GH-997 add unit test for ini file save/load passthrough

tests/tst_inifile.cpp

@@ -17,7 +17,7 @@ slots:
 
 	}
 
-	void test_PathCombine1_data()
+	void test_Escape_data()
 	{
 		QTest::addColumn<QString>("through");
 
@@ -27,7 +27,7 @@ slots:
 		QTest::newRow("Escape sequences") << "Lorem\n\t\n\\n\\tAAZ\nipsum dolor\n\nsit amet.";
 		QTest::newRow("Escape sequences 2") << "\"\n\n\"";
 	}
-	void test_PathCombine1()
+	void test_Escape()
 	{
 		QFETCH(QString, through);
 
@@ -36,6 +36,25 @@ slots:
 
 		QCOMPARE(back, through);
 	}
+
+	void test_SaveLoad()
+	{
+		QString a = "a";
+		QString b = "a\nb\t\n\\\\\\C:\\Program files\\terrible\\name\\of something\\";
+		QString filename = "test_SaveLoad.ini";
+
+		// save
+		INIFile f;
+		f.set("a", a);
+		f.set("b", b);
+		f.saveFile(filename);
+
+		// load
+		INIFile f2;
+		f2.loadFile(filename);
+		QCOMPARE(a, f2.get("a","NOT SET").toString());
+		QCOMPARE(b, f2.get("b","NOT SET").toString());
+	}
 };
 
 QTEST_GUILESS_MAIN(IniFileTest)