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#include "catch.hpp"
#include "FWCore/Utilities/interface/OftenEmptyCString.h"
#include <cstring>
TEST_CASE("test edm::OftenEmptyCString", "[OftenEmptyCString]") {
SECTION("Constructors") {
SECTION("default") {
edm::OftenEmptyCString s;
REQUIRE(s.c_str() != nullptr);
REQUIRE(s.c_str()[0] == '\0');
}
SECTION("from const *") {
SECTION("nullptr") {
edm::OftenEmptyCString s(nullptr);
REQUIRE(s.c_str() != nullptr);
REQUIRE(s.c_str()[0] == '\0');
}
SECTION("empty") {
const char* kEmpty = "";
edm::OftenEmptyCString s(kEmpty);
REQUIRE(s.c_str() != nullptr);
REQUIRE(s.c_str() != kEmpty);
REQUIRE(s.c_str()[0] == '\0');
}
SECTION("non empty string") {
const char* kValue = "something";
edm::OftenEmptyCString s(kValue);
REQUIRE(s.c_str() != nullptr);
REQUIRE(s.c_str() != kValue);
REQUIRE(strncmp(kValue, s.c_str(), 9) == 0);
REQUIRE(strlen(kValue) == strlen(s.c_str()));
}
}
SECTION("Copy") {
SECTION("from non empty") {
edm::OftenEmptyCString s("something");
edm::OftenEmptyCString copy(s);
REQUIRE(s.c_str() != copy.c_str());
REQUIRE(strcmp(s.c_str(), copy.c_str()) == 0);
}
SECTION("from default") {
edm::OftenEmptyCString s;
edm::OftenEmptyCString copy(s);
REQUIRE(s.c_str() == copy.c_str());
REQUIRE(s.c_str() != nullptr);
REQUIRE(strlen(s.c_str()) == 0);
}
}
SECTION("Move") {
SECTION("from non empty") {
edm::OftenEmptyCString s("something");
edm::OftenEmptyCString copy(std::move(s));
REQUIRE(s.c_str() != copy.c_str());
REQUIRE(s.c_str() == nullptr);
REQUIRE(strcmp("something", copy.c_str()) == 0);
}
SECTION("from default") {
edm::OftenEmptyCString s;
edm::OftenEmptyCString copy(std::move(s));
REQUIRE(s.c_str() == nullptr);
REQUIRE(copy.c_str() == edm::OftenEmptyCString().c_str());
}
}
}
SECTION("operator=") {
SECTION("copy version") {
SECTION("from non empty to non empty") {
edm::OftenEmptyCString s("something");
edm::OftenEmptyCString copy("else");
copy = s;
REQUIRE(s.c_str() != copy.c_str());
REQUIRE(strcmp("something", copy.c_str()) == 0);
REQUIRE(strcmp(s.c_str(), copy.c_str()) == 0);
}
SECTION("from default to non empty") {
edm::OftenEmptyCString s;
edm::OftenEmptyCString copy("original");
copy = s;
REQUIRE(strcmp(s.c_str(), copy.c_str()) == 0);
}
SECTION("from non empty to empty") {
edm::OftenEmptyCString s("something");
edm::OftenEmptyCString copy;
copy = s;
REQUIRE(s.c_str() != copy.c_str());
REQUIRE(strcmp("something", copy.c_str()) == 0);
REQUIRE(strcmp(s.c_str(), copy.c_str()) == 0);
}
}
SECTION("move version") {
SECTION("from non empty to non empty") {
edm::OftenEmptyCString s("something");
edm::OftenEmptyCString copy("else");
copy = std::move(s);
REQUIRE(s.c_str() != copy.c_str());
REQUIRE(s.c_str() == nullptr);
REQUIRE(strcmp("something", copy.c_str()) == 0);
}
SECTION("from default to non empty") {
edm::OftenEmptyCString s;
edm::OftenEmptyCString copy("original");
copy = std::move(s);
REQUIRE(copy.c_str() != nullptr);
REQUIRE(copy.c_str()[0] == '\0');
REQUIRE(s.c_str() == nullptr);
}
SECTION("from non empty to empty") {
edm::OftenEmptyCString s("something");
edm::OftenEmptyCString copy;
copy = std::move(s);
REQUIRE(s.c_str() != copy.c_str());
REQUIRE(s.c_str() == nullptr);
REQUIRE(strcmp("something", copy.c_str()) == 0);
}
}
}
}
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