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Crow/unittest.cpp

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//#define FLASK_ENABLE_LOGGING
#include <iostream>
#include <vector>
#include "routing.h"
#include "utility.h"
#include "flask.h"
#include "json.h"
using namespace std;
using namespace flask;
struct Test { Test(); virtual void test() = 0; };
vector<Test*> tests;
Test::Test() { tests.push_back(this); }
bool failed__ = false;
void error_print()
{
cerr << endl;
}
template <typename A, typename ...Args>
void error_print(const A& a, Args...args)
{
cerr<<a;
error_print(args...);
}
template <typename ...Args>
void fail(Args...args) { error_print(args...);failed__ = true; }
#define ASSERT_TRUE(x) if (!(x)) fail("Assert fail: expected ", #x, " is true, at " __FILE__ ":",__LINE__)
#define ASSERT_EQUAL(a, b) if ((a) != (b)) fail("Assert fail: expected ", (a), " actual " , (b), ", " #a " == " #b ", at " __FILE__ ":",__LINE__)
#define ASSERT_NOTEQUAL(a, b) if ((a) == (b)) fail("Assert fail: not expected ", (a), ", " #a " != " #b ", at " __FILE__ ":",__LINE__)
#define ASSERT_THROW(x) \
try \
{ \
x; \
fail("Assert fail: exception should be thrown"); \
} \
catch(std::exception&) \
{ \
}
#define TEST(x) struct test##x:public Test{void test();}x##_; \
void test##x::test()
#define DISABLE_TEST(x) struct test##x{void test();}x##_; \
void test##x::test()
TEST(Rule)
{
TaggedRule<> r("/http/");
r.name("abc");
// empty handler - fail to validate
try
{
r.validate();
fail("empty handler should fail to validate");
}
catch(runtime_error& e)
{
}
int x = 0;
// registering handler
r([&x]{x = 1;return "";});
r.validate();
// executing handler
ASSERT_EQUAL(0, x);
r.handle(request(), routing_params());
ASSERT_EQUAL(1, x);
// registering handler with request argument
r([&x](const flask::request&){x = 2;return "";});
r.validate();
// executing handler
ASSERT_EQUAL(1, x);
r.handle(request(), routing_params());
ASSERT_EQUAL(2, x);
}
TEST(ParameterTagging)
{
static_assert(black_magic::is_valid("<int><int><int>"), "valid url");
static_assert(!black_magic::is_valid("<int><int<<int>"), "invalid url");
static_assert(!black_magic::is_valid("nt>"), "invalid url");
ASSERT_EQUAL(1, black_magic::get_parameter_tag("<int>"));
ASSERT_EQUAL(2, black_magic::get_parameter_tag("<uint>"));
ASSERT_EQUAL(3, black_magic::get_parameter_tag("<float>"));
ASSERT_EQUAL(3, black_magic::get_parameter_tag("<double>"));
ASSERT_EQUAL(4, black_magic::get_parameter_tag("<str>"));
ASSERT_EQUAL(4, black_magic::get_parameter_tag("<string>"));
ASSERT_EQUAL(5, black_magic::get_parameter_tag("<path>"));
ASSERT_EQUAL(6*6+6+1, black_magic::get_parameter_tag("<int><int><int>"));
ASSERT_EQUAL(6*6+6+2, black_magic::get_parameter_tag("<uint><int><int>"));
ASSERT_EQUAL(6*6+6*3+2, black_magic::get_parameter_tag("<uint><double><int>"));
// url definition parsed in compile time, build into *one number*, and given to template argument
static_assert(std::is_same<black_magic::S<uint64_t, double, int64_t>, black_magic::arguments<6*6+6*3+2>::type>::value, "tag to type container");
}
TEST(RoutingTest)
{
Flask app;
int A{};
uint32_t B{};
double C{};
string D{};
string E{};
FLASK_ROUTE(app, "/0/<uint>")
([&](uint32_t b){
B = b;
return "OK";
});
FLASK_ROUTE(app, "/1/<int>/<uint>")
([&](int a, uint32_t b){
A = a; B = b;
return "OK";
});
FLASK_ROUTE(app, "/4/<int>/<uint>/<double>/<string>")
([&](int a, uint32_t b, double c, string d){
A = a; B = b; C = c; D = d;
return "OK";
});
FLASK_ROUTE(app, "/5/<int>/<uint>/<double>/<string>/<path>")
([&](int a, uint32_t b, double c, string d, string e){
A = a; B = b; C = c; D = d; E = e;
return "OK";
});
app.validate();
//app.debug_print();
{
request req;
req.url = "/0/1001999";
auto res = app.handle(req);
ASSERT_EQUAL(200, res.code);
ASSERT_EQUAL(1001999, B);
}
{
request req;
req.url = "/1/-100/1999";
auto res = app.handle(req);
ASSERT_EQUAL(200, res.code);
ASSERT_EQUAL(-100, A);
ASSERT_EQUAL(1999, B);
}
{
request req;
req.url = "/4/5000/3/-2.71828/hellhere";
req.headers["TestHeader"] = "Value";
auto res = app.handle(req);
ASSERT_EQUAL(200, res.code);
ASSERT_EQUAL(5000, A);
ASSERT_EQUAL(3, B);
ASSERT_EQUAL(-2.71828, C);
ASSERT_EQUAL("hellhere", D);
}
{
request req;
req.url = "/5/-5/999/3.141592/hello_there/a/b/c/d";
req.headers["TestHeader"] = "Value";
auto res = app.handle(req);
ASSERT_EQUAL(200, res.code);
ASSERT_EQUAL(-5, A);
ASSERT_EQUAL(999, B);
ASSERT_EQUAL(3.141592, C);
ASSERT_EQUAL("hello_there", D);
ASSERT_EQUAL("a/b/c/d", E);
}
}
TEST(simple_response_routing_params)
{
ASSERT_EQUAL(100, response(100).code);
ASSERT_EQUAL(200, response("Hello there").code);
ASSERT_EQUAL(500, response(500, "Internal Error?").code);
routing_params rp;
rp.int_params.push_back(1);
rp.int_params.push_back(5);
rp.uint_params.push_back(2);
rp.double_params.push_back(3);
rp.string_params.push_back("hello");
ASSERT_EQUAL(1, rp.get<int64_t>(0));
ASSERT_EQUAL(5, rp.get<int64_t>(1));
ASSERT_EQUAL(2, rp.get<uint64_t>(0));
ASSERT_EQUAL(3, rp.get<double>(0));
ASSERT_EQUAL("hello", rp.get<string>(0));
}
TEST(server_handling_error_request)
{
static char buf[2048];
Flask app;
FLASK_ROUTE(app, "/")([]{return "A";});
Server<Flask> server(&app, 45451);
auto _ = async(launch::async, [&]{server.run();});
std::string sendmsg = "POX";
asio::io_service is;
{
asio::ip::tcp::socket c(is);
c.connect(asio::ip::tcp::endpoint(asio::ip::address::from_string("127.0.0.1"), 45451));
c.send(asio::buffer(sendmsg));
try
{
c.receive(asio::buffer(buf, 2048));
fail();
}
catch(std::exception& e)
{
std::cerr << e.what() << std::endl;
}
}
server.stop();
}
TEST(multi_server)
{
static char buf[2048];
Flask app1, app2;
FLASK_ROUTE(app1, "/")([]{return "A";});
FLASK_ROUTE(app2, "/")([]{return "B";});
Server<Flask> server1(&app1, 45451);
Server<Flask> server2(&app2, 45452);
auto _ = async(launch::async, [&]{server1.run();});
auto _2 = async(launch::async, [&]{server2.run();});
std::string sendmsg = "POST /\r\nContent-Length:3\r\nX-HeaderTest: 123\r\n\r\nA=B\r\n";
asio::io_service is;
{
asio::ip::tcp::socket c(is);
c.connect(asio::ip::tcp::endpoint(asio::ip::address::from_string("127.0.0.1"), 45451));
c.send(asio::buffer(sendmsg));
size_t recved = c.receive(asio::buffer(buf, 2048));
ASSERT_EQUAL('A', buf[recved-1]);
}
{
asio::ip::tcp::socket c(is);
c.connect(asio::ip::tcp::endpoint(asio::ip::address::from_string("127.0.0.1"), 45452));
for(auto ch:sendmsg)
{
char buf[1] = {ch};
std::cerr << ch << '(' << (int)ch<<')'<<std::endl;
c.send(asio::buffer(buf));
}
size_t recved = c.receive(asio::buffer(buf, 2048));
ASSERT_EQUAL('B', buf[recved-1]);
}
server1.stop();
server2.stop();
}
TEST(json_read)
{
{
const char* json_error_tests[] =
{
"{} 3", "{{}", "{3}",
"3.4.5", "+3", "3-2", "00", "03", "1e3e3", "1e+.3",
"nll", "f", "t",
"{\"x\":3,}",
"{\"x\"}",
"{\"x\":3 q}",
"{\"x\":[3 4]}",
"{\"x\":[\"",
"{\"x\":[[], 4],\"y\",}",
"{\"x\":[3",
"{\"x\":[ null, false, true}",
};
for(auto s:json_error_tests)
{
auto x = json::load(s);
if (x)
{
fail("should fail to parse ", s);
return;
}
}
}
auto x = json::load(R"({"message":"hello, world"})");
if (!x)
fail("fail to parse");
ASSERT_EQUAL("hello, world", x["message"]);
ASSERT_EQUAL(1, x.size());
ASSERT_EQUAL(false, x.has("mess"));
ASSERT_THROW(x["mess"]);
ASSERT_THROW(3 == x["message"]);
ASSERT_THROW(x["message"].size());
std::string s = R"({"int":3, "ints" :[1,2,3,4,5] })";
auto y = json::load(s);
ASSERT_EQUAL(3, y["int"]);
ASSERT_EQUAL(3.0, y["int"]);
ASSERT_NOTEQUAL(3.01, y["int"]);
ASSERT_EQUAL(5, y["ints"].size());
ASSERT_EQUAL(1, y["ints"][0]);
ASSERT_EQUAL(2, y["ints"][1]);
ASSERT_EQUAL(3, y["ints"][2]);
ASSERT_EQUAL(4, y["ints"][3]);
ASSERT_EQUAL(5, y["ints"][4]);
ASSERT_EQUAL(1u, y["ints"][0]);
ASSERT_EQUAL(1.f, y["ints"][0]);
int q = (int)y["ints"][1];
ASSERT_EQUAL(2, q);
q = y["ints"][2].i();
ASSERT_EQUAL(3, q);
}
TEST(json_write)
{
json::wvalue x;
x["message"] = "hello world";
ASSERT_EQUAL(R"({"message":"hello world"})", json::dump(x));
x["message"] = std::string("string value");
ASSERT_EQUAL(R"({"message":"string value"})", json::dump(x));
x["message"]["x"] = 3;
ASSERT_EQUAL(R"({"message":{"x":3}})", json::dump(x));
x["message"]["y"] = 5;
ASSERT_TRUE(R"({"message":{"x":3,"y":5}})" == json::dump(x) || R"({"message":{"y":5,"x":3}})" == json::dump(x));
x["message"] = 5.5;
ASSERT_EQUAL(R"({"message":5.5})", json::dump(x));
json::wvalue y;
y["scores"][0] = 1;
y["scores"][1] = "king";
y["scores"][2] = 3.5;
ASSERT_EQUAL(R"({"scores":[1,"king",3.5]})", json::dump(y));
y["scores"][2][0] = "real";
y["scores"][2][1] = false;
y["scores"][2][2] = true;
ASSERT_EQUAL(R"({"scores":[1,"king",["real",false,true]]})", json::dump(y));
y["scores"]["a"]["b"]["c"] = nullptr;
ASSERT_EQUAL(R"({"scores":{"a":{"b":{"c":null}}}})", json::dump(y));
}
int testmain()
{
bool failed = false;
for(auto t:tests)
{
failed__ = false;
try
{
//cerr << typeid(*t).name() << endl;
t->test();
}
catch(std::exception& e)
{
fail(e.what());
}
if (failed__)
{
cerr << "F";
failed = true;
}
else
cerr << ".";
}
cerr<<endl;
return failed ? -1 : 0;
}
int main()
{
return testmain();
}
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