libcruft-util/test/signal.cpp

106 lines
2.6 KiB
C++

#include "signal.hpp"
#include "except.hpp"
#include "tap.hpp"
//-----------------------------------------------------------------------------
void
test_null (cruft::TAP::logger &tap)
{
tap.expect_nothrow ([] {
cruft::signal<void(*)(void)> void_signal;
void_signal ();
}, "void signal");
}
///////////////////////////////////////////////////////////////////////////////
void
increment_uint (unsigned int &val)
{
++val;
}
//-----------------------------------------------------------------------------
void
test_single (cruft::TAP::logger &tap)
{
unsigned int val = 0;
cruft::signal<void(*)(unsigned int&)> void_signal;
auto cookie = void_signal.connect (increment_uint);
void_signal (val);
tap.expect_eq (val, 1u, "single listener");
}
//-----------------------------------------------------------------------------
void
test_double (cruft::TAP::logger &tap)
{
unsigned int val = 0;
cruft::signal<void(*)(unsigned int&)> void_signal;
auto cookie0 = void_signal.connect (increment_uint);
auto cookie1 = void_signal.connect (increment_uint);
void_signal (val);
tap.expect_eq (val, 2u, "double listener");
}
///////////////////////////////////////////////////////////////////////////////
void
test_value_signal (cruft::TAP::logger &tap)
{
cruft::value_signal<unsigned> val;
unsigned passed = 0;
auto cookie = val.connect ([&] (unsigned v) { passed = v; });
val = 42u;
tap.expect_eq (passed, 42u, "value signal, passed value");
unsigned check = val;
tap.expect_eq (check, 42u, "value signal, read value");
}
///////////////////////////////////////////////////////////////////////////////
void
test_parallel_release (cruft::TAP::logger &tap)
{
tap.expect_nothrow ([] {
using function_t = std::function<void(void)>;
cruft::signal<function_t> sig;
cruft::signal<function_t>::cookie a = sig.connect ([&] (void) { a.release (); });
cruft::signal<function_t>::cookie b = sig.connect ([&] (void) { b.release (); });
cruft::signal<function_t>::cookie c = sig.connect ([&] (void) { c.release (); });
cruft::signal<function_t>::cookie d = sig.connect ([&] (void) { d.release (); });
sig ();
}, "parallel release in invocation");
}
///////////////////////////////////////////////////////////////////////////////
#include <iostream>
int
main (int, char **)
{
return cruft::TAP::logger::run ([] (auto &tap) {
test_null (tap);
test_single (tap);
test_double (tap);
test_value_signal (tap);
test_parallel_release (tap);
});
}