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mirror of https://github.com/open-telemetry/opentelemetry-go.git synced 2025-01-12 02:28:07 +02:00
opentelemetry-go/sdk/metric/export/metric_test.go
Tyler Yahn a8ea3dbb46
Replace use of old term label with attribute (#2790)
* Replace use of old term label with attribute

The specification has unified on the term attribute to describe
key-value pairs. There exist still many hold-overs of the use of the
term label. This updates those uses or deprecates exported types and
functions in favor of renamed forms.

* fix infinite recursion

* Remove backticks from attribute set docs

* Remove LabelFilterSelector entirely

* Remove Metadata.Labels instead of deprecate

* Update changelog with public changes

* Revert OC err msg
2022-04-18 07:31:31 -07:00

72 lines
1.9 KiB
Go

// 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 export
import (
"testing"
"github.com/stretchr/testify/require"
"go.opentelemetry.io/otel/attribute"
)
var testSlice = []attribute.KeyValue{
attribute.String("bar", "baz"),
attribute.Int("foo", 42),
}
func newIter(slice []attribute.KeyValue) attribute.Iterator {
attrs := attribute.NewSet(slice...)
return attrs.Iter()
}
func TestAttributeIterator(t *testing.T) {
iter := newIter(testSlice)
require.Equal(t, 2, iter.Len())
require.True(t, iter.Next())
require.Equal(t, attribute.String("bar", "baz"), iter.Attribute())
idx, kv := iter.IndexedAttribute()
require.Equal(t, 0, idx)
require.Equal(t, attribute.String("bar", "baz"), kv)
require.Equal(t, 2, iter.Len())
require.True(t, iter.Next())
require.Equal(t, attribute.Int("foo", 42), iter.Attribute())
idx, kv = iter.IndexedAttribute()
require.Equal(t, 1, idx)
require.Equal(t, attribute.Int("foo", 42), kv)
require.Equal(t, 2, iter.Len())
require.False(t, iter.Next())
require.Equal(t, 2, iter.Len())
}
func TestEmptyAttributeIterator(t *testing.T) {
iter := newIter(nil)
require.Equal(t, 0, iter.Len())
require.False(t, iter.Next())
}
func TestIteratorToSlice(t *testing.T) {
iter := newIter(testSlice)
got := iter.ToSlice()
require.Equal(t, testSlice, got)
iter = newIter(nil)
got = iter.ToSlice()
require.Nil(t, got)
}