95 lines
2.1 KiB
Go
95 lines
2.1 KiB
Go
package buffer
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import (
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"testing"
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"github.com/influxdata/telegraf"
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"github.com/influxdata/telegraf/testutil"
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"github.com/stretchr/testify/assert"
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)
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var metricList = []telegraf.Metric{
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testutil.TestMetric(2, "mymetric1"),
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testutil.TestMetric(1, "mymetric2"),
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testutil.TestMetric(11, "mymetric3"),
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testutil.TestMetric(15, "mymetric4"),
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testutil.TestMetric(8, "mymetric5"),
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}
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func BenchmarkAddMetrics(b *testing.B) {
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buf := NewBuffer(10000)
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m := testutil.TestMetric(1, "mymetric")
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for n := 0; n < b.N; n++ {
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buf.Add(m)
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}
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}
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func TestNewBufferBasicFuncs(t *testing.T) {
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b := NewBuffer(10)
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assert.True(t, b.IsEmpty())
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assert.Zero(t, b.Len())
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assert.Zero(t, b.Drops())
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assert.Zero(t, b.Total())
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m := testutil.TestMetric(1, "mymetric")
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b.Add(m)
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assert.False(t, b.IsEmpty())
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assert.Equal(t, b.Len(), 1)
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assert.Equal(t, b.Drops(), 0)
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assert.Equal(t, b.Total(), 1)
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b.Add(metricList...)
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assert.False(t, b.IsEmpty())
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assert.Equal(t, b.Len(), 6)
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assert.Equal(t, b.Drops(), 0)
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assert.Equal(t, b.Total(), 6)
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}
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func TestDroppingMetrics(t *testing.T) {
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b := NewBuffer(10)
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// Add up to the size of the buffer
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b.Add(metricList...)
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b.Add(metricList...)
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assert.False(t, b.IsEmpty())
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assert.Equal(t, b.Len(), 10)
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assert.Equal(t, b.Drops(), 0)
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assert.Equal(t, b.Total(), 10)
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// Add 5 more and verify they were dropped
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b.Add(metricList...)
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assert.False(t, b.IsEmpty())
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assert.Equal(t, b.Len(), 10)
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assert.Equal(t, b.Drops(), 5)
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assert.Equal(t, b.Total(), 15)
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}
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func TestGettingBatches(t *testing.T) {
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b := NewBuffer(20)
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// Verify that the buffer returned is smaller than requested when there are
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// not as many items as requested.
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b.Add(metricList...)
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batch := b.Batch(10)
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assert.Len(t, batch, 5)
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// Verify that the buffer is now empty
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assert.True(t, b.IsEmpty())
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assert.Zero(t, b.Len())
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assert.Zero(t, b.Drops())
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assert.Equal(t, b.Total(), 5)
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// Verify that the buffer returned is not more than the size requested
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b.Add(metricList...)
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batch = b.Batch(3)
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assert.Len(t, batch, 3)
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// Verify that buffer is not empty
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assert.False(t, b.IsEmpty())
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assert.Equal(t, b.Len(), 2)
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assert.Equal(t, b.Drops(), 0)
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assert.Equal(t, b.Total(), 10)
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}
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