Intent of immediate_always_valid

All 17 exact tests in this concept. Every test is marked by where it enters the hierarchy.

go.temporal.io/ 17 tests
- server/ 17 tests
  - chasm/ 17 tests
    
    lib/ 17 tests
    
    scheduler/ 17 tests
    
    TestProcessBufferTask_Validate/ 5 tests
    
    go.temporal.io/server/chasm/lib/scheduler/TestProcessBufferTask_Validate/immediate_always_valid Introduced here
    
    go.temporal.io/server/chasm/lib/scheduler/TestProcessBufferTask_Validate/nil_LPT_always_valid Inherited util.go ×1
    
    go.temporal.io/server/chasm/lib/scheduler/TestProcessBufferTask_Validate/scheduled_after_LPT_is_valid Inherited scheduled_after_LPT_is_valid
    
    go.temporal.io/server/chasm/lib/scheduler/TestProcessBufferTask_Validate/scheduled_before_LPT_is_stale Inherited invoker_tasks.go ×1
    
    go.temporal.io/server/chasm/lib/scheduler/TestProcessBufferTask_Validate/scheduled_equal_to_LPT_is_stale Inherited invoker_tasks.go ×1
    
    go.temporal.io/server/chasm/lib/scheduler/TestBackfillTask_CompleteFill Inherited TestBackfillTask_CompleteFill
    
    go.temporal.io/server/chasm/lib/scheduler/TestBackfillTask_InclusiveStartEnd Inherited TestBackfillTask_InclusiveStartEnd
    
    go.temporal.io/server/chasm/lib/scheduler/TestBackfillTask_PartialFill Inherited backfiller_tasks.go ×4
    
    go.temporal.io/server/chasm/lib/scheduler/TestBackfillTask_TriggerImmediate Inherited backfiller_tasks.go ×2
    
    go.temporal.io/server/chasm/lib/scheduler/TestExecuteTask_BackoffUsesFrameworkClock Inherited TestExecuteTask_BackoffUsesFrameworkClock
    
    go.temporal.io/server/chasm/lib/scheduler/TestExecuteTask_RetryableFailure Inherited TestExecuteTask_RetryableFailure
    
    go.temporal.io/server/chasm/lib/scheduler/TestGeneratorTask_ExecuteBufferTask_Basic Inherited TestGeneratorTask_ExecuteBufferTask_Basic
    
    go.temporal.io/server/chasm/lib/scheduler/TestProcessBufferTask_BackingOff Inherited TestProcessBufferTask_BackingOff
    
    go.temporal.io/server/chasm/lib/scheduler/TestProcessBufferTask_RearmsBackedOffRetry Inherited TestProcessBufferTask_RearmsBackedOffRetry
    
    go.temporal.io/server/chasm/lib/scheduler/TestScheduleBackfillerTask_ConsistentLabels Inherited TestScheduleBackfillerTask_ConsistentLabels
    
    go.temporal.io/server/chasm/lib/scheduler/TestScheduleInvokerProcessBufferTask_ConsistentLabels Inherited TestScheduleInvokerProcessBufferTask_ConsistentLabels
    
    go.temporal.io/server/chasm/lib/scheduler/TestUnpause_ResumesProcessing Inherited scheduler.go ×9