public bool Handle(IEquivalencyValidationContext context, IEquivalencyValidator parent, IEquivalencyAssertionOptions config)
{
bool expectationIsNotNull = AssertionScope.Current
.ForCondition(!ReferenceEquals(context.Expectation, null))
.FailWith(
"Expected {context:subject} to be <null>, but found {0}.",
context.Subject);
bool subjectIsNotNull =
AssertionScope.Current.ForCondition(
!ReferenceEquals(context.Subject, null))
.FailWith(
"Expected {context:object} to be {0}{reason}, but found {1}.",
context.Expectation,
context.Subject);
IEnumerable<SelectedMemberInfo> selectedMembers = GetSelectedMembers(context, config).ToArray();
if (context.IsRoot && !selectedMembers.Any())
{
throw new InvalidOperationException(
"No members were found for comparison. " +
"Please specify some members to include in the comparison or choose a more meaningful assertion.");
}
if (expectationIsNotNull && subjectIsNotNull)
{
foreach (var selectedMemberInfo in selectedMembers)
{
AssertMemberEquality(context, parent, selectedMemberInfo, config);
}
}
return true;
}
public bool Handle(IEquivalencyValidationContext context, IEquivalencyValidator parent,
IEquivalencyAssertionOptions config)
{
return config.UserEquivalencySteps
.Where(s => s.CanHandle(context, config))
.Any(step => step.Handle(context, parent, config));
}
/// <summary>
/// Applies a step as part of the task to compare two objects for structural equality.
/// </summary>
/// <value>
/// Should return <c>true</c> if the subject matches the expectation or if no additional assertions
/// have to be executed. Should return <c>false</c> otherwise.
/// </value>
/// <remarks>
/// May throw when preconditions are not met or if it detects mismatching data.
/// </remarks>
public bool Handle(EquivalencyValidationContext context, IEquivalencyValidator parent,
IEquivalencyAssertionOptions config)
{
context.Subject.Should().Be(context.Expectation, context.Reason, context.ReasonArgs);
return true;
}
/// <summary>
/// Applies a step as part of the task to compare two objects for structural equality.
/// </summary>
/// <value>
/// Should return <c>true</c> if the subject matches the expectation or if no additional assertions
/// have to be executed. Should return <c>false</c> otherwise.
/// </value>
/// <remarks>
/// May throw when preconditions are not met or if it detects mismatching data.
/// </remarks>
public bool Handle(EquivalencyValidationContext context, IEquivalencyValidator parent)
{
if (context.PropertyInfo != null)
{
return context.Config.AssertionRules.Any(rule => rule.AssertEquality(context));
}
return false;
}
private void AssertPropertyEquality(EquivalencyValidationContext context, IEquivalencyValidator parent,
PropertyInfo propertyInfo)
{
var nestedContext = context.CreateForNestedProperty(propertyInfo);
if (nestedContext != null)
{
parent.AssertEqualityUsing(nestedContext);
}
}
public bool Handle(
IEquivalencyValidationContext context,
IEquivalencyValidator parent,
IEquivalencyAssertionOptions config)
{
var equivalencyValidationContext = CreateAdjustedCopy(context);
return eqivalencyStep.Handle(equivalencyValidationContext, parent, config);
}
private void EnumerateElements(EquivalencyValidationContext context, object[] subject, object[] expectation,
IEquivalencyValidator parent)
{
if (!subject.SequenceEqual(expectation))
{
for (int i = 0; i < subject.Length; i++)
{
parent.AssertEqualityUsing(context.CreateForCollectionItem(i, subject[i], expectation[i]));
}
}
}
private static void AssertMemberEquality(IEquivalencyValidationContext context, IEquivalencyValidator parent, SelectedMemberInfo selectedMemberInfo, IEquivalencyAssertionOptions config)
{
var matchingMember = FindMatchFor(selectedMemberInfo, context, config);
if (matchingMember != null)
{
var nestedContext = context.CreateForNestedMember(selectedMemberInfo, matchingMember);
if (nestedContext != null)
{
parent.AssertEqualityUsing(nestedContext);
}
}
}
private void AssertPropertyEquality(EquivalencyValidationContext context, IEquivalencyValidator parent, PropertyInfo propertyInfo, IEquivalencyAssertionOptions config)
{
var matchingProperty = FindMatchFor(propertyInfo, context, config.MatchingRules);
if (matchingProperty != null)
{
EquivalencyValidationContext nestedContext = context.CreateForNestedProperty(propertyInfo, matchingProperty);
if (nestedContext != null)
{
parent.AssertEqualityUsing(nestedContext);
}
}
}
/// <summary>
/// Applies a step as part of the task to compare two objects for structural equality.
/// </summary>
/// <value>
/// Should return <c>true</c> if the subject matches the expectation or if no additional assertions
/// have to be executed. Should return <c>false</c> otherwise.
/// </value>
/// <remarks>
/// May throw when preconditions are not met or if it detects mismatching data.
/// </remarks>
public bool Handle(EquivalencyValidationContext context, IEquivalencyValidator parent, IEquivalencyAssertionOptions config)
{
if (AssertExpectationIsCollection(context.Expectation))
{
var validator = new EnumerableEquivalencyValidator(parent, context)
{
Recursive = context.IsRoot || config.IsRecursive,
OrderingRules = config.OrderingRules
};
validator.Execute(ToArray(context.Subject), ToArray(context.Expectation));
}
return true;
}
/// <summary>
/// Applies a step as part of the task to compare two objects for structural equality.
/// </summary>
/// <value>
/// Should return <c>true</c> if the subject matches the expectation or if no additional assertions
/// have to be executed. Should return <c>false</c> otherwise.
/// </value>
/// <remarks>
/// May throw when preconditions are not met or if it detects mismatching data.
/// </remarks>
public bool Handle(EquivalencyValidationContext context, IEquivalencyValidator parent)
{
IEnumerable<PropertyInfo> selectedProperties = context.SelectedProperties.ToArray();
if (context.IsRoot && !selectedProperties.Any())
{
throw new InvalidOperationException("Please specify some properties to include in the comparison.");
}
foreach (PropertyInfo propertyInfo in selectedProperties)
{
AssertPropertyEquality(context, parent, propertyInfo);
}
return true;
}
/// <summary>
/// Applies a step as part of the task to compare two objects for structural equality.
/// </summary>
/// <value>
/// Should return <c>true</c> if the subject matches the expectation or if no additional assertions
/// have to be executed. Should return <c>false</c> otherwise.
/// </value>
/// <remarks>
/// May throw when preconditions are not met or if it detects mismatching data.
/// </remarks>
public bool Handle(EquivalencyValidationContext context, IEquivalencyValidator parent, IEquivalencyAssertionOptions config)
{
Type subjectType = EnumerableEquivalencyStep.GetSubjectType(context, config);
Type[] interfaces = GetIEnumerableInterfaces(subjectType);
bool multipleInterfaces = (interfaces.Count() > 1);
if (multipleInterfaces)
{
IEnumerable<Type> enumerableTypes = interfaces.Select(
type => type.GetGenericArguments().Single());
AssertionScope.Current.FailWith(
String.Format(
"{{context:Subject}} is enumerable for more than one type. " +
"It is not known which type should be use for equivalence.{0}" +
"IEnumerable is implemented for the following types: {1}",
Environment.NewLine,
String.Join(", ", enumerableTypes)));
}
if (AssertExpectationIsCollection(context.Expectation))
{
var validator = new EnumerableEquivalencyValidator(parent, context)
{
Recursive = context.IsRoot || config.IsRecursive,
OrderingRules = config.OrderingRules
};
Type typeOfEnumeration = GetTypeOfEnumeration(subjectType);
Expression subjectToArray = ToArray(context.Subject, typeOfEnumeration);
Expression expectationToArray =
Expression.Constant(EnumerableEquivalencyStep.ToArray(context.Expectation));
MethodCallExpression executeExpression = Expression.Call(
Expression.Constant(validator),
"Execute",
new Type[] { typeOfEnumeration },
subjectToArray,
expectationToArray);
Expression.Lambda(executeExpression).Compile().DynamicInvoke();
}
return true;
}
/// <summary>
/// Applies a step as part of the task to compare two objects for structural equality.
/// </summary>
/// <value>
/// Should return <c>true</c> if the subject matches the expectation or if no additional assertions
/// have to be executed. Should return <c>false</c> otherwise.
/// </value>
/// <remarks>
/// May throw when preconditions are not met or if it detects mismatching data.
/// </remarks>
public virtual bool Handle(EquivalencyValidationContext context, IEquivalencyValidator structuralEqualityValidator, IEquivalencyAssertionOptions config)
{
if (ReferenceEquals(context.Subject, context.Expectation))
{
return true;
}
if (ReferenceEquals(context.Expectation, null))
{
AssertionScope.Current.FailWith(
"Expected {context:subject} to be {0}{reason}, but found {1}.", context.Expectation, context.Subject);
return true;
}
return !ReferenceEquals(context.Subject, null) && context.Subject.Equals(context.Expectation);
}
/// <summary>
/// Applies a step as part of the task to compare two objects for structural equality.
/// </summary>
/// <value>
/// Should return <c>true</c> if the subject matches the expectation or if no additional assertions
/// have to be executed. Should return <c>false</c> otherwise.
/// </value>
/// <remarks>
/// May throw when preconditions are not met or if it detects mismatching data.
/// </remarks>
public bool Handle(IEquivalencyValidationContext context, IEquivalencyValidator structuralEqualityValidator, IEquivalencyAssertionOptions config)
{
if (!ReferenceEquals(context.Expectation, null) && !ReferenceEquals(context.Subject, null)
&& !context.Subject.GetType().IsSameOrInherits(context.Expectation.GetType()))
{
Type expectationType = context.Expectation.GetType();
object convertedSubject;
if (TryChangeType(context.Subject, expectationType, out convertedSubject))
{
var newContext = context.CreateWithDifferentSubject(convertedSubject, expectationType);
structuralEqualityValidator.AssertEqualityUsing(newContext);
return true;
}
}
return false;
}
/// <summary>
/// Applies a step as part of the task to compare two objects for structural equality.
/// </summary>
/// <value>
/// Should return <c>true</c> if the subject matches the expectation or if no additional assertions
/// have to be executed. Should return <c>false</c> otherwise.
/// </value>
/// <remarks>
/// May throw when preconditions are not met or if it detects mismatching data.
/// </remarks>
public bool Handle(EquivalencyValidationContext context, IEquivalencyValidator structuralEqualityValidator)
{
if (!ReferenceEquals(context.Expectation, null) && !ReferenceEquals(context.Subject, null)
&& !context.Subject.GetType().IsSameOrInherits(context.Expectation.GetType()))
{
try
{
context.Subject = Convert.ChangeType(context.Subject, context.Expectation.GetType(), CultureInfo.CurrentCulture);
}
catch (FormatException)
{
}
catch (InvalidCastException)
{
}
}
return false;
}
/// <summary>
/// Applies a step as part of the task to compare two objects for structural equality.
/// </summary>
/// <value>
/// Should return <c>true</c> if the subject matches the expectation or if no additional assertions
/// have to be executed. Should return <c>false</c> otherwise.
/// </value>
/// <remarks>
/// May throw when preconditions are not met or if it detects mismatching data.
/// </remarks>
public bool Handle(EquivalencyValidationContext context, IEquivalencyValidator parent)
{
AssertExpectationIsCollection(context);
var subject = ((IEnumerable)context.Subject).Cast<object>().ToArray();
var expectation = ((IEnumerable)context.Expectation).Cast<object>().ToArray();
AssertCollectionsHaveEqualLength(context, subject, expectation);
if (context.IsRoot || context.Config.IsRecursive)
{
EnumerateElements(context, subject, expectation, parent);
}
else
{
subject.Should().Equal(expectation, context.Reason, context.ReasonArgs);
}
return true;
}
/// <summary>
/// Applies a step as part of the task to compare two objects for structural equality.
/// </summary>
/// <value>
/// Should return <c>true</c> if the subject matches the expectation or if no additional assertions
/// have to be executed. Should return <c>false</c> otherwise.
/// </value>
/// <remarks>
/// May throw when preconditions are not met or if it detects mismatching data.
/// </remarks>
public bool Handle(IEquivalencyValidationContext context, IEquivalencyValidator parent,
IEquivalencyAssertionOptions config)
{
switch (config.EnumEquivalencyHandling)
{
case EnumEquivalencyHandling.ByValue:
CompareByValue(context);
break;
case EnumEquivalencyHandling.ByName:
context.Subject.ToString()
.Should()
.Be(context.Expectation.ToString(), context.Reason, context.ReasonArgs);
break;
default:
throw new InvalidOperationException(string.Format("Don't know how to handle {0}",
config.EnumEquivalencyHandling));
}
return true;
}
/// <summary>
/// Applies a step as part of the task to compare two objects for structural equality.
/// </summary>
/// <value>
/// Should return <c>true</c> if the subject matches the expectation or if no additional assertions
/// have to be executed. Should return <c>false</c> otherwise.
/// </value>
/// <remarks>
/// May throw when preconditions are not met or if it detects mismatching data.
/// </remarks>
public virtual bool Handle(EquivalencyValidationContext context, IEquivalencyValidator parent, IEquivalencyAssertionOptions config)
{
IEnumerable<PropertyInfo> selectedProperties = GetSelectedProperties(context, config).ToArray();
if (context.IsRoot && !selectedProperties.Any())
{
throw new InvalidOperationException("Please specify some properties to include in the comparison.");
}
bool expectationIsNotNull = AssertionScope.Current
.ForCondition(!ReferenceEquals(context.Expectation, null))
.FailWith("Expected {context:subject} to be <null>, but found {0}.", context.Subject);
if (expectationIsNotNull)
{
foreach (PropertyInfo propertyInfo in selectedProperties)
{
AssertPropertyEquality(context, parent, propertyInfo, config);
}
}
return true;
}
/// <summary>
/// Applies a step as part of the task to compare two objects for structural equality.
/// </summary>
/// <value>
/// Should return <c>true</c> if the subject matches the expectation or if no additional assertions
/// have to be executed. Should return <c>false</c> otherwise.
/// </value>
/// <remarks>
/// May throw when preconditions are not met or if it detects mismatching data.
/// </remarks>
public bool Handle(IEquivalencyValidationContext context, IEquivalencyValidator parent,
IEquivalencyAssertionOptions config)
{
Type subjectType = config.GetSubjectType(context);
var interfaceTypes = GetIEnumerableInterfaces(subjectType)
.Select(type => "IEnumerable<" + type.GetGenericArguments().Single() + ">")
.ToList();
AssertionScope.Current
.ForCondition(interfaceTypes.Count() == 1)
.FailWith("{context:Subject} implements {0}, so cannot determine which one " +
"to use for asserting the equivalency of the collection. ", interfaceTypes);
if (AssertExpectationIsCollection(context.Expectation, context.Subject))
{
var validator = new EnumerableEquivalencyValidator(parent, context)
{
Recursive = context.IsRoot || config.IsRecursive,
OrderingRules = config.OrderingRules
};
Type typeOfEnumeration = GetTypeOfEnumeration(subjectType);
Expression subjectToArray = ToArray(context.Subject, typeOfEnumeration);
Expression expectationToArray =
Expression.Constant(EnumerableEquivalencyStep.ToArray(context.Expectation));
MethodCallExpression executeExpression = Expression.Call(
Expression.Constant(validator),
ExpressionExtensions.GetMethodName(() => validator.Execute<object>(null, null)),
new[] {typeOfEnumeration},
subjectToArray,
expectationToArray);
Expression.Lambda(executeExpression).Compile().DynamicInvoke();
}
return true;
}
/// <summary>
/// Applies a step as part of the task to compare two objects for structural equality.
/// </summary>
/// <value>
/// Should return <c>true</c> if the subject matches the expectation or if no additional assertions
/// have to be executed. Should return <c>false</c> otherwise.
/// </value>
/// <remarks>
/// May throw when preconditions are not met or if it detects mismatching data.
/// </remarks>
public virtual bool Handle(IEquivalencyValidationContext context, IEquivalencyValidator parent, IEquivalencyAssertionOptions config)
{
var subject = (IDictionary)context.Subject;
var expectation = context.Expectation as IDictionary;
if (PreconditionsAreMet(context, expectation, subject))
{
foreach (object key in subject.Keys)
{
if (config.IsRecursive)
{
parent.AssertEqualityUsing(context.CreateForDictionaryItem(key, subject[key], expectation[key]));
}
else
{
subject[key].Should().Be(expectation[key], context.Reason, context.ReasonArgs);
}
}
}
return true;
}
/// <summary>
/// Applies a step as part of the task to compare two objects for structural equality.
/// </summary>
/// <value>
/// Should return <c>true</c> if the subject matches the expectation or if no additional assertions
/// have to be executed. Should return <c>false</c> otherwise.
/// </value>
/// <remarks>
/// May throw when preconditions are not met or if it detects mismatching data.
/// </remarks>
public bool Handle(EquivalencyValidationContext context, IEquivalencyValidator structuralEqualityValidator)
{
if (ReferenceEquals(context.Subject, context.Expectation))
{
return true;
}
if (ReferenceEquals(context.Expectation, null))
{
string propertyPath = context.PropertyDescription;
if (propertyPath.Length == 0)
{
propertyPath = "subject";
}
context.Verification
.FailWith("Expected " + propertyPath + " to be {0}{reason}, but found {1}.", context.Expectation,
context.Subject);
}
return !ReferenceEquals(context.Subject, null) && context.Subject.Equals(context.Expectation);
}
/// <summary>
/// Applies a step as part of the task to compare two objects for structural equality.
/// </summary>
/// <value>
/// Should return <c>true</c> if the subject matches the expectation or if no additional assertions
/// have to be executed. Should return <c>false</c> otherwise.
/// </value>
/// <remarks>
/// May throw when preconditions are not met or if it detects mismatching data.
/// </remarks>
public bool Handle(IEquivalencyValidationContext context, IEquivalencyValidator parent,
IEquivalencyAssertionOptions config)
{
switch (config.EnumEquivalencyHandling)
{
case EnumEquivalencyHandling.ByValue:
long subjectsUnderlyingValue = Convert.ToInt64(context.Subject);
long expectationsUnderlyingValue = Convert.ToInt64(context.Expectation);
subjectsUnderlyingValue.Should().Be(expectationsUnderlyingValue, context.Because, context.BecauseArgs);
break;
case EnumEquivalencyHandling.ByName:
context.Subject.ToString().Should().Be(context.Expectation.ToString(), context.Because, context.BecauseArgs);
break;
default:
throw new InvalidOperationException(string.Format("Don't know how to handle {0}",
config.EnumEquivalencyHandling));
}
return true;
}
public bool Handle(IEquivalencyValidationContext context, IEquivalencyValidator parent,
IEquivalencyAssertionOptions config)
{
Array subjectAsArray = (Array) context.Subject;
if (AreComparable(context, subjectAsArray))
{
Digit digit = BuildDigitsRepresentingAllIndices(subjectAsArray);
do
{
var expectation = ((Array) context.Expectation).GetValue(digit.Indices);
IEquivalencyValidationContext itemContext = context.CreateForCollectionItem(
string.Join(",", digit.Indices),
subjectAsArray.GetValue(digit.Indices),
expectation);
parent.AssertEqualityUsing(itemContext);
}
while (digit.Increment());
}
return true;
}
protected override EquivalencyResult OnHandle(Comparands comparands, IEquivalencyValidationContext context, IEquivalencyValidator nestedValidator)
{
var subject = comparands.Subject as DataTable;
var expectation = comparands.Expectation as DataTable;
if (expectation is null)
{
if (subject is not null)
{
AssertionScope.Current.FailWith("Expected {context:DataTable} value to be null, but found {0}", subject);
}
}
else
{
if (subject is null)
{
if (comparands.Subject is null)
{
AssertionScope.Current.FailWith("Expected {context:DataTable} to be non-null, but found null");
}
else
{
AssertionScope.Current.FailWith("Expected {context:DataTable} to be of type {0}, but found {1} instead", expectation.GetType(), comparands.Subject.GetType());
}
}
else
{
var dataSetConfig = context.Options as DataEquivalencyAssertionOptions <DataSet>;
var dataTableConfig = context.Options as DataEquivalencyAssertionOptions <DataTable>;
if (dataSetConfig?.AllowMismatchedTypes != true &&
dataTableConfig?.AllowMismatchedTypes != true)
{
AssertionScope.Current
.ForCondition(subject.GetType() == expectation.GetType())
.FailWith("Expected {context:DataTable} to be of type '{0}'{reason}, but found '{1}'", expectation.GetType(), subject.GetType());
}
var selectedMembers = GetMembersFromExpectation(context.CurrentNode, comparands, context.Options)
.ToDictionary(member => member.Name);
CompareScalarProperties(subject, expectation, selectedMembers);
CompareCollections(comparands, context, nestedValidator, context.Options, selectedMembers);
}
}
return(EquivalencyResult.AssertionCompleted);
}
private static void HandleCore <TSubject, TExpectation>(IMaybe <TSubject> subject, IMaybe <TExpectation> expectation, IEquivalencyValidationContext context, IEquivalencyValidator parent)
{
expectation.Match(none, some)();
void none()
{
subject.Match(none: () => { },
some: _ => new Action(() => AssertionScope.Current.FailWith("Expected subject to be empty, but it was filled.")))();
}
void some(TExpectation e)
{
subject.Match(none: () => AssertionScope.Current.FailWith("Expected {context:subject} to be filled, but it was empty."),
some: (s) => new Action(() => parent.AssertEqualityUsing(context.CreateForMaybeValue(s, e))))();
}
}
public EquivalencyResult Handle(Comparands comparands, IEquivalencyValidationContext context, IEquivalencyValidator nestedValidator)
{
doAction();
return(EquivalencyResult.AssertionCompleted);
}
EquivalencyResult IEquivalencyStep.Handle(Comparands comparands, IEquivalencyValidationContext context, IEquivalencyValidator nestedValidator)
{
return(comparands.Subject?.GetType()?.GetMethod("<Clone>$") != null ? EquivalencyResult.AssertionCompleted : EquivalencyResult.ContinueWithNext);
}
public bool Handle(IEquivalencyValidationContext context, IEquivalencyValidator parent, IEquivalencyAssertionOptions config)
{
return assertionRule.AssertEquality(context);
}
public EquivalencyResult Handle(Comparands comparands, IEquivalencyValidationContext context, IEquivalencyValidator nestedValidator)
{
foreach (IEquivalencyStep step in context.Options.UserEquivalencySteps)
{
if (step.Handle(comparands, context, nestedValidator) == EquivalencyResult.AssertionCompleted)
{
return(EquivalencyResult.AssertionCompleted);
}
}
return(EquivalencyResult.ContinueWithNext);
}
public EquivalencyResult Handle(Comparands comparands, IEquivalencyValidationContext context, IEquivalencyValidator nestedValidator)
{
if (!comparands.GetExpectedType(context.Options).IsEnum)
{
return(EquivalencyResult.ContinueWithNext);
}
bool succeeded = Execute.Assertion
.ForCondition(comparands.Subject?.GetType().IsEnum == true)
.FailWith(() =>
{
decimal?expectationsUnderlyingValue = ExtractDecimal(comparands.Expectation);
string expectationName = GetDisplayNameForEnumComparison(comparands.Expectation, expectationsUnderlyingValue);
return(new FailReason($"Expected {{context:enum}} to be equivalent to {expectationName}{{reason}}, but found {{0}}.", comparands.Subject));
});
if (succeeded)
{
switch (context.Options.EnumEquivalencyHandling)
{
case EnumEquivalencyHandling.ByValue:
HandleByValue(comparands);
break;
case EnumEquivalencyHandling.ByName:
HandleByName(comparands);
break;
default:
throw new InvalidOperationException($"Do not know how to handle {context.Options.EnumEquivalencyHandling}");
}
}
return(EquivalencyResult.AssertionCompleted);
}
/// <summary>
/// Applies a step as part of the task to compare two objects for structural equality.
/// </summary>
/// <value>
/// Should return <c>true</c> if the subject matches the expectation or if no additional assertions
/// have to be executed. Should return <c>false</c> otherwise.
/// </value>
/// <remarks>
/// May throw when preconditions are not met or if it detects mismatching data.
/// </remarks>
public bool Handle(IEquivalencyValidationContext context, IEquivalencyValidator structuralEqualityValidator, IEquivalencyAssertionOptions config)
{
context.Subject.Should().Be(context.Expectation, context.Because, context.BecauseArgs);
return(true);
}
public virtual bool Handle(EquivalencyValidationContext context, IEquivalencyValidator structuralEqualityValidator, IEquivalencyAssertionOptions config)
{
context.Subject.Should().NotBeDefault( context.Reason, context.ReasonArgs );
return true;
}
public EnumerableEquivalencyValidator(IEquivalencyValidator parent, EquivalencyValidationContext context)
{
this.parent = parent;
this.context = context;
Recursive = false;
}
private static void AssertMemberEquality(IEquivalencyValidationContext context, IEquivalencyValidator parent, SelectedMemberInfo selectedMemberInfo, IEquivalencyAssertionOptions config)
{
SelectedMemberInfo matchingMember = FindMatchFor(selectedMemberInfo, context, config);
if (matchingMember != null)
{
IEquivalencyValidationContext nestedContext =
context.CreateForNestedMember(selectedMemberInfo, matchingMember);
if (nestedContext != null)
{
parent.AssertEqualityUsing(nestedContext);
}
}
}
/// <summary>
/// Applies a step as part of the task to compare two objects for structural equality.
/// </summary>
/// <value>
/// Should return <c>true</c> if the subject matches the expectation or if no additional assertions
/// have to be executed. Should return <c>false</c> otherwise.
/// </value>
/// <remarks>
/// May throw when preconditions are not met or if it detects mismatching data.
/// </remarks>
public virtual bool Handle(IEquivalencyValidationContext context, IEquivalencyValidator structuralEqualityValidator, IEquivalencyAssertionOptions config)
{
return(ReferenceEquals(context.Subject, context.Expectation));
}
/// <summary>
/// Applies a step as part of the task to compare two objects for structural equality.
/// </summary>
/// <value>
/// Should return <c>true</c> if the subject matches the expectation or if no additional assertions
/// have to be executed. Should return <c>false</c> otherwise.
/// </value>
/// <remarks>
/// May throw when preconditions are not met or if it detects mismatching data.
/// </remarks>
public bool Handle(EquivalencyValidationContext context, IEquivalencyValidator structuralEqualityValidator)
{
context.Subject.Should().Be(context.Expectation, context.Reason, context.ReasonArgs);
return true;
}
public EquivalencyResult Handle(Comparands comparands, IEquivalencyValidationContext context, IEquivalencyValidator nestedValidator)
{
if (!context.Options.IsRecursive && !context.CurrentNode.IsRoot)
{
comparands.Subject.Should().Be(comparands.Expectation, context.Reason.FormattedMessage, context.Reason.Arguments);
return(EquivalencyResult.AssertionCompleted);
}
return(EquivalencyResult.ContinueWithNext);
}
#pragma warning restore SA1110
public EquivalencyResult Handle(Comparands comparands, IEquivalencyValidationContext context, IEquivalencyValidator nestedValidator)
{
Type expectedType = comparands.GetExpectedType(context.Options);
if (comparands.Expectation is null || !IsGenericCollection(expectedType))
{
return(EquivalencyResult.ContinueWithNext);
}
Type[] interfaceTypes = GetIEnumerableInterfaces(expectedType);
AssertionScope.Current
.ForCondition(interfaceTypes.Length == 1)
.FailWith(() => new FailReason("{context:Expectation} implements {0}, so cannot determine which one " +
"to use for asserting the equivalency of the collection. ",
interfaceTypes.Select(type => "IEnumerable<" + type.GetGenericArguments().Single() + ">")));
if (AssertSubjectIsCollection(comparands.Subject))
{
var validator = new EnumerableEquivalencyValidator(nestedValidator, context)
{
Recursive = context.CurrentNode.IsRoot || context.Options.IsRecursive,
OrderingRules = context.Options.OrderingRules
};
Type typeOfEnumeration = GetTypeOfEnumeration(expectedType);
var subjectAsArray = EnumerableEquivalencyStep.ToArray(comparands.Subject);
try
{
HandleMethod.MakeGenericMethod(typeOfEnumeration).Invoke(null, new[] { validator, subjectAsArray, comparands.Expectation });
}
catch (TargetInvocationException e)
{
e.Unwrap().Throw();
}
}
return(EquivalencyResult.AssertionCompleted);
}
private static void CompareCollections(Comparands comparands, IEquivalencyValidationContext context, IEquivalencyValidator parent, IEquivalencyAssertionOptions config, Dictionary <string, IMember> selectedMembers)
{
// Note: The collections here are listed in the XML documentation for the DataTable.BeEquivalentTo extension
// method in DataTableAssertions.cs. If this ever needs to change, keep them in sync.
var collectionNames = new[]
{
nameof(DataTable.ChildRelations),
nameof(DataTable.Columns),
nameof(DataTable.Constraints),
nameof(DataTable.ExtendedProperties),
nameof(DataTable.ParentRelations),
nameof(DataTable.PrimaryKey),
nameof(DataTable.Rows),
};
foreach (var collectionName in collectionNames)
{
if (selectedMembers.TryGetValue(collectionName, out IMember expectationMember))
{
IMember matchingMember = FindMatchFor(expectationMember, comparands.Subject, context.CurrentNode, config);
if (matchingMember is not null)
{
IEquivalencyValidationContext nestedContext = context.AsNestedMember(expectationMember);
var nestedComparands = new Comparands
{
Subject = matchingMember.GetValue(comparands.Subject),
Expectation = expectationMember.GetValue(comparands.Expectation),
CompileTimeType = expectationMember.Type
};
parent.RecursivelyAssertEquality(nestedComparands, nestedContext);
}
}
}
}
public bool Handle(IEquivalencyValidationContext context, IEquivalencyValidator parent, IEquivalencyAssertionOptions config)
{
var expected = _dictionary[(string)context.Expectation];
return(((TEnum)context.Subject).Equals(expected));
}
protected override EquivalencyResult OnHandle(Comparands comparands, IEquivalencyValidationContext context, IEquivalencyValidator nestedValidator)
{
var subject = (XElement)comparands.Subject;
var expectation = (XElement)comparands.Expectation;
subject.Should().BeEquivalentTo(expectation, context.Reason.FormattedMessage, context.Reason.Arguments);
return(EquivalencyResult.AssertionCompleted);
}
/// <summary>
/// Applies a step as part of the task to compare two objects for structural equality.
/// </summary>
/// <value>
/// Should return <c>true</c> if the subject matches the expectation or if no additional assertions
/// have to be executed. Should return <c>false</c> otherwise.
/// </value>
/// <remarks>
/// May throw when preconditions are not met or if it detects mismatching data.
/// </remarks>
public virtual bool Handle(EquivalencyValidationContext context, IEquivalencyValidator structuralEqualityValidator,
IEquivalencyAssertionOptions config)
{
return ReferenceEquals(context.Subject, context.Expectation);
}
/// <summary>
/// Applies a step as part of the task to compare two objects for structural equality.
/// </summary>
/// <value>
/// Should return <c>true</c> if the subject matches the expectation or if no additional assertions
/// have to be executed. Should return <c>false</c> otherwise.
/// </value>
/// <remarks>
/// May throw when preconditions are not met or if it detects mismatching data.
/// </remarks>
public virtual bool Handle(EquivalencyValidationContext context, IEquivalencyValidator structuralEqualityValidator, IEquivalencyAssertionOptions config)
{
context.Subject.Should().Be(context.Expectation, context.Reason, context.ReasonArgs);
return true;
}
public EquivalencyResult Handle(Comparands comparands, IEquivalencyValidationContext context, IEquivalencyValidator nestedValidator)
{
return(EquivalencyResult.ContinueWithNext);
}
public bool Handle(IEquivalencyValidationContext context, IEquivalencyValidator parent, IEquivalencyAssertionOptions config)
{
return(assertionRule.AssertEquality(context));
}
public EquivalencyResult Handle(Comparands comparands, IEquivalencyValidationContext context, IEquivalencyValidator nestedValidator)
{
Type expectationType = comparands.GetExpectedType(context.Options);
if (expectationType is null || expectationType != typeof(string))
{
return(EquivalencyResult.ContinueWithNext);
}
if (!ValidateAgainstNulls(comparands, context.CurrentNode))
{
return(EquivalencyResult.AssertionCompleted);
}
bool subjectIsString = ValidateSubjectIsString(comparands, context.CurrentNode);
if (subjectIsString)
{
string subject = (string)comparands.Subject;
string expectation = (string)comparands.Expectation;
subject.Should()
.Be(expectation, context.Reason.FormattedMessage, context.Reason.Arguments);
}
return(EquivalencyResult.AssertionCompleted);
}
public EquivalencyResult Handle(Comparands comparands, IEquivalencyValidationContext context, IEquivalencyValidator nestedValidator)
{
if (!IsCollection(comparands.GetExpectedType(context.Options)))
{
return(EquivalencyResult.ContinueWithNext);
}
if (AssertSubjectIsCollection(comparands.Subject))
{
var validator = new EnumerableEquivalencyValidator(nestedValidator, context)
{
Recursive = context.CurrentNode.IsRoot || context.Options.IsRecursive,
OrderingRules = context.Options.OrderingRules
};
validator.Execute(ToArray(comparands.Subject), ToArray(comparands.Expectation));
}
return(EquivalencyResult.AssertionCompleted);
}
protected override EquivalencyResult OnHandle(Comparands comparands, IEquivalencyValidationContext context, IEquivalencyValidator nestedValidator)
{
if (comparands.Subject is not Constraint)
{
AssertionScope.Current
.FailWith("Expected {context:constraint} to be a value of type Constraint, but found {0}",
comparands.Subject.GetType());
}
else
{
var subject = (Constraint)comparands.Subject;
var expectation = (Constraint)comparands.Expectation;
var selectedMembers = GetMembersFromExpectation(comparands, context.CurrentNode, context.Options)
.ToDictionary(member => member.Name);
CompareCommonProperties(context, nestedValidator, context.Options, subject, expectation, selectedMembers);
bool matchingType = subject.GetType() == expectation.GetType();
AssertionScope.Current
.ForCondition(matchingType)
.FailWith("Expected {context:constraint} to be of type {0}, but found {1}", expectation.GetType(),
subject.GetType());
if (matchingType)
{
if ((subject is UniqueConstraint subjectUniqueConstraint) &&
(expectation is UniqueConstraint expectationUniqueConstraint))
{
CompareConstraints(nestedValidator, context, subjectUniqueConstraint, expectationUniqueConstraint,
selectedMembers);
}
else if ((subject is ForeignKeyConstraint subjectForeignKeyConstraint) &&
(expectation is ForeignKeyConstraint expectationForeignKeyConstraint))
{
CompareConstraints(nestedValidator, context, subjectForeignKeyConstraint, expectationForeignKeyConstraint,
selectedMembers);
}
public EquivalencyResult Handle(Comparands comparands, IEquivalencyValidationContext context, IEquivalencyValidator nestedValidator)
{
throw new TException();
}
public bool Handle(IEquivalencyValidationContext context, IEquivalencyValidator parent,
IEquivalencyAssertionOptions config)
{
Execute.Assertion.FailWith(GetType().FullName);
return true;
}
public EquivalencyResult Handle(Comparands comparands, IEquivalencyValidationContext context, IEquivalencyValidator nestedValidator)
{
comparands.Subject.Should().Be(comparands.Expectation, context.Reason.FormattedMessage, context.Reason.Arguments);
return(EquivalencyResult.AssertionCompleted);
}
public override bool Handle(IEquivalencyValidationContext context, IEquivalencyValidator parent, IEquivalencyAssertionOptions config)
{
doAction();
return(true);
}
public abstract bool Handle(IEquivalencyValidationContext context, IEquivalencyValidator parent, IEquivalencyAssertionOptions config);
public EnumerableEquivalencyValidator(IEquivalencyValidator parent, IEquivalencyValidationContext context)
{
this.parent = parent;
this.context = context;
Recursive = false;
}
public override bool Handle(IEquivalencyValidationContext context, IEquivalencyValidator parent, IEquivalencyAssertionOptions config)
{
throw new TException();
}
/// <summary>
/// Applies a step as part of the task to compare two objects for structural equality.
/// </summary>
/// <value>
/// Should return <c>true</c> if the subject matches the expectation or if no additional assertions
/// have to be executed. Should return <c>false</c> otherwise.
/// </value>
/// <remarks>
/// May throw when preconditions are not met or if it detects mismatching data.
/// </remarks>
public virtual bool Handle(EquivalencyValidationContext context, IEquivalencyValidator parent, IEquivalencyAssertionOptions config)
{
return(config.AssertionRules.Any(rule => rule.AssertEquality(context)));
}
/// <summary>
/// Applies a step as part of the task to compare two objects for structural equality.
/// </summary>
/// <value>
/// Should return <c>true</c> if the subject matches the expectation or if no additional assertions
/// have to be executed. Should return <c>false</c> otherwise.
/// </value>
/// <remarks>
/// May throw when preconditions are not met or if it detects mismatching data.
/// </remarks>
public virtual bool Handle(EquivalencyValidationContext context, IEquivalencyValidator parent, IEquivalencyAssertionOptions config)
{
return config.AssertionRules.Any(rule => rule.AssertEquality(context));
}
public override bool Handle(IEquivalencyValidationContext context, IEquivalencyValidator parent, IEquivalencyAssertionOptions config)
{
return(false);
}
public override bool Handle(IEquivalencyValidationContext context, IEquivalencyValidator parent, IEquivalencyAssertionOptions config)
{
context.Subject.Should().Be(context.Expectation, context.Because, context.BecauseArgs);
return(true);
}
public EquivalencyResult Handle(Comparands comparands, IEquivalencyValidationContext context, IEquivalencyValidator nestedValidator)
{
if (comparands.Expectation is DateTime time)
{
((DateTime)comparands.Subject).Should().BeCloseTo(time, 1.Minutes());
return(EquivalencyResult.AssertionCompleted);
}
return(EquivalencyResult.ContinueWithNext);
}
