Test

server/http_integration_test.go

@@ -803,6 +803,31 @@ func TestHTTPServer_QueryEncoding(t *testing.T) {
 	shutdown()
 }
 
+func TestHTTPServer_Backends(t *testing.T) {
+	client := newClient()
+
+	config := "testdata/integration/config/02_couper.hcl"
+
+	shutdown, _ := newCouper(config, test.New(t))
+
+	t.Run("Query-Encoding", func(subT *testing.T) {
+		helper := test.New(subT)
+
+		req, err := http.NewRequest(http.MethodGet, "http://example.com:8080", nil)
+		helper.Must(err)
+
+		res, err := client.Do(req)
+		helper.Must(err)
+
+		exp := []string{"1", "2", "3", "4"}
+		if !reflect.DeepEqual(res.Header.Values("Foo"), exp) {
+			t.Errorf("\nwant: \n%#v\ngot: \n%#v", exp, res.Header.Values("Foo"))
+		}
+	})
+
+	shutdown()
+}
+
 func TestHTTPServer_TrailingSlash(t *testing.T) {
 	client := newClient()
 

server/testdata/integration/config/02_couper.hcl

@@ -0,0 +1,33 @@
+server "backends" {
+  backend "test" {
+    add_response_headers = {
+      foo = "2"
+    }
+  }
+
+  api {
+    backend "test" {
+      add_response_headers = {
+        foo = "3"
+      }
+    }
+
+    endpoint "/" {
+      backend "test" {
+        add_response_headers = {
+          foo = "4"
+        }
+      }
+    }
+  }
+}
+
+definitions {
+  backend "test" {
+    origin = env.COUPER_TEST_BACKEND_ADDR
+
+    set_response_headers = {
+      foo = "1"
+    }
+  }
+}