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rails--rails/actionpack/test/dispatch/request/json_params_parsing_test.rb

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require "abstract_unit"
class JsonParamsParsingTest < ActionDispatch::IntegrationTest
class TestController < ActionController::Base
class << self
attr_accessor :last_request_parameters
end
def parse
self.class.last_request_parameters = request.request_parameters
head :ok
end
end
def teardown
TestController.last_request_parameters = nil
end
test "parses json params for application json" do
assert_parses(
{"person" => {"name" => "David"}},
"{\"person\": {\"name\": \"David\"}}", "CONTENT_TYPE" => "application/json"
)
end
test "parses boolean and number json params for application json" do
assert_parses(
{"item" => {"enabled" => false, "count" => 10}},
"{\"item\": {\"enabled\": false, \"count\": 10}}", "CONTENT_TYPE" => "application/json"
)
end
test "parses json params for application jsonrequest" do
assert_parses(
{"person" => {"name" => "David"}},
"{\"person\": {\"name\": \"David\"}}", "CONTENT_TYPE" => "application/jsonrequest"
)
end
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test "does not parse unregistered media types such as application/vnd.api+json" do
assert_parses(
{},
"{\"person\": {\"name\": \"David\"}}", "CONTENT_TYPE" => "application/vnd.api+json"
)
end
test "nils are stripped from collections" do
assert_parses(
{"person" => []},
"{\"person\":[null]}", "CONTENT_TYPE" => "application/json"
)
assert_parses(
{"person" => ["foo"]},
"{\"person\":[\"foo\",null]}", "CONTENT_TYPE" => "application/json"
)
assert_parses(
{"person" => []},
"{\"person\":[null, null]}", "CONTENT_TYPE" => "application/json"
)
end
test "logs error if parsing unsuccessful" do
with_test_routing do
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output = StringIO.new
json = "[\"person]\": {\"name\": \"David\"}}"
post "/parse", params: json, headers: { "CONTENT_TYPE" => "application/json", "action_dispatch.show_exceptions" => true, "action_dispatch.logger" => ActiveSupport::Logger.new(output) }
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assert_response :bad_request
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output.rewind && err = output.read
assert err =~ /Error occurred while parsing request parameters/
end
end
test "occurring a parse error if parsing unsuccessful" do
with_test_routing do
begin
$stderr = StringIO.new # suppress the log
json = "[\"person]\": {\"name\": \"David\"}}"
exception = assert_raise(ActionDispatch::ParamsParser::ParseError) { post "/parse", json, "CONTENT_TYPE" => "application/json", "action_dispatch.show_exceptions" => false }
assert_equal JSON::ParserError, exception.cause.class
assert_equal exception.cause.message, exception.message
ensure
$stderr = STDERR
end
end
end
test "raw_post is not empty for JSON request" do
with_test_routing do
post "/parse", params: '{"posts": [{"title": "Post Title"}]}', headers: { "CONTENT_TYPE" => "application/json" }
assert_equal '{"posts": [{"title": "Post Title"}]}', request.raw_post
end
end
private
def assert_parses(expected, actual, headers = {})
with_test_routing do
post "/parse", params: actual, headers: headers
assert_response :ok
assert_equal(expected, TestController.last_request_parameters)
end
end
def with_test_routing
with_routing do |set|
set.draw do
ActiveSupport::Deprecation.silence do
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post ":action", to: ::JsonParamsParsingTest::TestController
end
end
yield
end
end
end
class RootLessJSONParamsParsingTest < ActionDispatch::IntegrationTest
class UsersController < ActionController::Base
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wrap_parameters format: :json
class << self
attr_accessor :last_request_parameters, :last_parameters
end
def parse
self.class.last_request_parameters = request.request_parameters
self.class.last_parameters = params.to_unsafe_h
head :ok
end
end
def teardown
UsersController.last_request_parameters = nil
end
test "parses json params for application json" do
assert_parses(
{"user" => {"username" => "sikachu"}, "username" => "sikachu"},
"{\"username\": \"sikachu\"}", "CONTENT_TYPE" => "application/json"
)
end
test "parses json params for application jsonrequest" do
assert_parses(
{"user" => {"username" => "sikachu"}, "username" => "sikachu"},
"{\"username\": \"sikachu\"}", "CONTENT_TYPE" => "application/jsonrequest"
)
end
test "parses json with non-object JSON content" do
assert_parses(
{"user" => {"_json" => "string content" }, "_json" => "string content" },
"\"string content\"", "CONTENT_TYPE" => "application/json"
)
end
test "parses json params after custom json mime type registered" do
begin
Mime::Type.unregister :json
Mime::Type.register "application/json", :json, %w(application/vnd.rails+json)
assert_parses(
{"user" => {"username" => "meinac"}, "username" => "meinac"},
"{\"username\": \"meinac\"}", "CONTENT_TYPE" => "application/json"
)
ensure
Mime::Type.unregister :json
Mime::Type.register "application/json", :json, %w( text/x-json application/jsonrequest )
end
end
test "parses json params after custom json mime type registered with synonym" do
begin
Mime::Type.unregister :json
Mime::Type.register "application/json", :json, %w(application/vnd.rails+json)
assert_parses(
{"user" => {"username" => "meinac"}, "username" => "meinac"},
"{\"username\": \"meinac\"}", "CONTENT_TYPE" => "application/vnd.rails+json"
)
ensure
Mime::Type.unregister :json
Mime::Type.register "application/json", :json, %w( text/x-json application/jsonrequest )
end
end
private
def assert_parses(expected, actual, headers = {})
with_test_routing(UsersController) do
post "/parse", params: actual, headers: headers
assert_response :ok
assert_equal(expected, UsersController.last_request_parameters)
assert_equal(expected.merge("action" => "parse"), UsersController.last_parameters)
end
end
def with_test_routing(controller)
with_routing do |set|
set.draw do
ActiveSupport::Deprecation.silence do
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post ":action", to: controller
end
end
yield
end
end
end