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Diffstat (limited to 'indra/llcommon/tests/apply_test.cpp')
| -rw-r--r-- | indra/llcommon/tests/apply_test.cpp | 240 |
1 files changed, 240 insertions, 0 deletions
diff --git a/indra/llcommon/tests/apply_test.cpp b/indra/llcommon/tests/apply_test.cpp new file mode 100644 index 0000000000..56b497e0c8 --- /dev/null +++ b/indra/llcommon/tests/apply_test.cpp @@ -0,0 +1,240 @@ +/** + * @file apply_test.cpp + * @author Nat Goodspeed + * @date 2022-12-19 + * @brief Test for apply. + * + * $LicenseInfo:firstyear=2022&license=viewerlgpl$ + * Copyright (c) 2022, Linden Research, Inc. + * $/LicenseInfo$ + */ + +// Precompiled header +#include "linden_common.h" +// associated header +#include "apply.h" +// STL headers +// std headers +#include <iomanip> +// external library headers +// other Linden headers +#include "llsd.h" +#include "llsdutil.h" +#include <array> +#include <string> +#include <vector> + +// for ensure_equals +std::ostream& operator<<(std::ostream& out, const std::vector<std::string>& stringvec) +{ + const char* delim = "["; + for (const auto& str : stringvec) + { + out << delim << std::quoted(str); + delim = ", "; + } + return out << ']'; +} + +// the above must be declared BEFORE ensure_equals(std::vector<std::string>) +#include "../test/lltut.h" + +/***************************************************************************** +* TUT +*****************************************************************************/ +namespace tut +{ + namespace statics + { + /*------------------------------ data ------------------------------*/ + // Although we're using types from the LLSD namespace, we're not + // constructing LLSD values, but rather instances of the C++ types + // supported by LLSD. + static LLSD::Boolean b{true}; + static LLSD::Integer i{17}; + static LLSD::Real f{3.14}; + static LLSD::String s{ "hello" }; + static LLSD::UUID uu{ "baadf00d-dead-beef-baad-feedb0ef" }; + static LLSD::Date dt{ "2022-12-19" }; + static LLSD::URI uri{ "http://secondlife.com" }; + static LLSD::Binary bin{ 0x01, 0x02, 0x03, 0x04, 0x05 }; + + static std::vector<LLSD::String> quick + { + "The", "quick", "brown", "fox", "etc." + }; + + static std::array<int, 5> fibs + { + 0, 1, 1, 2, 3 + }; + + // ensure that apply() actually reaches the target method -- + // lack of ensure_equals() failure could be due to no-op apply() + bool called{ false }; + // capture calls from collect() + std::vector<std::string> collected; + + /*------------------------- test functions -------------------------*/ + void various(LLSD::Boolean b, LLSD::Integer i, LLSD::Real f, const LLSD::String& s, + const LLSD::UUID& uu, const LLSD::Date& dt, + const LLSD::URI& uri, const LLSD::Binary& bin) + { + called = true; + ensure_equals( "b mismatch", b, statics::b); + ensure_equals( "i mismatch", i, statics::i); + ensure_equals( "f mismatch", f, statics::f); + ensure_equals( "s mismatch", s, statics::s); + ensure_equals( "uu mismatch", uu, statics::uu); + ensure_equals( "dt mismatch", dt, statics::dt); + ensure_equals("uri mismatch", uri, statics::uri); + ensure_equals("bin mismatch", bin, statics::bin); + } + + void strings(std::string s0, std::string s1, std::string s2, std::string s3, std::string s4) + { + called = true; + ensure_equals("s0 mismatch", s0, statics::quick[0]); + ensure_equals("s1 mismatch", s1, statics::quick[1]); + ensure_equals("s2 mismatch", s2, statics::quick[2]); + ensure_equals("s3 mismatch", s3, statics::quick[3]); + ensure_equals("s4 mismatch", s4, statics::quick[4]); + } + + void ints(int i0, int i1, int i2, int i3, int i4) + { + called = true; + ensure_equals("i0 mismatch", i0, statics::fibs[0]); + ensure_equals("i1 mismatch", i1, statics::fibs[1]); + ensure_equals("i2 mismatch", i2, statics::fibs[2]); + ensure_equals("i3 mismatch", i3, statics::fibs[3]); + ensure_equals("i4 mismatch", i4, statics::fibs[4]); + } + + void sdfunc(const LLSD& sd) + { + called = true; + ensure_equals("sd mismatch", sd.asInteger(), statics::i); + } + + void intfunc(int i) + { + called = true; + ensure_equals("i mismatch", i, statics::i); + } + + void voidfunc() + { + called = true; + } + + // recursion tail + void collect() + { + called = true; + } + + // collect(arbitrary) + template <typename... ARGS> + void collect(const std::string& first, ARGS&&... rest) + { + statics::collected.push_back(first); + collect(std::forward<ARGS>(rest)...); + } + } // namespace statics + + struct apply_data + { + apply_data() + { + // reset called before each test + statics::called = false; + statics::collected.clear(); + } + }; + typedef test_group<apply_data> apply_group; + typedef apply_group::object object; + apply_group applygrp("apply"); + + template<> template<> + void object::test<1>() + { + set_test_name("apply(tuple)"); + LL::apply(statics::various, + std::make_tuple(statics::b, statics::i, statics::f, statics::s, + statics::uu, statics::dt, statics::uri, statics::bin)); + ensure("apply(tuple) failed", statics::called); + } + + template<> template<> + void object::test<2>() + { + set_test_name("apply(array)"); + LL::apply(statics::ints, statics::fibs); + ensure("apply(array) failed", statics::called); + } + + template<> template<> + void object::test<3>() + { + set_test_name("apply(vector)"); + LL::apply(statics::strings, statics::quick); + ensure("apply(vector) failed", statics::called); + } + + // The various apply(LLSD) tests exercise only the success cases because + // the failure cases trigger assert() fail, which is hard to catch. + template<> template<> + void object::test<4>() + { + set_test_name("apply(LLSD())"); + LL::apply(statics::voidfunc, LLSD()); + ensure("apply(LLSD()) failed", statics::called); + } + + template<> template<> + void object::test<5>() + { + set_test_name("apply(fn(int), LLSD scalar)"); + LL::apply(statics::intfunc, LLSD(statics::i)); + ensure("apply(fn(int), LLSD scalar) failed", statics::called); + } + + template<> template<> + void object::test<6>() + { + set_test_name("apply(fn(LLSD), LLSD scalar)"); + // This test verifies that LLSDParam<LLSD> doesn't send the compiler + // into infinite recursion when the target is itself LLSD. + LL::apply(statics::sdfunc, LLSD(statics::i)); + ensure("apply(fn(LLSD), LLSD scalar) failed", statics::called); + } + + template<> template<> + void object::test<7>() + { + set_test_name("apply(LLSD array)"); + LL::apply(statics::various, + llsd::array(statics::b, statics::i, statics::f, statics::s, + statics::uu, statics::dt, statics::uri, statics::bin)); + ensure("apply(LLSD array) failed", statics::called); + } + + template<> template<> + void object::test<8>() + { + set_test_name("VAPPLY()"); + // Make a std::array<std::string> from statics::quick. We can't call a + // variadic function with a data structure of dynamic length. + std::array<std::string, 5> strray; + for (size_t i = 0; i < strray.size(); ++i) + strray[i] = statics::quick[i]; + // This doesn't work: the compiler doesn't know which overload of + // collect() to pass to LL::apply(). + // LL::apply(statics::collect, strray); + // That's what VAPPLY() is for. + VAPPLY(statics::collect, strray); + ensure("VAPPLY() failed", statics::called); + ensure_equals("collected mismatch", statics::collected, statics::quick); + } +} // namespace tut |