Add lsp_array_* tests

test/lsp_array_test.cpp

@@ -0,0 +1,311 @@
+//
+// lsp_array_test.cpp
+//
+// Copyright 2012, 2017 Peter Dimov
+//
+// Distributed under the Boost Software License, Version 1.0.
+// See accompanying file LICENSE_1_0.txt or copy at
+// http://www.boost.org/LICENSE_1_0.txt
+//
+
+#include <boost/smart_ptr/local_shared_ptr.hpp>
+#include <boost/weak_ptr.hpp>
+#include <boost/enable_shared_from_this.hpp>
+#include <boost/detail/lightweight_test.hpp>
+#include <memory>
+#include <utility>
+
+class X: public boost::enable_shared_from_this< X >
+{
+public:
+
+    static int allocations;
+    static int instances;
+
+    X()
+    {
+        ++instances;
+    }
+
+    ~X()
+    {
+        --instances;
+    }
+
+    void* operator new[]( std::size_t n )
+    {
+        ++allocations;
+        return ::operator new[]( n );
+    }
+
+    void operator delete[]( void* p )
+    {
+        --allocations;
+        ::operator delete[]( p );
+    }
+
+private:
+
+    X( X const& );
+    X& operator=( X const& );
+};
+
+int X::allocations = 0;
+int X::instances = 0;
+
+template< class T> class array_deleter
+{
+public:
+
+    static int calls;
+
+    void operator()( T * p ) const
+    {
+        ++calls;
+        delete[] p;
+    }
+
+private:
+
+    template< class Y > void operator()( Y * p ) const;
+};
+
+template< class T > int array_deleter< T >::calls = 0;
+
+int main()
+{
+    BOOST_TEST( X::allocations == 0 );
+    BOOST_TEST( X::instances == 0 );
+
+    {
+        boost::local_shared_ptr<X[]> px;
+        BOOST_TEST( !px );
+
+        BOOST_TEST( X::allocations == 0 );
+        BOOST_TEST( X::instances == 0 );
+
+        boost::local_shared_ptr<X[]> px2( new X[ 3 ] );
+        BOOST_TEST( px2 );
+
+        try
+        {
+            px2[0].shared_from_this();
+            BOOST_ERROR( "px2[0].shared_from_this() failed to throw" );
+        }
+        catch( boost::bad_weak_ptr const& )
+        {
+        }
+        catch( ... )
+        {
+            BOOST_ERROR( "px2[0].shared_from_this() threw something else than bad_weak_ptr" );
+        }
+
+        BOOST_TEST( X::allocations == 1 );
+        BOOST_TEST( X::instances == 3 );
+
+        {
+            X & rx = px2[ 0 ];
+            BOOST_TEST( &rx == px2.get() );
+        }
+
+        boost::local_shared_ptr<X const[]> px3( px2 );
+        BOOST_TEST( px3 == px2 );
+        BOOST_TEST( !( px2 < px3 ) && !( px3 < px2 ) );
+
+        {
+            X const & rx = px3[ 1 ];
+            BOOST_TEST( &rx == px3.get() + 1 );
+        }
+
+        px3.reset();
+        px3 = px2;
+        BOOST_TEST( px3 == px2 );
+        BOOST_TEST( !( px2 < px3 ) && !( px3 < px2 ) );
+
+        boost::local_shared_ptr<X volatile[]> px4( px2 );
+        BOOST_TEST( px4 == px2 );
+        BOOST_TEST( !( px2 < px4 ) && !( px4 < px2 ) );
+
+        {
+            X volatile & rx = px4[ 2 ];
+            BOOST_TEST( &rx == px4.get() + 2 );
+        }
+
+        px4.reset();
+        px4 = px2;
+        BOOST_TEST( px4 == px2 );
+        BOOST_TEST( !( px2 < px4 ) && !( px4 < px2 ) );
+
+        boost::local_shared_ptr<void> px5( px2 );
+        BOOST_TEST( px5 == px2 );
+        BOOST_TEST( !( px2 < px5 ) && !( px5 < px2 ) );
+
+        px5.reset();
+        px5 = px2;
+        BOOST_TEST( px5 == px2 );
+        BOOST_TEST( !( px2 < px5 ) && !( px5 < px2 ) );
+
+        boost::weak_ptr<X[]> wp( px );
+        BOOST_TEST( wp.lock() == px );
+
+        boost::weak_ptr<X[]> wp2( px2 );
+        BOOST_TEST( wp2.lock() == px2 );
+
+        wp2.reset();
+        wp2 = px2;
+        BOOST_TEST( wp2.lock() == px2 );
+
+        boost::weak_ptr<X const[]> wp3( px2 );
+        BOOST_TEST( wp3.lock() == px2 );
+
+        wp3.reset();
+        wp3 = px2;
+        BOOST_TEST( wp3.lock() == px2 );
+
+        boost::weak_ptr<X volatile[]> wp4( px2 );
+        BOOST_TEST( wp4.lock() == px2 );
+
+        wp4.reset();
+        wp4 = px2;
+        BOOST_TEST( wp4.lock() == px2 );
+
+        boost::weak_ptr<void> wp5( px2 );
+        BOOST_TEST( wp5.lock() == px2 );
+
+        wp5.reset();
+        wp5 = px2;
+        BOOST_TEST( wp5.lock() == px2 );
+
+        px2.reset();
+
+        BOOST_TEST( X::allocations == 1 );
+        BOOST_TEST( X::instances == 3 );
+
+        px3.reset();
+        px4.reset();
+        px5.reset();
+
+        BOOST_TEST( X::allocations == 0 );
+        BOOST_TEST( X::instances == 0 );
+
+        BOOST_TEST( wp2.lock() == 0 );
+        BOOST_TEST( wp3.lock() == 0 );
+        BOOST_TEST( wp4.lock() == 0 );
+        BOOST_TEST( wp5.lock() == 0 );
+    }
+
+#if !defined( BOOST_NO_CXX11_SMART_PTR ) && !defined( BOOST_NO_CXX11_RVALUE_REFERENCES )
+
+    {
+        std::unique_ptr<X[]> px( new X[ 4 ] );
+        BOOST_TEST( X::allocations == 1 );
+        BOOST_TEST( X::instances == 4 );
+
+        boost::local_shared_ptr<X[]> px2( std::move( px ) );
+        BOOST_TEST( X::allocations == 1 );
+        BOOST_TEST( X::instances == 4 );
+        BOOST_TEST( px.get() == 0 );
+
+        try
+        {
+            px2[0].shared_from_this();
+            BOOST_ERROR( "px2[0].shared_from_this() failed to throw" );
+        }
+        catch( boost::bad_weak_ptr const& )
+        {
+        }
+        catch( ... )
+        {
+            BOOST_ERROR( "px2[0].shared_from_this() threw something else than bad_weak_ptr" );
+        }
+
+        px2.reset();
+
+        BOOST_TEST( X::allocations == 0 );
+        BOOST_TEST( X::instances == 0 );
+    }
+
+    {
+        std::unique_ptr<X[]> px( new X[ 4 ] );
+        BOOST_TEST( X::allocations == 1 );
+        BOOST_TEST( X::instances == 4 );
+
+        boost::local_shared_ptr<X[]> px2;
+        px2 = std::move( px );
+        BOOST_TEST( X::allocations == 1 );
+        BOOST_TEST( X::instances == 4 );
+        BOOST_TEST( px.get() == 0 );
+
+        try
+        {
+            px2[0].shared_from_this();
+            BOOST_ERROR( "px2[0].shared_from_this() failed to throw" );
+        }
+        catch( boost::bad_weak_ptr const& )
+        {
+        }
+        catch( ... )
+        {
+            BOOST_ERROR( "px2[0].shared_from_this() threw something else than bad_weak_ptr" );
+        }
+
+        px2.reset();
+
+        BOOST_TEST( X::allocations == 0 );
+        BOOST_TEST( X::instances == 0 );
+    }
+
+#endif
+
+    {
+        boost::local_shared_ptr<X[]> px( new X[ 5 ], array_deleter< X >() );
+        BOOST_TEST( X::allocations == 1 );
+        BOOST_TEST( X::instances == 5 );
+
+        try
+        {
+            px[0].shared_from_this();
+            BOOST_ERROR( "px[0].shared_from_this() failed to throw" );
+        }
+        catch( boost::bad_weak_ptr const& )
+        {
+        }
+        catch( ... )
+        {
+            BOOST_ERROR( "px[0].shared_from_this() threw something else than bad_weak_ptr" );
+        }
+
+        px.reset();
+
+        BOOST_TEST( X::allocations == 0 );
+        BOOST_TEST( X::instances == 0 );
+        BOOST_TEST( array_deleter< X >::calls == 1 );
+    }
+
+    {
+        boost::local_shared_ptr<X[]> px( new X[ 6 ], array_deleter< X >(), std::allocator< X >() );
+        BOOST_TEST( X::allocations == 1 );
+        BOOST_TEST( X::instances == 6 );
+
+        try
+        {
+            px[0].shared_from_this();
+            BOOST_ERROR( "px[0].shared_from_this() failed to throw" );
+        }
+        catch( boost::bad_weak_ptr const& )
+        {
+        }
+        catch( ... )
+        {
+            BOOST_ERROR( "px[0].shared_from_this() threw something else than bad_weak_ptr" );
+        }
+
+        px.reset();
+
+        BOOST_TEST( X::allocations == 0 );
+        BOOST_TEST( X::instances == 0 );
+        BOOST_TEST( array_deleter< X >::calls == 2 );
+    }
+
+    return boost::report_errors();
+}