[shellprocess] Stub of a shell process module.

This is basically dummyprocess, except with an expanded configuration
interface so you can run 1 or more shell commands in the live
or target system with a suitable configuration file and instance
of shellprocess in settings.conf.

It can replace downstream modules that implement their own
process modules with a command, by an instance of shellprocess.

src/modules/shellprocess/Tests.cpp

@@ -0,0 +1,65 @@
+/* === This file is part of Calamares - <https://github.com/calamares> ===
+ *
+ *   Copyright 2017, Adriaan de Groot <groot@kde.org>
+ *
+ *   Calamares 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.
+ *
+ *   Calamares 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.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with Calamares. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "Tests.h"
+#include "CommandList.h"
+
+#include "utils/YamlUtils.h"
+
+#include <yaml-cpp/yaml.h>
+
+#include <QtTest/QtTest>
+
+#include <QFileInfo>
+#include <QStringList>
+
+QTEST_GUILESS_MAIN( ShellProcessTests )
+
+ShellProcessTests::ShellProcessTests()
+{
+}
+
+ShellProcessTests::~ShellProcessTests()
+{
+}
+
+void
+ShellProcessTests::initTestCase()
+{
+}
+
+void
+ShellProcessTests::testProcessList()
+{
+    YAML::Node doc;
+
+    QStringList dirs { "src/modules/shellprocess", "." };
+    for ( const auto& dir : dirs )
+    {
+        QString filename = dir + "/shellprocess.conf";
+        if ( QFileInfo::exists( filename ) )
+        {
+            doc = YAML::LoadFile( filename.toStdString() );
+            break;
+        }
+    }
+
+    CommandList cl(
+        CalamaresUtils::yamlMapToVariant( doc ).toMap().value( "script" ) );
+    QVERIFY( !cl.isEmpty() );
+}