private void CheckMethods(HashSet <string> obtainedMembers)
{
IEnumerable <MethodInfo> methods = typeof(Res).GetMethods(BindingFlags.Static | BindingFlags.NonPublic).Where(m => m.IsAssembly);
var generateSettings = new GenerateObjectSettings {
AllowCreateObjectWithoutConstructor = true
}; // for PropertyDescriptors
foreach (MethodInfo mi in methods)
{
var method = mi.IsGenericMethodDefinition ? mi.MakeGenericMethod(random.NextObject(typeof(Enum)).GetType()) : mi;
object[] parameters = method.GetParameters().Select(p => random.NextObject(p.ParameterType, generateSettings)).ToArray();
string value = method.Invoke(null, parameters).ToString();
Assert.IsTrue(!value.StartsWith(unavailableResourcePrefix, StringComparison.Ordinal), $"{nameof(Res)}.{method.Name} refers to an undefined resource.");
Assert.IsTrue(!value.StartsWith(invalidResourcePrefix, StringComparison.Ordinal), $"{nameof(Res)}.{method.Name} uses too few parameters.");
for (int i = 0; i < parameters.Length; i++)
{
var parameter = parameters[i];
Assert.IsTrue(value.Contains(parameter.ToString(), StringComparison.Ordinal)
//|| mi.IsGenericMethodDefinition // Xxx<TEnum>(TEnum value) - not value but possible TValue is printed
//|| parameter is float f && value.Contains(f.ToString("P2"), StringComparison.Ordinal) // percentage format of float
//|| parameter is double d && value.ContainsAny(StringComparison.Ordinal, d.ToString("N2"), d.ToString("P2")) // double: percentage or number
//|| parameter is bool b && value.Contains(b ? PublicResources.Yes : PublicResources.No, StringComparison.Ordinal) // percentage format of float
//|| parameter is int n && value.Contains(n.ToString("N0"), StringComparison.Ordinal) // normal ToString checked above, number format checked here
//|| parameter is long l && value.Contains(l.ToString("N0"), StringComparison.Ordinal), // normal ToString checked above, number format checked here
, $"{nameof(Res)}.{method.Name} does not use parameter #{i}.");
}
obtainedMembers.Add(method.Name);
}
}
public void NextObjectTest()
{
var rnd = new Random();
void Test <T>(GenerateObjectSettings settings = null)
{
var obj = rnd.NextObject <T>(settings);
// Console.WriteLine($"Random {typeof(T).Name}: {obj}");
}
// native types
Test <bool>();
Test <byte>();
Test <sbyte>();
Test <char>();
Test <short>();
Test <ushort>();
Test <int>();
Test <uint>();
Test <long>();
Test <ulong>();
Test <float>();
Test <double>();
Test <decimal>();
Test <string>();
Test <StringBuilder>();
Test <Uri>();
Test <Guid>();
Test <DateTime>();
Test <DateTimeOffset>();
Test <TimeSpan>();
Test <IntPtr>();
Test <UIntPtr>();
Test <byte?>();
// enums
Test <EmptyEnum>();
Test <ConsoleColor>();
Test <Enum>();
// arrays
Test <byte[]>();
Test <byte?[]>();
Test <byte[, ]>();
// collections
Test <List <int> >(); // populate
Test <Dictionary <int, string> >(); // populate
Test <ArrayList>(); // populate
Test <Hashtable>(); // populate
Test <BitArray>(); // array ctor
Test <ReadOnlyCollection <int> >(); // IList<T> ctor
Test <ArraySegment <int> >(); // array ctor
Test <Cache <int, int> >(); // populate
Test <Queue>(); // ICollection ctor
#if !(NETCOREAPP2_0 || NETCOREAPP3_0)
Test <CounterCreationDataCollection>(new GenerateObjectSettings {
SubstitutionForObjectType = typeof(CounterCreationData)
}); // populate, typed object
#endif
// key-value
Test <DictionaryEntry>();
Test <KeyValuePair <int, string> >();
// reflection types
Test <Assembly>();
Test <Type>();
Test <MethodBase>();
Test <MemberInfo>();
// base types
var cfg = new GenerateObjectSettings {
AllowDerivedTypesForNonSealedClasses = true
};
Test <EventArgs>(cfg);
// abstract types/interfaces
Test <Enum>();
Test <IConvertible>();
// delegates
Test <Delegate>();
Test <MulticastDelegate>();
Test <Func <int> >();
Test <OutDelegate>();
// recursive types
Test <Recursive>(); // contains self as member
Test <RecursiveCollection>(); // contains self as collection item
Test <XmlSchemaObject>(); // contains self as abstract class
}