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// Copyright The OpenTelemetry Authors
// SPDX-License-Identifier: Apache-2.0
package otelgrpc
import (
"testing"
"github.com/stretchr/testify/assert"
"google.golang.org/grpc/metadata"
)
func TestMetadataSupplier(t *testing.T) {
md := metadata.New(map[string]string{
"k1": "v1",
})
ms := &metadataSupplier{&md}
v1 := ms.Get("k1")
assert.Equal(t, "v1", v1)
ms.Set("k2", "v2")
v1 = ms.Get("k1")
v2 := ms.Get("k2")
assert.Equal(t, "v1", v1)
assert.Equal(t, "v2", v2)
}
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