| // Copyright 2017 The BoringSSL Authors |
| // |
| // 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 |
| // |
| // https://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 <stdio.h> |
| #include <vector> |
| |
| #include <gtest/gtest.h> |
| |
| #include <openssl/ssl.h> |
| |
| BSSL_NAMESPACE_BEGIN |
| namespace { |
| |
| static void TestCtor(Span<int> s, const int *ptr, size_t size) { |
| EXPECT_EQ(s.data(), ptr); |
| EXPECT_EQ(s.size(), size); |
| } |
| |
| static void TestConstCtor(Span<const int> s, const int *ptr, size_t size) { |
| EXPECT_EQ(s.data(), ptr); |
| EXPECT_EQ(s.size(), size); |
| } |
| |
| TEST(SpanTest, CtorEmpty) { |
| Span<int> s; |
| TestCtor(s, nullptr, 0); |
| } |
| |
| TEST(SpanTest, CtorFromPtrAndSize) { |
| std::vector<int> v = {7, 8, 9, 10}; |
| Span<int> s(v.data(), v.size()); |
| TestCtor(s, v.data(), v.size()); |
| } |
| |
| TEST(SpanTest, CtorFromVector) { |
| std::vector<int> v = {1, 2}; |
| // Const ctor is implicit. |
| TestConstCtor(v, v.data(), v.size()); |
| // Mutable is explicit. |
| Span<int> s(v); |
| TestCtor(s, v.data(), v.size()); |
| } |
| |
| TEST(SpanTest, CtorConstFromArray) { |
| int v[] = {10, 11}; |
| // Array ctor is implicit for const and mutable T. |
| TestConstCtor(v, v, 2); |
| TestCtor(v, v, 2); |
| } |
| |
| TEST(SpanTest, MakeSpan) { |
| std::vector<int> v = {100, 200, 300}; |
| TestCtor(MakeSpan(v), v.data(), v.size()); |
| TestCtor(MakeSpan(v.data(), v.size()), v.data(), v.size()); |
| TestConstCtor(MakeSpan(v.data(), v.size()), v.data(), v.size()); |
| TestConstCtor(MakeSpan(v), v.data(), v.size()); |
| } |
| |
| TEST(SpanTest, MakeConstSpan) { |
| std::vector<int> v = {100, 200, 300}; |
| TestConstCtor(MakeConstSpan(v), v.data(), v.size()); |
| TestConstCtor(MakeConstSpan(v.data(), v.size()), v.data(), v.size()); |
| // But not: |
| // TestConstCtor(MakeSpan(v), v.data(), v.size()); |
| } |
| |
| TEST(SpanTest, Accessor) { |
| std::vector<int> v({42, 23, 5, 101, 80}); |
| Span<int> s(v); |
| for (size_t i = 0; i < s.size(); ++i) { |
| EXPECT_EQ(s[i], v[i]); |
| EXPECT_EQ(s.at(i), v.at(i)); |
| } |
| EXPECT_EQ(s.begin(), v.data()); |
| EXPECT_EQ(s.end(), v.data() + v.size()); |
| } |
| |
| TEST(SpanTest, ConstExpr) { |
| static constexpr int v[] = {1, 2, 3, 4}; |
| constexpr bssl::Span<const int> span1(v); |
| static_assert(span1.size() == 4u, "wrong size"); |
| constexpr bssl::Span<const int> span2 = MakeConstSpan(v); |
| static_assert(span2.size() == 4u, "wrong size"); |
| static_assert(span2.subspan(1).size() == 3u, "wrong size"); |
| static_assert(span2.first(1).size() == 1u, "wrong size"); |
| static_assert(span2.last(1).size() == 1u, "wrong size"); |
| static_assert(span2[0] == 1, "wrong value"); |
| } |
| |
| TEST(SpanDeathTest, BoundsChecks) { |
| // Make an array that's larger than we need, so that a failure to bounds check |
| // won't crash. |
| const int v[] = {1, 2, 3, 4}; |
| Span<const int> span(v, 3); |
| // Out of bounds access. |
| EXPECT_DEATH_IF_SUPPORTED(span[3], ""); |
| EXPECT_DEATH_IF_SUPPORTED(span.subspan(4), ""); |
| EXPECT_DEATH_IF_SUPPORTED(span.first(4), ""); |
| EXPECT_DEATH_IF_SUPPORTED(span.last(4), ""); |
| // Accessing an empty span. |
| Span<const int> empty(v, 0); |
| EXPECT_DEATH_IF_SUPPORTED(empty[0], ""); |
| EXPECT_DEATH_IF_SUPPORTED(empty.front(), ""); |
| EXPECT_DEATH_IF_SUPPORTED(empty.back(), ""); |
| } |
| |
| } // namespace |
| BSSL_NAMESPACE_END |