blob: e85b1c40c3db51dc6114f302334fcb6578c791b8 [file] [log] [blame]
// Copyright 2018, OpenCensus 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 tag
import (
"context"
"testing"
)
func TestExtractTagsAttachment(t *testing.T) {
// We can't depend on the stats of view package without creating a
// dependency cycle.
var m map[string]string
ctx := context.Background()
res := extractTagsAttachments(ctx, m)
if res != nil {
t.Fatalf("res = %v; want nil", res)
}
k, _ := NewKey("test")
ctx, _ = New(ctx, Insert(k, "test123"))
res = extractTagsAttachments(ctx, m)
if res == nil {
t.Fatal("res = nil")
}
if got, want := res["tag:test"], "test123"; got != want {
t.Fatalf("res[Tags:test] = %v; want %v", got, want)
}
}