public static TimeSpan CreateInstanceOfTimeSpan(Random rndGen, CreatorSettings creatorSettings)
{
long temp = CreateInstanceOfInt64(rndGen, creatorSettings);
TimeSpan result = TimeSpan.FromTicks(temp);
return(result);
}
public static Uri CreateInstanceOfUri(Random rndGen, CreatorSettings creatorSettings)
{
Uri result = null;
UriKind kind;
try
{
string uriString = UriCreator.CreateUri(rndGen, out kind);
result = new Uri(uriString, kind);
}
catch (ArgumentException)
{
// From http://msdn.microsoft.com/en-us/library/ms131565.aspx
// uriKind is invalid.
result = new Uri("my.schema://*****:*****@my.domain/path1/path2?query1=123&query2=%22hello%22");
}
catch (UriFormatException)
{
// From http://msdn.microsoft.com/en-us/library/ms131565.aspx
// uriKind is invalid.
result = new Uri("my.schema://*****:*****@my.domain/path1/path2?query1=123&query2=%22hello%22");
}
return(result);
}
public static string CreateRandomCookieName(Random rndGen, CreatorSettings creatorSettings)
{
return(PrimitiveCreator.CreateRandomString(rndGen, -1, Token, new CreatorSettings(creatorSettings)
{
MinStringLength = 1
}));
}
internal static JObject CreateInstanceOfJObject(Random rndGen, CreatorSettings creatorSettings, int currDepth = 0)
{
var obj = new JObject();
var existingPropertyName = new HashSet <string>();
var maxPropCount = rndGen.Next(creatorSettings.MaxListLength);
int currPropCount = 0;
while (currPropCount < maxPropCount)
{
var propertyName = InstanceCreator.CreateInstanceOf <string>(rndGen, new CreatorSettings(creatorSettings)
{
NullValueProbability = 0.0
});
if (!existingPropertyName.Contains(propertyName))
{
obj.Add(propertyName, CreateInstanceOfJToken(rndGen, creatorSettings, currDepth + 1));
existingPropertyName.Add(propertyName);
currPropCount++;
}
}
return(obj);
}
private static object CreateInstanceOfListOfT(Type listType, Random rndGen, CreatorSettings creatorSettings)
{
Type type = listType.GetGenericArguments()[0];
double rndNumber = rndGen.NextDouble();
if (rndNumber < creatorSettings.NullValueProbability)
{
return(null); // 1% chance of null value
}
int size = (int)Math.Pow(creatorSettings.MaxListLength, rndNumber);
// this will create more small lists than large ones
if (creatorSettings.AllowEmptyCollection)
{
size--;
}
object result = Activator.CreateInstance(listType);
MethodInfo addMethod = listType.GetMethod("Add");
for (int i = 0; i < size; i++)
{
addMethod.Invoke(result, new object[] { CreateInstanceOf(type, rndGen, creatorSettings) });
}
return(result);
}
private static object CreateInstanceOfArray(Type arrayType, Random rndGen, CreatorSettings creatorSettings)
{
Type type = arrayType.GetElementType();
double rndNumber = rndGen.NextDouble();
if (rndNumber < creatorSettings.NullValueProbability)
{
return(null); // 1% chance of null value
}
int size = (int)Math.Pow(creatorSettings.MaxArrayLength, rndNumber);
// this will create more small arrays than large ones
if (creatorSettings.AllowEmptyCollection)
{
size--;
}
Array result = Array.CreateInstance(type, size);
for (int i = 0; i < size; i++)
{
result.SetValue(CreateInstanceOf(type, rndGen, creatorSettings), i);
}
return(result);
}
//[CLSCompliant(false)]
public static SByte CreateInstanceOfSByte(Random rndGen, CreatorSettings creatorSettings)
{
byte[] rndValue = new byte[1];
rndGen.NextBytes(rndValue);
SByte result = (SByte)rndValue[0];
return(result);
}
public static DateTimeOffset CreateInstanceOfDateTimeOffset(Random rndGen, CreatorSettings creatorSettings)
{
DateTime temp = CreateInstanceOfDateTime(rndGen, creatorSettings);
temp = DateTime.SpecifyKind(temp, DateTimeKind.Unspecified);
int offsetMinutes = rndGen.Next(-14 * 60, 14 * 60);
DateTimeOffset result = new DateTimeOffset(temp, TimeSpan.FromMinutes(offsetMinutes));
return(result);
}
public static Decimal CreateInstanceOfDecimal(Random rndGen, CreatorSettings creatorSettings)
{
int low = CreateInstanceOfInt32(rndGen, creatorSettings);
int mid = CreateInstanceOfInt32(rndGen, creatorSettings);
int high = CreateInstanceOfInt32(rndGen, creatorSettings);
bool isNegative = rndGen.Next(2) == 0;
const int MaxDecimalScale = 28;
byte scale = (byte)rndGen.Next(0, MaxDecimalScale + 1);
return(new Decimal(low, mid, high, isNegative, scale));
}
public static string CreateInstanceOfString(Random rndGen, CreatorSettings creatorSettings)
{
double rndNumber = rndGen.NextDouble();
if (rndNumber < creatorSettings.NullValueProbability)
{
return(null);
}
return(CreateRandomString(rndGen, -1, null, creatorSettings));
}
public override object CreateInstanceOf(Type type, Random rndGen, CreatorSettings creatorSettings)
{
ulong ul;
do
{
ul = PrimitiveCreator.CreateInstanceOfUInt64(rndGen, creatorSettings);
}while (ul > long.MaxValue);
return(ul);
}
internal static object CreateInstanceOf(Type type, Random rndGen, CreatorSettings creatorSettings)
{
if (!creatorSettings.EnterRecursion())
{
return(null);
}
if (rndGen.NextDouble() < creatorSettings.NullValueProbability && !type.IsValueType)
{
return(null);
}
// Test convention #1: if the type has a .ctor(Random), call it and the
// type will initialize itself.
ConstructorInfo randomCtor = type.GetConstructor(new Type[] { typeof(Random) });
if (randomCtor != null)
{
return(randomCtor.Invoke(new object[] { rndGen }));
}
// Test convention #2: if the type has a static method CreateInstance(Random, CreatorSettings), call it and
// an new instance will be returned
var createInstanceMtd = type.GetMethod("CreateInstance", BindingFlags.Static | BindingFlags.Public);
if (createInstanceMtd != null)
{
return(createInstanceMtd.Invoke(null, new object[] { rndGen, creatorSettings }));
}
// Test convention #3: use the default constructor for classes and set public
// properties and fields to random values.
object result = null;
if (type.IsValueType)
{
result = Activator.CreateInstance(type);
}
else
{
ConstructorInfo defaultCtor = type.GetConstructor(Type.EmptyTypes);
if (defaultCtor == null)
{
throw new ArgumentException("Type " + type.FullName + " does not have a default constructor.");
}
result = defaultCtor.Invoke(new object[0]);
}
SetPublicProperties(type, result, rndGen, creatorSettings);
SetPublicFields(type, result, rndGen, creatorSettings);
creatorSettings.LeaveRecursion();
return(result);
}
public virtual string Generate(Random random, CreatorSettings settings)
{
this.Random = random;
this.Settings = settings;
depth++;
var result = GenerateInternal();
depth--;
return(result);
}
internal static JArray CreateInstanceOfJArray(Random rndGen, CreatorSettings creatorSettings, int currDepth = 0)
{
var arr = new JArray();
var max = rndGen.Next(creatorSettings.MaxArrayLength);
for (int i = 0; i < max; i++)
{
arr.Add(CreateInstanceOfJToken(rndGen, creatorSettings, currDepth + 1));
}
return(arr);
}
public static object CreatePrimitiveInstance(Type type, Random rndGen, CreatorSettings creatorSettings)
{
if (creators.ContainsKey(type))
{
return(creators[type].Invoke(null, new object[] { rndGen, creatorSettings }));
}
else
{
throw new ArgumentException("Type " + type.FullName + " not supported");
}
}
private static void SetPublicFields(Type type, object obj, Random rndGen, CreatorSettings creatorSettings)
{
List <FieldInfo> fields = new List <FieldInfo>(type.GetFields(BindingFlags.Public | BindingFlags.Instance));
fields.Sort(new Comparison <FieldInfo>(CompareMemberNames));
foreach (FieldInfo field in fields)
{
object fieldValue = InstanceCreator.CreateInstanceOf(field.FieldType, rndGen, creatorSettings);
field.SetValue(obj, fieldValue);
}
}
private static object CreateInstanceOfNullableOfT(
Type nullableOfTType, Random rndGen, CreatorSettings creatorSettings)
{
if (rndGen.Next(5) == 0)
{
return(null);
}
Type type = nullableOfTType.GetGenericArguments()[0];
return(CreateInstanceOf(type, rndGen, creatorSettings));
}
public static DateTime CreateInstanceOfDateTime(Random rndGen, CreatorSettings creatorSettings)
{
long temp = CreateInstanceOfInt64(rndGen, creatorSettings);
temp = Math.Abs(temp);
DateTime result;
try
{
result = new DateTime(temp % (DateTime.MaxValue.Ticks + 1));
}
catch (ArgumentOutOfRangeException)
{
// jasonv - approved; specific, commented
// From http://msdn.microsoft.com/en-us/library/z2xf7zzk.aspx
// ticks is less than MinValue or greater than MaxValue.
result = DateTime.Now;
}
int kind = rndGen.Next(3);
switch (kind)
{
case 0:
result = DateTime.SpecifyKind(result, DateTimeKind.Local);
break;
case 1:
result = DateTime.SpecifyKind(result, DateTimeKind.Unspecified);
break;
default:
result = DateTime.SpecifyKind(result, DateTimeKind.Utc);
break;
}
if (!creatorSettings.CreateDateTimeWithSubMilliseconds)
{
result = new DateTime(
result.Year,
result.Month,
result.Day,
result.Hour,
result.Minute,
result.Second,
result.Millisecond,
result.Kind);
}
return(result);
}
//[CLSCompliant(false)]
public static UInt64 CreateInstanceOfUInt64(Random rndGen, CreatorSettings creatorSettings)
{
byte[] rndValue = new byte[8];
rndGen.NextBytes(rndValue);
UInt64 result = 0;
for (int i = 0; i < rndValue.Length; i++)
{
result = (UInt64)(result << 8);
result = (UInt64)(result | (UInt64)rndValue[i]);
}
return(result);
}
public static Int32 CreateInstanceOfInt32(Random rndGen, CreatorSettings creatorSettings)
{
byte[] rndValue = new byte[4];
rndGen.NextBytes(rndValue);
Int32 result = 0;
for (int i = 0; i < rndValue.Length; i++)
{
result = (Int32)(result << 8);
result = (Int32)(result | (Int32)rndValue[i]);
}
return(result);
}
internal static JValue CreateInstanceOfJValue(Random rndGen, CreatorSettings creatorSettings)
{
var rnd = rndGen.Next(20);
object value;
switch (rnd)
{
case 0:
case 1:
value = InstanceCreator.CreateInstanceOf <bool>(rndGen, creatorSettings);
break;
case 2:
case 3:
case 4:
case 5:
case 6:
value = InstanceCreator.CreateInstanceOf <int>(rndGen, creatorSettings);
break;
case 7:
case 8:
// workaround for Bug371740
//value = InstanceCreator.CreateInstanceOf<double>(rndGen, creatorSettings);
//break;
case 9:
value = InstanceCreator.CreateInstanceOf <DateTime>(rndGen, creatorSettings);
break;
case 10:
value = InstanceCreator.CreateInstanceOf <TimeSpan>(rndGen, creatorSettings);
break;
case 11:
value = InstanceCreator.CreateInstanceOf <Guid>(rndGen, creatorSettings);
break;
case 12:
value = InstanceCreator.CreateInstanceOf <Uri>(rndGen, creatorSettings);
break;
default:
value = InstanceCreator.CreateInstanceOf <string>(rndGen, creatorSettings);
break;
}
return(new JValue(value));
}
private static object CreateInstanceOfDictionaryOfKAndV(
Type dictionaryType, Random rndGen, CreatorSettings creatorSettings)
{
double nullValueProbability = creatorSettings.NullValueProbability;
Type[] genericArgs = dictionaryType.GetGenericArguments();
Type typeK = genericArgs[0];
Type typeV = genericArgs[1];
double rndNumber = rndGen.NextDouble();
if (rndNumber < creatorSettings.NullValueProbability)
{
return(null); // 1% chance of null value
}
int size = (int)Math.Pow(creatorSettings.MaxListLength, rndNumber);
// this will create more small dictionaries than large ones
if (creatorSettings.AllowEmptyCollection)
{
size--;
}
object result = Activator.CreateInstance(dictionaryType);
MethodInfo addMethod = dictionaryType.GetMethod("Add");
MethodInfo containsKeyMethod = dictionaryType.GetMethod("ContainsKey");
for (int i = 0; i < size; i++)
{
//Dictionary Keys cannot be null.Set null probability to 0
creatorSettings.NullValueProbability = 0;
object newKey = CreateInstanceOf(typeK, rndGen, creatorSettings);
//Reset null instance probability
creatorSettings.NullValueProbability = nullValueProbability;
bool containsKey = (bool)containsKeyMethod.Invoke(result, new object[] { newKey });
if (!containsKey)
{
object newValue = CreateInstanceOf(typeV, rndGen, creatorSettings);
addMethod.Invoke(result, new object[] { newKey, newValue });
}
}
return(result);
}
public static Char CreateInstanceOfChar(Random rndGen, CreatorSettings creatorSettings)
{
if (creatorSettings.CreateOnlyAsciiChars)
{
return((Char)rndGen.Next(0x20, 0x7F));
}
else if (creatorSettings.DontCreateSurrogateChars)
{
char c;
do
{
c = (Char)rndGen.Next((int)Char.MinValue, (int)Char.MaxValue);
}while (Char.IsSurrogate(c));
return(c);
}
else
{
return((Char)rndGen.Next((int)Char.MinValue, (int)Char.MaxValue + 1));
}
}
internal static JToken CreateInstanceOfJToken(Random rndGen, CreatorSettings creatorSettings, int currDepth = 0)
{
var depth = rndGen.Next(MaxDepth);
if (currDepth >= depth)
{
return(CreateInstanceOfJValue(rndGen, creatorSettings));
}
else
{
switch (rndGen.Next(3))
{
case 0:
return(CreateInstanceOfJValue(rndGen, creatorSettings));
case 1:
return(CreateInstanceOfJArray(rndGen, creatorSettings));
default:
return(CreateInstanceOfJObject(rndGen, creatorSettings));
}
}
}
public static Single CreateInstanceOfSingle(Random rndGen, CreatorSettings creatorSettings)
{
bool negative = rndGen.Next(2) == 0;
int temp = rndGen.Next(40);
Single result;
switch (temp)
{
case 0:
return(Single.NaN);
case 1:
return(Single.PositiveInfinity);
case 2:
return(Single.NegativeInfinity);
case 3:
return(Single.MinValue);
case 4:
return(Single.MaxValue);
case 5:
return(Single.Epsilon);
default:
result = (Single)(rndGen.NextDouble() * 100000);
if (negative)
{
result = -result;
}
return(result);
}
}
public static string CreateRandomCookieValue(Random rndGen, CreatorSettings creatorSettings)
{
return(PrimitiveCreator.CreateRandomString(rndGen, -1, CookieOctet, creatorSettings));
}
private static NameValueCollection CreateRandomNameValueCollection(Random rndGen, CreatorSettings creatorSettings)
{
NameValueCollection col = new NameValueCollection();
int size = rndGen.Next(20);
for (int i = 0; i < size; i++)
{
col.Add(
CreateRandomCookieValue(rndGen, creatorSettings),
CreateRandomCookieValue(rndGen, creatorSettings));
}
return(col);
}
public static string CreateRandomDomain(Random rndGen, CreatorSettings creatorSettings)
{
return(DomainSyntax.Generate(rndGen, creatorSettings));
}
public static CookieHeaderValue CreateInstanceOfCookieHeaderValue(Random rndGen, CreatorSettings creatorSettings)
{
creatorSettings.NullValueProbability = 0.0;
string name = CreateRandomCookieName(rndGen, creatorSettings);
CookieHeaderValue header;
if (rndGen.Next(2) == 0)
{
header = new CookieHeaderValue(name, CreateRandomCookieValue(rndGen, creatorSettings));
}
else
{
header = new CookieHeaderValue(name, CreateRandomNameValueCollection(rndGen, creatorSettings));
}
header.Domain = CreateRandomDomain(rndGen, creatorSettings);
header.Expires = InstanceCreator.CreateInstanceOf <DateTimeOffset?>(rndGen, creatorSettings);
header.HttpOnly = InstanceCreator.CreateInstanceOf <bool>(rndGen, creatorSettings);
header.MaxAge = InstanceCreator.CreateInstanceOf <TimeSpan?>(rndGen, creatorSettings);
header.Secure = InstanceCreator.CreateInstanceOf <bool>(rndGen, creatorSettings);
header.Path = CreateRandomPath(rndGen, creatorSettings);
return(header);
}
private static void SetPublicProperties(Type type, object obj, Random rndGen, CreatorSettings creatorSettings)
{
List <PropertyInfo> properties =
new List <PropertyInfo>(type.GetProperties(BindingFlags.Public | BindingFlags.Instance));
properties.Sort(new Comparison <PropertyInfo>(CompareMemberNames));
foreach (PropertyInfo property in properties)
{
if (property.CanWrite)
{
object propertyValue = InstanceCreator.CreateInstanceOf(property.PropertyType, rndGen, creatorSettings);
property.SetValue(obj, propertyValue, null);
}
}
}
