/* Unit tests for bi-directional popen
 *
 * @author Steffen Vogel <post@steffenvogel.de>
 * @copyright 2014-2022, Institute for Automation of Complex Power Systems, EONERC
 * @license Apache License 2.0
 */

#include <iostream>
#include <criterion/criterion.h>

#include <villas/popen.hpp>

using namespace villas::utils;

// cppcheck-suppress unknownMacro
TestSuite(popen, .description = "Bi-directional popen");

Test(popen, no_shell)
{
	PopenStream proc("/usr/bin/tee", {"tee", "test"});

	proc.cout() << "Hello World" << std::endl;
	proc.cout().flush();

	std::string str, str2;

	proc.cin() >> str >> str2;

	std::cout << str << str2 << std::endl;

	cr_assert_eq(str, "Hello");
	cr_assert_eq(str2, "World");

	proc.kill();
	proc.close();
}

Test(popen, shell)
{
	PopenStream proc("echo \"Hello World\"", {}, {}, std::string(), true);

	std::string str, str2;

	proc.cin() >> str >> str2;

	cr_assert_eq(str, "Hello");
	cr_assert_eq(str2, "World");

	proc.kill();
	proc.close();
}

Test(popen, wd)
{
	PopenStream proc("/usr/bin/pwd", {"pwd"}, {}, "/usr/lib");

	std::string wd;

	proc.cin() >> wd;

	cr_assert_eq(wd, "/usr/lib");

	proc.kill();
	proc.close();
}

Test(popen, env)
{
	PopenStream proc("echo $MYVAR", {}, {{"MYVAR", "TESTVAL"}}, std::string(), true);

	std::string var;

	proc.cin() >> var;

	cr_assert_eq(var, "TESTVAL");

	proc.kill();
	proc.close();
}