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#include "slice.hpp"
#include <gtest/gtest.h>
TEST(slice, slice)
{
int init[] = {1, 2, 3, 4, 5};
Slice<int> slice(std::begin(init), std::end(init));
EXPECT_EQ(slice.data(), init);
EXPECT_EQ(slice.size(), 5);
Slice<int> head = slice.slice_h(2);
Slice<int> tail = slice.slice_t(2);
EXPECT_EQ(head.size(), 2);
EXPECT_EQ(tail.size(), 3);
EXPECT_EQ(head.front(), 1);
EXPECT_EQ(head.back(), 2);
EXPECT_EQ(tail.front(), 3);
EXPECT_EQ(tail.back(), 5);
head = slice.rslice_h(3);
tail = slice.rslice_t(3);
EXPECT_EQ(head.size(), 2);
EXPECT_EQ(tail.size(), 3);
EXPECT_EQ(head.front(), 1);
EXPECT_EQ(head.back(), 2);
EXPECT_EQ(tail.front(), 3);
EXPECT_EQ(tail.back(), 5);
head = slice.islice_h(slice.begin() + 2);
tail = slice.islice_t(slice.end() - 3);
EXPECT_EQ(head.size(), 2);
EXPECT_EQ(tail.size(), 3);
EXPECT_EQ(head.front(), 1);
EXPECT_EQ(head.back(), 2);
EXPECT_EQ(tail.front(), 3);
EXPECT_EQ(tail.back(), 5);
tail = slice.lslice(1, 3);
EXPECT_EQ(tail.size(), 3);
EXPECT_EQ(tail.front(), 2);
EXPECT_EQ(tail.back(), 4);
tail = slice.pslice(1, 4);
EXPECT_EQ(tail.size(), 3);
EXPECT_EQ(tail.front(), 2);
EXPECT_EQ(tail.back(), 4);
tail = slice.islice(slice.begin() + 1, slice.end() - 1);
EXPECT_EQ(tail.size(), 3);
EXPECT_EQ(tail.front(), 2);
EXPECT_EQ(tail.back(), 4);
head = slice;
while (head)
{
size_t headsize = head.size();
EXPECT_EQ(head.back(), headsize);
EXPECT_EQ(head.pop_back(), headsize);
}
tail = slice;
while (!!tail)
{
size_t tailsize = tail.size();
EXPECT_EQ(tail.front(), 6 - tailsize);
EXPECT_EQ(tail.pop_front(), 6 - tailsize);
}
}
TEST(slice, cast)
{
struct Foo
{
int x;
};
struct Bar : Foo
{
};
Bar bars[2] = {Bar(), Bar()};
Slice<Bar> slice(bars, 2);
Slice<Foo> foos(slice);
EXPECT_EQ(foos.size(), slice.size());
EXPECT_EQ(&foos.end()[-1], &slice.end()[-1]);
}
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