(RuntimeError) 期望连接有响应
(RuntimeError) expected connection to have a response
我是 Phoenix Framework 的新用户,我正在尝试设置一个简单的 HTTP POST 服务,该服务对传入数据执行计算并 returns 结果,但我'我收到以下错误:
** (RuntimeError) expected connection to have a response but no response was set/sent
stacktrace:
(phoenix) lib/phoenix/conn_test.ex:311: Phoenix.ConnTest.response/2
(phoenix) lib/phoenix/conn_test.ex:366: Phoenix.ConnTest.json_response/2
test/controllers/translation_controller_test.exs:20
我的测试用例:
test "simple POST" do
post conn(), "/api/v1/foo", %{"request" => "bar"}
IO.inspect body = json_response(conn, 200)
end
我的路由器定义:
scope "/api", MyWeb do
pipe_through :api
post "/v1/foo", TranslationController, :transform
end
我的控制器:
def transform(conn, params) do
doc = Map.get(params, "request")
json conn, %{"response" => "grill"}
end
我错过了什么?
在您的测试中,您使用 Plug.Test.conn/4
获取 Plug.Conn
结构并将其作为参数传递给 post
。但是,您不会将结果存储在名为 conn
.
的变量中
这意味着在检查 json_response
时第二次使用 conn
实际上是对 Plug.Test.conn/4
.
的第二次调用
试试这个:
test "simple POST" do
conn = post conn(), "/api/v1/foo", %{"request" => "bar"}
assert json_response(conn, 200) == <whatever the expected JSON should be>
我是 Phoenix Framework 的新用户,我正在尝试设置一个简单的 HTTP POST 服务,该服务对传入数据执行计算并 returns 结果,但我'我收到以下错误:
** (RuntimeError) expected connection to have a response but no response was set/sent
stacktrace:
(phoenix) lib/phoenix/conn_test.ex:311: Phoenix.ConnTest.response/2
(phoenix) lib/phoenix/conn_test.ex:366: Phoenix.ConnTest.json_response/2
test/controllers/translation_controller_test.exs:20
我的测试用例:
test "simple POST" do
post conn(), "/api/v1/foo", %{"request" => "bar"}
IO.inspect body = json_response(conn, 200)
end
我的路由器定义:
scope "/api", MyWeb do
pipe_through :api
post "/v1/foo", TranslationController, :transform
end
我的控制器:
def transform(conn, params) do
doc = Map.get(params, "request")
json conn, %{"response" => "grill"}
end
我错过了什么?
在您的测试中,您使用 Plug.Test.conn/4
获取 Plug.Conn
结构并将其作为参数传递给 post
。但是,您不会将结果存储在名为 conn
.
这意味着在检查 json_response
时第二次使用 conn
实际上是对 Plug.Test.conn/4
.
试试这个:
test "simple POST" do
conn = post conn(), "/api/v1/foo", %{"request" => "bar"}
assert json_response(conn, 200) == <whatever the expected JSON should be>