Initial community commit

Src/external_dependencies/cpr/test/callback_tests.cpp

@@ -0,0 +1,931 @@
+#include <cstddef>
+#include <gtest/gtest.h>
+
+#include <chrono>
+#include <string>
+#include <thread>
+#include <vector>
+
+#include <cpr/cpr.h>
+
+#include "cpr/cprtypes.h"
+#include "httpServer.hpp"
+
+using namespace cpr;
+
+static HttpServer* server = new HttpServer();
+std::chrono::milliseconds sleep_time{50};
+std::chrono::seconds zero{0};
+
+int status_callback(int& status_code, Response r) {
+    status_code = r.status_code;
+    return r.status_code;
+}
+
+int status_callback_ref(int& status_code, const Response& r) {
+    status_code = r.status_code;
+    return r.status_code;
+}
+
+std::string text_callback(std::string& expected_text, Response r) {
+    expected_text = r.text;
+    return r.text;
+}
+
+std::string text_callback_ref(std::string& expected_text, const Response& r) {
+    expected_text = r.text;
+    return r.text;
+}
+
+TEST(CallbackGetTests, CallbackGetLambdaStatusTest) {
+    Url url{server->GetBaseUrl() + "/hello.html"};
+    int status_code = 0;
+    auto future = cpr::GetCallback(
+            [&status_code](Response r) {
+                status_code = r.status_code;
+                return r.status_code;
+            },
+            url);
+    std::this_thread::sleep_for(sleep_time);
+    EXPECT_EQ(future.wait_for(zero), std::future_status::ready);
+    EXPECT_EQ(status_code, future.get());
+}
+
+TEST(CallbackGetTests, CallbackGetLambdaTextTest) {
+    Url url{server->GetBaseUrl() + "/hello.html"};
+    std::string expected_text{};
+    auto future = cpr::GetCallback(
+            [&expected_text](Response r) {
+                expected_text = r.text;
+                return r.text;
+            },
+            url);
+    std::this_thread::sleep_for(sleep_time);
+    EXPECT_EQ(future.wait_for(zero), std::future_status::ready);
+    EXPECT_EQ(expected_text, future.get());
+}
+
+TEST(CallbackGetTests, CallbackGetLambdaStatusReferenceTest) {
+    Url url{server->GetBaseUrl() + "/hello.html"};
+    int status_code = 0;
+    auto future = cpr::GetCallback(
+            [&status_code](const Response& r) {
+                status_code = r.status_code;
+                return r.status_code;
+            },
+            url);
+    std::this_thread::sleep_for(sleep_time);
+    EXPECT_EQ(future.wait_for(zero), std::future_status::ready);
+    EXPECT_EQ(status_code, future.get());
+}
+
+TEST(CallbackGetTests, CallbackGetLambdaTextReferenceTest) {
+    Url url{server->GetBaseUrl() + "/hello.html"};
+    std::string expected_text{};
+    auto future = cpr::GetCallback(
+            [&expected_text](const Response& r) {
+                expected_text = r.text;
+                return r.text;
+            },
+            url);
+    std::this_thread::sleep_for(sleep_time);
+    EXPECT_EQ(future.wait_for(zero), std::future_status::ready);
+    EXPECT_EQ(expected_text, future.get());
+}
+
+TEST(CallbackGetTests, CallbackGetFunctionStatusTest) {
+    Url url{server->GetBaseUrl() + "/hello.html"};
+    int status_code = 0;
+    auto callback = std::function<int(Response)>(std::bind(status_callback, std::ref(status_code), std::placeholders::_1));
+    auto future = cpr::GetCallback(callback, url);
+    std::this_thread::sleep_for(sleep_time);
+    EXPECT_EQ(future.wait_for(zero), std::future_status::ready);
+    EXPECT_EQ(status_code, future.get());
+}
+
+TEST(CallbackGetTests, CallbackGetFunctionTextTest) {
+    Url url{server->GetBaseUrl() + "/hello.html"};
+    std::string expected_text{};
+    auto callback = std::function<std::string(Response)>(std::bind(text_callback, std::ref(expected_text), std::placeholders::_1));
+    auto future = cpr::GetCallback(callback, url);
+    std::this_thread::sleep_for(sleep_time);
+    EXPECT_EQ(future.wait_for(zero), std::future_status::ready);
+    EXPECT_EQ(expected_text, future.get());
+}
+
+TEST(CallbackGetTests, CallbackGetFunctionStatusReferenceTest) {
+    Url url{server->GetBaseUrl() + "/hello.html"};
+    int status_code = 0;
+    auto callback = std::function<int(Response)>(std::bind(status_callback_ref, std::ref(status_code), std::placeholders::_1));
+    auto future = cpr::GetCallback(callback, url);
+    std::this_thread::sleep_for(sleep_time);
+    EXPECT_EQ(future.wait_for(zero), std::future_status::ready);
+    EXPECT_EQ(status_code, future.get());
+}
+
+TEST(CallbackGetTests, CallbackGetFunctionTextReferenceTest) {
+    Url url{server->GetBaseUrl() + "/hello.html"};
+    std::string expected_text{};
+    auto callback = std::function<std::string(Response)>(std::bind(text_callback_ref, std::ref(expected_text), std::placeholders::_1));
+    auto future = cpr::GetCallback(callback, url);
+    std::this_thread::sleep_for(sleep_time);
+    EXPECT_EQ(future.wait_for(zero), std::future_status::ready);
+    EXPECT_EQ(expected_text, future.get());
+}
+
+TEST(CallbackDeleteTests, CallbackDeleteLambdaStatusTest) {
+    Url url{server->GetBaseUrl() + "/delete.html"};
+    int status_code = 0;
+    auto future = cpr::DeleteCallback(
+            [&status_code](Response r) {
+                status_code = r.status_code;
+                return r.status_code;
+            },
+            url);
+    std::this_thread::sleep_for(sleep_time);
+    EXPECT_EQ(future.wait_for(zero), std::future_status::ready);
+    EXPECT_EQ(status_code, future.get());
+}
+
+TEST(CallbackDeleteTests, CallbackDeleteLambdaTextTest) {
+    Url url{server->GetBaseUrl() + "/delete.html"};
+    std::string expected_text{};
+    auto future = cpr::DeleteCallback(
+            [&expected_text](Response r) {
+                expected_text = r.text;
+                return r.text;
+            },
+            url);
+    std::this_thread::sleep_for(sleep_time);
+    EXPECT_EQ(future.wait_for(zero), std::future_status::ready);
+    EXPECT_EQ(expected_text, future.get());
+}
+
+TEST(CallbackDeleteTests, CallbackDeleteLambdaStatusReferenceTest) {
+    Url url{server->GetBaseUrl() + "/delete.html"};
+    int status_code = 0;
+    auto future = cpr::DeleteCallback(
+            [&status_code](const Response& r) {
+                status_code = r.status_code;
+                return r.status_code;
+            },
+            url);
+    std::this_thread::sleep_for(sleep_time);
+    EXPECT_EQ(future.wait_for(zero), std::future_status::ready);
+    EXPECT_EQ(status_code, future.get());
+}
+
+TEST(CallbackDeleteTests, CallbackDeleteLambdaTextReferenceTest) {
+    Url url{server->GetBaseUrl() + "/delete.html"};
+    std::string expected_text{};
+    auto future = cpr::DeleteCallback(
+            [&expected_text](const Response& r) {
+                expected_text = r.text;
+                return r.text;
+            },
+            url);
+    std::this_thread::sleep_for(sleep_time);
+    EXPECT_EQ(future.wait_for(zero), std::future_status::ready);
+    EXPECT_EQ(expected_text, future.get());
+}
+
+TEST(CallbackDeleteTests, CallbackDeleteFunctionStatusTest) {
+    Url url{server->GetBaseUrl() + "/delete.html"};
+    int status_code = 0;
+    auto callback = std::function<int(Response)>(std::bind(status_callback, std::ref(status_code), std::placeholders::_1));
+    auto future = cpr::DeleteCallback(callback, url);
+    std::this_thread::sleep_for(sleep_time);
+    EXPECT_EQ(future.wait_for(zero), std::future_status::ready);
+    EXPECT_EQ(status_code, future.get());
+}
+
+TEST(CallbackDeleteTests, CallbackDeleteFunctionTextTest) {
+    Url url{server->GetBaseUrl() + "/delete.html"};
+    std::string expected_text{};
+    auto callback = std::function<std::string(Response)>(std::bind(text_callback, std::ref(expected_text), std::placeholders::_1));
+    auto future = cpr::DeleteCallback(callback, url);
+    std::this_thread::sleep_for(sleep_time);
+    EXPECT_EQ(future.wait_for(zero), std::future_status::ready);
+    EXPECT_EQ(expected_text, future.get());
+}
+
+TEST(CallbackDeleteTests, CallbackDeleteFunctionStatusReferenceTest) {
+    Url url{server->GetBaseUrl() + "/delete.html"};
+    int status_code = 0;
+    auto callback = std::function<int(Response)>(std::bind(status_callback_ref, std::ref(status_code), std::placeholders::_1));
+    auto future = cpr::DeleteCallback(callback, url);
+    std::this_thread::sleep_for(sleep_time);
+    EXPECT_EQ(future.wait_for(zero), std::future_status::ready);
+    EXPECT_EQ(status_code, future.get());
+}
+
+TEST(CallbackDeleteTests, CallbackDeleteFunctionTextReferenceTest) {
+    Url url{server->GetBaseUrl() + "/delete.html"};
+    std::string expected_text{};
+    auto callback = std::function<std::string(Response)>(std::bind(text_callback_ref, std::ref(expected_text), std::placeholders::_1));
+    auto future = cpr::DeleteCallback(callback, url);
+    std::this_thread::sleep_for(sleep_time);
+    EXPECT_EQ(future.wait_for(zero), std::future_status::ready);
+    EXPECT_EQ(expected_text, future.get());
+}
+
+TEST(CallbackHeadTests, CallbackHeadLambdaStatusTest) {
+    Url url{server->GetBaseUrl() + "/hello.html"};
+    int status_code = 0;
+    auto future = cpr::HeadCallback(
+            [&status_code](Response r) {
+                status_code = r.status_code;
+                return r.status_code;
+            },
+            url);
+    std::this_thread::sleep_for(sleep_time);
+    EXPECT_EQ(future.wait_for(zero), std::future_status::ready);
+    EXPECT_EQ(status_code, future.get());
+}
+
+TEST(CallbackHeadTests, CallbackHeadLambdaTextTest) {
+    Url url{server->GetBaseUrl() + "/hello.html"};
+    std::string expected_text{};
+    auto future = cpr::HeadCallback(
+            [&expected_text](Response r) {
+                expected_text = r.text;
+                return r.text;
+            },
+            url);
+    std::this_thread::sleep_for(sleep_time);
+    EXPECT_EQ(future.wait_for(zero), std::future_status::ready);
+    EXPECT_EQ(expected_text, future.get());
+}
+
+TEST(CallbackHeadTests, CallbackHeadLambdaStatusReferenceTest) {
+    Url url{server->GetBaseUrl() + "/hello.html"};
+    int status_code = 0;
+    auto future = cpr::HeadCallback(
+            [&status_code](const Response& r) {
+                status_code = r.status_code;
+                return r.status_code;
+            },
+            url);
+    std::this_thread::sleep_for(sleep_time);
+    EXPECT_EQ(future.wait_for(zero), std::future_status::ready);
+    EXPECT_EQ(status_code, future.get());
+}
+
+TEST(CallbackHeadTests, CallbackHeadLambdaTextReferenceTest) {
+    Url url{server->GetBaseUrl() + "/hello.html"};
+    std::string expected_text{};
+    auto future = cpr::HeadCallback(
+            [&expected_text](const Response& r) {
+                expected_text = r.text;
+                return r.text;
+            },
+            url);
+    std::this_thread::sleep_for(sleep_time);
+    EXPECT_EQ(future.wait_for(zero), std::future_status::ready);
+    EXPECT_EQ(expected_text, future.get());
+}
+
+TEST(CallbackHeadTests, CallbackHeadFunctionStatusTest) {
+    Url url{server->GetBaseUrl() + "/hello.html"};
+    int status_code = 0;
+    auto callback = std::function<int(Response)>(std::bind(status_callback, std::ref(status_code), std::placeholders::_1));
+    auto future = cpr::HeadCallback(callback, url);
+    std::this_thread::sleep_for(sleep_time);
+    EXPECT_EQ(future.wait_for(zero), std::future_status::ready);
+    EXPECT_EQ(status_code, future.get());
+}
+
+TEST(CallbackHeadTests, CallbackHeadFunctionTextTest) {
+    Url url{server->GetBaseUrl() + "/hello.html"};
+    std::string expected_text{};
+    auto callback = std::function<std::string(Response)>(std::bind(text_callback, std::ref(expected_text), std::placeholders::_1));
+    auto future = cpr::HeadCallback(callback, url);
+    std::this_thread::sleep_for(sleep_time);
+    EXPECT_EQ(future.wait_for(zero), std::future_status::ready);
+    EXPECT_EQ(expected_text, future.get());
+}
+
+TEST(CallbackHeadTests, CallbackHeadFunctionStatusReferenceTest) {
+    Url url{server->GetBaseUrl() + "/hello.html"};
+    int status_code = 0;
+    auto callback = std::function<int(Response)>(std::bind(status_callback_ref, std::ref(status_code), std::placeholders::_1));
+    auto future = cpr::HeadCallback(callback, url);
+    std::this_thread::sleep_for(sleep_time);
+    EXPECT_EQ(future.wait_for(zero), std::future_status::ready);
+    EXPECT_EQ(status_code, future.get());
+}
+
+TEST(CallbackHeadTests, CallbackHeadFunctionTextReferenceTest) {
+    Url url{server->GetBaseUrl() + "/hello.html"};
+    std::string expected_text{};
+    auto callback = std::function<std::string(Response)>(std::bind(text_callback_ref, std::ref(expected_text), std::placeholders::_1));
+    auto future = cpr::HeadCallback(callback, url);
+    std::this_thread::sleep_for(sleep_time);
+    EXPECT_EQ(future.wait_for(zero), std::future_status::ready);
+    EXPECT_EQ(expected_text, future.get());
+}
+
+TEST(CallbackPostTests, CallbackPostLambdaStatusTest) {
+    Url url{server->GetBaseUrl() + "/url_post.html"};
+    Payload payload{{"x", "5"}};
+    int status_code = 0;
+    auto future = cpr::PostCallback(
+            [&status_code](Response r) {
+                status_code = r.status_code;
+                return r.status_code;
+            },
+            url, payload);
+    std::this_thread::sleep_for(sleep_time);
+    EXPECT_EQ(future.wait_for(zero), std::future_status::ready);
+    EXPECT_EQ(status_code, future.get());
+}
+
+TEST(CallbackPostTests, CallbackPostLambdaTextTest) {
+    Url url{server->GetBaseUrl() + "/url_post.html"};
+    Payload payload{{"x", "5"}};
+    std::string expected_text{};
+    auto future = cpr::PostCallback(
+            [&expected_text](Response r) {
+                expected_text = r.text;
+                return r.text;
+            },
+            url, payload);
+    std::this_thread::sleep_for(sleep_time);
+    EXPECT_EQ(future.wait_for(zero), std::future_status::ready);
+    EXPECT_EQ(expected_text, future.get());
+}
+
+TEST(CallbackPostTests, CallbackPostLambdaStatusReferenceTest) {
+    Url url{server->GetBaseUrl() + "/url_post.html"};
+    Payload payload{{"x", "5"}};
+    int status_code = 0;
+    auto future = cpr::PostCallback(
+            [&status_code](const Response& r) {
+                status_code = r.status_code;
+                return r.status_code;
+            },
+            url, payload);
+    std::this_thread::sleep_for(sleep_time);
+    EXPECT_EQ(future.wait_for(zero), std::future_status::ready);
+    EXPECT_EQ(status_code, future.get());
+}
+
+TEST(CallbackPostTests, CallbackPostLambdaTextReferenceTest) {
+    Url url{server->GetBaseUrl() + "/url_post.html"};
+    Payload payload{{"x", "5"}};
+    std::string expected_text{};
+    auto future = cpr::PostCallback(
+            [&expected_text](const Response& r) {
+                expected_text = r.text;
+                return r.text;
+            },
+            url, payload);
+    std::this_thread::sleep_for(sleep_time);
+    EXPECT_EQ(future.wait_for(zero), std::future_status::ready);
+    EXPECT_EQ(expected_text, future.get());
+}
+
+TEST(CallbackPostTests, CallbackPostFunctionStatusTest) {
+    Url url{server->GetBaseUrl() + "/url_post.html"};
+    Payload payload{{"x", "5"}};
+    int status_code = 0;
+    auto callback = std::function<int(Response)>(std::bind(status_callback, std::ref(status_code), std::placeholders::_1));
+    auto future = cpr::PostCallback(callback, url, payload);
+    std::this_thread::sleep_for(sleep_time);
+    EXPECT_EQ(future.wait_for(zero), std::future_status::ready);
+    EXPECT_EQ(status_code, future.get());
+}
+
+TEST(CallbackPostTests, CallbackPostFunctionTextTest) {
+    Url url{server->GetBaseUrl() + "/url_post.html"};
+    Payload payload{{"x", "5"}};
+    std::string expected_text{};
+    auto callback = std::function<std::string(Response)>(std::bind(text_callback, std::ref(expected_text), std::placeholders::_1));
+    auto future = cpr::PostCallback(callback, url, payload);
+    std::this_thread::sleep_for(sleep_time);
+    EXPECT_EQ(future.wait_for(zero), std::future_status::ready);
+    EXPECT_EQ(expected_text, future.get());
+}
+
+TEST(CallbackPostTests, CallbackPostFunctionStatusReferenceTest) {
+    Url url{server->GetBaseUrl() + "/url_post.html"};
+    Payload payload{{"x", "5"}};
+    int status_code = 0;
+    auto callback = std::function<int(Response)>(std::bind(status_callback_ref, std::ref(status_code), std::placeholders::_1));
+    auto future = cpr::PostCallback(callback, url, payload);
+    std::this_thread::sleep_for(sleep_time);
+    EXPECT_EQ(future.wait_for(zero), std::future_status::ready);
+    EXPECT_EQ(status_code, future.get());
+}
+
+TEST(CallbackPostTests, CallbackPostFunctionTextReferenceTest) {
+    Url url{server->GetBaseUrl() + "/url_post.html"};
+    Payload payload{{"x", "5"}};
+    std::string expected_text{};
+    auto callback = std::function<std::string(Response)>(std::bind(text_callback_ref, std::ref(expected_text), std::placeholders::_1));
+    auto future = cpr::PostCallback(callback, url, payload);
+    std::this_thread::sleep_for(sleep_time);
+    EXPECT_EQ(future.wait_for(zero), std::future_status::ready);
+    EXPECT_EQ(expected_text, future.get());
+}
+
+TEST(CallbackPutTests, CallbackPutLambdaStatusTest) {
+    Url url{server->GetBaseUrl() + "/url_post.html"};
+    Payload payload{{"x", "5"}};
+    int status_code = 0;
+    auto future = cpr::PutCallback(
+            [&status_code](Response r) {
+                status_code = r.status_code;
+                return r.status_code;
+            },
+            url, payload);
+    std::this_thread::sleep_for(sleep_time);
+    EXPECT_EQ(future.wait_for(zero), std::future_status::ready);
+    EXPECT_EQ(status_code, future.get());
+}
+
+TEST(CallbackPutTests, CallbackPutLambdaTextTest) {
+    Url url{server->GetBaseUrl() + "/url_post.html"};
+    Payload payload{{"x", "5"}};
+    std::string expected_text{};
+    auto future = cpr::PutCallback(
+            [&expected_text](Response r) {
+                expected_text = r.text;
+                return r.text;
+            },
+            url, payload);
+    std::this_thread::sleep_for(sleep_time);
+    EXPECT_EQ(future.wait_for(zero), std::future_status::ready);
+    EXPECT_EQ(expected_text, future.get());
+}
+
+TEST(CallbackPutTests, CallbackPutLambdaStatusReferenceTest) {
+    Url url{server->GetBaseUrl() + "/url_post.html"};
+    Payload payload{{"x", "5"}};
+    int status_code = 0;
+    auto future = cpr::PutCallback(
+            [&status_code](const Response& r) {
+                status_code = r.status_code;
+                return r.status_code;
+            },
+            url, payload);
+    std::this_thread::sleep_for(sleep_time);
+    EXPECT_EQ(future.wait_for(zero), std::future_status::ready);
+    EXPECT_EQ(status_code, future.get());
+}
+
+TEST(CallbackPutTests, CallbackPutLambdaTextReferenceTest) {
+    Url url{server->GetBaseUrl() + "/url_post.html"};
+    Payload payload{{"x", "5"}};
+    std::string expected_text{};
+    auto future = cpr::PutCallback(
+            [&expected_text](const Response& r) {
+                expected_text = r.text;
+                return r.text;
+            },
+            url, payload);
+    std::this_thread::sleep_for(sleep_time);
+    EXPECT_EQ(future.wait_for(zero), std::future_status::ready);
+    EXPECT_EQ(expected_text, future.get());
+}
+
+TEST(CallbackPutTests, CallbackPutFunctionStatusTest) {
+    Url url{server->GetBaseUrl() + "/url_post.html"};
+    Payload payload{{"x", "5"}};
+    int status_code = 0;
+    auto callback = std::function<int(Response)>(std::bind(status_callback, std::ref(status_code), std::placeholders::_1));
+    auto future = cpr::PutCallback(callback, url, payload);
+    std::this_thread::sleep_for(sleep_time);
+    EXPECT_EQ(future.wait_for(zero), std::future_status::ready);
+    EXPECT_EQ(status_code, future.get());
+}
+
+TEST(CallbackPutTests, CallbackPutFunctionTextTest) {
+    Url url{server->GetBaseUrl() + "/url_post.html"};
+    Payload payload{{"x", "5"}};
+    std::string expected_text{};
+    auto callback = std::function<std::string(Response)>(std::bind(text_callback, std::ref(expected_text), std::placeholders::_1));
+    auto future = cpr::PutCallback(callback, url, payload);
+    std::this_thread::sleep_for(sleep_time);
+    EXPECT_EQ(future.wait_for(zero), std::future_status::ready);
+    EXPECT_EQ(expected_text, future.get());
+}
+
+TEST(CallbackPutTests, CallbackPutFunctionStatusReferenceTest) {
+    Url url{server->GetBaseUrl() + "/url_post.html"};
+    Payload payload{{"x", "5"}};
+    int status_code = 0;
+    auto callback = std::function<int(Response)>(std::bind(status_callback_ref, std::ref(status_code), std::placeholders::_1));
+    auto future = cpr::PutCallback(callback, url, payload);
+    std::this_thread::sleep_for(sleep_time);
+    EXPECT_EQ(future.wait_for(zero), std::future_status::ready);
+    EXPECT_EQ(status_code, future.get());
+}
+
+TEST(CallbackPutTests, CallbackPutFunctionTextReferenceTest) {
+    Url url{server->GetBaseUrl() + "/url_post.html"};
+    Payload payload{{"x", "5"}};
+    std::string expected_text{};
+    auto callback = std::function<std::string(Response)>(std::bind(text_callback_ref, std::ref(expected_text), std::placeholders::_1));
+    auto future = cpr::PutCallback(callback, url, payload);
+    std::this_thread::sleep_for(sleep_time);
+    EXPECT_EQ(future.wait_for(zero), std::future_status::ready);
+    EXPECT_EQ(expected_text, future.get());
+}
+
+TEST(CallbackOptionsTests, CallbackOptionsLambdaStatusTest) {
+    Url url{server->GetBaseUrl() + "/hello.html"};
+    int status_code = 0;
+    auto future = cpr::OptionsCallback(
+            [&status_code](Response r) {
+                status_code = r.status_code;
+                return r.status_code;
+            },
+            url);
+    std::this_thread::sleep_for(sleep_time);
+    EXPECT_EQ(future.wait_for(zero), std::future_status::ready);
+    EXPECT_EQ(status_code, future.get());
+}
+
+TEST(CallbackOptionsTests, CallbackOptionsLambdaTextTest) {
+    Url url{server->GetBaseUrl() + "/hello.html"};
+    std::string expected_text{};
+    auto future = cpr::OptionsCallback(
+            [&expected_text](Response r) {
+                expected_text = r.text;
+                return r.text;
+            },
+            url);
+    std::this_thread::sleep_for(sleep_time);
+    EXPECT_EQ(future.wait_for(zero), std::future_status::ready);
+    EXPECT_EQ(expected_text, future.get());
+}
+
+TEST(CallbackOptionsTests, CallbackOptionsLambdaStatusReferenceTest) {
+    Url url{server->GetBaseUrl() + "/hello.html"};
+    int status_code = 0;
+    auto future = cpr::OptionsCallback(
+            [&status_code](const Response& r) {
+                status_code = r.status_code;
+                return r.status_code;
+            },
+            url);
+    std::this_thread::sleep_for(sleep_time);
+    EXPECT_EQ(future.wait_for(zero), std::future_status::ready);
+    EXPECT_EQ(status_code, future.get());
+}
+
+TEST(CallbackOptionsTests, CallbackOptionsLambdaTextReferenceTest) {
+    Url url{server->GetBaseUrl() + "/hello.html"};
+    std::string expected_text{};
+    auto future = cpr::OptionsCallback(
+            [&expected_text](const Response& r) {
+                expected_text = r.text;
+                return r.text;
+            },
+            url);
+    std::this_thread::sleep_for(sleep_time);
+    EXPECT_EQ(future.wait_for(zero), std::future_status::ready);
+    EXPECT_EQ(expected_text, future.get());
+}
+
+TEST(CallbackOptionsTests, CallbackOptionsFunctionStatusTest) {
+    Url url{server->GetBaseUrl() + "/hello.html"};
+    int status_code = 0;
+    auto callback = std::function<int(Response)>(std::bind(status_callback, std::ref(status_code), std::placeholders::_1));
+    auto future = cpr::OptionsCallback(callback, url);
+    std::this_thread::sleep_for(sleep_time);
+    EXPECT_EQ(future.wait_for(zero), std::future_status::ready);
+    EXPECT_EQ(status_code, future.get());
+}
+
+TEST(CallbackOptionsTests, CallbackOptionsFunctionTextTest) {
+    Url url{server->GetBaseUrl() + "/hello.html"};
+    std::string expected_text{};
+    auto callback = std::function<std::string(Response)>(std::bind(text_callback, std::ref(expected_text), std::placeholders::_1));
+    auto future = cpr::OptionsCallback(callback, url);
+    std::this_thread::sleep_for(sleep_time);
+    EXPECT_EQ(future.wait_for(zero), std::future_status::ready);
+    EXPECT_EQ(expected_text, future.get());
+}
+
+TEST(CallbackOptionsTests, CallbackOptionsFunctionStatusReferenceTest) {
+    Url url{server->GetBaseUrl() + "/hello.html"};
+    int status_code = 0;
+    auto callback = std::function<int(Response)>(std::bind(status_callback_ref, std::ref(status_code), std::placeholders::_1));
+    auto future = cpr::OptionsCallback(callback, url);
+    std::this_thread::sleep_for(sleep_time);
+    EXPECT_EQ(future.wait_for(zero), std::future_status::ready);
+    EXPECT_EQ(status_code, future.get());
+}
+
+TEST(CallbackOptionsTests, CallbackOptionsFunctionTextReferenceTest) {
+    Url url{server->GetBaseUrl() + "/hello.html"};
+    std::string expected_text{};
+    auto callback = std::function<std::string(Response)>(std::bind(text_callback_ref, std::ref(expected_text), std::placeholders::_1));
+    auto future = cpr::OptionsCallback(callback, url);
+    std::this_thread::sleep_for(sleep_time);
+    EXPECT_EQ(future.wait_for(zero), std::future_status::ready);
+    EXPECT_EQ(expected_text, future.get());
+}
+
+TEST(CallbackPatchTests, CallbackPatchLambdaStatusTest) {
+    Url url{server->GetBaseUrl() + "/url_post.html"};
+    Payload payload{{"x", "5"}};
+    int status_code = 0;
+    auto future = cpr::PatchCallback(
+            [&status_code](Response r) {
+                status_code = r.status_code;
+                return r.status_code;
+            },
+            url, payload);
+    std::this_thread::sleep_for(sleep_time);
+    EXPECT_EQ(future.wait_for(zero), std::future_status::ready);
+    EXPECT_EQ(status_code, future.get());
+}
+
+TEST(CallbackPatchTests, CallbackPatchLambdaTextTest) {
+    Url url{server->GetBaseUrl() + "/url_post.html"};
+    Payload payload{{"x", "5"}};
+    std::string expected_text{};
+    auto future = cpr::PatchCallback(
+            [&expected_text](Response r) {
+                expected_text = r.text;
+                return r.text;
+            },
+            url, payload);
+    std::this_thread::sleep_for(sleep_time);
+    EXPECT_EQ(future.wait_for(zero), std::future_status::ready);
+    EXPECT_EQ(expected_text, future.get());
+}
+
+TEST(CallbackPatchTests, CallbackPatchLambdaStatusReferenceTest) {
+    Url url{server->GetBaseUrl() + "/url_post.html"};
+    Payload payload{{"x", "5"}};
+    int status_code = 0;
+    auto future = cpr::PatchCallback(
+            [&status_code](const Response& r) {
+                status_code = r.status_code;
+                return r.status_code;
+            },
+            url, payload);
+    std::this_thread::sleep_for(sleep_time);
+    EXPECT_EQ(future.wait_for(zero), std::future_status::ready);
+    EXPECT_EQ(status_code, future.get());
+}
+
+TEST(CallbackPatchTests, CallbackPatchLambdaTextReferenceTest) {
+    Url url{server->GetBaseUrl() + "/url_post.html"};
+    Payload payload{{"x", "5"}};
+    std::string expected_text{};
+    auto future = cpr::PatchCallback(
+            [&expected_text](const Response& r) {
+                expected_text = r.text;
+                return r.text;
+            },
+            url, payload);
+    std::this_thread::sleep_for(sleep_time);
+    EXPECT_EQ(future.wait_for(zero), std::future_status::ready);
+    EXPECT_EQ(expected_text, future.get());
+}
+
+TEST(CallbackPatchTests, CallbackPatchFunctionStatusTest) {
+    Url url{server->GetBaseUrl() + "/url_post.html"};
+    Payload payload{{"x", "5"}};
+    int status_code = 0;
+    auto callback = std::function<int(Response)>(std::bind(status_callback, std::ref(status_code), std::placeholders::_1));
+    auto future = cpr::PatchCallback(callback, url, payload);
+    std::this_thread::sleep_for(sleep_time);
+    EXPECT_EQ(future.wait_for(zero), std::future_status::ready);
+    EXPECT_EQ(status_code, future.get());
+}
+
+TEST(CallbackPatchTests, CallbackPatchFunctionTextTest) {
+    Url url{server->GetBaseUrl() + "/url_post.html"};
+    Payload payload{{"x", "5"}};
+    std::string expected_text{};
+    auto callback = std::function<std::string(Response)>(std::bind(text_callback, std::ref(expected_text), std::placeholders::_1));
+    auto future = cpr::PatchCallback(callback, url, payload);
+    std::this_thread::sleep_for(sleep_time);
+    EXPECT_EQ(future.wait_for(zero), std::future_status::ready);
+    EXPECT_EQ(expected_text, future.get());
+}
+
+TEST(CallbackPatchTests, CallbackPatchFunctionStatusReferenceTest) {
+    Url url{server->GetBaseUrl() + "/url_post.html"};
+    Payload payload{{"x", "5"}};
+    int status_code = 0;
+    auto callback = std::function<int(Response)>(std::bind(status_callback_ref, std::ref(status_code), std::placeholders::_1));
+    auto future = cpr::PatchCallback(callback, url, payload);
+    std::this_thread::sleep_for(sleep_time);
+    EXPECT_EQ(future.wait_for(zero), std::future_status::ready);
+    EXPECT_EQ(status_code, future.get());
+}
+
+TEST(CallbackPatchTests, CallbackPatchFunctionTextReferenceTest) {
+    Url url{server->GetBaseUrl() + "/url_post.html"};
+    Payload payload{{"x", "5"}};
+    std::string expected_text{};
+    auto callback = std::function<std::string(Response)>(std::bind(text_callback_ref, std::ref(expected_text), std::placeholders::_1));
+    auto future = cpr::PatchCallback(callback, url, payload);
+    std::this_thread::sleep_for(sleep_time);
+    EXPECT_EQ(future.wait_for(zero), std::future_status::ready);
+    EXPECT_EQ(expected_text, future.get());
+}
+
+TEST(CallbackDataTests, CallbackReadFunctionCancelTest) {
+    Url url{server->GetBaseUrl() + "/url_post.html"};
+    Response response = cpr::Post(url, cpr::ReadCallback([](char* /*buffer*/, size_t& /*size*/, intptr_t /*userdata*/) -> size_t { return false; }));
+    EXPECT_EQ(response.error.code, ErrorCode::REQUEST_CANCELLED);
+}
+
+TEST(CallbackDataTests, CallbackReadFunctionTextTest) {
+    Url url{server->GetBaseUrl() + "/url_post.html"};
+    std::string expected_text{
+            "{\n"
+            "  \"x\": 5\n"
+            "}"};
+    unsigned count = 0;
+    Response response = cpr::Post(url, cpr::ReadCallback{3, [&](char* buffer, size_t& size, intptr_t /*userdata*/) -> size_t {
+                                                             std::string data;
+                                                             ++count;
+                                                             switch (count) {
+                                                                 case 1:
+                                                                     data = "x=";
+                                                                     break;
+                                                                 case 2:
+                                                                     data = "5";
+                                                                     break;
+                                                                 default:
+                                                                     return false;
+                                                             }
+                                                             std::copy(data.begin(), data.end(), buffer);
+                                                             size = data.size();
+                                                             return true;
+                                                         }});
+    EXPECT_EQ(2, count);
+    EXPECT_EQ(expected_text, response.text);
+}
+
+TEST(CallbackDataTests, CallbackReadFunctionTextTestPut) {
+    Url url{server->GetBaseUrl() + "/put.html"};
+    std::string expected_text{
+            "{\n"
+            "  \"x\": 5\n"
+            "}"};
+    unsigned count = 0;
+    Response response = cpr::Put(url, cpr::ReadCallback{3, [&](char* buffer, size_t& size, intptr_t /*userdata*/) -> size_t {
+                                                            std::string data;
+                                                            ++count;
+                                                            switch (count) {
+                                                                case 1:
+                                                                    data = "x=";
+                                                                    break;
+                                                                case 2:
+                                                                    data = "5";
+                                                                    break;
+                                                                default:
+                                                                    return false;
+                                                            }
+                                                            std::copy(data.begin(), data.end(), buffer);
+                                                            size = data.size();
+                                                            return true;
+                                                        }});
+    EXPECT_EQ(2, count);
+    EXPECT_EQ(expected_text, response.text);
+    EXPECT_EQ(std::string{"application/json"}, response.header["content-type"]);
+    EXPECT_EQ(200, response.status_code);
+    EXPECT_EQ(ErrorCode::OK, response.error.code);
+}
+
+/**
+ * Checks if the "Transfer-Encoding" header will be kept when using headers and a read callback.
+ * Issue: https://github.com/whoshuu/cpr/issues/517
+ **/
+TEST(CallbackDataTests, CallbackReadFunctionHeaderTest) {
+    Url url{server->GetBaseUrl() + "/header_reflect.html"};
+    std::string data = "Test";
+    Response response = cpr::Post(url,
+                                  cpr::ReadCallback{-1,
+                                                    [&](char* /*buffer*/, size_t& size, intptr_t /*userdata*/) -> size_t {
+                                                        size = 0;
+                                                        return true;
+                                                    }},
+                                  Header{{"TestHeader", "42"}});
+    EXPECT_EQ(url, response.url);
+    EXPECT_EQ(200, response.status_code);
+
+    // Check Header:
+    EXPECT_EQ(std::string{"42"}, response.header["TestHeader"]); // Set by us
+    EXPECT_TRUE(response.header.find("TestHeader") != response.header.end());
+    EXPECT_EQ(std::string{"chunked"}, response.header["Transfer-Encoding"]); // Set by the read callback
+    EXPECT_TRUE(response.header.find("Transfer-Encoding") != response.header.end());
+}
+
+/* cesanta mongoose doesn't support chunked requests yet
+TEST(CallbackDataTests, CallbackReadFunctionChunkedTest) {
+    Url url{server->GetBaseUrl() + "/url_post.html"};
+    std::string expected_text{
+            "{\n"
+            "  \"x\": 5\n"
+            "}"};
+    unsigned count = 0;
+    Response response = cpr::Post(url, cpr::ReadCallback{[&count](char* buffer, size_t & size) -> size_t {
+        std::string data;
+        ++ count;
+        switch (count) {
+        case 1:
+            data = "x=";
+            break;
+        case 2:
+            data = "5";
+            break;
+        default:
+            data = "";
+            break;
+        }
+        std::copy(data.begin(), data.end(), buffer);
+        size = data.size();
+        return true;
+    }});
+    EXPECT_EQ(3, count);
+    EXPECT_EQ(expected_text, response.text);
+}
+*/
+
+TEST(CallbackDataTests, CallbackHeaderFunctionCancelTest) {
+    Url url{server->GetBaseUrl() + "/url_post.html"};
+    Response response = Post(url, HeaderCallback{[](std::string /*header*/, intptr_t /*userdata*/) -> bool { return false; }});
+    EXPECT_EQ(response.error.code, ErrorCode::REQUEST_CANCELLED);
+}
+
+TEST(CallbackDataTests, CallbackHeaderFunctionTextTest) {
+    Url url{server->GetBaseUrl() + "/url_post.html"};
+    std::vector<std::string> expected_headers{"HTTP/1.1 201 Created\r\n", "Content-Type: application/json\r\n", "\r\n"};
+    std::set<std::string> response_headers;
+    Post(url, HeaderCallback{[&response_headers](std::string header, intptr_t /*userdata*/) -> bool {
+             response_headers.insert(header);
+             return true;
+         }});
+    for (std::string& header : expected_headers) {
+        std::cout << header << std::endl;
+        EXPECT_TRUE(response_headers.count(header));
+    }
+}
+
+TEST(CallbackDataTests, CallbackWriteFunctionCancelTest) {
+    Url url{server->GetBaseUrl() + "/url_post.html"};
+    Response response = Post(url, WriteCallback{[](std::string /*header*/, intptr_t /*userdata*/) -> bool { return false; }});
+    EXPECT_EQ(response.error.code, ErrorCode::REQUEST_CANCELLED);
+}
+
+TEST(CallbackDataTests, CallbackWriteFunctionTextTest) {
+    Url url{server->GetBaseUrl() + "/url_post.html"};
+    std::string expected_text{
+            "{\n"
+            "  \"x\": 5\n"
+            "}"};
+    std::string response_text;
+    Post(url, Payload{{"x", "5"}}, WriteCallback{[&response_text](std::string header, intptr_t /*userdata*/) -> bool {
+             response_text.append(header);
+             return true;
+         }});
+    EXPECT_EQ(expected_text, response_text);
+}
+
+TEST(CallbackDataTests, CallbackProgressFunctionCancelTest) {
+    Url url{server->GetBaseUrl() + "/url_post.html"};
+    Response response = Post(url, ProgressCallback{[](size_t /*downloadTotal*/, size_t /*downloadNow*/, size_t /*uploadTotal*/, size_t /*uploadNow*/, intptr_t /*userdata*/) -> bool { return false; }});
+    EXPECT_EQ(response.error.code, ErrorCode::REQUEST_CANCELLED);
+}
+
+TEST(CallbackDataTests, CallbackProgressFunctionTotalTest) {
+    Url url{server->GetBaseUrl() + "/url_post.html"};
+    Body body{"x=5"};
+    size_t response_upload = 0, response_download = 0;
+    Response response = Post(url, body, ProgressCallback{[&](size_t downloadTotal, size_t /*downloadNow*/, size_t uploadTotal, size_t /*uploadNow*/, intptr_t /*userdata*/) -> bool {
+                                 response_upload = uploadTotal;
+                                 response_download = downloadTotal;
+                                 return true;
+                             }});
+    EXPECT_EQ(body.str().length(), response_upload);
+    EXPECT_EQ(response.text.length(), response_download);
+}
+
+TEST(CallbackDataTests, CallbackDebugFunctionTextTest) {
+    Url url{server->GetBaseUrl() + "/url_post.html"};
+    Body body{"x=5"};
+    std::string debug_body;
+    Response response = Post(url, body, DebugCallback{[&](DebugCallback::InfoType type, std::string data, intptr_t /*userdata*/) {
+                                 if (type == DebugCallback::InfoType::DATA_OUT) {
+                                     debug_body = data;
+                                 }
+                             }});
+    EXPECT_EQ(body.str(), debug_body);
+}
+
+int main(int argc, char** argv) {
+    ::testing::InitGoogleTest(&argc, argv);
+    ::testing::AddGlobalTestEnvironment(server);
+    return RUN_ALL_TESTS();
+}