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xtensor/test/test_xaxis_iterator.cpp at master · xtensor-stack/xtensor · GitHub
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test_xaxis_iterator.cpp
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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/xarray.hpp
"
#
include
"
xtensor/views/xaxis_iterator.hpp
"
#
include
"
test_common_macros.hpp
"
namespace
xt
{
using
std::
size_t
;
xarray<
int
>
get_test_array
()
{
xarray<
int
> res = {
{{
1
,
2
,
3
,
4
}, {
5
,
6
,
7
,
8
}, {
9
,
10
,
11
,
12
}},
{{
13
,
14
,
15
,
16
}, {
17
,
18
,
19
,
20
}, {
21
,
22
,
23
,
24
}}
};
return
res;
}
TEST
(xaxis_iterator, begin)
{
xarray<
int
> a =
get_test_array
();
auto
iter_begin =
axis_begin
(a);
EXPECT_EQ
(
size_t
(
2
), iter_begin->
dimension
());
EXPECT_EQ
(a.
shape
()[
1
], iter_begin->
shape
()[
0
]);
EXPECT_EQ
(a.
shape
()[
2
], iter_begin->
shape
()[
1
]);
EXPECT_EQ
(
a
(
0
,
0
,
0
), (*iter_begin)(
0
,
0
));
EXPECT_EQ
(
a
(
0
,
1
,
1
), (*iter_begin)(
1
,
1
));
EXPECT_EQ
(
a
(
0
,
2
,
3
), (*iter_begin)(
2
,
3
));
}
TEST
(xaxis_iterator, increment)
{
xarray<
int
> a =
get_test_array
();
auto
iter =
axis_begin
(a);
++iter;
EXPECT_EQ
(
size_t
(
2
), iter->
dimension
());
EXPECT_EQ
(a.
shape
()[
1
], iter->
shape
()[
0
]);
EXPECT_EQ
(a.
shape
()[
2
], iter->
shape
()[
1
]);
EXPECT_EQ
(
a
(
1
,
0
,
0
), (*iter)(
0
,
0
));
EXPECT_EQ
(
a
(
1
,
1
,
1
), (*iter)(
1
,
1
));
EXPECT_EQ
(
a
(
1
,
2
,
3
), (*iter)(
2
,
3
));
}
TEST
(xaxis_iterator, end)
{
xarray<
int
> a =
get_test_array
();
auto
iter_begin =
axis_begin
(a,
1u
);
auto
iter_end =
axis_end
(a,
1u
);
auto
dist =
std::distance
(iter_begin, iter_end);
EXPECT_EQ
(
3
, dist);
}
TEST
(xaxis_iterator, end_value)
{
xarray<
int
, layout_type::column_major> a =
get_test_array
();
auto
iter_begin =
axis_begin
(a);
auto
iter_end =
axis_end
(a);
++iter_begin;
++iter_begin;
EXPECT_EQ
(iter_begin, iter_end);
xarray<
int
> b =
get_test_array
();
auto
iter_begin_row =
axis_begin
(b,
2u
);
auto
iter_end_row =
axis_end
(b,
2u
);
++iter_begin_row;
++iter_begin_row;
++iter_begin_row;
++iter_begin_row;
EXPECT_EQ
(iter_begin_row, iter_end_row);
}
TEST
(xaxis_iterator, nested)
{
xarray<
int
> a =
get_test_array
();
auto
iter =
axis_begin
(a);
++iter;
auto
niter =
axis_begin
(*iter);
++niter;
EXPECT_EQ
(
size_t
(
1
), niter->
dimension
());
EXPECT_EQ
(a.
shape
()[
2
], niter->
shape
()[
0
]);
EXPECT_EQ
(
a
(
1
,
1
,
0
), (*niter)(
0
));
EXPECT_EQ
(
a
(
1
,
1
,
1
), (*niter)(
1
));
EXPECT_EQ
(
a
(
1
,
1
,
2
), (*niter)(
2
));
EXPECT_EQ
(
a
(
1
,
1
,
3
), (*niter)(
3
));
}
TEST
(xaxis_iterator, const_array)
{
const
xarray<
int
> a =
get_test_array
();
auto
iter =
axis_begin
(a);
++iter;
EXPECT_EQ
(
size_t
(
2
), iter->
dimension
());
EXPECT_EQ
(a.
shape
()[
1
], iter->
shape
()[
0
]);
EXPECT_EQ
(a.
shape
()[
2
], iter->
shape
()[
1
]);
EXPECT_EQ
(
a
(
1
,
0
,
0
), (*iter)(
0
,
0
));
EXPECT_EQ
(
a
(
1
,
1
,
1
), (*iter)(
1
,
1
));
EXPECT_EQ
(
a
(
1
,
2
,
3
), (*iter)(
2
,
3
));
}
TEST
(xaxis_iterator, axis_0)
{
xarray<
int
> a =
get_test_array
();
auto
iter =
axis_begin
(a,
0
);
EXPECT_EQ
(
a
(
0
,
0
,
0
), (*iter)(
0
,
0
));
EXPECT_EQ
(
a
(
0
,
0
,
1
), (*iter)(
0
,
1
));
EXPECT_EQ
(
a
(
0
,
0
,
2
), (*iter)(
0
,
2
));
EXPECT_EQ
(
a
(
0
,
0
,
3
), (*iter)(
0
,
3
));
EXPECT_EQ
(
a
(
0
,
1
,
0
), (*iter)(
1
,
0
));
EXPECT_EQ
(
a
(
0
,
1
,
1
), (*iter)(
1
,
1
));
EXPECT_EQ
(
a
(
0
,
1
,
2
), (*iter)(
1
,
2
));
EXPECT_EQ
(
a
(
0
,
1
,
3
), (*iter)(
1
,
3
));
EXPECT_EQ
(
a
(
0
,
2
,
0
), (*iter)(
2
,
0
));
EXPECT_EQ
(
a
(
0
,
2
,
1
), (*iter)(
2
,
1
));
EXPECT_EQ
(
a
(
0
,
2
,
2
), (*iter)(
2
,
2
));
EXPECT_EQ
(
a
(
0
,
2
,
3
), (*iter)(
2
,
3
));
++iter;
EXPECT_EQ
(
a
(
1
,
0
,
0
), (*iter)(
0
,
0
));
EXPECT_EQ
(
a
(
1
,
0
,
1
), (*iter)(
0
,
1
));
EXPECT_EQ
(
a
(
1
,
0
,
2
), (*iter)(
0
,
2
));
EXPECT_EQ
(
a
(
1
,
0
,
3
), (*iter)(
0
,
3
));
EXPECT_EQ
(
a
(
1
,
1
,
0
), (*iter)(
1
,
0
));
EXPECT_EQ
(
a
(
1
,
1
,
1
), (*iter)(
1
,
1
));
EXPECT_EQ
(
a
(
1
,
1
,
2
), (*iter)(
1
,
2
));
EXPECT_EQ
(
a
(
1
,
1
,
3
), (*iter)(
1
,
3
));
EXPECT_EQ
(
a
(
1
,
2
,
0
), (*iter)(
2
,
0
));
EXPECT_EQ
(
a
(
1
,
2
,
1
), (*iter)(
2
,
1
));
EXPECT_EQ
(
a
(
1
,
2
,
2
), (*iter)(
2
,
2
));
EXPECT_EQ
(
a
(
1
,
2
,
3
), (*iter)(
2
,
3
));
}
TEST
(xaxis_iterator, axis_1)
{
xarray<
int
> a =
get_test_array
();
auto
iter =
axis_begin
(a,
1u
);
EXPECT_EQ
(
a
(
0
,
0
,
0
), (*iter)(
0
,
0
));
EXPECT_EQ
(
a
(
0
,
0
,
1
), (*iter)(
0
,
1
));
EXPECT_EQ
(
a
(
0
,
0
,
2
), (*iter)(
0
,
2
));
EXPECT_EQ
(
a
(
0
,
0
,
3
), (*iter)(
0
,
3
));
EXPECT_EQ
(
a
(
1
,
0
,
0
), (*iter)(
1
,
0
));
EXPECT_EQ
(
a
(
1
,
0
,
1
), (*iter)(
1
,
1
));
EXPECT_EQ
(
a
(
1
,
0
,
2
), (*iter)(
1
,
2
));
EXPECT_EQ
(
a
(
1
,
0
,
3
), (*iter)(
1
,
3
));
++iter;
EXPECT_EQ
(
a
(
0
,
1
,
0
), (*iter)(
0
,
0
));
EXPECT_EQ
(
a
(
0
,
1
,
1
), (*iter)(
0
,
1
));
EXPECT_EQ
(
a
(
0
,
1
,
2
), (*iter)(
0
,
2
));
EXPECT_EQ
(
a
(
0
,
1
,
3
), (*iter)(
0
,
3
));
EXPECT_EQ
(
a
(
1
,
1
,
0
), (*iter)(
1
,
0
));
EXPECT_EQ
(
a
(
1
,
1
,
1
), (*iter)(
1
,
1
));
EXPECT_EQ
(
a
(
1
,
1
,
2
), (*iter)(
1
,
2
));
EXPECT_EQ
(
a
(
1
,
1
,
3
), (*iter)(
1
,
3
));
++iter;
EXPECT_EQ
(
a
(
0
,
2
,
0
), (*iter)(
0
,
0
));
EXPECT_EQ
(
a
(
0
,
2
,
1
), (*iter)(
0
,
1
));
EXPECT_EQ
(
a
(
0
,
2
,
2
), (*iter)(
0
,
2
));
EXPECT_EQ
(
a
(
0
,
2
,
3
), (*iter)(
0
,
3
));
EXPECT_EQ
(
a
(
1
,
2
,
0
), (*iter)(
1
,
0
));
EXPECT_EQ
(
a
(
1
,
2
,
1
), (*iter)(
1
,
1
));
EXPECT_EQ
(
a
(
1
,
2
,
2
), (*iter)(
1
,
2
));
EXPECT_EQ
(
a
(
1
,
2
,
3
), (*iter)(
1
,
3
));
}
TEST
(xaxis_iterator, axis_2)
{
xarray<
int
> a =
get_test_array
();
auto
iter =
axis_begin
(a,
2u
);
EXPECT_EQ
(
a
(
0
,
0
,
0
), (*iter)(
0
,
0
));
EXPECT_EQ
(
a
(
0
,
1
,
0
), (*iter)(
0
,
1
));
EXPECT_EQ
(
a
(
0
,
2
,
0
), (*iter)(
0
,
2
));
EXPECT_EQ
(
a
(
1
,
0
,
0
), (*iter)(
1
,
0
));
EXPECT_EQ
(
a
(
1
,
1
,
0
), (*iter)(
1
,
1
));
EXPECT_EQ
(
a
(
1
,
2
,
0
), (*iter)(
1
,
2
));
++iter;
EXPECT_EQ
(
a
(
0
,
0
,
1
), (*iter)(
0
,
0
));
EXPECT_EQ
(
a
(
0
,
1
,
1
), (*iter)(
0
,
1
));
EXPECT_EQ
(
a
(
0
,
2
,
1
), (*iter)(
0
,
2
));
EXPECT_EQ
(
a
(
1
,
0
,
1
), (*iter)(
1
,
0
));
EXPECT_EQ
(
a
(
1
,
1
,
1
), (*iter)(
1
,
1
));
EXPECT_EQ
(
a
(
1
,
2
,
1
), (*iter)(
1
,
2
));
++iter;
EXPECT_EQ
(
a
(
0
,
0
,
2
), (*iter)(
0
,
0
));
EXPECT_EQ
(
a
(
0
,
1
,
2
), (*iter)(
0
,
1
));
EXPECT_EQ
(
a
(
0
,
2
,
2
), (*iter)(
0
,
2
));
EXPECT_EQ
(
a
(
1
,
0
,
2
), (*iter)(
1
,
0
));
EXPECT_EQ
(
a
(
1
,
1
,
2
), (*iter)(
1
,
1
));
EXPECT_EQ
(
a
(
1
,
2
,
2
), (*iter)(
1
,
2
));
++iter;
EXPECT_EQ
(
a
(
0
,
0
,
3
), (*iter)(
0
,
0
));
EXPECT_EQ
(
a
(
0
,
1
,
3
), (*iter)(
0
,
1
));
EXPECT_EQ
(
a
(
0
,
2
,
3
), (*iter)(
0
,
2
));
EXPECT_EQ
(
a
(
1
,
0
,
3
), (*iter)(
1
,
0
));
EXPECT_EQ
(
a
(
1
,
1
,
3
), (*iter)(
1
,
1
));
EXPECT_EQ
(
a
(
1
,
2
,
3
), (*iter)(
1
,
2
));
}
}
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