Ichthyostega
afa7ca2e4d
The Lumiera »Reference Platform« is now upgraded to Debian/Buster, which provides GCC-14 and Clang-20. Thus the compiler support for C++20 language features seems solid enough, and C++23, while still in ''experimental stage'' can be seen as a complement and addendum. This changeset * upgrades the compile switches for the build system * provides all the necessary adjustments to keep the code base compilable Notable changes: * λ-capture by value now requires explicit qualification how to handle `this` * comparison operators are now handled transparently by the core language, largely obsoleting boost::operators. This change incurs several changes to implicit handling rules and causes lots of ambiguities — which typically pinpoint some long standing design issues, especially related to MObjects and the ''time entities''. Most tweaks done here can be ''considered preliminary'' * unfortunately the upgraded standard ''fails'' to handle **tuple-like** entities in a satisfactory way — rather an ''exposition-only'' concept is introduced, which applies solely to some containers from the STL, thereby breaking some very crucial code in the render entities, which was built upon the notion of ''tuple-like'' entities and the ''tuple protocol''. The solution is to abandon the STL in this respect and **provide an alternative implementation** of the `apply` function and related elements.
794 lines
33 KiB
C++
794 lines
33 KiB
C++
/*
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BusTerm(Test) - cover the building block of the UI-Bus
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Copyright (C)
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2015, Hermann Vosseler <Ichthyostega@web.de>
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**Lumiera** is free software; you can redistribute it and/or modify it
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under the terms of the GNU General Public License as published by the
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Free Software Foundation; either version 2 of the License, or (at your
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option) any later version. See the file COPYING for further details.
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* *****************************************************************/
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/** @file bus-term-test.cpp
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** unit test \ref BusTerm_test
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*/
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#include "lib/test/run.hpp"
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#include "lib/test/test-helper.hpp"
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#include "lib/thread.hpp"
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#include "lib/sync.hpp"
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#include "lib/sync-classlock.hpp"
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#include "include/ui-protocol.hpp"
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#include "stage/ctrl/bus-term.hpp"
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#include "stage/ctrl/state-manager.hpp"
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#include "steam/control/command.hpp"
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#include "test/test-nexus.hpp"
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#include "test/mock-elm.hpp"
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#include "lib/diff/gen-node.hpp"
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#include "lib/diff/mutation-message.hpp"
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#include "lib/idi/entry-id.hpp"
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#include "lib/iter-adapter-stl.hpp"
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#include "lib/iter-stack.hpp"
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#include "lib/call-queue.hpp"
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#include "lib/format-string.hpp"
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#include "lib/format-cout.hpp"
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#include "lib/time/timevalue.hpp"
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#include "lib/luid.h"
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#include "lib/util.hpp"
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#include <boost/lexical_cast.hpp>
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using boost::lexical_cast;
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using lib::Sync;
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using lib::ClassLock;
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using lib::ThreadJoinable;
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using lib::iter_stl::dischargeToSnapshot;
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using lib::IterQueue;
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using lib::IterStack;
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using std::function;
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using util::contains;
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using util::isnil;
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using util::_Fmt;
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namespace stage {
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namespace model{
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namespace test {
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using lib::idi::EntryID;
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using lib::idi::BareEntryID;
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using steam::control::Command;
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using stage::ctrl::StateManager;
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using stage::ctrl::BusTerm;
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using stage::test::MockElm;
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using lib::diff::MutationMessage;
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using lib::diff::TreeDiffLanguage;
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using lib::diff::DiffSource;
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using lib::diff::DiffStep;
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using lib::diff::GenNode;
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using lib::diff::MakeRec;
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using lib::diff::Rec;
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using lib::diff::Ref;
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using lib::time::Time;
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using lib::time::TimeSpan;
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using lib::hash::LuidH;
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using lib::test::EventLog;
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using lib::CallQueue;
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using LERR_(UNBOUND_ARGUMENTS);
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using LERR_(WRONG_TYPE);
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using ID = lib::idi::BareEntryID const&;
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namespace {// test data...
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// --------random-diff-test------
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uint const MAX_RAND_BORGS = 100; // stay below 400, verification export grows quadratic
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uint const MAX_RAND_NUMBS = 500;
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uint const MAX_RAND_DELAY = 5000; // throttle generation, since diff application is slower
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// --------random-diff-test------
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int generator_instances = 0;
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}
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/**************************************************************************//**
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* @test cover the standard node element (terminal element) within the UI-Bus,
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* with the help of an attached mock UI element. Contrary to the related
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* [ui-element test](\ref AbstractTangible_test), here we focus on the bus side
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* of the standard interactions.
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*
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* This test enacts the fundamental generic communication patterns
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* to verify the messaging behaviour
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* - attaching a \ref BusTerm
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* - detaching on element destruction
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* - generate a command invocation
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* - argument passing
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* - capture a _state mark_
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* - replay a _state mark_
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* - cast messages and error states downstream
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* - generic operating of interface states
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* - multithreaded integration test of diff mutation
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*
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* @see AbstractTangible_test
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* @see stage::model::Tangible
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* @see stage::ctrl::BusTerm
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*/
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class BusTerm_test : public Test
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{
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virtual void
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run (Arg)
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{
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seedRand();
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attachNewBusTerm();
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commandInvocation();
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captureStateMark();
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replayStateMark();
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verifyNotifications();
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clearStates();
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pushDiff();
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}
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/** @test build a new BusTerm and verify connectivity.
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* Every [tangible UI-element](\ref Tangible) bears an embedded BusTerm
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* member. Since the latter _requires another, up-link BusTerm_ on construction,
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* connection to the [UI-Bus](\ref ui-bus.hpp) is structurally ensured. Moreover,
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* when hooking up a new UI-element, the initialisation of the embedded BusTerm
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* will cause a down-link connection to be installed into the central routing
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* table within the \ref Nexus, the hub of the UI-Bus. Routing and addressing
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* is based on the UI-element's unique EntryID, destruction of the element,
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* through invocation of BusTerm's dtor, will ensure deregistration
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* from the Hub.
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*/
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void
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attachNewBusTerm()
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{
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MARK_TEST_FUN;
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// our dummy will be linked with this identity
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BareEntryID elmID = EntryID<MockElm>{"zeitgeist"};
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// Access the log on the Test-Nexus hub
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EventLog nexusLog = stage::test::Nexus::startNewLog();
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CHECK (nexusLog.ensureNot("zeitgeist"));
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MockElm mock(elmID);
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CHECK (nexusLog.verifyCall("routeAdd").on("TestNexus").arg(elmID,"Tangible") // Note: invoked from ctor, so it is just a tangible at the moment
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.beforeEvent("TestNexus", "added route to bID-zeitgeist"));
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EventLog elmLog = mock.getLog();
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CHECK (elmLog.verifyCall("ctor").on(&mock)
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.beforeEvent("create", "zeitgeist"));
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// now verify there is indeed bidirectional connectivity...
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CHECK (elmLog.ensureNot("expanded"));
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CHECK (elmLog.ensureNot("doFlash"));
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CHECK (nexusLog.ensureNot("zeitgeist").arg("expand"));
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CHECK (nexusLog.ensureNot("zeitgeist").arg("Flash"));
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// invoke action on element to cause upstream message (with a "state mark")
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mock.slotExpand();
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CHECK (elmLog.verifyEvent("expanded"));
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CHECK (nexusLog.verifyCall("note").on("TestNexus").arg(elmID, "GenNode-ID(\"expand\")-DataCap|«bool»|true"));
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// send a state mark down to the mock element
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stage::test::Nexus::testUI().mark (elmID, GenNode(string{MARK_Flash}, 23));
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CHECK (nexusLog.verifyCall("mark").on("TestNexus").arg(elmID, MARK_Flash)
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.beforeEvent("TestNexus", "mark to bID-zeitgeist"));
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CHECK (elmLog.verifyCall("doFlash").on("zeitgeist"));
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// kill the zeitgeist and verify disconnection
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mock.kill();
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CHECK (elmLog.verifyEvent("destroy","zeitgeist"));
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CHECK (nexusLog.verifyCall("routeDetach").on("TestNexus").arg(elmID)
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.beforeEvent("TestNexus", "removed route to bID-zeitgeist"));
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stage::test::Nexus::testUI().mark (elmID, GenNode({MARK_Flash}, 88));
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CHECK (nexusLog.verify("removed route to bID-zeitgeist")
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.beforeCall("mark").on("TestNexus").arg(elmID, MARK_Flash)
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.beforeEvent("warn","discarding mark to unknown bID-zeitgeist"));
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CHECK (elmLog.ensureNot("Flash")
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.afterEvent("destroy","zeitgeist"));
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cout << "____Probe-Log_________________\n"
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<< util::join(elmLog, "\n")
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<< "\n───╼━━━━━━━━━╾────────────────"<<endl;
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cout << "____Nexus-Log_________________\n"
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<< util::join(stage::test::Nexus::getLog(), "\n")
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<< "\n───╼━━━━━━━━━╾────────────────"<<endl;
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}
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/** @test perform the full command binding and invocation protocol */
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void
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commandInvocation()
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{
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MARK_TEST_FUN
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stage::test::Nexus::startNewLog();
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Symbol cmd = stage::test::Nexus::prepareMockCmd<string, TimeSpan, LuidH>();
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MockElm mock("uiElm");
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// random command arguments...
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string text {lib::test::randStr(12)};
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TimeSpan clip (Time(1,2,3), lib::test::randTime());
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LuidH luid;
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// we cannot invoke commands without binding required arguments
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VERIFY_ERROR (WRONG_TYPE, mock.invoke(cmd) );
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// proper argument typing is ensured while dispatching the bind message.
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VERIFY_ERROR (WRONG_TYPE, mock.invoke(cmd, Rec({"lalala"})) );
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// command can't be issued, since it's still unbound
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CHECK (not Command::canExec(cmd));
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mock.invoke (cmd, text, clip, luid);
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CHECK (Command::canExec(cmd));
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CHECK (stage::test::Nexus::wasBound(cmd, text, clip, luid));
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CHECK (not stage::test::Nexus::wasBound(cmd, "lololo"));
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CHECK (stage::test::Nexus::wasInvoked(cmd));
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CHECK (stage::test::Nexus::wasInvoked(cmd, text, clip, luid));
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CHECK (not stage::test::Nexus::wasInvoked(cmd, " huh ", clip, luid));
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CHECK (not stage::test::Nexus::wasInvoked(cmd, text, clip));
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// Mock commands are automatically unique
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auto cmdX = stage::test::Nexus::prepareMockCmd<>();
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auto cmdY = stage::test::Nexus::prepareMockCmd<>();
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CHECK (cmd != cmdX);
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CHECK (cmd != cmdY);
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CHECK (not stage::test::Nexus::wasInvoked(cmdX));
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CHECK (not stage::test::Nexus::wasInvoked(cmdY));
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cout << "____Nexus-Log_________________\n"
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<< util::join(stage::test::Nexus::getLog(), "\n")
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<< "\n───╼━━━━━━━━━╾────────────────"<<endl;
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stage::test::Nexus::setCommandHandler(); // deinstall custom command handler
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}
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/** @test collect state mark notifications from bus
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* We use a test version of the PresentationStateManager,
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* based on the same building blocks as _the real thing_ */
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void
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captureStateMark()
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{
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MARK_TEST_FUN
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stage::test::Nexus::startNewLog();
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StateManager& stateManager = stage::test::Nexus::useMockStateManager();
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MockElm mockA("alpha"); BareEntryID alpha = mockA.getID();
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MockElm mockB("bravo"); BareEntryID bravo = mockB.getID();
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MockElm mockC("charly"); BareEntryID charly = mockC.getID();
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mockA.slotExpand();
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mockB.slotExpand();
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mockB.slotCollapse();
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CHECK (stateManager.currentState(alpha, "expand") == GenNode("expand", true ));
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CHECK (stateManager.currentState(bravo, "expand") == GenNode("expand", false ));
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// handling of missing information
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CHECK (stateManager.currentState(charly, "expand") == Ref::NO); // no data recorded yet
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CHECK (stateManager.currentState(bravo, "extinct") == Ref::NO); // unknown property
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EntryID<MockElm> bruno("bruno");
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CHECK (stateManager.currentState(bruno, "expand") == Ref::NO); // who knows bruno?
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mockC.slotExpand();
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CHECK (stateManager.currentState(charly, "expand") == GenNode("expand", true ));
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// error states can be sticky
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mockC.markErr("overinflated");
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CHECK (stateManager.currentState(charly, "Error") == GenNode("Error", "overinflated"));
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mockC.reset();
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CHECK (stateManager.currentState(charly, "expand") == Ref::NO); // back to void
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cout << "____Nexus-Log_________________\n"
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<< util::join(stage::test::Nexus::getLog(), "\n")
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<< "\n───╼━━━━━━━━━╾────────────────"<<endl;
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}
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/** @test replay previously captured state information" */
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void
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replayStateMark()
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{
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MARK_TEST_FUN
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StateManager& stateManager = stage::test::Nexus::getMockStateManager();
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MockElm mockA("alpha");
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// no "bravo" this time
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MockElm mockC("charly");
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CHECK (not mockA.isExpanded());
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CHECK (not mockC.isTouched());
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BareEntryID alpha = mockA.getID();
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stateManager.replayState (alpha, "expand");
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CHECK (mockA.isExpanded());
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auto& uiBus = stage::test::Nexus::testUI();
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uiBus.mark (mockA.getID(), GenNode{"expand", false});
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CHECK (not mockA.isExpanded());
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CHECK (mockA.isTouched());
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stateManager.replayAllState ("expand");
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CHECK (mockA.isExpanded());
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CHECK (not mockC.isExpanded());
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CHECK (not mockC.isTouched());
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}
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/** @test send notifications to a distinct element, or as broadcast. */
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void
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verifyNotifications()
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{
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MARK_TEST_FUN
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EventLog nexusLog = stage::test::Nexus::startNewLog();
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MockElm mockA("alpha"); BareEntryID alpha = mockA.getID(); mockA.joinLog (nexusLog);
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MockElm mockB("bravo"); BareEntryID bravo = mockB.getID(); mockB.joinLog (nexusLog);
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MockElm mockC("charly"); BareEntryID charly = mockC.getID(); mockC.joinLog (nexusLog);
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auto& uiBus = stage::test::Nexus::testUI();
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CHECK (not mockA.isTouched());
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CHECK (not mockB.isTouched());
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CHECK (not mockC.isTouched());
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uiBus.mark (alpha, GenNode{"Message", "Centauri"});
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uiBus.mark (bravo, GenNode{"Flash", true});
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uiBus.mark (charly, GenNode{"Message", "Delta"});
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uiBus.mark (charly, GenNode{"Error", "Echo"});
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CHECK ( mockA.isTouched());
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CHECK (not mockB.isTouched());
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CHECK ( mockC.isTouched());
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CHECK (not mockA.isError());
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CHECK (not mockB.isError());
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CHECK ( mockC.isError());
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CHECK ("Centauri" == mockA.getMessage());
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CHECK ("Delta" == mockC.getMessage());
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CHECK ("Echo" == mockC.getError());
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// verify the message passing in the combined log...
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CHECK (nexusLog.verifyEvent("create", "alpha")
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.beforeCall("mark").on("TestNexus").arg("alpha", "Centauri") // bus API invoked
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.beforeCall("doMsg").on("alpha").arg("Centauri") // handler on target invoked
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.beforeEvent("mark", "Centauri") // target action activated
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.beforeEvent("TestNexus","delivered mark to bID-alpha")); // dispatch done within UI-Bus
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CHECK (nexusLog.verifyEvent("TestNexus","delivered mark to bID-alpha")
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.beforeCall("mark").on("TestNexus").arg("bravo", "GenNode-ID(\"Flash\")-DataCap|«bool»|true")
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.beforeCall("doFlash").on("bravo")
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.beforeEvent("TestNexus","delivered mark to bID-bravo"));
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// NOTE: calls are passed down synchronously, in one hop, and in sequence
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CHECK (nexusLog.verifyEvent("TestNexus","delivered mark to bID-bravo")
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.beforeCall("mark").on("TestNexus").arg("charly", "GenNode-ID(\"Message\")-DataCap|«string»|Delta")
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.beforeCall("doMsg").on("charly").arg("Delta")
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.beforeEvent("mark", "Delta").id("Message")
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.beforeEvent("TestNexus","delivered mark to bID-charly")
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.beforeCall("mark").on("TestNexus").arg("charly", "GenNode-ID(\"Error\")-DataCap|«string»|Echo")
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.beforeCall("doErr").on("charly").arg("Echo")
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.beforeEvent("mark", "Echo").id("Error")
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.beforeEvent("TestNexus","delivered mark to bID-charly"));
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// broadcast message
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uiBus.markAll (GenNode{"Message", "Foxtrot"});
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CHECK (not mockA.isError());
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CHECK (not mockB.isError());
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CHECK ( mockC.isError());
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CHECK ( mockA.isTouched());
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CHECK ( mockB.isTouched());
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CHECK ( mockC.isTouched());
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CHECK ("Foxtrot" == mockA.getMessage());
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CHECK ("Foxtrot" == mockB.getMessage());
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CHECK ("Foxtrot" == mockC.getMessage());
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CHECK ( "" == mockA.getError());
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CHECK ( "" == mockB.getError());
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CHECK ( "Echo" == mockC.getError());
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CHECK (nexusLog.verifyEvent("mark", "Echo").id("Error")
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.beforeCall("markAll").on("TestNexus").arg("Foxtrot")
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.beforeEvent("Broadcast", "Foxtrot")
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.beforeCall("mark").on("TestNexus").arg("bravo", "GenNode-ID(\"Message\")-DataCap|«string»|Foxtrot")
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.beforeCall("doMsg").on("bravo").arg("Foxtrot")
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.beforeEvent("TestNexus", "broadcasted mark to 3 terminals"));
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// the order of dispatch is unspecified,
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// but we know a regular mark call sequence happens for each connected terminal
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CHECK (nexusLog.verifyCall("markAll").on("TestNexus").arg("Foxtrot")
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.beforeCall("mark").on("TestNexus").arg("alpha", "Foxtrot")
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.beforeCall("doMsg").on("alpha").arg("Foxtrot")
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.beforeEvent("TestNexus", "successfully broadcasted"));
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CHECK (nexusLog.verifyCall("markAll").on("TestNexus").arg("Foxtrot")
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.beforeCall("mark").on("TestNexus").arg("bravo", "Foxtrot")
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.beforeCall("doMsg").on("bravo").arg("Foxtrot")
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.beforeEvent("TestNexus", "successfully broadcasted"));
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CHECK (nexusLog.verifyCall("markAll").on("TestNexus").arg("Foxtrot")
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.beforeCall("mark").on("TestNexus").arg("charly", "Foxtrot")
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.beforeCall("doMsg").on("charly").arg("Foxtrot")
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.beforeEvent("TestNexus", "successfully broadcasted"));
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cout << "____Nexus-Log_________________\n"
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<< util::join(nexusLog, "\n")
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<< "\n───╼━━━━━━━━━╾────────────────"<<endl;
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}
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/** @test broadcast various degrees of state reset */
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void
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clearStates()
|
||
{
|
||
MARK_TEST_FUN
|
||
EventLog nexusLog = stage::test::Nexus::startNewLog();
|
||
|
||
MockElm mockA("alpha"); BareEntryID alpha = mockA.getID(); mockA.joinLog (nexusLog);
|
||
MockElm mockB("bravo"); BareEntryID bravo = mockB.getID(); mockB.joinLog (nexusLog);
|
||
MockElm mockC("charly"); BareEntryID charly = mockC.getID(); mockC.joinLog (nexusLog);
|
||
|
||
auto& uiBus = stage::test::Nexus::testUI();
|
||
|
||
CHECK (not mockA.isTouched());
|
||
CHECK (not mockB.isTouched());
|
||
CHECK (not mockC.isTouched());
|
||
|
||
mockB.slotExpand();
|
||
uiBus.mark (alpha, GenNode{"Message", "Centauri"});
|
||
uiBus.mark (charly, GenNode{"Message", "Delta"});
|
||
uiBus.mark (charly, GenNode{"Error", "Echo"});
|
||
|
||
CHECK (mockB.isExpanded());
|
||
CHECK (mockC.isError());
|
||
CHECK ("Delta" == mockC.getMessage());
|
||
CHECK ("Centauri" == mockA.getMessage());
|
||
|
||
// reset all notification messages
|
||
uiBus.markAll (GenNode{"clearMsg", true});
|
||
CHECK (mockB.isExpanded());
|
||
CHECK (mockC.isError());
|
||
CHECK (isnil (mockA.getMessage()));
|
||
CHECK (isnil (mockC.getMessage()));
|
||
CHECK ("Echo" == mockC.getError());
|
||
|
||
uiBus.mark (bravo, GenNode{"Message", "miss"});
|
||
mockA.slotExpand();
|
||
mockA.slotCollapse();
|
||
|
||
auto& stateManager = stage::test::Nexus::getMockStateManager();
|
||
CHECK (stateManager.currentState(alpha, "expand") == GenNode("expand", false ));
|
||
CHECK (stateManager.currentState(bravo, "expand") == GenNode("expand", true ));
|
||
CHECK (stateManager.currentState(charly,"expand") == Ref::NO);
|
||
CHECK (stateManager.currentState(charly, "Error") == GenNode("Error", "Echo")); // sticky error state was recorded
|
||
|
||
// reset error state(s)
|
||
uiBus.markAll (GenNode{"clearErr", true});
|
||
CHECK (not mockA.isExpanded());
|
||
CHECK (mockB.isExpanded());
|
||
CHECK ("miss" == mockB.getMessage());
|
||
CHECK (not mockC.isError());
|
||
|
||
CHECK (stateManager.currentState(alpha, "expand") == GenNode("expand", false ));
|
||
CHECK (stateManager.currentState(bravo, "expand") == GenNode("expand", true ));
|
||
CHECK (stateManager.currentState(charly,"expand") == Ref::NO);
|
||
CHECK (stateManager.currentState(charly, "Error") == Ref::NO); // sticky error state was cleared,
|
||
// because charly sent a clearErr state mark notification back
|
||
|
||
// send global sweeping reset
|
||
uiBus.markAll (GenNode{"reset", true});
|
||
|
||
CHECK (not mockA.isTouched());
|
||
CHECK (not mockB.isTouched());
|
||
CHECK (not mockC.isTouched());
|
||
|
||
CHECK (not mockA.isExpanded());
|
||
CHECK (not mockB.isExpanded());
|
||
|
||
CHECK (isnil (mockA.getMessage()));
|
||
CHECK (isnil (mockB.getMessage()));
|
||
CHECK (isnil (mockC.getMessage()));
|
||
|
||
CHECK (stateManager.currentState(alpha, "expand") == Ref::NO);
|
||
CHECK (stateManager.currentState(bravo, "expand") == Ref::NO);
|
||
CHECK (stateManager.currentState(charly, "expand") == Ref::NO);
|
||
CHECK (stateManager.currentState(charly, "Error" ) == Ref::NO);
|
||
|
||
|
||
cout << "____Nexus-Log_________________\n"
|
||
<< util::join(nexusLog, "\n")
|
||
<< "\n───╼━━━━━━━━━╾────────────────"<<endl;
|
||
|
||
stage::test::Nexus::setStateMarkHandler(); // deinstall custom state mark handler
|
||
}
|
||
|
||
|
||
|
||
|
||
|
||
/**
|
||
* @test integration test of mutation by diff message.
|
||
* Since this test focuses on the bus side of standard interactions,
|
||
* it seems indicated to simulate the complete invocation situation,
|
||
* which involves passing thread boundaries. The main thread running
|
||
* this test shall enact the role of the UI event thread (since the
|
||
* UI-Bus in the real application is confined to this UI thread).
|
||
* Thus we'll start another thread to enact the role of the Session,
|
||
* to produce diff messages and "cast" them towards the UI.
|
||
* @note a defining property of this whole interaction is the fact that
|
||
* the diff is _pulled asynchronously,_ which means the actual diff
|
||
* generation happens on callback from the UI. Access to any "session"
|
||
* data needs to be protected by lock in such a situation.
|
||
*/
|
||
void
|
||
pushDiff()
|
||
{
|
||
MARK_TEST_FUN
|
||
|
||
struct SessionThread
|
||
: Sync<>
|
||
, ThreadJoinable<>
|
||
{
|
||
// shared data
|
||
uint64_t borgChecksum_ = 0;
|
||
IterStack<uint> sessionBorgs_;
|
||
|
||
// access to shared session data
|
||
void
|
||
scheduleBorg (uint id)
|
||
{
|
||
Lock sync{this};
|
||
borgChecksum_ += id;
|
||
sessionBorgs_.push(id);
|
||
}
|
||
|
||
auto
|
||
dispatchBorgs()
|
||
{
|
||
Lock sync{this};
|
||
return dischargeToSnapshot (sessionBorgs_);
|
||
}
|
||
|
||
|
||
|
||
/**
|
||
* Independent heap allocated diff generator.
|
||
* Implements the IterSource<DiffStep> interface
|
||
* and will be pulled from the GUI-Thread for actually
|
||
* generating the diff. At this point, it needs to access
|
||
* the shared session data with proper locking, and derive
|
||
* a representation of the "changes" in diff format
|
||
*/
|
||
struct BorgGenerator
|
||
: util::NonCopyable
|
||
, TreeDiffLanguage
|
||
, DiffSource
|
||
{
|
||
uint generatorID_;
|
||
SessionThread& theCube_;
|
||
IterQueue<DiffStep> steps_;
|
||
|
||
BorgGenerator (SessionThread& motherShip, uint id)
|
||
: generatorID_{id}
|
||
, theCube_{motherShip}
|
||
{
|
||
ClassLock<BorgGenerator> sync;
|
||
++generator_instances;
|
||
}
|
||
~BorgGenerator()
|
||
{
|
||
ClassLock<BorgGenerator> sync;
|
||
--generator_instances;
|
||
}
|
||
|
||
|
||
/* == Interface IterSource<DiffStep> == */
|
||
|
||
virtual DiffStep*
|
||
firstResult () override
|
||
{
|
||
REQUIRE (not steps_);
|
||
auto plannedBorgs = theCube_.dispatchBorgs();
|
||
uint max = plannedBorgs.size();
|
||
uint cur = 0;
|
||
|
||
_Fmt borgName{"%d of %d ≺%03d.gen%03d≻"};
|
||
|
||
|
||
steps_.feed (after(Ref::ATTRIBS)); // important: retain all existing attributes
|
||
for (uint id : plannedBorgs) // Generate diff to inject a flock of Borg
|
||
{
|
||
GenNode borg = MakeRec().genNode(borgName % ++cur % max % id % generatorID_);
|
||
steps_.feed (ins(borg));
|
||
steps_.feed (mut(borg)); // open nested scope for this Borg
|
||
steps_.feed ( ins(GenNode{"borgID", int(id)}));
|
||
steps_.feed (emu(borg)); // close nested scope
|
||
}
|
||
steps_.feed (after(Ref::END)); // important: fast-forward and accept already existing Borgs
|
||
|
||
return & *steps_; // the IterSource protocol requires us to return a ptr to current element
|
||
}
|
||
|
||
|
||
virtual void
|
||
nextResult (DiffStep*& pos) override
|
||
{
|
||
if (!pos) return;
|
||
if (steps_) ++steps_;
|
||
if (steps_)
|
||
pos = & *steps_; // pointer to current element
|
||
else
|
||
pos = NULL; // signal iteration end
|
||
}
|
||
};
|
||
|
||
|
||
/**
|
||
* launch the Session Thread and start injecting Borgs
|
||
*/
|
||
SessionThread(function<void(DiffSource*)> notifyGUI)
|
||
: ThreadJoinable{"BusTerm_test: asynchronous diff mutation"
|
||
, [this,notifyGUI]
|
||
{
|
||
uint cnt = randGen_.i(MAX_RAND_BORGS);
|
||
for (uint i=0; i<cnt; ++i)
|
||
{
|
||
uint delay = randGen_.i(MAX_RAND_DELAY);
|
||
uint id = randGen_.i(MAX_RAND_NUMBS);
|
||
usleep (delay);
|
||
scheduleBorg (id);
|
||
notifyGUI (new BorgGenerator{*this, i});
|
||
}
|
||
}}
|
||
{ }
|
||
|
||
private:
|
||
lib::Random randGen_{lib::seedFromDefaultGen()};
|
||
};
|
||
|
||
|
||
|
||
EventLog nexusLog = stage::test::Nexus::startNewLog();
|
||
|
||
// the simulated »GUI model«
|
||
// — to be infested by hosts of Borg sent via Diff-Message...
|
||
MockElm rootMock("alpha zero");
|
||
ID rootID = rootMock.getID();
|
||
|
||
rootMock.attrib["α"] = "Quadrant";
|
||
CHECK ("Quadrant" == rootMock.attrib["α"]);
|
||
CHECK (isnil (rootMock.scope));
|
||
|
||
CHECK (0 == generator_instances);
|
||
|
||
|
||
// The final part in the puzzle is to dispatch the diff messages into the UI
|
||
// In the real application, this operation is provided by the NotificationService.
|
||
// It has access to the UI-Bus, but has to ensure all bus operations are actually
|
||
// performed on the UI event thread.
|
||
auto& uiBus = stage::test::Nexus::testUI();
|
||
CallQueue uiDispatcher;
|
||
auto notifyGUI = [&](DiffSource* diffGenerator)
|
||
{
|
||
uiDispatcher.feed ([&, diffGenerator]()
|
||
{
|
||
// apply and consume diff message stored within closure
|
||
uiBus.change (rootID, MutationMessage{diffGenerator});
|
||
});
|
||
};
|
||
|
||
|
||
|
||
//----start-multithreaded-mutation---
|
||
SessionThread session{notifyGUI};
|
||
usleep (2 * MAX_RAND_DELAY);
|
||
while (not isnil(uiDispatcher))
|
||
{
|
||
usleep (100);
|
||
uiDispatcher.invoke();
|
||
}
|
||
auto ok = session.join();
|
||
//------end-multithreaded-mutation---
|
||
CHECK (ok);
|
||
|
||
// on rare occasions we (consumer thread)
|
||
// prematurely empty the queue...
|
||
while (not isnil(uiDispatcher))
|
||
{
|
||
uiDispatcher.invoke();
|
||
}
|
||
|
||
|
||
// now verify rootMock has been properly assimilated...
|
||
uint generatedBorgs = rootMock.scope.size();
|
||
|
||
// root and all Borg child nodes are connected to the UI-Bus
|
||
CHECK (1 + generatedBorgs == stage::test::Nexus::size());
|
||
|
||
uint64_t borgChecksum = 0;
|
||
for (uint i=0; i<generatedBorgs; ++i)
|
||
{
|
||
MockElm& borg = *rootMock.scope[i];
|
||
CHECK (contains (borg.attrib, "borgID"));
|
||
string borgID = borg.attrib["borgID"];
|
||
borgChecksum += lexical_cast<int> (borgID);
|
||
string childID = borg.getID().getSym();
|
||
CHECK (contains (childID, borgID));
|
||
CHECK (contains (childID, " of ")); // e.g. "3 of 5"
|
||
|
||
CHECK (nexusLog.verifyCall("routeAdd").arg(rootMock.getID(), memLocation(rootMock)) // rootMock was attached to Nexus
|
||
.beforeCall("change") .argMatch(rootMock.getID(), // diff message sent via UI-Bus
|
||
"after.+?_ATTRIBS_.+?" // verify diff pattern generated for each Borg
|
||
"ins.+?"+childID+".+?"
|
||
"mut.+?"+childID+".+?"
|
||
"ins.+?borgID.+?"+borgID+".+?"
|
||
"emu.+?"+childID)
|
||
.beforeCall("routeAdd").arg(borg.getID(), memLocation(borg)) // Borg was inserted as child and attached to Nexus
|
||
.beforeEvent("applied diff to "+string(rootMock.getID()))
|
||
); ////////////////////////////////////////////////////////TICKET #1158
|
||
}
|
||
|
||
CHECK (rootMock.attrib["α"] == "Quadrant"); // attribute alpha was preserved while injecting all those Borg
|
||
|
||
|
||
// sanity checks
|
||
CHECK (borgChecksum == session.borgChecksum_); // no Borgs got lost
|
||
CHECK (0 == generator_instances); // no generator instance leaks
|
||
|
||
|
||
|
||
cout << "____Event-Log_________________\n"
|
||
<< util::join(rootMock.getLog(), "\n")
|
||
<< "\n───╼━━━━━━━━━╾────────────────"<<endl;
|
||
|
||
cout << "____Nexus-Log_________________\n"
|
||
<< util::join(nexusLog, "\n")
|
||
<< "\n───╼━━━━━━━━━╾────────────────"<<endl;
|
||
}
|
||
|
||
|
||
static string
|
||
memLocation (Tangible& uiElm)
|
||
{
|
||
return lib::idi::instanceTypeID (&uiElm);
|
||
}
|
||
};
|
||
|
||
|
||
/** Register this test class... */
|
||
LAUNCHER (BusTerm_test, "unit stage");
|
||
|
||
|
||
}}} // namespace stage::model::test
|