Connect FLTK shell to JACK engine controls and status
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14 changed files with 691 additions and 45 deletions
204
tests/integration/test_gui.cpp
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204
tests/integration/test_gui.cpp
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#include "../../src/gui/main_window.hpp"
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#include <FL/Fl.H>
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#include <FL/Fl_Box.H>
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#include <FL/Fl_Button.H>
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#include <FL/Fl_Group.H>
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#include <FL/Fl_Menu_Bar.H>
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#include <FL/Fl_Tabs.H>
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#include <chrono>
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#include <cstdio>
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#include <cstring>
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#include <initializer_list>
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/* Fake only the public C backend boundary. Real FLTK widgets, callbacks and
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* timers run under Xvfb; no server/device is required or touched. */
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struct xtc_backend { int running = 0; };
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namespace {
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xtc_backend handle;
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xtc_result open_result = XTC_OK, start_result = XTC_OK, stop_result = XTC_OK, close_result = XTC_OK;
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xtc_result status_result = XTC_OK;
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xtc_backend_status engine_status = {};
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bool partial_open = false;
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unsigned int opens = 0, starts = 0, stops = 0, closes = 0, collects = 0, alive = 0;
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int failures = 0;
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#define CHECK(c) do { if (!(c)) { std::fprintf(stderr,"FAIL %s:%d: %s\n",__FILE__,__LINE__,#c); ++failures; } } while (0)
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void pump()
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{
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const auto end = std::chrono::steady_clock::now() + std::chrono::milliseconds(180);
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while (std::chrono::steady_clock::now() < end) Fl::wait(0.02);
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}
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Fl_Widget *find(Fl_Group *group, const char *label)
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{
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for (int i = 0; i < group->children(); ++i) {
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Fl_Widget *child = group->child(i);
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if (child->label() != nullptr && std::strcmp(child->label(), label) == 0) return child;
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auto *nested = dynamic_cast<Fl_Group *>(child);
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if (nested != nullptr) if (auto *match = find(nested, label)) return match;
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}
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return nullptr;
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}
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bool contains(Fl_Group *group, const char *text)
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{
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for (int i = 0; i < group->children(); ++i) {
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Fl_Widget *child = group->child(i);
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if (child->label() != nullptr && std::strstr(child->label(), text) != nullptr) return true;
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if (auto *nested = dynamic_cast<Fl_Group *>(child)) if (contains(nested, text)) return true;
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}
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return false;
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}
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void press(Fl_Widget *widget)
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{
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CHECK(widget != nullptr);
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if (widget != nullptr) widget->do_callback();
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}
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void reset()
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{
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CHECK(alive == 0U);
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open_result = start_result = stop_result = close_result = status_result = XTC_OK;
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engine_status = {};
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engine_status.sample_rate = 48000U;
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engine_status.buffer_frames = 1024U;
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partial_open = false;
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}
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}
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extern "C" {
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xtc_result xtc_backend_open(const xtc_backend_config *config, xtc_backend **out)
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{
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CHECK(config->kind == XTC_BACKEND_JACK && config->channel_count == 1U);
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++opens;
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*out = open_result == XTC_OK || partial_open ? &handle : nullptr;
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if (*out != nullptr) { ++alive; handle.running = 0; }
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return open_result;
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}
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xtc_result xtc_backend_close(xtc_backend *backend)
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{
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if (backend == nullptr) return XTC_OK;
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++closes;
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if (close_result == XTC_OK) { CHECK(alive == 1U); --alive; handle.running = 0; }
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return close_result;
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}
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xtc_result xtc_backend_start(xtc_backend *backend)
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{ CHECK(backend == &handle); ++starts; if (start_result == XTC_OK) handle.running = 1; return start_result; }
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xtc_result xtc_backend_stop(xtc_backend *backend)
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{ CHECK(backend == &handle); ++stops; if (stop_result == XTC_OK) handle.running = 0; return stop_result; }
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xtc_result xtc_backend_get_status(const xtc_backend *backend, xtc_backend_status *status)
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{
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CHECK(backend == &handle && alive == 1U);
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*status = engine_status;
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status->running = handle.running && !status->server_lost;
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return status_result;
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}
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void xtc_backend_collect(xtc_backend *backend)
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{ CHECK(backend == &handle && alive == 1U); ++collects; }
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}
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int main(int argc, char **argv)
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{
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reset();
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{
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MainWindow window;
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window.show(argc, argv);
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auto *play = find(&window, "Play");
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auto *stop = find(&window, "Stop");
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auto *reconnect = find(&window, "Reconnect");
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CHECK(play != nullptr && stop != nullptr && reconnect != nullptr);
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if (play == nullptr || stop == nullptr || reconnect == nullptr) return 1;
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CHECK(play->active() && !stop->active());
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CHECK(contains(&window, "ready / stopped"));
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press(play);
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CHECK(starts == 1U && !play->active() && stop->active());
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CHECK(contains(&window, "running (silence"));
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press(stop);
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CHECK(stops == 1U && play->active() && !stop->active());
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start_result = XTC_ERR_IO;
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press(play);
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CHECK(contains(&window, "Start engine failed: I/O error"));
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pump(); // A refresh must not erase a command error.
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CHECK(contains(&window, "Start engine failed: I/O error"));
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start_result = XTC_OK;
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press(play);
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CHECK(!contains(&window, "Start engine failed"));
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stop_result = XTC_ERR_IO;
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press(stop);
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CHECK(contains(&window, "Stop engine failed") && stop->active());
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stop_result = XTC_OK;
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press(stop);
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Fl_Menu_Bar *menu = nullptr;
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Fl_Tabs *tabs = nullptr;
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for (int i = 0; i < window.children(); ++i) {
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if (auto *found = dynamic_cast<Fl_Menu_Bar *>(window.child(i))) menu = found;
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if (auto *found = dynamic_cast<Fl_Tabs *>(window.child(i))) tabs = found;
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}
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CHECK(menu != nullptr && tabs != nullptr);
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if (menu == nullptr || tabs == nullptr) return 1;
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for (const char *view : {"View/Mixer", "View/Modular Graph", "View/Sequencer"}) {
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const Fl_Menu_Item *item = menu->find_item(view);
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CHECK(item != nullptr);
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if (item != nullptr) {
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menu->picked(item);
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CHECK(std::strcmp(tabs->value()->label(), std::strchr(view, '/') + 1) == 0);
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}
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}
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engine_status.xruns = 3U;
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engine_status.processed_blocks = 123U;
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pump();
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CHECK(contains(&window, "123 blocks | 3 xruns"));
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engine_status.sample_rate_changed = 1;
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pump();
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CHECK(contains(&window, "sample rate changed") && !play->active());
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engine_status.sample_rate_changed = 0;
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engine_status.server_lost = 1;
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pump();
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CHECK(contains(&window, "server lost") && !play->active());
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engine_status.server_lost = 0;
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press(reconnect);
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CHECK(contains(&window, "ready / stopped") && play->active());
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status_result = XTC_ERR_IO;
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pump();
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CHECK(contains(&window, "status unavailable") && !play->active());
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status_result = XTC_OK;
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press(reconnect);
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close_result = XTC_ERR_IO;
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press(reconnect);
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CHECK(contains(&window, "Reconnect could not close JACK") && alive == 1U);
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window.do_callback();
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CHECK(window.shown() && alive == 1U && contains(&window, "window kept open for retry"));
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close_result = XTC_OK;
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menu->picked(menu->find_item("File/Quit"));
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CHECK(!window.shown() && alive == 0U);
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unsigned int before = collects;
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pump();
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CHECK(collects == before); // Removed timer cannot call a closed backend.
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}
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for (xtc_result failure : {XTC_ERR_IO, XTC_ERR_UNSUPPORTED}) {
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reset();
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open_result = failure;
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MainWindow window;
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window.show(argc, argv);
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CHECK(contains(&window, "Open JACK failed") && !find(&window, "Play")->active());
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open_result = XTC_OK;
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press(find(&window, "Reconnect"));
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CHECK(find(&window, "Play")->active());
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press(find(&window, "Play"));
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window.do_callback(); // Close while running, without a preceding stop.
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CHECK(!window.shown() && alive == 0U);
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}
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reset();
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partial_open = true;
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open_result = XTC_ERR_IO;
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{
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MainWindow window;
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CHECK(alive == 1U && !find(&window, "Play")->active());
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window.do_callback(); // Partially initialized handles are closed only.
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CHECK(alive == 0U);
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}
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reset();
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for (int i = 0; i < 10; ++i) {
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MainWindow window;
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press(find(&window, "Play"));
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window.do_callback();
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}
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CHECK(alive == 0U);
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if (failures != 0) return 1;
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std::printf("GUI controls/errors/views/timers/cleanup passed: %u opens, %u closes.\n", opens, closes);
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return 0;
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}
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