
if out != eval {
|
|
t.Fatalf("bad: %v", out)
|
|
}
|
|
|
|
// Reset in 2 milliseconds
|
|
time.Sleep(2 * time.Millisecond)
|
|
if err := b.OutstandingReset(out.ID, token); err != nil {
|
|
t.Fatalf("err: %v", err)
|
|
}
|
|
|
|
// Dequeue, should block on Nack timer
|
|
out, _, err = b.Dequeue(defaultSched, time.Second)
|
|
end := time.Now()
|
|
if err != nil {
|
|
t.Fatalf("err: %v", err)
|
|
}
|
|
if out != eval {
|
|
t.Fatalf("bad: %v", out)
|
|
}
|
|
|
|
// Check the nack timer
|
|
if diff := end.Sub(start); diff < 7*time.Millisecond {
|
|
t.Fatalf("bad: %#v", diff)
|
|
}
|
|
}
|
|
|
|
func TestEvalBroker_DeliveryLimit(t *testing.T) {
|
|
b := testBroker(t, 0)
|
|
b.SetEnabled(true)
|
|
|
|
eval := mock.Eval()
|
|
err := b.Enqueue(eval)
|
|
if err != nil {
|
|
t.Fatalf("err: %v", err)
|
|
}
|
|
|
|
for i := 0; i < 3; i++ {
|
|
// Dequeue should work
|
|
out, token, err := b.Dequeue(defaultSched, time.Second)
|
|
if err != nil {
|
|
t.Fatalf("err: %v", err)
|
|
}
|
|
if out != eval {
|
|
t.Fatalf("bad : %#v", out)
|
|
}
|
|
|
|
// Nack with wrong token should fail
|
|
err = b.Nack(eval.ID, token)
|
|
if err != nil {
|
|
t.Fatalf("err: %v", err)
|
|
}
|
|
}
|
|
|
|
// Check the stats
|
|
stats := b.Stats()
|
|
if stats.TotalReady != 1 {
|
|
t.Fatalf("bad: %#v", stats)
|
|
}
|
|
if stats.TotalUnacked != 0 {
|
|
t.Fatalf("bad: %#v", stats)
|
|
}
|
|
if stats.ByScheduler[failedQueue].Ready != 1 {
|
|
t.Fatalf("bad: %#v", stats)
|
|
}
|
|
if stats.ByScheduler[failedQueue].Unacked != 0 {
|
|
t.Fatalf("bad: %#v", stats)
|
|
}
|
|
|
|
// Dequeue from failed queue
|
|
out, token, err := b.Dequeue([]string{failedQueue}, time.Second)
|
|
if err != nil {
|
|
t.Fatalf("err: %v", err)
|
|
}
|
|
if out != eval {
|
|
t.Fatalf("bad : %#v", out)
|
|
}
|
|
|
|
// Check the stats
|
|
stats = b.Stats()
|
|
if stats.TotalReady != 0 {
|
|
t.Fatalf("bad: %#v", stats)
|
|
}
|
|
if stats.TotalUnacked != 1 {
|
|
t.Fatalf("bad: %#v", stats)
|
|
}
|
|
if stats.ByScheduler[failedQueue].Ready != 0 {
|
|
t.Fatalf("bad: %#v", stats)
|
|
}
|
|
if stats.ByScheduler[failedQueue].Unacked != 1 {
|
|
t.Fatalf("bad: %#v", stats)
|
|
}
|
|
|
|
// Ack finally
|
|
err = b.Ack(out.ID, token)
|
|
if err != nil {
|
|
t.Fatalf("err: %v", err)
|
|
}
|
|
|
|
if _, ok := b.Outstanding(out.ID); ok {
|
|
t.Fatalf("should not be outstanding")
|
|
}
|
|
|
|
// Check the stats
|
|
stats = b.Stats()
|
|
if stats.TotalReady != 0 {
|
|
t.Fatalf("bad: %#v", stats)
|
|
}
|
|
if stats.TotalUnacked != 0 {
|
|
t.Fatalf("bad: %#v", stats)
|
|
}
|
|
if stats.ByScheduler[failedQueue].Ready != 0 {
|
|
t.Fatalf("bad: %#v", stats.ByScheduler[failedQueue])
|
|
}
|
|
if stats.ByScheduler[failedQueue].Unacked != 0 {
|
|
t.Fatalf("bad: %#v", stats.ByScheduler[failedQueue])
|
|
}
|
|
}
|
|
|
|
// Ensure fairness between schedulers
|
|
func TestEvalBroker_Wait(t *testing.T) {
|
|
b := testBroker(t, 0)
|
|
b.SetEnabled(true)
|
|
|
|
// Create an eval that should wait
|
|
eval := mock.Eval()
|
|
eval.Wait = 10 * time.Millisecond
|
|
err := b.Enqueue(eval)
|
|
if err != nil {
|
|
t.Fatalf("err: %v", err)
|
|
}
|
|
|
|
// Verify waiting
|
|
stats := b.Stats()
|
|
if stats.TotalReady != 0 {
|
|
t.Fatalf("bad: %#v", stats)
|
|
}
|
|
if stats.TotalWaiting != 1 {
|
|
t.Fatalf("bad: %#v", stats)
|
|
}
|
|
|
|
// Let the wait elapse
|
|
time.Sleep(15 * time.Millisecond)
|
|
|
|
// Verify ready
|
|
stats = b.Stats()
|
|
if stats.TotalReady != 1 {
|
|
t.Fatalf("bad: %#v", stats)
|
|
}
|
|
if stats.TotalWaiting != 0 {
|
|
t.Fatalf("bad: %#v", stats)
|
|
}
|
|
|
|
// Dequeue should work
|
|
out, _, err := b.Dequeue(defaultSched, time.Second)
|
|
if err != nil {
|
|
t.Fatalf("err: %v", err)
|
|
}
|
|
if out != eval {
|
|
t.Fatalf("bad : %#v", out)
|
|
}
|
|
}
|