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package handlers
import (
"strings"
"testing"
"github.com/mimecast/dtail/internal/mapr"
maprclient "github.com/mimecast/dtail/internal/mapr/client"
"github.com/mimecast/dtail/internal/protocol"
)
func TestMaprHandlerShutdownFlushesPendingAggregateState(t *testing.T) {
query, err := mapr.NewQuery("select status,count(status) from stats group by status")
if err != nil {
t.Fatalf("NewQuery() error = %v", err)
}
session := maprclient.NewSessionState(query)
handler := NewMaprHandler("srv1", session)
countStorage := handlerCountStorage(t, query)
message := strings.Join([]string{
"ERROR",
"2",
countStorage + protocol.AggregateKVDelimiter + "2",
"",
}, protocol.AggregateDelimiter)
if err := handler.aggregate.Aggregate(message); err != nil {
t.Fatalf("Aggregate() error = %v", err)
}
handler.Shutdown()
result, numRows, err := session.Snapshot().GlobalGroup.Result(query, 10, nil)
if err != nil {
t.Fatalf("Result() error = %v", err)
}
if numRows != 1 {
t.Fatalf("numRows = %d, want 1", numRows)
}
if !strings.Contains(result, "2") {
t.Fatalf("expected flushed aggregate row, got %q", result)
}
}
func handlerCountStorage(t *testing.T, query *mapr.Query) string {
t.Helper()
for _, selectCondition := range query.Select {
if selectCondition.Operation == mapr.Count {
return selectCondition.FieldStorage
}
}
t.Fatalf("query %q does not contain count() storage", query.RawQuery)
return ""
}
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