github.com/kyma-project/kyma-environment-broker@v0.0.1/internal/middleware/region_test.go (about)

     1  package middleware_test
     2  
     3  import (
     4  	"context"
     5  	"net/http"
     6  	"net/http/httptest"
     7  	"testing"
     8  
     9  	"github.com/kyma-project/kyma-environment-broker/internal/middleware"
    10  
    11  	"github.com/gorilla/mux"
    12  	"github.com/stretchr/testify/assert"
    13  	"github.com/stretchr/testify/require"
    14  )
    15  
    16  func TestRequestRegionKey(t *testing.T) {
    17  	// given
    18  	const (
    19  		ctxParentKeyA    = "key-A"
    20  		ctxParentValueA  = "value-A"
    21  		fixRequestRegion = "request-region-A"
    22  	)
    23  
    24  	req, err := http.NewRequest(http.MethodGet, "http://url.dev/endpoint/"+fixRequestRegion, nil)
    25  	require.NoError(t, err)
    26  
    27  	parentCtx := context.WithValue(context.Background(), ctxParentKeyA, ctxParentValueA)
    28  	req = req.WithContext(parentCtx)
    29  
    30  	var gotCtx context.Context
    31  	spyHandler := http.HandlerFunc(func(w http.ResponseWriter, req *http.Request) {
    32  		gotCtx = req.Context()
    33  	})
    34  
    35  	router := mux.NewRouter()
    36  	regionMiddleware := middleware.AddRegionToContext("default-region")
    37  	router.Use(regionMiddleware)
    38  	router.Path("/endpoint/{region}").Handler(spyHandler)
    39  
    40  	// when
    41  	router.ServeHTTP(httptest.NewRecorder(), req)
    42  	gotRegion, foundRegion := middleware.RegionFromContext(gotCtx)
    43  
    44  	// then
    45  	assert.Equal(t, ctxParentValueA, gotCtx.Value(ctxParentKeyA))
    46  
    47  	assert.True(t, foundRegion)
    48  	assert.Equal(t, fixRequestRegion, gotRegion)
    49  }
    50  
    51  func TestRequestRegionKeyDefault(t *testing.T) {
    52  	// given
    53  	const (
    54  		ctxParentKeyA    = "key-A"
    55  		ctxParentValueA  = "value-A"
    56  		fixDefaultRegion = "default-region"
    57  	)
    58  
    59  	clientReq, err := http.NewRequest(http.MethodGet, "http://url.dev/endpoint-without-region", nil)
    60  	require.NoError(t, err)
    61  
    62  	parentCtx := context.WithValue(context.Background(), ctxParentKeyA, ctxParentValueA)
    63  	clientReq = clientReq.WithContext(parentCtx)
    64  
    65  	var gotCtx context.Context
    66  	spyHandler := http.HandlerFunc(func(w http.ResponseWriter, req *http.Request) {
    67  		gotCtx = req.Context()
    68  	})
    69  
    70  	regionMiddleware := middleware.AddRegionToContext(fixDefaultRegion)
    71  	router := mux.NewRouter()
    72  	router.Use(regionMiddleware)
    73  	router.Path("/endpoint-without-region").Handler(spyHandler)
    74  
    75  	// when
    76  	router.ServeHTTP(httptest.NewRecorder(), clientReq)
    77  	gotRegion, foundRegion := middleware.RegionFromContext(gotCtx)
    78  
    79  	// then
    80  	assert.Equal(t, ctxParentValueA, gotCtx.Value(ctxParentKeyA))
    81  
    82  	assert.True(t, foundRegion)
    83  	assert.Equal(t, fixDefaultRegion, gotRegion)
    84  }
    85  
    86  func TestRequestRegionKeyNotFound(t *testing.T) {
    87  	// when
    88  	gotValue, found := middleware.RegionFromContext(context.Background())
    89  
    90  	// then
    91  	assert.Empty(t, gotValue)
    92  	assert.False(t, found)
    93  }