public void GetOptionProperties()
{
string[] args = new String[] { "-Dparam1=value1", "-Dparam2=value2", "-Dparam3", "-Dparam4=value4", "-D", "--property", "foo=bar" };
Options options = new Options();
options.AddOption(OptionBuilder.New().WithValueSeparator().HasOptionalArgs(2).Create('D'));
options.AddOption(OptionBuilder.New().WithValueSeparator().HasArguments(2).WithLongName("property").Create());
Parser parser = new GnuParser();
ICommandLine cl = parser.Parse(options, args);
IDictionary <string, string> props = cl.GetOptionProperties("D");
Assert.IsNotNull(props, "null properties");
Assert.AreEqual(4, props.Count, "number of properties in " + props);
Assert.AreEqual("value1", props["param1"], "property 1");
Assert.AreEqual("value2", props["param2"], "property 2");
Assert.AreEqual("true", props["param3"], "property 3");
Assert.AreEqual("value4", props["param4"], "property 4");
Assert.AreEqual("bar", cl.GetOptionProperties("property")["foo"], "property with long format");
}