/
confg_test.go
111 lines (100 loc) · 2.82 KB
/
confg_test.go
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// Copyright The OpenTelemetry Authors
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package prometheus // import "go.opentelemetry.io/otel/exporters/prometheus"
import (
"testing"
"github.com/prometheus/client_golang/prometheus"
"github.com/stretchr/testify/assert"
"go.opentelemetry.io/otel/sdk/metric"
"go.opentelemetry.io/otel/sdk/metric/aggregation"
"go.opentelemetry.io/otel/sdk/metric/view"
)
func TestNewConfig(t *testing.T) {
registry := prometheus.NewRegistry()
aggregationSelector := func(view.InstrumentKind) aggregation.Aggregation { return nil }
testCases := []struct {
name string
options []Option
wantRegisterer prometheus.Registerer
wantAggregation metric.AggregationSelector
}{
{
name: "Default",
options: nil,
wantRegisterer: prometheus.DefaultRegisterer,
},
{
name: "WithRegisterer",
options: []Option{
WithRegisterer(registry),
},
wantRegisterer: registry,
},
{
name: "WithAggregationSelector",
options: []Option{
WithAggregationSelector(aggregationSelector),
},
wantRegisterer: prometheus.DefaultRegisterer,
wantAggregation: aggregationSelector,
},
{
name: "With Multiple Options",
options: []Option{
WithRegisterer(registry),
WithAggregationSelector(aggregationSelector),
},
wantRegisterer: registry,
wantAggregation: aggregationSelector,
},
{
name: "nil options do nothing",
options: []Option{
WithRegisterer(nil),
},
wantRegisterer: prometheus.DefaultRegisterer,
},
}
for _, tt := range testCases {
t.Run(tt.name, func(t *testing.T) {
cfg := newConfig(tt.options...)
assert.Equal(t, tt.wantRegisterer, cfg.registerer)
})
}
}
func TestConfigManualReaderOptions(t *testing.T) {
aggregationSelector := func(view.InstrumentKind) aggregation.Aggregation { return nil }
testCases := []struct {
name string
config config
wantOptionCount int
}{
{
name: "Default",
config: config{},
wantOptionCount: 0,
},
{
name: "WithAggregationSelector",
config: config{aggregation: aggregationSelector},
wantOptionCount: 1,
},
}
for _, tt := range testCases {
t.Run(tt.name, func(t *testing.T) {
opts := tt.config.manualReaderOptions()
assert.Len(t, opts, tt.wantOptionCount)
})
}
}