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metrics_test.go
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metrics_test.go
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// Copyright The OpenTelemetry Authors
// SPDX-License-Identifier: Apache-2.0
package routingconnector // import "github.com/open-telemetry/opentelemetry-collector-contrib/connector/routingconnector"
import (
"context"
"testing"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
"go.opentelemetry.io/collector/component"
"go.opentelemetry.io/collector/component/componenttest"
"go.opentelemetry.io/collector/connector"
"go.opentelemetry.io/collector/connector/connectortest"
"go.opentelemetry.io/collector/consumer"
"go.opentelemetry.io/collector/consumer/consumertest"
"go.opentelemetry.io/collector/pdata/pmetric"
)
func TestMetricsRegisterConsumersForValidRoute(t *testing.T) {
metricsDefault := component.NewIDWithName(component.DataTypeMetrics, "default")
metrics0 := component.NewIDWithName(component.DataTypeMetrics, "0")
metrics1 := component.NewIDWithName(component.DataTypeMetrics, "1")
cfg := &Config{
DefaultPipelines: []component.ID{metricsDefault},
Table: []RoutingTableItem{
{
Statement: `route() where attributes["X-Tenant"] == "acme"`,
Pipelines: []component.ID{metrics0},
},
{
Statement: `route() where attributes["X-Tenant"] == "*"`,
Pipelines: []component.ID{metrics0, metrics1},
},
},
}
require.NoError(t, cfg.Validate())
var defaultSink, sink0, sink1 consumertest.MetricsSink
router := connector.NewMetricsRouter(map[component.ID]consumer.Metrics{
metricsDefault: &defaultSink,
metrics0: &sink0,
metrics1: &sink1,
})
conn, err := NewFactory().CreateMetricsToMetrics(context.Background(),
connectortest.NewNopCreateSettings(), cfg, router.(consumer.Metrics))
require.NoError(t, err)
require.NotNil(t, conn)
assert.False(t, conn.Capabilities().MutatesData)
rtConn := conn.(*metricsConnector)
require.NoError(t, err)
require.Same(t, &defaultSink, rtConn.router.defaultConsumer)
route, ok := rtConn.router.routes[rtConn.router.table[0].Statement]
assert.True(t, ok)
require.Same(t, &sink0, route.consumer)
route, ok = rtConn.router.routes[rtConn.router.table[1].Statement]
assert.True(t, ok)
routeConsumer, err := router.Consumer(metrics0, metrics1)
require.NoError(t, err)
require.Equal(t, routeConsumer, route.consumer)
require.NoError(t, conn.Start(context.Background(), componenttest.NewNopHost()))
defer func() {
assert.NoError(t, conn.Shutdown(context.Background()))
}()
}
func TestMetricsAreCorrectlySplitPerResourceAttributeWithOTTL(t *testing.T) {
metricsDefault := component.NewIDWithName(component.DataTypeMetrics, "default")
metrics0 := component.NewIDWithName(component.DataTypeMetrics, "0")
metrics1 := component.NewIDWithName(component.DataTypeMetrics, "1")
cfg := &Config{
DefaultPipelines: []component.ID{metricsDefault},
Table: []RoutingTableItem{
{
Statement: `route() where attributes["value"] > 2.5`,
Pipelines: []component.ID{metrics0},
},
{
Statement: `route() where attributes["value"] > 3.0`,
Pipelines: []component.ID{metrics1},
},
{
Statement: `route() where attributes["value"] == 1.0`,
Pipelines: []component.ID{metricsDefault, metrics0},
},
},
}
var defaultSink, sink0, sink1 consumertest.MetricsSink
router := connector.NewMetricsRouter(map[component.ID]consumer.Metrics{
metricsDefault: &defaultSink,
metrics0: &sink0,
metrics1: &sink1,
})
resetSinks := func() {
defaultSink.Reset()
sink0.Reset()
sink1.Reset()
}
factory := NewFactory()
conn, err := factory.CreateMetricsToMetrics(
context.Background(),
connectortest.NewNopCreateSettings(),
cfg,
router.(consumer.Metrics),
)
require.NoError(t, err)
require.NotNil(t, conn)
require.NoError(t, conn.Start(context.Background(), componenttest.NewNopHost()))
defer func() {
assert.NoError(t, conn.Shutdown(context.Background()))
}()
t.Run("metric matched by no expressions", func(t *testing.T) {
resetSinks()
m := pmetric.NewMetrics()
rm := m.ResourceMetrics().AppendEmpty()
rm.Resource().Attributes().PutDouble("value", 0.0)
metric := rm.ScopeMetrics().AppendEmpty().Metrics().AppendEmpty()
metric.SetEmptyGauge()
metric.SetName("cpu")
require.NoError(t, conn.ConsumeMetrics(context.Background(), m))
assert.Len(t, defaultSink.AllMetrics(), 1)
assert.Len(t, sink0.AllMetrics(), 0)
assert.Len(t, sink1.AllMetrics(), 0)
})
t.Run("metric matched by one of two expressions", func(t *testing.T) {
resetSinks()
m := pmetric.NewMetrics()
rm := m.ResourceMetrics().AppendEmpty()
rm.Resource().Attributes().PutDouble("value", 2.7)
metric := rm.ScopeMetrics().AppendEmpty().Metrics().AppendEmpty()
metric.SetEmptyGauge()
metric.SetName("cpu")
require.NoError(t, conn.ConsumeMetrics(context.Background(), m))
assert.Len(t, defaultSink.AllMetrics(), 0)
assert.Len(t, sink0.AllMetrics(), 1)
assert.Len(t, sink1.AllMetrics(), 0)
})
t.Run("metric matched by two expressions", func(t *testing.T) {
resetSinks()
m := pmetric.NewMetrics()
rm := m.ResourceMetrics().AppendEmpty()
rm.Resource().Attributes().PutDouble("value", 5.0)
metric := rm.ScopeMetrics().AppendEmpty().Metrics().AppendEmpty()
metric.SetEmptyGauge()
metric.SetName("cpu")
rm = m.ResourceMetrics().AppendEmpty()
rm.Resource().Attributes().PutDouble("value", 3.1)
metric = rm.ScopeMetrics().AppendEmpty().Metrics().AppendEmpty()
metric.SetEmptyGauge()
metric.SetName("cpu1")
require.NoError(t, conn.ConsumeMetrics(context.Background(), m))
assert.Len(t, defaultSink.AllMetrics(), 0)
assert.Len(t, sink0.AllMetrics(), 1)
assert.Len(t, sink1.AllMetrics(), 1)
assert.Equal(t, sink0.AllMetrics()[0].MetricCount(), 2)
assert.Equal(t, sink1.AllMetrics()[0].MetricCount(), 2)
assert.Equal(t, sink0.AllMetrics(), sink1.AllMetrics())
})
t.Run("one metric matched by 2 expressions, others matched by none", func(t *testing.T) {
resetSinks()
m := pmetric.NewMetrics()
rm := m.ResourceMetrics().AppendEmpty()
rm.Resource().Attributes().PutDouble("value", 5.0)
metric := rm.ScopeMetrics().AppendEmpty().Metrics().AppendEmpty()
metric.SetEmptyGauge()
metric.SetName("cpu")
rm = m.ResourceMetrics().AppendEmpty()
rm.Resource().Attributes().PutDouble("value", -1.0)
metric = rm.ScopeMetrics().AppendEmpty().Metrics().AppendEmpty()
metric.SetEmptyGauge()
metric.SetName("cpu1")
require.NoError(t, conn.ConsumeMetrics(context.Background(), m))
assert.Len(t, defaultSink.AllMetrics(), 1)
assert.Len(t, sink0.AllMetrics(), 1)
assert.Len(t, sink1.AllMetrics(), 1)
assert.Equal(t, sink0.AllMetrics(), sink1.AllMetrics())
rmetric := defaultSink.AllMetrics()[0].ResourceMetrics().At(0)
attr, ok := rmetric.Resource().Attributes().Get("value")
assert.True(t, ok, "routing attribute must exist")
assert.Equal(t, attr.Double(), float64(-1.0))
})
t.Run("metric matched by one expression, multiple pipelines", func(t *testing.T) {
resetSinks()
m := pmetric.NewMetrics()
rm := m.ResourceMetrics().AppendEmpty()
rm.Resource().Attributes().PutDouble("value", 1.0)
metric := rm.ScopeMetrics().AppendEmpty().Metrics().AppendEmpty()
metric.SetEmptyGauge()
metric.SetName("cpu")
require.NoError(t, conn.ConsumeMetrics(context.Background(), m))
assert.Len(t, defaultSink.AllMetrics(), 1)
assert.Len(t, sink0.AllMetrics(), 1)
assert.Len(t, sink1.AllMetrics(), 0)
assert.Equal(t, defaultSink.AllMetrics()[0].MetricCount(), 1)
assert.Equal(t, sink0.AllMetrics()[0].MetricCount(), 1)
assert.Equal(t, defaultSink.AllMetrics(), sink0.AllMetrics())
})
}
func TestMetricsAreCorrectlyMatchOnceWithOTTL(t *testing.T) {
metricsDefault := component.NewIDWithName(component.DataTypeMetrics, "default")
metrics0 := component.NewIDWithName(component.DataTypeMetrics, "0")
metrics1 := component.NewIDWithName(component.DataTypeMetrics, "1")
cfg := &Config{
DefaultPipelines: []component.ID{metricsDefault},
Table: []RoutingTableItem{
{
Statement: `route() where attributes["value"] > 2.5`,
Pipelines: []component.ID{metrics0},
},
{
Statement: `route() where attributes["value"] > 3.0`,
Pipelines: []component.ID{metrics1},
},
{
Statement: `route() where attributes["value"] == 1.0`,
Pipelines: []component.ID{metricsDefault, metrics0},
},
},
MatchOnce: true,
}
var defaultSink, sink0, sink1 consumertest.MetricsSink
router := connector.NewMetricsRouter(map[component.ID]consumer.Metrics{
metricsDefault: &defaultSink,
metrics0: &sink0,
metrics1: &sink1,
})
resetSinks := func() {
defaultSink.Reset()
sink0.Reset()
sink1.Reset()
}
factory := NewFactory()
conn, err := factory.CreateMetricsToMetrics(
context.Background(),
connectortest.NewNopCreateSettings(),
cfg,
router.(consumer.Metrics),
)
require.NoError(t, err)
require.NotNil(t, conn)
require.NoError(t, conn.Start(context.Background(), componenttest.NewNopHost()))
defer func() {
assert.NoError(t, conn.Shutdown(context.Background()))
}()
t.Run("metric matched by no expressions", func(t *testing.T) {
resetSinks()
m := pmetric.NewMetrics()
rm := m.ResourceMetrics().AppendEmpty()
rm.Resource().Attributes().PutDouble("value", 0.0)
metric := rm.ScopeMetrics().AppendEmpty().Metrics().AppendEmpty()
metric.SetEmptyGauge()
metric.SetName("cpu")
require.NoError(t, conn.ConsumeMetrics(context.Background(), m))
assert.Len(t, defaultSink.AllMetrics(), 1)
assert.Len(t, sink0.AllMetrics(), 0)
assert.Len(t, sink1.AllMetrics(), 0)
})
t.Run("metric matched by one of two expressions", func(t *testing.T) {
resetSinks()
m := pmetric.NewMetrics()
rm := m.ResourceMetrics().AppendEmpty()
rm.Resource().Attributes().PutDouble("value", 2.7)
metric := rm.ScopeMetrics().AppendEmpty().Metrics().AppendEmpty()
metric.SetEmptyGauge()
metric.SetName("cpu")
require.NoError(t, conn.ConsumeMetrics(context.Background(), m))
assert.Len(t, defaultSink.AllMetrics(), 0)
assert.Len(t, sink0.AllMetrics(), 1)
assert.Len(t, sink1.AllMetrics(), 0)
})
t.Run("metric matched by two expressions, but sinks to one", func(t *testing.T) {
resetSinks()
m := pmetric.NewMetrics()
rm := m.ResourceMetrics().AppendEmpty()
rm.Resource().Attributes().PutDouble("value", 5.0)
metric := rm.ScopeMetrics().AppendEmpty().Metrics().AppendEmpty()
metric.SetEmptyGauge()
metric.SetName("cpu")
rm = m.ResourceMetrics().AppendEmpty()
rm.Resource().Attributes().PutDouble("value", 3.1)
metric = rm.ScopeMetrics().AppendEmpty().Metrics().AppendEmpty()
metric.SetEmptyGauge()
metric.SetName("cpu1")
require.NoError(t, conn.ConsumeMetrics(context.Background(), m))
assert.Len(t, defaultSink.AllMetrics(), 0)
assert.Len(t, sink0.AllMetrics(), 1)
assert.Len(t, sink1.AllMetrics(), 0)
assert.Equal(t, sink0.AllMetrics()[0].MetricCount(), 2)
})
t.Run("one metric matched by 2 expressions, others matched by none", func(t *testing.T) {
resetSinks()
m := pmetric.NewMetrics()
rm := m.ResourceMetrics().AppendEmpty()
rm.Resource().Attributes().PutDouble("value", 5.0)
metric := rm.ScopeMetrics().AppendEmpty().Metrics().AppendEmpty()
metric.SetEmptyGauge()
metric.SetName("cpu")
rm = m.ResourceMetrics().AppendEmpty()
rm.Resource().Attributes().PutDouble("value", -1.0)
metric = rm.ScopeMetrics().AppendEmpty().Metrics().AppendEmpty()
metric.SetEmptyGauge()
metric.SetName("cpu1")
require.NoError(t, conn.ConsumeMetrics(context.Background(), m))
assert.Len(t, defaultSink.AllMetrics(), 1)
assert.Len(t, sink0.AllMetrics(), 1)
assert.Len(t, sink1.AllMetrics(), 0)
rmetric := defaultSink.AllMetrics()[0].ResourceMetrics().At(0)
attr, ok := rmetric.Resource().Attributes().Get("value")
assert.True(t, ok, "routing attribute must exist")
assert.Equal(t, attr.Double(), float64(-1.0))
})
t.Run("metric matched by one expression, multiple pipelines", func(t *testing.T) {
resetSinks()
m := pmetric.NewMetrics()
rm := m.ResourceMetrics().AppendEmpty()
rm.Resource().Attributes().PutDouble("value", 1.0)
metric := rm.ScopeMetrics().AppendEmpty().Metrics().AppendEmpty()
metric.SetEmptyGauge()
metric.SetName("cpu")
require.NoError(t, conn.ConsumeMetrics(context.Background(), m))
assert.Len(t, defaultSink.AllMetrics(), 1)
assert.Len(t, sink0.AllMetrics(), 1)
assert.Len(t, sink1.AllMetrics(), 0)
assert.Equal(t, defaultSink.AllMetrics()[0].MetricCount(), 1)
assert.Equal(t, sink0.AllMetrics()[0].MetricCount(), 1)
assert.Equal(t, defaultSink.AllMetrics(), sink0.AllMetrics())
})
}
func TestMetricsResourceAttributeDroppedByOTTL(t *testing.T) {
metricsDefault := component.NewIDWithName(component.DataTypeMetrics, "default")
metricsOther := component.NewIDWithName(component.DataTypeMetrics, "other")
cfg := &Config{
DefaultPipelines: []component.ID{metricsDefault},
Table: []RoutingTableItem{
{
Statement: `delete_key(attributes, "X-Tenant") where attributes["X-Tenant"] == "acme"`,
Pipelines: []component.ID{metricsOther},
},
},
}
var sink0, sink1 consumertest.MetricsSink
router := connector.NewMetricsRouter(map[component.ID]consumer.Metrics{
metricsDefault: &sink0,
metricsOther: &sink1,
})
factory := NewFactory()
conn, err := factory.CreateMetricsToMetrics(
context.Background(),
connectortest.NewNopCreateSettings(),
cfg,
router.(consumer.Metrics),
)
require.NoError(t, err)
require.NotNil(t, conn)
require.NoError(t, conn.Start(context.Background(), componenttest.NewNopHost()))
defer func() {
assert.NoError(t, conn.Shutdown(context.Background()))
}()
m := pmetric.NewMetrics()
rm := m.ResourceMetrics().AppendEmpty()
rm.Resource().Attributes().PutStr("X-Tenant", "acme")
rm.Resource().Attributes().PutStr("attr", "acme")
assert.NoError(t, conn.ConsumeMetrics(context.Background(), m))
metrics := sink1.AllMetrics()
require.Len(t, metrics, 1, "metric should be routed to non default exporter")
require.Equal(t, 1, metrics[0].ResourceMetrics().Len())
attrs := metrics[0].ResourceMetrics().At(0).Resource().Attributes()
_, ok := attrs.Get("X-Tenant")
assert.False(t, ok, "routing attribute should have been dropped")
v, ok := attrs.Get("attr")
assert.True(t, ok, "non routing attributes shouldn't be dropped")
assert.Equal(t, "acme", v.Str())
require.Len(t, sink0.AllMetrics(), 0,
"metrics should not be routed to default pipeline",
)
}
func TestMetricsConnectorCapabilities(t *testing.T) {
metricsDefault := component.NewIDWithName(component.DataTypeMetrics, "default")
metricsOther := component.NewIDWithName(component.DataTypeMetrics, "other")
cfg := &Config{
Table: []RoutingTableItem{{
Statement: `route() where attributes["X-Tenant"] == "acme"`,
Pipelines: []component.ID{metricsOther},
}},
}
router := connector.NewMetricsRouter(map[component.ID]consumer.Metrics{
metricsDefault: consumertest.NewNop(),
metricsOther: consumertest.NewNop(),
})
factory := NewFactory()
conn, err := factory.CreateMetricsToMetrics(
context.Background(),
connectortest.NewNopCreateSettings(),
cfg,
router.(consumer.Metrics),
)
require.NoError(t, err)
assert.Equal(t, false, conn.Capabilities().MutatesData)
}