istio.io/istio@v0.0.0-20240520182934-d79c90f27776/pkg/test/framework/components/echo/checker.go (about)

     1  //  Copyright Istio 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 echo
    16  
    17  var noChecker Checker = func(_ CallResult, err error) error {
    18  	return err
    19  }
    20  
    21  // Checker inspects echo call results for errors.
    22  type Checker func(CallResult, error) error
    23  
    24  func (c Checker) Check(result CallResult, err error) error {
    25  	return c(result, err)
    26  }
    27  
    28  // NoChecker provides a Checker that returns the original raw call error, unaltered.
    29  func NoChecker() Checker {
    30  	return noChecker
    31  }