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promql.Engine.Close: No-op if nil (#14861)

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Signed-off-by: Arve Knudsen <arve.knudsen@gmail.com>
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Arve Knudsen 2024-09-08 14:39:13 +02:00 committed by GitHub
parent 9f57f14d6c
commit db5e48dc33
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2 changed files with 27 additions and 0 deletions
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4
promql/engine.go
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@ -435,6 +435,10 @@ func NewEngine(opts EngineOpts) *Engine {
// Close closes ng.
func (ng *Engine) Close() error {
if ng == nil {
return nil
}
if ng.activeQueryTracker != nil {
return ng.activeQueryTracker.Close()
}

23
promql/engine_test.go
View file

@ -3019,6 +3019,29 @@ func TestEngineOptsValidation(t *testing.T) {
}
}
func TestEngine_Close(t *testing.T) {
t.Run("nil engine", func(t *testing.T) {
var ng *promql.Engine
require.NoError(t, ng.Close())
})
t.Run("non-nil engine", func(t *testing.T) {
ng := promql.NewEngine(promql.EngineOpts{
Logger: nil,
Reg: nil,
MaxSamples: 0,
Timeout: 100 * time.Second,
NoStepSubqueryIntervalFn: nil,
EnableAtModifier: true,
EnableNegativeOffset: true,
EnablePerStepStats: false,
LookbackDelta: 0,
EnableDelayedNameRemoval: true,
})
require.NoError(t, ng.Close())
})
}
func TestInstantQueryWithRangeVectorSelector(t *testing.T) {
engine := newTestEngine(t)