| // Copyright 2019 The Pigweed 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 "pw_string/format.h" |
| |
| #include <cstdarg> |
| #include <span> |
| |
| #include "gtest/gtest.h" |
| |
| namespace pw::string { |
| namespace { |
| |
| TEST(Format, ValidFormatString_Succeeds) { |
| char buffer[32]; |
| auto result = Format(buffer, "-_-"); |
| |
| EXPECT_EQ(Status::OK, result.status()); |
| EXPECT_EQ(3u, result.size()); |
| EXPECT_STREQ("-_-", buffer); |
| } |
| |
| TEST(Format, ValidFormatStringAndArguments_Succeeds) { |
| char buffer[32]; |
| auto result = Format(buffer, "%d4%s", 123, "5"); |
| |
| EXPECT_EQ(Status::OK, result.status()); |
| EXPECT_EQ(5u, result.size()); |
| EXPECT_STREQ("12345", buffer); |
| } |
| |
| TEST(Format, EmptyBuffer_ReturnsResourceExhausted) { |
| auto result = Format(std::span<char>(), "?"); |
| |
| EXPECT_EQ(Status::RESOURCE_EXHAUSTED, result.status()); |
| EXPECT_EQ(0u, result.size()); |
| } |
| |
| TEST(Format, FormatLargerThanBuffer_ReturnsResourceExhausted) { |
| char buffer[5]; |
| auto result = Format(buffer, "2big!"); |
| |
| EXPECT_EQ(Status::RESOURCE_EXHAUSTED, result.status()); |
| EXPECT_EQ(4u, result.size()); |
| EXPECT_STREQ("2big", buffer); |
| } |
| |
| TEST(Format, ArgumentLargerThanBuffer_ReturnsResourceExhausted) { |
| char buffer[5]; |
| auto result = Format(buffer, "%s", "2big!"); |
| |
| EXPECT_EQ(Status::RESOURCE_EXHAUSTED, result.status()); |
| EXPECT_EQ(4u, result.size()); |
| EXPECT_STREQ("2big", buffer); |
| } |
| |
| StatusWithSize CallFormatWithVaList(std::span<char> buffer, |
| const char* fmt, |
| ...) { |
| va_list args; |
| va_start(args, fmt); |
| |
| StatusWithSize result = FormatVaList(buffer, fmt, args); |
| |
| va_end(args); |
| return result; |
| } |
| |
| TEST(Format, CallFormatWithVaList_CallsCorrectFormatOverload) { |
| char buffer[8]; |
| auto result = CallFormatWithVaList(buffer, "Yo%s", "?!"); |
| |
| EXPECT_EQ(Status::OK, result.status()); |
| EXPECT_EQ(4u, result.size()); |
| EXPECT_STREQ("Yo?!", buffer); |
| } |
| |
| } // namespace |
| } // namespace pw::string |