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ark_runtime_core/libpandabase/tests/span_test.cpp
T
wanyanglan 14c9021696 add ark runtime_core
Signed-off-by: wanyanglan <wanyanglan1@huawei.com>
Change-Id: I2564094cef9c6c41263e37faf9ffbbec14223dc7
2021-09-05 20:53:43 +08:00

127 lines
3.3 KiB
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/*
* Copyright (c) 2021 Huawei Device Co., Ltd.
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "utils/span.h"
#include <array>
#include <gtest/gtest.h>
#include <memory>
#include <string>
#include <vector>
namespace panda::test::span {
template <class T>
std::string ToString(Span<T> s)
{
std::ostringstream oss;
for (const auto &e : s) {
oss << e << " ";
}
return oss.str();
}
template <class T>
Span<T> Double(Span<T> s)
{
for (auto &e : s) {
e *= 2U;
}
return s;
}
TEST(Span, Conversions)
{
int c[] {1, 2, 3};
std::vector v {4, 5, 6};
const std::vector const_v {-4, -5, -6};
std::array a {7, 8, 9};
size_t sz = 3;
auto p = std::make_unique<int[]>(sz);
p[0] = 10;
p[1] = 11;
p[2] = 12;
std::string s = " !\"";
EXPECT_EQ(ToString(Double(Span(c))), "2 4 6 ");
EXPECT_EQ(ToString(Double(Span(v))), "8 10 12 ");
EXPECT_EQ(ToString(Span(const_v)), "-4 -5 -6 ");
EXPECT_EQ(ToString(Double(Span(a))), "14 16 18 ");
EXPECT_EQ(ToString(Double(Span(p.get(), sz))), "20 22 24 ");
EXPECT_EQ(ToString(Double(Span(p.get(), p.get() + 2))), "40 44 ");
EXPECT_EQ(ToString(Double(Span(s))), "@ B D ");
}
TEST(Span, SubSpan)
{
int c[] {1, 2, 3, 4, 5};
auto s = Span(c).SubSpan(1, 3);
auto f = s.First(2);
auto l = s.Last(2);
EXPECT_EQ(ToString(s), "2 3 4 ");
EXPECT_EQ(ToString(f), "2 3 ");
EXPECT_EQ(ToString(l), "3 4 ");
}
TEST(Span, SubSpanT)
{
{
uint8_t buf[] = {1, 1, 1, 1, 1, 0, 0, 0, 2, 0, 0, 0, 0x78, 0x56, 0x34, 0x12, 0xfe, 0xff, 0xff, 0xff};
struct Foo {
uint32_t a;
int32_t b;
};
auto sp = Span(buf);
#ifndef NDEBUG
ASSERT_DEATH(sp.SubSpan<Foo>(4, 3), ".*");
ASSERT_DEATH(sp.SubSpan<Foo>(3, 2), ".*");
#endif
auto sub_sp = sp.SubSpan<Foo>(4, 2);
ASSERT_EQ(sub_sp.size(), 2U);
ASSERT_EQ(sub_sp[0].a, 1U);
ASSERT_EQ(sub_sp[0].b, 2);
ASSERT_EQ(sub_sp[1].a, 0x12345678U);
ASSERT_EQ(sub_sp[1].b, -2);
}
{
uint32_t buf[] = {0x01020304, 0x05060708, 0x090a0b0c};
auto sp = Span(buf);
#ifndef NDEBUG
ASSERT_DEATH(sp.SubSpan<uint16_t>(4, 1), ".*");
#endif
auto sub_sp = sp.SubSpan<uint16_t>(1, 4);
ASSERT_EQ(sub_sp.size(), 4U);
ASSERT_EQ(sub_sp[0], 0x0708);
ASSERT_EQ(sub_sp[1], 0x0506);
ASSERT_EQ(sub_sp[2], 0x0b0c);
ASSERT_EQ(sub_sp[3], 0x090a);
}
}
TEST(Span, AsBytes)
{
const int c1[] {1, 2, 3};
int c2[] {4, 5, 6};
auto cs = Span(c1);
auto s = Span(c2);
EXPECT_EQ(cs.SizeBytes(), 12U);
EXPECT_EQ(AsBytes(cs)[sizeof(int)], static_cast<std::byte>(2));
AsWritableBytes(s)[4] = static_cast<std::byte>(1);
EXPECT_EQ(s[1], 1);
}
} // namespace panda::test::span