#include <lw/lib/Strings.hh>
#include <cppunit/extensions/HelperMacros.h>
using namespace lw;


class StringsIteratorTest : public CppUnit::TestFixture
{
	CPPUNIT_TEST_SUITE( StringsIteratorTest );
		CPPUNIT_TEST( testGet );
		CPPUNIT_TEST( testMove );
		CPPUNIT_TEST( testEmpty );
		CPPUNIT_TEST( testCharacters );
		CPPUNIT_TEST( testIndex );

		CPPUNIT_TEST( testCopyCons );
		CPPUNIT_TEST( testCopyAss );
		CPPUNIT_TEST( testMoveCons );
		CPPUNIT_TEST( testMoveAss );
		CPPUNIT_TEST( testSwap );
	CPPUNIT_TEST_SUITE_END( );

public:
	void testGet( );
	void testMove( );
	void testEmpty( );
	void testCharacters( );
	void testIndex( );

	void testCopyCons( );
	void testCopyAss( );
	void testMoveCons( );
	void testMoveAss( );
	void testSwap( );
};
CPPUNIT_TEST_SUITE_REGISTRATION( StringsIteratorTest );

/*----------------------------------------------------------------------------*/

void StringsIteratorTest::testGet( )
{
	T_String str( "wargl" );
	T_StringIterator it( str );
	CPPUNIT_ASSERT( !it.atEnd( ) );
}

void StringsIteratorTest::testMove( )
{
	T_String str( "wargl" );
	T_StringIterator it( str );
	int counter( 0 );
	while ( !it.atEnd( ) ) {
		counter ++;
		it.next( );
	}
	CPPUNIT_ASSERT_EQUAL( 5 , counter );
}

void StringsIteratorTest::testEmpty( )
{
	T_String str;
	T_StringIterator it( str );
	CPPUNIT_ASSERT( it.atEnd( ) );
}

void StringsIteratorTest::testCharacters( )
{
	char const* const s( "wa\xe2\x82\xacrgl" );
	T_String str( s );
	T_StringIterator it( str );
	int counter( 0 );
	while ( !it.atEnd( ) ) {
		T_Character c( it );
		if ( counter < 2 ) {
			CPPUNIT_ASSERT( c == s[ counter ] );
		} else if ( counter == 2 ) {
			CPPUNIT_ASSERT( c == 0x20ac );
		} else {
			CPPUNIT_ASSERT( c == s[ counter + 2 ] );
		}
		counter ++;
		it.next( );
	}
}

void StringsIteratorTest::testIndex( )
{
	char const* const s( "wa\xe2\x82\xacrgl" );
	T_String str( s );
	T_StringIterator it( str );
	uint32_t counter( 0 );
	while ( !it.atEnd( ) ) {
		CPPUNIT_ASSERT_EQUAL( counter , it.index( ) );
		counter ++;
		it.next( );
	}
}

/*----------------------------------------------------------------------------*/

void StringsIteratorTest::testCopyCons( )
{
	T_String str( "wargl" );
	T_StringIterator it( str );
	it.next( );
	T_StringIterator copy( it );
	copy.next( );
	CPPUNIT_ASSERT( T_Character( it ) == 'a' );
	CPPUNIT_ASSERT( T_Character( copy ) == 'r' );
}

void StringsIteratorTest::testCopyAss( )
{
	T_String str( "wargl" );
	T_StringIterator it( str );
	T_StringIterator copy( str );
	it.next( );
	copy = it;
	copy.next( );
	CPPUNIT_ASSERT( T_Character( it ) == 'a' );
	CPPUNIT_ASSERT( T_Character( copy ) == 'r' );
}

void StringsIteratorTest::testMoveCons( )
{
	T_String str( "wargl" );
	T_StringIterator it( str );
	it.next( );
	T_StringIterator copy( std::move( it ) );
	copy.next( );
	CPPUNIT_ASSERT( it.atEnd( ) );
	CPPUNIT_ASSERT( T_Character( copy ) == 'r' );
}

void StringsIteratorTest::testMoveAss( )
{
	T_String str( "wargl" );
	T_StringIterator it( str );
	T_StringIterator copy( str );
	it.next( );
	copy = std::move( it );
	copy.next( );
	CPPUNIT_ASSERT( T_Character( it ) == 'w' );
	CPPUNIT_ASSERT( T_Character( copy ) == 'r' );
}

void StringsIteratorTest::testSwap( )
{
	T_String str( "wargl" );
	T_StringIterator it( str );
	T_StringIterator copy( str );
	it.next( );
	swap( it , copy );
	CPPUNIT_ASSERT( T_Character( it ) == 'w' );
	CPPUNIT_ASSERT( T_Character( copy ) == 'a' );
}