Display online count in the info profile section.

Telegram/SourceFiles/rpl/variable_tests.cpp

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+/*
+This file is part of Telegram Desktop,
+the official desktop version of Telegram messaging app, see https://telegram.org
+
+Telegram Desktop is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 3 of the License, or
+(at your option) any later version.
+
+It is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+GNU General Public License for more details.
+
+In addition, as a special exception, the copyright holders give permission
+to link the code of portions of this program with the OpenSSL library.
+
+Full license: https://github.com/telegramdesktop/tdesktop/blob/master/LICENSE
+Copyright (c) 2014-2017 John Preston, https://desktop.telegram.org
+*/
+#include "catch.hpp"
+
+#include <rpl/rpl.h>
+#include <string>
+
+using namespace rpl;
+
+TEST_CASE("basic variable tests", "[rpl::variable]") {
+	SECTION("simple test") {
+		auto sum = std::make_shared<int>(0);
+		{
+			auto var = variable<int>(1);
+			auto lifeftime = var.value()
+				| start_with_next([=](int value) {
+					*sum += value;
+				});
+			var = 1;
+			var = 11;
+			var = 111;
+			var = 111;
+		}
+		REQUIRE(*sum == 1 + 11 + 111);
+	}
+}
+