/// <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)
{
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<PropertyInfo> selectedProperties = GetSelectedProperties(context, config).ToArray();
if (context.IsRoot && !selectedProperties.Any())
{
throw new InvalidOperationException(
"No properties were found for comparison. " +
"Please specify some properties to include in the comparison or choose a more meaningful assertion.");
}
if (expectationIsNotNull && subjectIsNotNull)
{
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(EquivalencyValidationContext 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 <PropertyInfo> selectedProperties = GetSelectedProperties(context, config).ToArray();
if (context.IsRoot && !selectedProperties.Any())
{
throw new InvalidOperationException(
"No properties were found for comparison. " +
"Please specify some properties to include in the comparison or choose a more meaningful assertion.");
}
if (expectationIsNotNull && subjectIsNotNull)
{
foreach (PropertyInfo propertyInfo in selectedProperties)
{
AssertPropertyEquality(context, parent, propertyInfo, config);
}
}
return(true);
}
public void AssertEqualityUsing(EquivalencyValidationContext context)
{
if (ContinueRecursion(context.PropertyPath))
{
AssertionScope scope = AssertionScope.Current;
scope.AddNonReportable("context", context.IsRoot ? "subject" : context.PropertyDescription);
scope.AddNonReportable("subject", context.Subject);
scope.AddNonReportable("expectation", context.Expectation);
var objectTracker = scope.Get<ObjectTracker>("objects");
if (!objectTracker.IsCyclicReference(new ObjectReference(context.Subject, context.PropertyPath)))
{
bool wasHandled = false;
foreach (var strategy in steps.Where(s => s.CanHandle(context, config)))
{
if (strategy.Handle(context, this, config))
{
wasHandled = true;
break;
}
}
if (!wasHandled)
{
Execute.Assertion.FailWith(
"No IEquivalencyStep was found to handle the context. " +
"This is likely a bug in Fluent Assertions.");
}
}
}
}
private static void AssertDictionaryEquivalence <TSubjectKey, TSubjectValue, TExpectedKey, TExpectedValue>(
EquivalencyValidationContext context,
IEquivalencyValidator parent,
IEquivalencyAssertionOptions config,
IDictionary <TSubjectKey, TSubjectValue> subject,
IDictionary <TExpectedKey, TExpectedValue> expectation)
where TExpectedKey : TSubjectKey
{
foreach (TExpectedKey key in expectation.Keys)
{
TSubjectValue subjectValue;
if (subject.TryGetValue(key, out subjectValue))
{
if (config.IsRecursive)
{
parent.AssertEqualityUsing(context.CreateForDictionaryItem(key, subject[key], expectation[key]));
}
else
{
subject[key].Should().Be(expectation[key], context.Because, context.BecauseArgs);
}
}
else
{
AssertionScope.Current.FailWith("Expected {context:subject} to contain key {0}.", key);
}
}
}
/// <summary>
/// Gets a value indicating whether this step can handle the current subject and/or expectation.
/// </summary>
public bool CanHandle(EquivalencyValidationContext context, IEquivalencyAssertionOptions config)
{
Type type = context.RuntimeType;
return (type != null) &&
(type != typeof (object)) &&
(type.Namespace == typeof (int).Namespace);
}
private static void AssertExpectationIsCollection(EquivalencyValidationContext context)
{
context.Verification
.ForCondition(IsCollection(context.Expectation))
.FailWith((context.IsRoot ? "Subject" : context.PropertyDescription) +
" is a collection and cannot be compared with a non-collection type.",
context.Subject, context.Subject.GetType().FullName);
}
/// <summary>
/// Gets a value indicating whether this step can handle the current subject and/or expectation.
/// </summary>
public bool CanHandle(EquivalencyValidationContext context, IEquivalencyAssertionOptions config)
{
Type type = context.RuntimeType;
return((type != null) &&
(type != typeof(object)) &&
(type.Namespace == typeof(int).Namespace));
}
/// <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)
{
if (context.PropertyInfo != null)
{
return(config.AssertionRules.Any(rule => rule.AssertEquality(context)));
}
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)
{
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);
}
}
private static void AssertCollectionsHaveEqualLength(EquivalencyValidationContext context, object[] subject, object[] expectation)
{
context.Verification
.ForCondition(subject.Length == expectation.Length)
.FailWith(
"Expected " + (context.IsRoot ? "subject" : context.PropertyDescription) +
" to be a collection with {0} item(s){reason}, but found {1}.",
expectation.Length, subject.Length);
}
private PropertyInfo FindMatchFor(PropertyInfo propertyInfo, EquivalencyValidationContext context, IEnumerable<IMatchingRule> matchingRules)
{
var query =
from rule in matchingRules
let match = rule.Match(propertyInfo, context.Expectation, context.PropertyDescription)
where match != null
select match;
return query.FirstOrDefault();
}
private PropertyInfo FindMatchFor(PropertyInfo propertyInfo, EquivalencyValidationContext context, IEnumerable <IMatchingRule> matchingRules)
{
var query =
from rule in matchingRules
let match = rule.Match(propertyInfo, context.Expectation, context.PropertyDescription)
where match != null
select match;
return(query.FirstOrDefault());
}
public void AssertEquality(EquivalencyValidationContext context)
{
try
{
AssertEqualityUsing(context);
}
catch (Exception exc)
{
Execute.Verification.FailWith(exc.Message + "\n" + context.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]));
}
}
}
internal IEnumerable <PropertyInfo> GetSelectedProperties(EquivalencyValidationContext context,
IEquivalencyAssertionOptions config)
{
IEnumerable <PropertyInfo> properties = Enumerable.Empty <PropertyInfo>();
foreach (ISelectionRule selectionRule in config.SelectionRules)
{
properties = selectionRule.SelectProperties(properties, context);
}
return(properties.Where(IsNotIndexer));
}
internal IEnumerable<PropertyInfo> GetSelectedProperties(EquivalencyValidationContext context,
IEquivalencyAssertionOptions config)
{
IEnumerable<PropertyInfo> properties = new List<PropertyInfo>();
foreach (ISelectionRule selectionRule in config.SelectionRules)
{
properties = selectionRule.SelectProperties(properties, context);
}
return properties;
}
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);
}
}
}
public void AssertEquality(EquivalencyValidationContext context)
{
using (var scope = new AssertionScope())
{
scope.AddReportable("configuration", config.ToString());
scope.AddNonReportable("objects", new ObjectTracker(config.CyclicReferenceHandling));
scope.BecauseOf(context.Because, context.BecauseArgs);
AssertEqualityUsing(context);
}
}
public void AssertEquality(EquivalencyValidationContext context)
{
using (var scope = new AssertionScope())
{
scope.AddReportable("configuration", config.ToString());
scope.AddNonReportable("objects", new ObjectTracker(config.CyclicReferenceHandling));
scope.BecauseOf(context.Reason, context.ReasonArgs);
AssertEqualityUsing(context);
}
}
internal IEnumerable <PropertyInfo> GetSelectedProperties(EquivalencyValidationContext context,
IEquivalencyAssertionOptions config)
{
IEnumerable <PropertyInfo> properties = new List <PropertyInfo>();
foreach (ISelectionRule selectionRule in config.SelectionRules)
{
properties = selectionRule.SelectProperties(properties, context);
}
return(properties);
}
/// <summary>
/// Asserts that the previously selected properties of <typeparamref name="T"/> have the same value as the equally named
/// properties of <paramref name="expectation"/>.
/// </summary>
/// <param name="expectation">The object to compare the current object with</param>
/// <remarks>
/// Property values are considered equal if, after converting them to the requested type, calling <see cref="EqualTo(object)"/>
/// returns <c>true</c>.
/// </remarks>
/// <param name="reason">
/// A formatted phrase as is supported by <see cref="string.Format(string,object[])"/> explaining why the assertion
/// is needed. If the phrase does not start with the word <i>because</i>, it is prepended automatically.
/// </param>
/// <param name="reasonArgs">
/// Zero or more objects to format using the placeholders in <see cref="reason"/>.
/// </param>
public void EqualTo(object expectation, string reason = "", params object[] reasonArgs)
{
var context = new EquivalencyValidationContext
{
Subject = subject,
Expectation = expectation,
CompileTimeType = typeof(T),
Reason = reason,
ReasonArgs = reasonArgs
};
new EquivalencyValidator(config).AssertEquality(context);
}
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);
}
}
}
public void AssertEquality(EquivalencyValidationContext context)
{
using var scope = new AssertionScope();
scope.AddReportable("configuration", config.ToString());
scope.BecauseOf(context.Because, context.BecauseArgs);
AssertEqualityUsing(context);
if (context.Tracer != null)
{
scope.AddReportable("trace", context.Tracer.ToString());
}
}
/// <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;
}
private static bool PreconditionsAreMet(EquivalencyValidationContext context, IDictionary expectation, IDictionary subject)
{
bool success = AssertionScope.Current
.ForCondition(expectation != null)
.FailWith("{context:subject} is a dictionary and cannot be compared with a non-dictionary type.");
if (success)
{
success = AssertionScope.Current
.ForCondition(subject.Keys.Count == expectation.Keys.Count)
.FailWith("Expected {context:subject} to be a dictionary with {0} item(s), but it only contains {1} item(s).",
expectation.Keys.Count, subject.Keys.Count);
}
return success;
}
private static bool PreconditionsAreMet(EquivalencyValidationContext context, IDictionary expectation, IDictionary subject)
{
bool success = AssertionScope.Current
.ForCondition(expectation != null)
.FailWith("{context:subject} is a dictionary and cannot be compared with a non-dictionary type.");
if (success)
{
success = AssertionScope.Current
.ForCondition(subject.Keys.Count == expectation.Keys.Count)
.FailWith("Expected {context:subject} to be a dictionary with {0} item(s), but it only contains {1} item(s).",
expectation.Keys.Count, subject.Keys.Count);
}
return(success);
}
/// <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;
}
public void AssertEquality(Comparands comparands, EquivalencyValidationContext context)
{
using var scope = new AssertionScope();
scope.AssumeSingleCaller();
scope.AddReportable("configuration", context.Options.ToString());
scope.BecauseOf(context.Reason);
RecursivelyAssertEquality(comparands, context);
if (context.TraceWriter is not null)
{
scope.AddReportable("trace", context.TraceWriter.ToString());
}
}
/// <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.");
}
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(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 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 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 virtual bool Handle(EquivalencyValidationContext context, IEquivalencyValidator structuralEqualityValidator, IEquivalencyAssertionOptions config)
{
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 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;
}
private static bool ValidateAgainstNulls(EquivalencyValidationContext context)
{
object expected = context.Expectation;
object subject = context.Subject;
string subjectDescription = GetSubjectDescription(context);
bool onlyOneNull = ((expected == null) && (subject != null)) ||
((expected != null) && (subject == null));
if (onlyOneNull)
{
AssertionScope.Current.FailWith(
"Expected " + subjectDescription +
" to be {0}{reason}, but found {1}.", expected, subject);
return(false);
}
return(true);
}
public void AssertEqualityUsing(EquivalencyValidationContext context)
{
AssertionScope scope = AssertionScope.Current;
scope.AddNonReportable("context", context.IsRoot ? "subject" : context.PropertyDescription);
scope.AddNonReportable("subject", context.Subject);
scope.AddNonReportable("expectation", context.Expectation);
var objectTracker = scope.Get<ObjectTracker>("objects");
if (!objectTracker.IsCyclicReference(new ObjectReference(context.Subject, context.PropertyPath)))
{
foreach (IEquivalencyStep strategy in steps.Where(s => s.CanHandle(context, config)))
{
if (strategy.Handle(context, this, config))
{
break;
}
}
}
}
/// <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;
}
private static bool ValidateAgainstType <T>(EquivalencyValidationContext context)
{
bool expectationisNull = ReferenceEquals(context.Expectation, null);
if (expectationisNull)
{
// Do not know the declared type of the expectation.
return(true);
}
return
(AssertionScope.Current
.ForCondition(context.Expectation.GetType()
.IsSameOrInherits(typeof(T)))
.FailWith(
"Expected " + GetSubjectDescription(context) +
" to be {0}, but found {1}",
context.Expectation.GetType(),
context.RuntimeType));
}
public void AssertEqualityUsing(EquivalencyValidationContext context)
{
ExecuteUsingSubjectName(context.PropertyDescription, () =>
{
if (!context.ContainsCyclicReference)
{
foreach (IEquivalencyStep strategy in steps.Where(s => s.CanHandle(context)))
{
if (strategy.Handle(context, this))
{
break;
}
}
}
else
{
context.HandleCyclicReference();
}
});
}
public void AssertEqualityUsing(EquivalencyValidationContext context)
{
AssertionScope scope = AssertionScope.Current;
scope.AddNonReportable("context", context.IsRoot ? "subject" : context.PropertyDescription);
scope.AddNonReportable("subject", context.Subject);
scope.AddNonReportable("expectation", context.Expectation);
var objectTracker = scope.Get <ObjectTracker>("objects");
if (!objectTracker.IsCyclicReference(new ObjectReference(context.Subject, context.PropertyPath)))
{
foreach (IEquivalencyStep strategy in steps.Where(s => s.CanHandle(context, config)))
{
if (strategy.Handle(context, this, config))
{
break;
}
}
}
}
/// <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)
{
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 virtual bool Handle(EquivalencyValidationContext 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 parent, IEquivalencyAssertionOptions config)
{
if (!ValidateAgainstNulls(context))
{
return(true);
}
bool expectationIsString = ValidateAgainstType <string>(context);
if (expectationIsString)
{
string subject = (string)context.Subject;
string expectation = (context.Expectation == null)
? null
: (string)context.Expectation;
subject.Should()
.Be(expectation, context.Reason, context.ReasonArgs);
}
return(true);
}
/// <summary>
/// Gets a value indicating whether this step can handle the current subject and/or expectation.
/// </summary>
public bool CanHandle(EquivalencyValidationContext context, IEquivalencyAssertionOptions config)
{
return (context.PropertyInfo != null);
}
/// <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>
/// Gets a value indicating whether this step can handle the current subject and/or expectation.
/// </summary>
public bool CanHandle(EquivalencyValidationContext context, IEquivalencyAssertionOptions config)
{
return(context.Subject is IDictionary);
}
internal static Type GetSubjectType(EquivalencyValidationContext context, IEquivalencyAssertionOptions config)
{
bool useRuntimeType = ShouldUseRuntimeType(config);
return useRuntimeType ? context.RuntimeType : context.CompileTimeType;
}
/// <summary>
/// Gets a value indicating whether this step can handle the current subject and/or expectation.
/// </summary>
public bool CanHandle(EquivalencyValidationContext context, IEquivalencyAssertionOptions config)
{
return(context.IsRoot || config.IsRecursive);
}
/// <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, IEquivalencyAssertionOptions config)
{
context.Subject.Should().Be(context.Expectation, context.Reason, context.ReasonArgs);
return(true);
}
/// <summary>
/// Gets a value indicating whether this step can handle the current subject and/or expectation.
/// </summary>
public bool CanHandle(EquivalencyValidationContext context)
{
return IsCollection(context.Subject);
}
/// <summary>
/// Gets a value indicating whether this step can handle the current subject and/or expectation.
/// </summary>
public bool CanHandle(EquivalencyValidationContext context, IEquivalencyAssertionOptions config)
{
return(true);
}
public EnumerableEquivalencyValidator(IEquivalencyValidator parent, EquivalencyValidationContext context)
{
this.parent = parent;
this.context = context;
Recursive = false;
}
public EnumerableEquivalencyValidator(IEquivalencyValidator parent, EquivalencyValidationContext context)
{
this.parent = parent;
this.context = context;
Recursive = false;
}
/// <summary>
/// Gets a value indicating whether this step can handle the verificationScope subject and/or expectation.
/// </summary>
public bool CanHandle(EquivalencyValidationContext context, IEquivalencyAssertionOptions config)
{
Type subjectType = GetSubjectType(context, config);
return IsCollection(subjectType);
}
/// <summary>
/// Gets a value indicating whether this step can handle the current subject and/or expectation.
/// </summary>
public bool CanHandle(EquivalencyValidationContext context, IEquivalencyAssertionOptions config)
{
return((context.Subject != null) &&
context.Subject.GetType().IsComplexType() && (context.IsRoot || config.IsRecursive));
}
/// <summary>
/// Gets a value indicating whether this step can handle the verificationScope subject and/or expectation.
/// </summary>
public bool CanHandle(EquivalencyValidationContext context, IEquivalencyAssertionOptions config)
{
return(IsCollection(context.Subject));
}
/// <summary>
/// Gets a value indicating whether this step can handle the current subject and/or expectation.
/// </summary>
public bool CanHandle(EquivalencyValidationContext context, IEquivalencyAssertionOptions config)
{
return (context.Subject != null) &&
context.Subject.GetType().IsComplexType() && (context.IsRoot || config.IsRecursive);
}
