| // Copyright 2021 Google LLC |
| // |
| // 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 "tink/internal/err_util.h" |
| |
| #include <string> |
| |
| #include "gmock/gmock.h" |
| #include "gtest/gtest.h" |
| #include "absl/strings/str_split.h" |
| #include "absl/strings/string_view.h" |
| #include "openssl/bio.h" |
| #include "openssl/err.h" |
| |
| namespace crypto { |
| namespace tink { |
| namespace internal { |
| namespace { |
| |
| using ::testing::AllOf; |
| using ::testing::HasSubstr; |
| using ::testing::IsEmpty; |
| using ::testing::SizeIs; |
| |
| TEST(GetSslErrorsTest, ReturnsExpectedErrorrs) { |
| // Artificially add some errors to OpenSSL/BoringSSL's error queue. |
| #ifdef OPENSSL_IS_BORINGSSL |
| OPENSSL_PUT_ERROR(BIO, BIO_R_UNINITIALIZED); |
| OPENSSL_PUT_ERROR(BIO, BIO_R_WRITE_TO_READ_ONLY_BIO); |
| OPENSSL_PUT_ERROR(BIO, BIO_R_UNSUPPORTED_METHOD); |
| #else |
| BIOerr(BIO_F_BIO_READ_INTERN, BIO_R_UNINITIALIZED); |
| BIOerr(BIO_F_MEM_WRITE, BIO_R_WRITE_TO_READ_ONLY_BIO); |
| BIOerr(BIO_F_BIO_CTRL, BIO_R_UNSUPPORTED_METHOD); |
| #endif |
| std::string error = GetSslErrors(); |
| |
| // OpenSSL/BoringSSL returns each error as a null terminated char*; since we |
| // accumulate each of them into a std::string, the resulting string will be |
| // "double null terminated". So we ignore the last char, and split by \n. |
| auto errors_without_last_char = absl::string_view(error); |
| errors_without_last_char.remove_suffix(1); |
| std::vector<std::string> lines = |
| absl::StrSplit(errors_without_last_char, '\n'); |
| ASSERT_THAT(lines, SizeIs(3)); |
| |
| #ifdef OPENSSL_IS_BORINGSSL |
| std::string uninitialized_str = "UNINITIALIZED"; |
| std::string write_to_read_only_bio_str = "WRITE_TO_READ_ONLY_BIO"; |
| std::string unsupported_method_str = "UNSUPPORTED_METHOD"; |
| #else |
| std::string uninitialized_str = "uninitialized"; |
| std::string write_to_read_only_bio_str = "write to read only BIO"; |
| std::string unsupported_method_str = "unsupported method"; |
| #endif |
| |
| EXPECT_THAT(lines[0], AllOf(HasSubstr("BIO"), HasSubstr(uninitialized_str))); |
| EXPECT_THAT(lines[1], |
| AllOf(HasSubstr("BIO"), HasSubstr(write_to_read_only_bio_str))); |
| EXPECT_THAT(lines[2], |
| AllOf(HasSubstr("BIO"), HasSubstr(unsupported_method_str))); |
| // A second call to GetSslErrors() returns an empty string because the |
| // OpenSSL/BoringSSL error queue is empty. |
| EXPECT_THAT(GetSslErrors(), IsEmpty()); |
| } |
| |
| } // namespace |
| } // namespace internal |
| } // namespace tink |
| } // namespace crypto |