1 // Copyright The OpenTelemetry Authors 2 // 3 // Licensed under the Apache License, Version 2.0 (the "License"); 4 // you may not use this file except in compliance with the License. 5 // You may obtain a copy of the License at 6 // 7 // http://www.apache.org/licenses/LICENSE-2.0 8 // 9 // Unless required by applicable law or agreed to in writing, software 10 // distributed under the License is distributed on an "AS IS" BASIS, 11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 // See the License for the specific language governing permissions and 13 // limitations under the License. 14 15 package global 16 17 import ( 18 "sync" 19 "testing" 20 ) 21 22 // ResetForTest configures the test to restores the initial global state during 23 // its Cleanup step. 24 func ResetForTest(t testing.TB) { 25 t.Cleanup(func() { 26 globalTracer = defaultTracerValue() 27 globalPropagators = defaultPropagatorsValue() 28 globalMeterProvider = defaultMeterProvider() 29 delegateTraceOnce = sync.Once{} 30 delegateTextMapPropagatorOnce = sync.Once{} 31 delegateMeterOnce = sync.Once{} 32 }) 33 } 34