public void ReturnsTrueForClassImplementingStructuralEqualityAndIsNotStructuralEqual()
{
object left = new OtherClassWithEquality {
SomeNumber = 5
};
object right = new OtherClassWithEquality {
SomeNumber = 6
};
var result = Testers.CheckInequality(left, right);
Assert.True(result);
}
public void ReturnsTrueForDefaultClassEvenIfStructurallyEqual()
{
object left = new AnotherClass {
SomeNumber = 5, SomeString = "Hi", someByte = 2, someChar = 'B'
};
object right = new AnotherClass {
SomeNumber = 5, SomeString = "Hi", someByte = 2, someChar = 'B'
};
var result = Testers.CheckInequality(left, right);
Assert.True(result);
}
public void ReturnsFalseIfNonOfTheObjectsMatchTheTypeOfThePopulatedItem()
{
object populatedItem = new OtherClassWithEquality {
SomeNumber = 42
};
IEnumerable <object> others = new object[]
{
"Hello",
5,
'A',
};
var result = Testers.CheckInequality(others, populatedItem);
Assert.True(result);
}
private static bool TestPopulatedTypes(Type t, IDictionary <Type, Func <object> > constructors)
{
var ctor = constructors[t];
var a = ctor();
var b = ctor();
var c = ctor();
var equalMembers = new[] { a, b, c };
var tType = a.GetType();
var(propertyValues, fieldValues) = Creator.GetPropertyAndFieldValues(tType, constructors);
var memberUnequalItems = SetupEqualityChecksBasedOnProperties(propertyValues, equalMembers, ctor, fieldValues);
var badFields = SetupEqualityChecksBasedOnFields(fieldValues, equalMembers, ctor, propertyValues);
memberUnequalItems.AddRange(badFields);
var empty = ctor();
var emptyInequality = Testers.CheckInequality(a, empty);
var bEquality = Testers.CheckEquality(a, b);
var bCommutativeEquality = Testers.CheckEquality(b, a);
var cEquality = Testers.CheckEquality(a, c);
var associativeEquality = Testers.CheckEquality(b, c);
var memberInequality = Testers.CheckInequality(memberUnequalItems, a);
var nullInequality = Testers.CheckNullInequality(a);
var selfEquality = Testers.CheckEquality(a, a);
var typeInequality = Testers.CheckTypeInequality(tType, a);
return
(nullInequality &&
emptyInequality &&
bEquality &&
bCommutativeEquality &&
cEquality &&
associativeEquality &&
memberInequality &&
selfEquality &&
typeInequality);
}
public void ReturnsFalseForBasicObjectsIfOneOfThemIsThePopulatedItem()
{
object populatedItem = new AnotherClass {
someChar = 'T', someByte = 32, SomeNumber = 42, SomeString = "String"
};
IEnumerable <object> others = new []
{
new AnotherClass {
someChar = 'T', someByte = 32, SomeNumber = 42, SomeString = "String"
},
populatedItem,
new AnotherClass {
someChar = 'T', someByte = 32, SomeNumber = 42, SomeString = "String"
},
};
var result = Testers.CheckInequality(others, populatedItem);
Assert.False(result);
}
public void ReturnsFalseIfOneObjectIsThePopulatedObject()
{
object populatedItem = new OtherClassWithEquality {
SomeNumber = 42
};
IEnumerable <object> others = new[]
{
new OtherClassWithEquality {
SomeNumber = 42
},
new OtherClassWithEquality {
SomeNumber = 40
},
populatedItem,
};
var result = Testers.CheckInequality(others, populatedItem);
Assert.False(result);
}
public void ReturnsTrueForObjectsThatDifferStructurally()
{
IEnumerable <object> others = new[]
{
new OtherClassWithEquality {
SomeNumber = 39
},
new OtherClassWithEquality {
SomeNumber = 40
},
new OtherClassWithEquality {
SomeNumber = 41
},
};
object populatedItem = new OtherClassWithEquality {
SomeNumber = 42
};
var result = Testers.CheckInequality(others, populatedItem);
Assert.True(result);
}
public void ReturnsTrueForBasicObjectsEvenIfStructurallyTheSame()
{
IEnumerable <object> others = new []
{
new AnotherClass {
someChar = 'T', someByte = 32, SomeNumber = 42, SomeString = "String"
},
new AnotherClass {
someChar = 'T', someByte = 32, SomeNumber = 42, SomeString = "String"
},
new AnotherClass {
someChar = 'T', someByte = 32, SomeNumber = 42, SomeString = "String"
},
};
object populatedItem = new AnotherClass {
someChar = 'T', someByte = 32, SomeNumber = 42, SomeString = "String"
};
var result = Testers.CheckInequality(others, populatedItem);
Assert.True(result);
}