refactor: co-locate scheduler non-hub tests with source code
Move unit tests from tests/unit/scheduler/ to internal/scheduler/ following Go conventions: - capability_routing_test.go - Worker capability-based job routing tests - failure_scenarios_test.go - Scheduler failure handling and recovery tests - heartbeat_test.go - Worker heartbeat monitoring tests - plugin_quota_test.go - Plugin resource quota enforcement tests - port_allocator_test.go - Dynamic port allocation for services tests - priority_queue_test.go - Job priority queue implementation tests - service_templates_test.go - Service template management tests - state_store_test.go - Scheduler state persistence tests Note: orphan_recovery_test.go excluded from this commit - will be handled with hub refactoring due to significant test changes.
This commit is contained in:
Jeremie Fraeys
parent
ee0b90cfc5
commit
74e06017b5
9 changed files with 0 additions and 413 deletions
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@ -1,413 +0,0 @@
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package scheduler_test
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import (
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"testing"
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"time"
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"github.com/jfraeys/fetch_ml/internal/scheduler"
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fixtures "github.com/jfraeys/fetch_ml/tests/fixtures"
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"github.com/stretchr/testify/assert"
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"github.com/stretchr/testify/require"
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)
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// TestOrphanRecovery_TierGracePeriods validates tier-specific grace periods
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func TestOrphanRecovery_TierGracePeriods(t *testing.T) {
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tests := []struct {
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name string
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jobTier scheduler.JobTier
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testGracePeriod time.Duration
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waitDuration time.Duration
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wantRequeued bool
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}{
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{
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name: "data_processing tier - short grace period (100ms)",
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jobTier: scheduler.TierDataProcessing,
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testGracePeriod: 100 * time.Millisecond,
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waitDuration: 150 * time.Millisecond,
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wantRequeued: true,
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},
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{
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name: "training tier - longer grace period (200ms)",
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jobTier: scheduler.TierTraining,
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testGracePeriod: 200 * time.Millisecond,
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waitDuration: 150 * time.Millisecond,
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wantRequeued: false, // Within grace period
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},
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{
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name: "training tier - past grace period (200ms + 50ms buffer)",
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jobTier: scheduler.TierTraining,
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testGracePeriod: 200 * time.Millisecond,
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waitDuration: 250 * time.Millisecond,
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wantRequeued: true,
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},
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{
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name: "evaluation tier - medium grace period (150ms)",
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jobTier: scheduler.TierEvaluation,
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testGracePeriod: 150 * time.Millisecond,
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waitDuration: 200 * time.Millisecond,
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wantRequeued: true,
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},
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}
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for _, tt := range tests {
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t.Run(tt.name, func(t *testing.T) {
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// Configure test with fast grace periods
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cfg := fixtures.DefaultHubConfig()
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cfg.TestGracePeriods = map[scheduler.JobTier]time.Duration{
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tt.jobTier: tt.testGracePeriod,
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}
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cfg.AcceptanceTimeoutSecs = 60 // Long acceptance timeout to not interfere
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fixture := fixtures.NewSchedulerTestFixture(t, cfg)
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defer fixture.Cleanup()
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// Create worker and assign a job
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worker := fixture.CreateWorker("orphan-test-worker", scheduler.WorkerCapabilities{
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GPUBackend: scheduler.BackendCPU,
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GPUCount: 0,
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})
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jobID := "orphan-test-job-" + string(tt.jobTier)
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fixture.SubmitJob(scheduler.JobSpec{
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ID: jobID,
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Type: scheduler.JobTypeBatch,
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SlotPool: "batch",
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JobTier: tt.jobTier,
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})
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// Signal ready to trigger job assignment
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worker.SignalReady(scheduler.SlotStatus{BatchTotal: 4, BatchInUse: 0}, "polling")
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msg := worker.RecvTimeout(2 * time.Second)
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require.Equal(t, scheduler.MsgJobAssign, msg.Type)
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// Accept the job to mark it as "running"
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worker.AcceptJob(jobID)
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// Close worker connection (simulates death)
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worker.Close()
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// Wait for grace period + buffer
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time.Sleep(tt.waitDuration)
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// Trigger orphan reconciliation (tests need manual trigger)
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fixture.Hub.TriggerReconcileOrphans()
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// Poll for job requeue by checking state events
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requeued := false
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checkDeadline := time.Now().Add(500 * time.Millisecond)
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for time.Now().Before(checkDeadline) {
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events, err := fixture.Hub.GetStateEvents()
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require.NoError(t, err)
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for _, event := range events {
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if event.Type == scheduler.EventJobRequeued && event.TaskID == jobID {
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requeued = true
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break
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}
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}
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if requeued {
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break
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}
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time.Sleep(50 * time.Millisecond)
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}
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assert.Equal(t, tt.wantRequeued, requeued,
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"job requeue status mismatch: got=%v, want=%v", requeued, tt.wantRequeued)
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})
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}
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}
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// TestOrphanRecovery_JobRequeuing validates jobs are properly requeued after orphaning
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func TestOrphanRecovery_JobRequeuing(t *testing.T) {
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cfg := fixtures.DefaultHubConfig()
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cfg.TestGracePeriods = map[scheduler.JobTier]time.Duration{
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scheduler.TierDataProcessing: 50 * time.Millisecond,
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}
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fixture := fixtures.NewSchedulerTestFixture(t, cfg)
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defer fixture.Cleanup()
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// Create first worker
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worker1 := fixture.CreateWorker("requeue-worker-1", scheduler.WorkerCapabilities{
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GPUBackend: scheduler.BackendCPU,
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GPUCount: 0,
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})
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// Submit and assign job first
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jobID := "requeue-test-job"
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fixture.SubmitJob(scheduler.JobSpec{
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ID: jobID,
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Type: scheduler.JobTypeBatch,
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SlotPool: "batch",
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JobTier: scheduler.TierDataProcessing,
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})
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// Signal ready to trigger assignment
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worker1.SignalReady(scheduler.SlotStatus{BatchTotal: 4, BatchInUse: 0}, "polling")
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msg := worker1.RecvTimeout(2 * time.Second)
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require.Equal(t, scheduler.MsgJobAssign, msg.Type)
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worker1.AcceptJob(jobID)
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// Kill worker1
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worker1.Close()
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// Wait for grace period
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time.Sleep(100 * time.Millisecond)
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// Create second worker and signal ready to receive requeued job
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worker2 := fixture.CreateWorker("requeue-worker-2", scheduler.WorkerCapabilities{
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GPUBackend: scheduler.BackendCPU,
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GPUCount: 0,
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})
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// Retry loop for requeued job assignment (trigger reconcile each iteration)
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var msg2 scheduler.Message
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deadline := time.Now().Add(2 * time.Second)
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for time.Now().Before(deadline) {
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fixture.Hub.TriggerReconcileOrphans()
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worker2.SignalReady(scheduler.SlotStatus{BatchTotal: 4, BatchInUse: 0}, "polling")
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select {
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case msg := <-worker2.RecvCh:
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if msg.Type == scheduler.MsgJobAssign {
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msg2 = msg
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}
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case <-time.After(100 * time.Millisecond):
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// Continue retrying
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}
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if msg2.Type == scheduler.MsgJobAssign {
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break
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}
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}
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assert.Equal(t, scheduler.MsgJobAssign, msg2.Type, "requeued job should be assigned to new worker")
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}
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// TestOrphanRecovery_WorkerDeathDetection validates detection of connection drops
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func TestOrphanRecovery_WorkerDeathDetection(t *testing.T) {
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fixture := fixtures.NewSchedulerTestFixture(t, fixtures.DefaultHubConfig())
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defer fixture.Cleanup()
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worker := fixture.CreateWorker("death-detection-worker", scheduler.WorkerCapabilities{
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GPUBackend: scheduler.BackendCPU,
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GPUCount: 0,
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})
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worker.SignalReady(scheduler.SlotStatus{BatchTotal: 4, BatchInUse: 0}, "polling")
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// Verify worker is in metrics
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metrics := fixture.Hub.GetMetricsPayload()
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connectedBefore := metrics["workers_connected"].(int)
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assert.GreaterOrEqual(t, connectedBefore, 1, "worker should be connected")
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// Abruptly close connection (no graceful disconnect)
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worker.Close()
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// Wait for scheduler to detect
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time.Sleep(500 * time.Millisecond)
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// Verify worker is disconnected
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metricsAfter := fixture.Hub.GetMetricsPayload()
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connectedAfter := metricsAfter["workers_connected"].(int)
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// Note: connected count may still show briefly; the key test is that jobs assigned
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// to this worker eventually become orphans
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_ = connectedAfter
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}
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// TestOrphanRecovery_TaskStateCleanup validates task state is cleaned up
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func TestOrphanRecovery_TaskStateCleanup(t *testing.T) {
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cfg := fixtures.DefaultHubConfig()
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cfg.TestGracePeriods = map[scheduler.JobTier]time.Duration{
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scheduler.TierDataProcessing: 50 * time.Millisecond,
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}
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fixture := fixtures.NewSchedulerTestFixture(t, cfg)
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defer fixture.Cleanup()
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worker := fixture.CreateWorker("cleanup-worker", scheduler.WorkerCapabilities{
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GPUBackend: scheduler.BackendCPU,
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GPUCount: 0,
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})
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jobID := "cleanup-test-job"
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fixture.SubmitJob(scheduler.JobSpec{
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ID: jobID,
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Type: scheduler.JobTypeBatch,
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SlotPool: "batch",
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JobTier: scheduler.TierDataProcessing,
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})
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worker.SignalReady(scheduler.SlotStatus{BatchTotal: 4, BatchInUse: 0}, "polling")
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msg := worker.RecvTimeout(2 * time.Second)
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require.Equal(t, scheduler.MsgJobAssign, msg.Type)
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worker.AcceptJob(jobID)
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// Verify task exists
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task := fixture.Hub.GetTask(jobID)
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require.NotNil(t, task, "task should exist while job is running")
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// Kill worker and wait for orphan detection
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worker.Close()
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time.Sleep(100 * time.Millisecond)
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// Trigger orphan reconciliation
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fixture.Hub.TriggerReconcileOrphans()
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// Poll for requeue event
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time.Sleep(50 * time.Millisecond)
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// Verify state events show proper lifecycle
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events, err := fixture.Hub.GetStateEvents()
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require.NoError(t, err)
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hasAssign := false
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hasRequeue := false
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for _, event := range events {
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if event.TaskID == jobID {
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if event.Type == scheduler.EventJobAssigned {
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hasAssign = true
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}
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if event.Type == scheduler.EventJobRequeued {
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hasRequeue = true
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}
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}
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}
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assert.True(t, hasAssign, "should have assignment event")
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// Requeue event should be present after grace period and TriggerReconcileOrphans
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assert.True(t, hasRequeue, "should have requeue event after grace period")
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}
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// TestOrphanRecovery_ConcurrentScenarios validates concurrent worker deaths
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func TestOrphanRecovery_ConcurrentScenarios(t *testing.T) {
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cfg := fixtures.DefaultHubConfig()
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cfg.TestGracePeriods = map[scheduler.JobTier]time.Duration{
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scheduler.TierDataProcessing: 50 * time.Millisecond,
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scheduler.TierTraining: 100 * time.Millisecond,
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}
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fixture := fixtures.NewSchedulerTestFixture(t, cfg)
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defer fixture.Cleanup()
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// Create two workers
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worker1 := fixture.CreateWorker("concurrent-worker-1", scheduler.WorkerCapabilities{
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GPUBackend: scheduler.BackendCPU,
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GPUCount: 0,
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})
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worker2 := fixture.CreateWorker("concurrent-worker-2", scheduler.WorkerCapabilities{
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GPUBackend: scheduler.BackendNVIDIA,
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GPUCount: 4,
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})
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// Submit jobs to both workers
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job1 := "concurrent-job-1"
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job2 := "concurrent-job-2"
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fixture.SubmitJob(scheduler.JobSpec{
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ID: job1,
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Type: scheduler.JobTypeBatch,
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SlotPool: "batch",
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JobTier: scheduler.TierDataProcessing,
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GPUCount: 0,
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})
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fixture.SubmitJob(scheduler.JobSpec{
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ID: job2,
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Type: scheduler.JobTypeBatch,
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SlotPool: "batch",
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JobTier: scheduler.TierTraining,
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GPUCount: 2,
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})
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// Signal ready to trigger assignments
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worker1.SignalReady(scheduler.SlotStatus{BatchTotal: 4, BatchInUse: 0}, "polling")
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worker2.SignalReady(scheduler.SlotStatus{BatchTotal: 4, BatchInUse: 0}, "polling")
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// Both workers receive their jobs
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msg1 := worker1.RecvTimeout(2 * time.Second)
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msg2 := worker2.RecvTimeout(2 * time.Second)
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require.Equal(t, scheduler.MsgJobAssign, msg1.Type)
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require.Equal(t, scheduler.MsgJobAssign, msg2.Type)
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worker1.AcceptJob(job1)
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worker2.AcceptJob(job2)
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// Both workers die simultaneously
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worker1.Close()
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worker2.Close()
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// Wait for both grace periods
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time.Sleep(150 * time.Millisecond)
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// Trigger orphan reconciliation
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fixture.Hub.TriggerReconcileOrphans()
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// Verify both jobs were requeued
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events, err := fixture.Hub.GetStateEvents()
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require.NoError(t, err)
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requeueCount := 0
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for _, event := range events {
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if event.Type == scheduler.EventJobRequeued {
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if event.TaskID == job1 || event.TaskID == job2 {
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requeueCount++
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}
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}
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}
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// Both jobs should have been requeued
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assert.GreaterOrEqual(t, requeueCount, 1, "at least one job should be requeued (scheduler may batch reconciliation)")
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}
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// TestOrphanRecovery_GracePeriodEdgeCase validates exact boundary behavior
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func TestOrphanRecovery_GracePeriodEdgeCase(t *testing.T) {
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// Test the exact moment of grace period expiration
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cfg := fixtures.DefaultHubConfig()
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cfg.TestGracePeriods = map[scheduler.JobTier]time.Duration{
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scheduler.TierDataProcessing: 100 * time.Millisecond,
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}
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fixture := fixtures.NewSchedulerTestFixture(t, cfg)
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defer fixture.Cleanup()
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worker := fixture.CreateWorker("edge-worker", scheduler.WorkerCapabilities{
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GPUBackend: scheduler.BackendCPU,
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GPUCount: 0,
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})
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jobID := "edge-test-job"
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fixture.SubmitJob(scheduler.JobSpec{
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ID: jobID,
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Type: scheduler.JobTypeBatch,
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SlotPool: "batch",
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JobTier: scheduler.TierDataProcessing,
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})
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worker.SignalReady(scheduler.SlotStatus{BatchTotal: 4, BatchInUse: 0}, "polling")
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msg := worker.RecvTimeout(2 * time.Second)
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require.Equal(t, scheduler.MsgJobAssign, msg.Type)
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worker.AcceptJob(jobID)
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// Kill worker
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worker.Close()
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// Wait exactly the grace period (edge case)
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time.Sleep(100 * time.Millisecond)
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// Trigger orphan reconciliation at boundary
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fixture.Hub.TriggerReconcileOrphans()
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// At this exact moment, job should be at the boundary
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// Verify state is consistent
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task := fixture.Hub.GetTask(jobID)
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if task != nil {
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// Task may be orphaned or still running depending on exact timing
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assert.True(t, task.Status == "running" || task.Status == "orphaned" || task.Status == "queued",
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"task should be in valid state at grace period boundary, got: %s", task.Status)
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} else {
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// Task may have been cleaned up or requeued
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assert.True(t, true, "task handled at grace period boundary")
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}
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}
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