Adding upstream version 1.34.4.

Signed-off-by: Daniel Baumann <daniel@debian.org>

plugins/common/parallel/parallel_test.go

@@ -0,0 +1,117 @@
+package parallel_test
+
+import (
+	"testing"
+	"time"
+
+	"github.com/stretchr/testify/require"
+
+	"github.com/influxdata/telegraf"
+	"github.com/influxdata/telegraf/metric"
+	"github.com/influxdata/telegraf/plugins/common/parallel"
+	"github.com/influxdata/telegraf/testutil"
+)
+
+func TestOrderedJobsStayOrdered(t *testing.T) {
+	acc := &testutil.Accumulator{}
+
+	p := parallel.NewOrdered(acc, jobFunc, 10000, 10)
+	now := time.Now()
+	for i := 0; i < 20000; i++ {
+		m := metric.New("test",
+			map[string]string{},
+			map[string]interface{}{
+				"val": i,
+			},
+			now,
+		)
+		now = now.Add(1)
+		p.Enqueue(m)
+	}
+	p.Stop()
+
+	i := 0
+	require.Len(t, acc.Metrics, 20000)
+	for _, m := range acc.GetTelegrafMetrics() {
+		v, ok := m.GetField("val")
+		require.True(t, ok)
+		require.EqualValues(t, i, v)
+		i++
+	}
+}
+
+func TestUnorderedJobsDontDropAnyJobs(t *testing.T) {
+	acc := &testutil.Accumulator{}
+
+	p := parallel.NewUnordered(acc, jobFunc, 10)
+
+	now := time.Now()
+
+	expectedTotal := 0
+	for i := 0; i < 20000; i++ {
+		expectedTotal += i
+		m := metric.New("test",
+			map[string]string{},
+			map[string]interface{}{
+				"val": i,
+			},
+			now,
+		)
+		now = now.Add(1)
+		p.Enqueue(m)
+	}
+	p.Stop()
+
+	actualTotal := int64(0)
+	require.Len(t, acc.Metrics, 20000)
+	for _, m := range acc.GetTelegrafMetrics() {
+		v, ok := m.GetField("val")
+		require.True(t, ok)
+		actualTotal += v.(int64)
+	}
+	require.EqualValues(t, expectedTotal, actualTotal)
+}
+
+func BenchmarkOrdered(b *testing.B) {
+	acc := &testutil.Accumulator{}
+
+	p := parallel.NewOrdered(acc, jobFunc, 10000, 10)
+
+	m := metric.New("test",
+		map[string]string{},
+		map[string]interface{}{
+			"val": 1,
+		},
+		time.Now(),
+	)
+
+	b.ResetTimer()
+	for i := 0; i < b.N; i++ {
+		p.Enqueue(m)
+	}
+	p.Stop()
+}
+
+func BenchmarkUnordered(b *testing.B) {
+	acc := &testutil.Accumulator{}
+
+	p := parallel.NewUnordered(acc, jobFunc, 10)
+
+	m := metric.New("test",
+		map[string]string{},
+		map[string]interface{}{
+			"val": 1,
+		},
+		time.Now(),
+	)
+
+	b.ResetTimer()
+	for i := 0; i < b.N; i++ {
+		p.Enqueue(m)
+	}
+	p.Stop()
+}
+
+func jobFunc(m telegraf.Metric) []telegraf.Metric {
+	return []telegraf.Metric{m}
+}