public void BeforeAllTests()
{
_balloonProgramTypeInfo = new TypeDelegator(typeof(BalloonProgram));
var assembly = Assembly.GetAssembly(typeof(Program));
_writeDelegateTypeInfo = assembly.DefinedTypes.FirstOrDefault(t =>
{
if (!typeof(MulticastDelegate).IsAssignableFrom(t))
{
return(false);
}
//check signature (must return void and have a string parameter)
var methodInfo = t.DeclaredMethods.First(p => p.Name == "Invoke");
if (methodInfo.ReturnType.Name.ToLower() != "void")
{
return(false);
}
ParameterInfo[] parameters = methodInfo.GetParameters();
if (parameters.Length != 1)
{
return(false);
}
if (parameters[0].ParameterType != typeof(string))
{
return(false);
}
return(true);
});
if (_writeDelegateTypeInfo != null)
{
_constructorTypeInfo = _balloonProgramTypeInfo.GetConstructors().FirstOrDefault(c =>
{
var parameters = c.GetParameters();
if (parameters.Length != 1)
{
return(false);
}
return(parameters[0].ParameterType == _writeDelegateTypeInfo.AsType());
});
if (_constructorTypeInfo != null)
{
MethodInfo handlerMethodInfo = typeof(BalloonProgramTests).GetMethod(nameof(LogWrite), BindingFlags.NonPublic | BindingFlags.Instance);
Delegate writeDelegate = Delegate.CreateDelegate(_writeDelegateTypeInfo, this, handlerMethodInfo);
_program = (BalloonProgram)_constructorTypeInfo.Invoke(new object[] { writeDelegate });
}
}
_balloonProgramClassContent = Solution.Current.GetFileContent(@"Exercise1\BalloonProgram.cs");
}
public void BeforeEachTest()
{
try
{
_writeLogs = new List <string>();
if (_writeDelegateTypeInfo != null && _constructorTypeInfo != null)
{
MethodInfo handlerMethodInfo = typeof(BalloonProgramTests).GetMethod(nameof(LogWrite), BindingFlags.NonPublic | BindingFlags.Instance);
Delegate writeDelegate = Delegate.CreateDelegate(_writeDelegateTypeInfo, this, handlerMethodInfo);
_program = (BalloonProgram)_constructorTypeInfo.Invoke(new object[] { writeDelegate });
}
}
catch (Exception e)
{
TestContext.WriteLine("Error while setting up the program:");
TestContext.WriteLine(e.ToString());
}
}
