| public static IsNumericType ( Object obj ) : bool | ||
| obj | Object | The object to check |
| return | bool | |
private bool ObjectsEqual(object expected, object actual)
{
if (expected == null && actual == null)
{
return(true);
}
if (expected == null || actual == null)
{
return(false);
}
Type expectedType = expected.GetType();
Type actualType = actual.GetType();
if (expectedType.IsArray && actualType.IsArray && !compareAsCollection)
{
return(ArraysEqual((Array)expected, (Array)actual));
}
if (expected is ICollection && actual is ICollection)
{
return(CollectionsEqual((ICollection)expected, (ICollection)actual));
}
if (expected is Stream && actual is Stream)
{
return(StreamsEqual((Stream)expected, (Stream)actual));
}
if (compareWith != null)
{
return(compareWith.Compare(expected, actual) == 0);
}
if (Numerics.IsNumericType(expected) && Numerics.IsNumericType(actual))
{
return(Numerics.AreEqual(expected, actual, tolerance));
}
if (expected is string && actual is string)
{
return(string.Compare((string)expected, (string)actual, caseInsensitive) == 0);
}
foreach (Type type in constraintHelpers.Keys)
{
if (type.IsInstanceOfType(expected) && type.IsInstanceOfType(actual))
{
Type constraintType = (Type)constraintHelpers[type];
Constraint constraint = (Constraint)NUnitLite.Reflect.Construct(constraintType, expected);
return(constraint.Matches(actual));
}
}
return(expected.Equals(actual));
}
private bool ObjectsEqual(object expected, object actual)
{
if (expected == null && actual == null)
{
return(true);
}
if (expected == null || actual == null)
{
return(false);
}
Type expectedType = expected.GetType();
Type actualType = actual.GetType();
if (expectedType.IsArray && actualType.IsArray && !compareAsCollection)
{
return(ArraysEqual((Array)expected, (Array)actual));
}
if (expected is ICollection && actual is ICollection)
{
return(CollectionsEqual((ICollection)expected, (ICollection)actual));
}
if (expected is Stream && actual is Stream)
{
return(StreamsEqual((Stream)expected, (Stream)actual));
}
if (compareWith != null)
{
return(compareWith.Compare(expected, actual) == 0);
}
if (expected is DirectoryInfo && actual is DirectoryInfo)
{
return(DirectoriesEqual((DirectoryInfo)expected, (DirectoryInfo)actual));
}
if (Numerics.IsNumericType(expected) && Numerics.IsNumericType(actual))
{
return(Numerics.AreEqual(expected, actual, ref tolerance));
}
if (expected is string && actual is string)
{
return(StringsEqual((string)expected, (string)actual));
}
if (expected is DateTime && actual is DateTime && tolerance is TimeSpan)
{
return(((DateTime)expected - (DateTime)actual).Duration() <= (TimeSpan)tolerance);
}
return(expected.Equals(actual));
}
private void CheckLinearAndNumeric()
{
if (mode != ToleranceMode.Linear)
{
throw new InvalidOperationException((mode == ToleranceMode.None) ? "Tolerance amount must be specified before setting mode" : "Tried to use multiple tolerance modes at the same time");
}
if (!Numerics.IsNumericType(amount))
{
throw new InvalidOperationException("A numeric tolerance is required");
}
}
private Range PercentRange(object value)
{
if (!Numerics.IsNumericType(Amount) || !Numerics.IsNumericType(value))
{
throw new InvalidOperationException("Cannot create range for a non-numeric value");
}
var v = Convert.ToDouble(value);
var offset = v * Convert.ToDouble(Amount) / 100.0;
return(new Range(v - offset, v + offset));
}
/// <summary>
/// Tests that the current Tolerance is linear with a
/// numeric value, throwing an exception if it is not.
/// </summary>
private void CheckLinearAndNumeric()
{
if (Mode != ToleranceMode.Linear)
{
throw new InvalidOperationException(Mode == ToleranceMode.Unset
? ModeMustFollowTolerance
: MultipleToleranceModes);
}
if (!Numerics.IsNumericType(Amount))
{
throw new InvalidOperationException(NumericToleranceRequired);
}
}
/// <summary>
/// Compares two objects
/// </summary>
/// <param name="x"></param>
/// <param name="y"></param>
/// <returns></returns>
public int Compare(object x, object y)
{
if (x == null)
{
return(y == null ? 0 : -1);
}
else if (y == null)
{
return(+1);
}
if (Numerics.IsNumericType(x) && Numerics.IsNumericType(y))
{
return(Numerics.Compare(x, y));
}
Type xType = x.GetType();
Type yType = y.GetType();
// If we use BindingFlags.ExactBinding it will prevent us finding CompareTo(object)
// It however also prevents finding CompareTo(TBase) when called with TDerived
// Nor will it find CompareTo(int) when called with a short.
// We fallback to explicitly exclude CompareTo(object)
bool IsIComparable(MethodInfo method) => method.GetParameters()[0].ParameterType == typeof(object);
MethodInfo method = xType.GetMethod("CompareTo", new Type[] { yType });
if (method != null && !IsIComparable(method))
{
return((int)method.Invoke(x, new object[] { y }));
}
method = yType.GetMethod("CompareTo", new Type[] { xType });
if (method != null && !IsIComparable(method))
{
return(-(int)method.Invoke(y, new object[] { x }));
}
if (x is IComparable)
{
return(((IComparable)x).CompareTo(y));
}
if (y is IComparable)
{
return(-((IComparable)y).CompareTo(x));
}
throw new ArgumentException("Neither value implements IComparable or IComparable<T>");
}
/// <summary>
/// Compares two objects
/// </summary>
/// <param name="x"></param>
/// <param name="y"></param>
/// <returns></returns>
public int Compare(object x, object y)
{
if (x == null)
{
return(y == null ? 0 : -1);
}
else if (y == null)
{
return(+1);
}
if (x is char && y is char)
{
return((char)x == (char)y ? 0 : 1);
}
if (Numerics.IsNumericType(x) && Numerics.IsNumericType(y))
{
return(Numerics.Compare(x, y));
}
if (x is IComparable)
{
return(((IComparable)x).CompareTo(y));
}
if (y is IComparable)
{
return(-((IComparable)y).CompareTo(x));
}
Type xType = x.GetType();
Type yType = y.GetType();
MethodInfo method = xType.GetMethod("CompareTo", new Type[] { yType });
if (method != null)
{
return((int)method.Invoke(x, new object[] { y }));
}
method = yType.GetMethod("CompareTo", new Type[] { xType });
if (method != null)
{
return(-(int)method.Invoke(y, new object[] { x }));
}
throw new ArgumentException("Neither value implements IComparable or IComparable<T>");
}
public int Compare(object x, object y)
{
if (x == null)
{
return((y != null) ? (-1) : 0);
}
if (y == null)
{
return(1);
}
if (Numerics.IsNumericType(x) && Numerics.IsNumericType(y))
{
return(Numerics.Compare(x, y));
}
if (x is IComparable)
{
return(((IComparable)x).CompareTo(y));
}
if (y is IComparable)
{
return(-((IComparable)y).CompareTo(x));
}
Type type = x.GetType();
Type type2 = y.GetType();
MethodInfo method = type.GetMethod("CompareTo", new Type[1] {
type2
});
if (method != null)
{
return((int)method.Invoke(x, new object[1] {
y
}));
}
method = type2.GetMethod("CompareTo", new Type[1] {
type
});
if (method != null)
{
return(-(int)method.Invoke(y, new object[1] {
x
}));
}
throw new ArgumentException("Neither value implements IComparable or IComparable<T>");
}
/// <summary>
/// Compares two objects
/// </summary>
/// <param name="x"></param>
/// <param name="y"></param>
/// <returns></returns>
public int Compare(object x, object y)
{
if (x == null)
{
return(y == null ? 0 : -1);
}
else if (y == null)
{
return(+1);
}
if (Numerics.IsNumericType(x) && Numerics.IsNumericType(y))
{
return(Numerics.Compare(x, y));
}
Type xType = x.GetType();
Type yType = y.GetType();
private static bool IsSpecialComparisonType(Type type)
{
if (type.IsGenericType)
{
return(type.FullName.StartsWith("System.Collections.Generic.KeyValuePair`2", StringComparison.Ordinal));
}
else if (Numerics.IsNumericType(type))
{
return(true);
}
else
{
return
(type == typeof(string) ||
type == typeof(char) ||
type == typeof(DateTimeOffset) ||
type == typeof(DictionaryEntry));
}
}
private bool ObjectsEqual(object expected, object actual)
{
if (expected == null && actual == null)
{
return(true);
}
if (expected == null || actual == null)
{
return(false);
}
if (expected is string && actual is string)
{
return(string.Compare((string)expected, (string)actual, caseInsensitive) == 0);
}
if (expected is DateTime && actual is DateTime && tolerance is TimeSpan)
{
return(((DateTime)expected - (DateTime)actual).Duration() <= (TimeSpan)tolerance);
}
if (expected is bool && actual is bool)
{
return(expected.Equals(actual));
}
if (FitToInt(expected))
{
return(Convert.ToInt32(expected) == Convert.ToInt32(actual));
}
if (expected is uint)
{
return(Convert.ToUInt32(expected) == Convert.ToUInt32(actual));
}
if (expected is long)
{
if (actual is ulong)
{
return((ulong)(long)expected == (ulong)actual);
}
return((long)expected == Convert.ToInt64(actual));
}
if (expected is ulong)
{
if (actual is long)
{
return((long)(ulong)expected == (long)actual);
}
return((ulong)expected == Convert.ToUInt64(actual));
}
if (Numerics.IsNumericType(expected) && Numerics.IsNumericType(actual))
{
return(Numerics.AreEqual(expected, actual, ref tolerance));
}
Type expectedType = expected.GetType();
Type actualType = actual.GetType();
if (expectedType.IsArray && actualType.IsArray && !compareAsCollection)
{
return(ArraysEqual((Array)expected, (Array)actual));
}
if (expected is ICollection && actual is ICollection)
{
return(CollectionsEqual((ICollection)expected, (ICollection)actual));
}
//if (expected is Stream && actual is Stream)
// return StreamsEqual((Stream)expected, (Stream)actual);
if (compareWith != null)
{
return(compareWith.Compare(expected, actual) == 0);
}
return(expected.Equals(actual));
}
/// <summary>
/// Compares two objects for equality within a tolerance.
/// </summary>
public bool AreEqual(object x, object y, ref Tolerance tolerance)
{
this.failurePoints = new List <FailurePoint>();
if (x == null && y == null)
{
return(true);
}
if (x == null || y == null)
{
return(false);
}
if (object.ReferenceEquals(x, y))
{
return(true);
}
Type xType = x.GetType();
Type yType = y.GetType();
Type xGenericTypeDefinition = xType.IsGenericType ? xType.GetGenericTypeDefinition() : null;
Type yGenericTypeDefinition = yType.IsGenericType ? yType.GetGenericTypeDefinition() : null;
EqualityAdapter externalComparer = GetExternalComparer(x, y);
if (externalComparer != null)
{
return(externalComparer.AreEqual(x, y));
}
if (xType.IsArray && yType.IsArray && !compareAsCollection)
{
return(ArraysEqual((Array)x, (Array)y, ref tolerance));
}
if (x is IDictionary && y is IDictionary)
{
return(DictionariesEqual((IDictionary)x, (IDictionary)y, ref tolerance));
}
// Issue #70 - EquivalentTo isn't compatible with IgnoreCase for dictionaries
if (x is DictionaryEntry && y is DictionaryEntry)
{
return(DictionaryEntriesEqual((DictionaryEntry)x, (DictionaryEntry)y, ref tolerance));
}
// IDictionary<,> will eventually try to compare it's key value pairs when using CollectionTally
if (xGenericTypeDefinition == typeof(KeyValuePair <,>) &&
yGenericTypeDefinition == typeof(KeyValuePair <,>))
{
var keyTolerance = Tolerance.Exact;
object xKey = xType.GetProperty("Key").GetValue(x, null);
object yKey = yType.GetProperty("Key").GetValue(y, null);
object xValue = xType.GetProperty("Value").GetValue(x, null);
object yValue = yType.GetProperty("Value").GetValue(y, null);
return(AreEqual(xKey, yKey, ref keyTolerance) && AreEqual(xValue, yValue, ref tolerance));
}
//if (x is ICollection && y is ICollection)
// return CollectionsEqual((ICollection)x, (ICollection)y, ref tolerance);
if (x is string && y is string)
{
return(StringsEqual((string)x, (string)y));
}
if (x is IEnumerable && y is IEnumerable)
{
return(EnumerablesEqual((IEnumerable)x, (IEnumerable)y, ref tolerance));
}
if (x is Stream && y is Stream)
{
return(StreamsEqual((Stream)x, (Stream)y));
}
if (x is char && y is char)
{
return(CharsEqual((char)x, (char)y));
}
#if !PORTABLE
if (x is DirectoryInfo && y is DirectoryInfo)
{
return(DirectoriesEqual((DirectoryInfo)x, (DirectoryInfo)y));
}
#endif
if (Numerics.IsNumericType(x) && Numerics.IsNumericType(y))
{
return(Numerics.AreEqual(x, y, ref tolerance));
}
#if !NETCF
if (x is DateTimeOffset && y is DateTimeOffset)
{
bool result;
DateTimeOffset xAsOffset = (DateTimeOffset)x;
DateTimeOffset yAsOffset = (DateTimeOffset)y;
if (tolerance != null && tolerance.Value is TimeSpan)
{
TimeSpan amount = (TimeSpan)tolerance.Value;
result = (xAsOffset - yAsOffset).Duration() <= amount;
}
else
{
result = xAsOffset == yAsOffset;
}
if (result && WithSameOffset)
{
result = xAsOffset.Offset == yAsOffset.Offset;
}
return(result);
}
#endif
if (tolerance != null && tolerance.Value is TimeSpan)
{
TimeSpan amount = (TimeSpan)tolerance.Value;
if (x is DateTime && y is DateTime)
{
return(((DateTime)x - (DateTime)y).Duration() <= amount);
}
if (x is TimeSpan && y is TimeSpan)
{
return(((TimeSpan)x - (TimeSpan)y).Duration() <= amount);
}
}
if (FirstImplementsIEquatableOfSecond(xType, yType))
{
return(InvokeFirstIEquatableEqualsSecond(x, y));
}
else if (xType != yType && FirstImplementsIEquatableOfSecond(yType, xType))
{
return(InvokeFirstIEquatableEqualsSecond(y, x));
}
return(x.Equals(y));
}
public bool AreEqual(object x, object y, ref Tolerance tolerance)
{
failurePoints = new ObjectList();
if (x == null && y == null)
{
return(true);
}
if (x == null || y == null)
{
return(false);
}
if (object.ReferenceEquals(x, y))
{
return(true);
}
Type type = x.GetType();
Type type2 = y.GetType();
EqualityAdapter externalComparer = GetExternalComparer(x, y);
if (externalComparer != null)
{
return(externalComparer.AreEqual(x, y));
}
if (type.IsArray && type2.IsArray && !compareAsCollection)
{
return(ArraysEqual((Array)x, (Array)y, ref tolerance));
}
if (x is IDictionary && y is IDictionary)
{
return(DictionariesEqual((IDictionary)x, (IDictionary)y, ref tolerance));
}
if (x is IEnumerable && y is IEnumerable && (!(x is string) || !(y is string)))
{
return(EnumerablesEqual((IEnumerable)x, (IEnumerable)y, ref tolerance));
}
if (x is string && y is string)
{
return(StringsEqual((string)x, (string)y));
}
if (x is Stream && y is Stream)
{
return(StreamsEqual((Stream)x, (Stream)y));
}
if (Numerics.IsNumericType(x) && Numerics.IsNumericType(y))
{
return(Numerics.AreEqual(x, y, ref tolerance));
}
if (tolerance != null && tolerance.Value is TimeSpan)
{
TimeSpan timeSpan = (TimeSpan)tolerance.Value;
if (x is DateTime && y is DateTime)
{
return(((DateTime)x - (DateTime)y).Duration() <= timeSpan);
}
if (x is TimeSpan && y is TimeSpan)
{
return(((TimeSpan)x - (TimeSpan)y).Duration() <= timeSpan);
}
}
return(x.Equals(y));
}
/// <summary>
/// Compares two objects for equality within a tolerance.
/// </summary>
public bool AreEqual(object x, object y, ref Tolerance tolerance)
{
this.failurePoints = new ArrayList();
if (x == null && y == null)
{
return(true);
}
if (x == null || y == null)
{
return(false);
}
if (object.ReferenceEquals(x, y))
{
return(true);
}
Type xType = x.GetType();
Type yType = y.GetType();
EqualityAdapter externalComparer = GetExternalComparer(x, y);
if (externalComparer != null)
{
return(externalComparer.AreEqual(x, y));
}
if (xType.IsArray && yType.IsArray && !compareAsCollection)
{
return(ArraysEqual((Array)x, (Array)y, ref tolerance));
}
if (x is IDictionary && y is IDictionary)
{
return(DictionariesEqual((IDictionary)x, (IDictionary)y, ref tolerance));
}
//if (x is ICollection && y is ICollection)
// return CollectionsEqual((ICollection)x, (ICollection)y, ref tolerance);
if (x is IEnumerable && y is IEnumerable && !(x is string && y is string))
{
return(EnumerablesEqual((IEnumerable)x, (IEnumerable)y, ref tolerance));
}
if (x is string && y is string)
{
return(StringsEqual((string)x, (string)y));
}
if (x is Stream && y is Stream)
{
return(StreamsEqual((Stream)x, (Stream)y));
}
if (x is DirectoryInfo && y is DirectoryInfo)
{
return(DirectoriesEqual((DirectoryInfo)x, (DirectoryInfo)y));
}
if (Numerics.IsNumericType(x) && Numerics.IsNumericType(y))
{
return(Numerics.AreEqual(x, y, ref tolerance));
}
if (tolerance != null && tolerance.Value is TimeSpan)
{
TimeSpan amount = (TimeSpan)tolerance.Value;
if (x is DateTime && y is DateTime)
{
return(((DateTime)x - (DateTime)y).Duration() <= amount);
}
if (x is TimeSpan && y is TimeSpan)
{
return(((TimeSpan)x - (TimeSpan)y).Duration() <= amount);
}
}
#if CLR_2_0 || CLR_4_0
if (FirstImplementsIEquatableOfSecond(xType, yType))
{
return(InvokeFirstIEquatableEqualsSecond(x, y));
}
else if (FirstImplementsIEquatableOfSecond(yType, xType))
{
return(InvokeFirstIEquatableEqualsSecond(y, x));
}
#endif
return(x.Equals(y));
}
private bool ObjectsEqual(object expected, object actual, ref Tolerance tolerance)
{
if (expected == null && actual == null)
{
return(true);
}
if (expected == null || actual == null)
{
return(false);
}
if (object.ReferenceEquals(expected, actual))
{
return(true);
}
Type xType = expected.GetType();
Type yType = actual.GetType();
EqualityAdapter externalComparer = GetExternalComparer(expected, actual);
if (externalComparer != null)
{
return(externalComparer.AreEqual(expected, actual));
}
if (xType.IsArray && yType.IsArray && !compareAsCollection)
{
return(ArraysEqual((Array)expected, (Array)actual, ref tolerance));
}
if (expected is IDictionary && actual is IDictionary)
{
return(DictionariesEqual((IDictionary)expected, (IDictionary)actual, ref tolerance));
}
if (expected is IEnumerable && actual is IEnumerable && !(expected is string && actual is string))
{
return(EnumerablesEqual((IEnumerable)expected, (IEnumerable)actual, ref tolerance));
}
if (expected is string && actual is string)
{
return(StringsEqual((string)expected, (string)actual));
}
if (expected is Stream && actual is Stream)
{
return(StreamsEqual((Stream)expected, (Stream)actual));
}
#if !PORTABLE
if (expected is DirectoryInfo && actual is DirectoryInfo)
{
return(DirectoriesEqual((DirectoryInfo)expected, (DirectoryInfo)actual));
}
#endif
if (Numerics.IsNumericType(expected) && Numerics.IsNumericType(actual))
{
return(Numerics.AreEqual(expected, actual, ref tolerance));
}
if (tolerance != null && tolerance.Value is TimeSpan)
{
TimeSpan amount = (TimeSpan)tolerance.Value;
if (expected is DateTime && actual is DateTime)
{
return(((DateTime)expected - (DateTime)actual).Duration() <= amount);
}
if (expected is TimeSpan && actual is TimeSpan)
{
return(((TimeSpan)expected - (TimeSpan)actual).Duration() <= amount);
}
}
#if (CLR_2_0 || CLR_4_0) && !NETCF
if (FirstImplementsIEquatableOfSecond(xType, yType))
{
return(InvokeFirstIEquatableEqualsSecond(expected, actual));
}
else if (FirstImplementsIEquatableOfSecond(yType, xType))
{
return(InvokeFirstIEquatableEqualsSecond(actual, expected));
}
#endif
return(expected.Equals(actual));
}
private bool ObjectsEqual(object expected, object actual, ref Tolerance tolerance)
{
if (expected == null && actual == null)
{
return(true);
}
if (expected == null || actual == null)
{
return(false);
}
if (object.ReferenceEquals(expected, actual))
{
return(true);
}
Type xType = expected.GetType();
Type yType = actual.GetType();
EqualityAdapter externalComparer = GetExternalComparer(expected, actual);
if (externalComparer != null)
{
return(externalComparer.AreEqual(expected, actual));
}
if (xType.IsArray && yType.IsArray && !compareAsCollection)
{
return(ArraysEqual((Array)expected, (Array)actual, ref tolerance));
}
if (expected is IDictionary && actual is IDictionary)
{
return(DictionariesEqual((IDictionary)expected, (IDictionary)actual, ref tolerance));
}
// Issue #70 - EquivalentTo isn't compatible with IgnoreCase for dictionaries
if (expected is DictionaryEntry && actual is DictionaryEntry)
{
return(DictionaryEntriesEqual((DictionaryEntry)expected, (DictionaryEntry)actual, ref tolerance));
}
#if CLR_2_0 || CLR_4_0
// IDictionary<,> will eventually try to compare it's key value pairs when using CollectionTally
if (xType.IsGenericType && xType.GetGenericTypeDefinition() == typeof(KeyValuePair <,>) &&
yType.IsGenericType && yType.GetGenericTypeDefinition() == typeof(KeyValuePair <,>))
{
Tolerance keyTolerance = new Tolerance(0);
object xKey = xType.GetProperty("Key").GetValue(expected, null);
object yKey = yType.GetProperty("Key").GetValue(actual, null);
object xValue = xType.GetProperty("Value").GetValue(expected, null);
object yValue = yType.GetProperty("Value").GetValue(actual, null);
return(AreEqual(xKey, yKey, ref keyTolerance) && AreEqual(xValue, yValue, ref tolerance));
}
#endif
if (expected is IEnumerable && actual is IEnumerable && !(expected is string && actual is string))
{
return(EnumerablesEqual((IEnumerable)expected, (IEnumerable)actual, ref tolerance));
}
if (expected is string && actual is string)
{
return(StringsEqual((string)expected, (string)actual));
}
if (expected is Stream && actual is Stream)
{
return(StreamsEqual((Stream)expected, (Stream)actual));
}
if (expected is char && actual is char)
{
return(CharsEqual((char)expected, (char)actual));
}
if (expected is DirectoryInfo && actual is DirectoryInfo)
{
return(DirectoriesEqual((DirectoryInfo)expected, (DirectoryInfo)actual));
}
if (Numerics.IsNumericType(expected) && Numerics.IsNumericType(actual))
{
return(Numerics.AreEqual(expected, actual, ref tolerance));
}
if (tolerance != null && tolerance.Value is TimeSpan)
{
TimeSpan amount = (TimeSpan)tolerance.Value;
if (expected is DateTime && actual is DateTime)
{
return(((DateTime)expected - (DateTime)actual).Duration() <= amount);
}
#if CLR_2_0 || CLR_4_0
if (expected is DateTimeOffset && actual is DateTimeOffset)
{
return(((DateTimeOffset)expected - (DateTimeOffset)actual).Duration() <= amount);
}
#endif
if (expected is TimeSpan && actual is TimeSpan)
{
return(((TimeSpan)expected - (TimeSpan)actual).Duration() <= amount);
}
}
#if CLR_2_0 || CLR_4_0
if (FirstImplementsIEquatableOfSecond(xType, yType))
{
return(InvokeFirstIEquatableEqualsSecond(expected, actual));
}
else if (FirstImplementsIEquatableOfSecond(yType, xType))
{
return(InvokeFirstIEquatableEqualsSecond(actual, expected));
}
#endif
return(expected.Equals(actual));
}
/// <summary>
/// Compares two objects for equality.
/// </summary>
public bool ObjectsEqual(object x, object y)
{
this.failurePoints = new List <object>();
if (x == null && y == null)
{
return(true);
}
if (x == null || y == null)
{
return(false);
}
Type xType = x.GetType();
Type yType = y.GetType();
if (xType.IsArray && yType.IsArray && !compareAsCollection)
{
return(ArraysEqual((Array)x, (Array)y));
}
if (x is ICollection && y is ICollection)
{
return(CollectionsEqual((ICollection)x, (ICollection)y));
}
if (x is IEnumerable && y is IEnumerable && !(x is string && y is string))
{
return(EnumerablesEqual((IEnumerable)x, (IEnumerable)y));
}
if (externalComparer != null)
{
return(externalComparer.ObjectsEqual(x, y));
}
if (x is string && y is string)
{
return(StringsEqual((string)x, (string)y));
}
if (x is Stream && y is Stream)
{
return(StreamsEqual((Stream)x, (Stream)y));
}
if (x is DirectoryInfo && y is DirectoryInfo)
{
return(DirectoriesEqual((DirectoryInfo)x, (DirectoryInfo)y));
}
if (Numerics.IsNumericType(x) && Numerics.IsNumericType(y))
{
return(Numerics.AreEqual(x, y, ref tolerance));
}
if (tolerance != null && tolerance.Value is TimeSpan)
{
TimeSpan amount = (TimeSpan)tolerance.Value;
if (x is DateTime && y is DateTime)
{
return(((DateTime)x - (DateTime)y).Duration() <= amount);
}
if (x is TimeSpan && y is TimeSpan)
{
return(((TimeSpan)x - (TimeSpan)y).Duration() <= amount);
}
}
return(x.Equals(y));
}