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#include <opentracing/string_view.h> // test include guard
#include <opentracing/string_view.h>
#define CATCH_CONFIG_MAIN
#include <opentracing/catch2/catch.hpp>
using namespace opentracing;
TEST_CASE("string_view") {
SECTION("A default-constructed string_view is empty.") {
string_view ref;
CHECK(nullptr == ref.data());
CHECK(0 == ref.length());
}
SECTION("string_view can be initialized from a c-string.") {
const char* val = "hello world";
string_view ref(val);
CHECK(val == ref.data());
CHECK(std::strlen(val) == ref.length());
}
SECTION("string_view can be initialized from an std::string.") {
const std::string val = "hello world";
string_view ref(val);
CHECK(val == ref.data());
CHECK(val.length() == ref.length());
}
SECTION("A copied string_view points to the same data as its source.") {
const std::string val = "hello world";
string_view ref(val);
string_view cpy(ref);
CHECK(val == cpy.data());
CHECK(val.length() == cpy.length());
}
SECTION("operator[] can be used to access characters in a string_view") {
string_view s = "abc123";
CHECK(&s[0] == s.data());
CHECK(&s[1] == s.data() + 1);
}
}
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