/*

Copyright (C) 2015-present The DotCpp Authors.

This file is part of .C++, a native C++ implementation of

popular .NET class library APIs developed to facilitate

code reuse between C# and C++.

http://github.com/dotcpp/dotcpp (source)

http://dotcpp.org (documentation)

Licensed under the Apache License, Version 2.0 (the "License");

you may not use this file except in compliance with the License.

You may obtain a copy of the License at

http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software

distributed under the License is distributed on an "AS IS" BASIS,

WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

See the License for the specific language governing permissions and

limitations under the License.

*/

#include <dot/test/implement.hpp>

#include <approvals/ApprovalTests.hpp>

#include <approvals/Catch.hpp>

#include <dot/system/string.hpp>

#include <dot/system/object.hpp>

namespace dot

{

class base_impl : public virtual object_impl

{

public:

virtual std::string foo()

{

return "base";

}

};

using base = ptr<base_impl>;

base make_base() { return new base_impl; }

class derived_impl : public base_impl

{

public:

virtual std::string foo()

{

return "derived";

}

};

using derived = ptr<derived_impl>;

derived make_derived() { return new derived_impl; }

TEST_CASE("Smoke")

{

base b = make_base();

REQUIRE(b->foo() == "base");

// Check assignment operator

b = make_derived();

REQUIRE(b->foo() == "derived");

// Check ctor from derived

base d = make_derived();

REQUIRE(d->foo() == "derived");

}

TEST_CASE("Cast")

{

base b = make_base();

REQUIRE(b.is<base>() == true);

REQUIRE(b.is<derived>() == false);

REQUIRE(b.as<base>() != nullptr);

REQUIRE(b.as<derived>() == nullptr);

REQUIRE((base)b != nullptr);

CHECK_THROWS_AS(derived(b), std::runtime_error);

base bd = make_derived();

REQUIRE(bd.is<base>() == true);

REQUIRE(bd.is<derived>() == true);

REQUIRE(bd.as<base>() != nullptr);

REQUIRE(bd.as<derived>() != nullptr);

REQUIRE((base)bd != nullptr);

REQUIRE((derived)bd != nullptr);

derived d = make_derived();

REQUIRE(d.is<base>() == true);

REQUIRE(d.is<derived>() == true);

REQUIRE(d.as<base>() != nullptr);

REQUIRE(d.as<derived>() != nullptr);

REQUIRE((base)d != nullptr);

REQUIRE((derived)d != nullptr);

}

}