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Signed-off-by: odubajDT <[email protected]>

processor/groupbyattrsprocessor/processor_test.go

@@ -870,13 +870,17 @@ func TestCompacting(t *testing.T) {
 }
 
 func Test_GetMetricInInstrumentationLibrary(t *testing.T) {
+	// input metric with datapoint
 	m := pmetric.NewMetric()
 	m.SetName("metric")
 	m.SetDescription("description")
 	m.SetUnit("unit")
 	d := m.SetEmptyGauge().DataPoints().AppendEmpty()
 	d.SetDoubleValue(1.0)
 
+	// expected metric without datapoint
+	// the datapoints are not copied to the resulting metric, since
+	// datapoints are moved in between metrics in the processor
 	m2 := pmetric.NewMetric()
 	m2.SetName("metric")
 	m2.SetDescription("description")