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xtensor/test/test_xbuffer_adaptor.cpp at master · xtensor-stack/xtensor · GitHub
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/*
**************************************************************************
* Copyright (c) Johan Mabille, Sylvain Corlay and Wolf Vollprecht *
* Copyright (c) QuantStack *
* *
* Distributed under the terms of the BSD 3-Clause License. *
* *
* The full license is in the file LICENSE, distributed with this software. *
***************************************************************************
*/
#
include
"
xtensor/containers/xbuffer_adaptor.hpp
"
#
include
"
test_common_macros.hpp
"
namespace
xt
{
using
buffer_adaptor = xbuffer_adaptor<
double
*>;
using
allocator = std::allocator<
double
>;
using
owner_adaptor = xbuffer_adaptor<
double
*&, acquire_ownership>;
TEST
(xbuffer_adaptor, owner_destructor)
{
size_t
size =
100
;
double
* data = allocator{}.
allocate
(size);
owner_adaptor
adapt
(data, size);
EXPECT_EQ
(data, adapt.
data
());
}
TEST
(xbuffer_adaptor, owner_move)
{
size_t
size =
100
;
double
* data = allocator{}.
allocate
(size);
owner_adaptor
adapt
(data, size);
owner_adaptor
adapt2
(
std::move
(adapt));
EXPECT_EQ
(data, adapt2.
data
());
EXPECT_EQ
(size, adapt2.
size
());
EXPECT_EQ
(
size_t
(
0
), adapt.
size
());
}
TEST
(xbuffer_adaptor, owner_copy_assign)
{
size_t
size1 =
100
;
double
* data1 = allocator{}.
allocate
(size1);
data1[
0
] =
2.5
;
owner_adaptor
adapt1
(data1, size1);
size_t
size2 =
200
;
double
* data2 = allocator{}.
allocate
(size2);
data2[
0
] =
1.2
;
owner_adaptor
adapt2
(data2, size2);
adapt1 = adapt2;
EXPECT_EQ
(adapt1.
size
(), adapt2.
size
());
EXPECT_EQ
(adapt1[
0
], adapt2[
0
]);
}
TEST
(xbuffer_adaptor, owner_move_assign)
{
size_t
size1 =
100
;
double
* data1 = allocator{}.
allocate
(size1);
data1[
0
] =
2.5
;
owner_adaptor
adapt1
(data1, size1);
size_t
size2 =
200
;
double
* data2 = allocator{}.
allocate
(size2);
double
data2_ref =
1.2
;
data2[
0
] = data2_ref;
owner_adaptor
adapt2
(data2, size2);
adapt1 =
std::move
(adapt2);
EXPECT_EQ
(adapt1.
size
(), size2);
EXPECT_EQ
(adapt1[
0
], data2_ref);
}
class
size_check_allocator
:
public
std
::allocator<
size_t
>
{
public:
size_t
*
allocate
(
size_t
n)
{
size_t
* res = std::allocator<
size_t
>::
allocate
(n);
//
store the size into the result so we can
//
check if the size is correct when we deallocate.
res[
0
] = n;
return
res;
}
void
deallocate
(
size_t
* p,
size_t
n)
{
EXPECT_EQ
(p[
0
], n);
return
std::allocator<
size_t
>::
deallocate
(p, n);
}
};
TEST
(xbuffer_adaptor, owner_move_assign_check_size)
{
size_check_allocator custom_allocator;
using
owner_adaptor = xbuffer_adaptor<
size_t
*&, acquire_ownership, size_check_allocator>;
size_t
size1 =
100
;
size_t
* data1 = custom_allocator.
allocate
(size1);
owner_adaptor
adapt1
(data1, size1);
size_t
size2 =
200
;
size_t
* data2 = custom_allocator.
allocate
(size2);
owner_adaptor
adapt2
(data2, size2);
adapt1 = adapt2;
EXPECT_EQ
(adapt1.
size
(), size2);
}
TEST
(xbuffer_adaptor, owner_resize)
{
size_t
size1 =
100
;
double
* data1 = allocator{}.
allocate
(size1);
owner_adaptor
adapt
(data1, size1);
size_t
size2 =
50
;
adapt.
resize
(size2);
EXPECT_EQ
(adapt.
size
(), size2);
}
TEST
(xbuffer_adaptor, owner_iterating)
{
size_t
size =
100
;
double
* data = allocator{}.
allocate
(size);
owner_adaptor
adapt
(data, size);
std::fill
(adapt.
begin
(), adapt.
end
(),
1.2
);
EXPECT_EQ
(data[
0
],
1.2
);
EXPECT_EQ
(data[size /
2
],
1.2
);
EXPECT_EQ
(data[size -
1
],
1.2
);
}
TEST
(xbuffer_adaptor, no_owner_copy)
{
size_t
size =
100
;
double
* data =
new
double
[size];
buffer_adaptor
adapt1
(data, size);
buffer_adaptor
adapt2
(adapt1);
EXPECT_EQ
(adapt1.
size
(), adapt2.
size
());
EXPECT_EQ
(adapt1.
data
(), adapt2.
data
());
delete[]
data;
}
TEST
(xbuffer_adaptor, no_owner_move)
{
size_t
size =
100
;
double
* data =
new
double
[size];
buffer_adaptor
adapt1
(data, size);
buffer_adaptor
adapt2
(
std::move
(adapt1));
EXPECT_EQ
(adapt1.
size
(), adapt2.
size
());
EXPECT_EQ
(adapt1.
data
(), adapt2.
data
());
delete[]
data;
}
TEST
(xbuffer_adaptor, no_owner_copy_assign)
{
size_t
size1 =
100
;
double
* data1 =
new
double
[size1];
buffer_adaptor
adapt1
(data1, size1);
size_t
size2 =
200
;
double
* data2 =
new
double
[size2];
buffer_adaptor
adapt2
(data2, size2);
adapt1 = adapt2;
EXPECT_EQ
(adapt1.
size
(), adapt2.
size
());
EXPECT_EQ
(adapt1.
data
(), adapt2.
data
());
delete[]
data2;
delete[]
data1;
}
TEST
(xbuffer_adaptor, no_owner_move_assign)
{
size_t
size1 =
100
;
double
* data1 =
new
double
[size1];
buffer_adaptor
adapt1
(data1, size1);
size_t
size2 =
200
;
double
* data2 =
new
double
[size2];
buffer_adaptor
adapt2
(data2, size2);
adapt1 =
std::move
(adapt2);
EXPECT_EQ
(adapt1.
size
(), adapt2.
size
());
EXPECT_EQ
(adapt1.
data
(), adapt2.
data
());
delete[]
data2;
delete[]
data1;
}
TEST
(xbuffer_adaptor, no_owner_resize)
{
size_t
size1 =
100
;
double
* data1 =
new
double
[size1];
buffer_adaptor
adapt
(data1, size1);
size_t
size2 =
50
;
XT_EXPECT_THROW
(adapt.
resize
(size2), std::runtime_error);
EXPECT_EQ
(adapt.
size
(), size1);
delete[]
data1;
}
TEST
(xbuffer_adaptor, no_owner_iterating)
{
size_t
size =
100
;
double
* data =
new
double
[size];
buffer_adaptor
adapt
(data, size);
std::fill
(adapt.
begin
(), adapt.
end
(),
1.2
);
EXPECT_EQ
(data[
0
],
1.2
);
EXPECT_EQ
(data[size /
2
],
1.2
);
EXPECT_EQ
(data[size -
1
],
1.2
);
delete[]
data;
}
}
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