/**

* Copyright (c) 2018 HERE Europe B.V.

* See the LICENSE file in the root of this project for license details.

*/

#include "ranges.hpp"

#include "test_structures.hpp"

#include <flatdata/flatdata.h>

#include "catch_amalgamated.hpp"

using namespace flatdata;

using namespace test_structures;

TEST_CASE( "Reading from ArrayView", "[ArrayView]" )

{

Vector< AStruct > data( 10 );

for ( size_t i = 0; i < 10; i++ )

{

data[ i ].value = i;

}

ArrayView< AStruct > view = data;

for ( size_t i = 0; i < 10; i++ )

{

REQUIRE( view[ i ].value == i );

}

}

TEST_CASE( "Initializing overlapping ArrayView", "[ArrayView]" )

{

ArrayView< TestIndexType48 > view;

REQUIRE( view.size( ) == 0 );

}

TEST_CASE( "Slicing ArrayView", "[ArrayView]" )

{

Vector< AStruct > data( 10 );

for ( size_t i = 0; i < 10; i++ )

{

data[ i ].value = i;

}

ArrayView< AStruct > view = data;

REQUIRE( view.size( ) == 10 );

REQUIRE( view.slice_after( 2 ).size( ) == 8 );

REQUIRE( view.slice_after( 2 ).front( ).value == 2 );

REQUIRE( view.skip( 2 ).size( ) == 8 );

REQUIRE( view.skip( 2 ).front( ).value == 2 );

REQUIRE( view.skip_last( 2 ).size( ) == 8 );

REQUIRE( view.skip_last( 2 ).front( ).value == 0 );

REQUIRE( view.slice_before( 8 ).size( ) == 8 );

REQUIRE( view.slice_before( 8 ).front( ).value == 0 );

REQUIRE( view.slice( 2, 6 ).size( ) == 6 );

REQUIRE( view.slice( 2, 6 ).front( ).value == 2 );

}

TEST_CASE( "Slicing ArrayView with Ranges", "[ArrayView]" )

{

Vector< n::S > data( 11 );

for ( size_t i = 0; i < 11; i++ )

{

data[ i ].x = i;

}

ArrayView< n::S > view = data;

REQUIRE( view.size( ) == 10 );

REQUIRE( view.slice_after( 2 ).size( ) == 8 );

REQUIRE( view.slice_after( 2 ).front( ).x == 2 );

REQUIRE( view.skip( 2 ).size( ) == 8 );

REQUIRE( view.skip( 2 ).front( ).x == 2 );

REQUIRE( view.skip_last( 2 ).size( ) == 8 );

REQUIRE( view.skip_last( 2 ).front( ).x == 0 );

REQUIRE( view.slice_before( 8 ).size( ) == 8 );

REQUIRE( view.slice_before( 8 ).front( ).x == 0 );

REQUIRE( view.slice( 2, 6 ).size( ) == 6 );

REQUIRE( view.slice( 2, 6 ).front( ).x == 2 );

}

TEST_CASE( "Iterators", "[ArrayView]" )

{

Vector< n::S > data( 11 );

for ( size_t i = 0; i < 11; i++ )

{

data[ i ].x = i;

}

ArrayView< n::S > view = data;

auto iter = view.begin( );

REQUIRE( iter->x == 0 );

iter++;

REQUIRE( iter->x == 1 );

++iter;

REQUIRE( iter->x == 2 );

iter += 2;

REQUIRE( iter->x == 4 );

iter -= 1;

REQUIRE( iter->x == 3 );

auto iter2 = iter++;

REQUIRE( iter2->x == 3 );

REQUIRE( iter->x == 4 );

REQUIRE( iter > view.begin( ) );

REQUIRE( iter < view.end( ) );

}