github.com/kyma-incubator/compass/components/director@v0.0.0-20230623144113-d764f56ff805/pkg/header/middleware_test.go (about)

     1  /*
     2   * Copyright 2020 The Compass Authors
     3   *
     4   * Licensed under the Apache License, Version 2.0 (the "License");
     5   * you may not use this file except in compliance with the License.
     6   * You may obtain a copy of the License at
     7   *
     8   *     http://www.apache.org/licenses/LICENSE-2.0
     9   *
    10   * Unless required by applicable law or agreed to in writing, software
    11   * distributed under the License is distributed on an "AS IS" BASIS,
    12   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    13   * See the License for the specific language governing permissions and
    14   * limitations under the License.
    15   */
    16  
    17  package header_test
    18  
    19  import (
    20  	"net/http"
    21  	"net/http/httptest"
    22  	"testing"
    23  
    24  	"github.com/kyma-incubator/compass/components/director/pkg/header"
    25  
    26  	"github.com/kyma-incubator/compass/components/director/pkg/correlation"
    27  	"github.com/stretchr/testify/assert"
    28  )
    29  
    30  const expectedRequestID = "123"
    31  
    32  func TestAttachHeadersToContext(t *testing.T) {
    33  	// given
    34  	handler := header.AttachHeadersToContext()
    35  
    36  	t.Run("request headers are persisted in context", func(t *testing.T) {
    37  		nextHandler := http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
    38  			headersFromContext, ok := r.Context().Value(header.ContextKey).(http.Header)
    39  			assert.True(t, ok)
    40  
    41  			actual := headersFromContext.Get(correlation.RequestIDHeaderKey)
    42  			assert.Equal(t, actual, expectedRequestID)
    43  
    44  			headerFromRequest := r.Header.Get(correlation.RequestIDHeaderKey)
    45  			assert.Equal(t, headerFromRequest, expectedRequestID)
    46  		})
    47  
    48  		req := httptest.NewRequest("GET", "/", nil)
    49  		req.Header.Set(correlation.RequestIDHeaderKey, expectedRequestID)
    50  
    51  		handler(nextHandler).ServeHTTP(httptest.NewRecorder(), req)
    52  	})
    53  }