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// This file is part of CAF, the C++ Actor Framework. See the file LICENSE in
// the main distribution directory for license terms and copyright or visit
// https://github.com/actor-framework/actor-framework/blob/master/LICENSE.
#define CAF_SUITE logger
#include "caf/logger.hpp"
#include "core-test.hpp"
#include <ctime>
#include <string>
#include "caf/all.hpp"
using namespace caf;
using namespace std::chrono;
using std::string;
#define CHECK_FUN_PREFIX(PrefixName) \
do { \
auto e = CAF_LOG_MAKE_EVENT(0, "caf", CAF_LOG_LEVEL_DEBUG, ""); \
std::ostringstream oss; \
::caf::logger::render_fun_prefix(oss, e); \
auto prefix = oss.str(); \
if (prefix != PrefixName) \
CAF_ERROR("rendering the prefix of " << e.pretty_fun << " produced " \
<< prefix << " instead of " \
<< PrefixName); \
else \
CHECK_EQ(prefix, PrefixName); \
} while (false)
void global_fun() {
CHECK_FUN_PREFIX("GLOBAL");
}
// Little helper that allows us to write a single check for all compilers.
// Clang expands template parameters in __PRETTY_FUNCTION__, while GCC does
// not. For example, Clang would produce "void foo<int>::bar()", while GCC
// would produce "void foo<T>::bar() [with T = int]". A type called T gives
// us always the same output for the prefix.
struct T {};
namespace {
struct fixture {
fixture() {
cfg.set("caf.scheduler.policy", "testing");
cfg.set("caf.logger.file.verbosity", "debug");
cfg.set("caf.logger.file.path", "");
}
void add(logger::field_type kind) {
lf.emplace_back(logger::field{kind, std::string{}});
}
template <size_t N>
void add(logger::field_type kind, const char (&str)[N]) {
lf.emplace_back(logger::field{kind, std::string{str, str + (N - 1)}});
}
template <class F, class... Ts>
string render(F f, Ts&&... xs) {
std::ostringstream oss;
f(oss, std::forward<Ts>(xs)...);
return oss.str();
}
actor_system_config cfg;
logger::line_format lf;
};
void fun() {
CHECK_FUN_PREFIX("$");
}
const char* ptr_fun(const char* x) {
CHECK_FUN_PREFIX("$");
return x;
}
const int& ref_fun(const int& x) {
CHECK_FUN_PREFIX("$");
return x;
}
template <class T>
struct tpl {
static void run() {
CHECK_FUN_PREFIX("$.tpl<T>");
}
};
namespace foo {
void fun() {
CHECK_FUN_PREFIX("$.foo");
}
const char* ptr_fun(const char* x) {
CHECK_FUN_PREFIX("$.foo");
return x;
}
const int& ref_fun(const int& x) {
CHECK_FUN_PREFIX("$.foo");
return x;
}
template <class T>
struct tpl {
static void run() {
CHECK_FUN_PREFIX("$.foo.tpl<T>");
}
};
} // namespace foo
constexpr const char* file_format = "%r %c %p %a %t %C %M %F:%L %m%n";
} // namespace
BEGIN_FIXTURE_SCOPE(fixture)
// copy construction, copy assign, move construction, move assign
// and finally serialization round-trip
CAF_TEST(parse_default_format_strings) {
actor_system sys{cfg};
add(logger::runtime_field);
add(logger::plain_text_field, " ");
add(logger::category_field);
add(logger::plain_text_field, " ");
add(logger::priority_field);
add(logger::plain_text_field, " ");
add(logger::actor_field);
add(logger::plain_text_field, " ");
add(logger::thread_field);
add(logger::plain_text_field, " ");
add(logger::class_name_field);
add(logger::plain_text_field, " ");
add(logger::method_field);
add(logger::plain_text_field, " ");
add(logger::file_field);
add(logger::plain_text_field, ":");
add(logger::line_field);
add(logger::plain_text_field, " ");
add(logger::message_field);
add(logger::newline_field);
CHECK_EQ(logger::parse_format(file_format), lf);
CHECK_EQ(sys.logger().file_format(), lf);
}
CAF_TEST(rendering) {
// Rendering of time points.
timestamp t0;
time_t t0_t = 0;
char t0_buf[50];
CAF_REQUIRE(strftime(t0_buf, sizeof(t0_buf), "%Y-%m-%dT%H:%M:%S.000",
localtime(&t0_t)));
CHECK_EQ(render(logger::render_date, t0), t0_buf);
// Rendering of events.
logger::event e{
CAF_LOG_LEVEL_WARNING,
42,
"unit_test",
"void ns::foo::bar()",
"bar",
"foo.cpp",
"hello world",
std::this_thread::get_id(),
0,
t0,
};
CHECK_EQ(render(logger::render_fun_name, e), string_view{"bar"});
CHECK_EQ(render(logger::render_fun_prefix, e), string_view{"ns.foo"});
// Exclude %r and %t from rendering test because they are nondeterministic.
actor_system sys{cfg};
auto lf = logger::parse_format("%c %p %a %C %M %F:%L %m");
auto& lg = sys.logger();
using namespace std::placeholders;
auto render_event = bind(&logger::render, &lg, _1, _2, _3);
CHECK_EQ(render(render_event, lf, e),
"unit_test WARN actor0 ns.foo bar foo.cpp:42 hello world");
}
CAF_TEST(render_fun_prefix) {
int i = 42;
global_fun();
fun();
ptr_fun(nullptr);
ref_fun(i);
tpl<T>::run();
foo::fun();
foo::ptr_fun(nullptr);
foo::ref_fun(i);
foo::tpl<T>::run();
}
END_FIXTURE_SCOPE()
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