public SelectedMemberInfo Match(SelectedMemberInfo subjectMember, object expectation, string memberPath, IEquivalencyAssertionOptions config)
{
SelectedMemberInfo compareeSelectedMemberInfoInfo = null;
if (config.IncludeProperties)
{
compareeSelectedMemberInfoInfo = SelectedMemberInfo.Create(expectation.GetType()
.FindProperty(subjectMember.Name, subjectMember.MemberType));
}
if ((compareeSelectedMemberInfoInfo == null) && config.IncludeFields)
{
compareeSelectedMemberInfoInfo = SelectedMemberInfo.Create(expectation.GetType()
.FindField(subjectMember.Name, subjectMember.MemberType));
}
if ((compareeSelectedMemberInfoInfo == null) && ExpectationImplementsMemberExplicitly(expectation, subjectMember))
{
compareeSelectedMemberInfoInfo = subjectMember;
}
if (compareeSelectedMemberInfoInfo == null)
{
string path = (memberPath.Length > 0) ? memberPath + "." : "member ";
Execute.Assertion.FailWith(
"Subject has " + path + subjectMember.Name + " that the other object does not have.");
}
return compareeSelectedMemberInfoInfo;
}
private static IEquivalencyValidationContext CreateNested(
this IEquivalencyValidationContext equivalencyValidationContext,
SelectedMemberInfo subjectProperty,
object subject,
object expectation,
string memberType,
string memberDescription,
string separator,
Type compileTimeType)
{
string propertyPath = equivalencyValidationContext.IsRoot
? memberType
: equivalencyValidationContext.SelectedMemberDescription + separator;
return(new EquivalencyValidationContext
{
SelectedMemberInfo = subjectProperty,
Subject = subject,
Expectation = expectation,
SelectedMemberPath =
equivalencyValidationContext.SelectedMemberPath.Combine(
memberDescription,
separator),
SelectedMemberDescription = propertyPath + memberDescription,
Reason = equivalencyValidationContext.Reason,
ReasonArgs = equivalencyValidationContext.ReasonArgs,
CompileTimeType = compileTimeType,
});
}
public SelectedMemberInfo Match(SelectedMemberInfo subjectMember, object expectation, string memberPath, IEquivalencyAssertionOptions config)
{
SelectedMemberInfo compareeSelectedMemberInfoInfo = null;
if (config.IncludeProperties)
{
compareeSelectedMemberInfoInfo = SelectedMemberInfo.Create(expectation.GetType()
.FindProperty(subjectMember.Name, subjectMember.MemberType));
}
if ((compareeSelectedMemberInfoInfo == null) && config.IncludeFields)
{
compareeSelectedMemberInfoInfo = SelectedMemberInfo.Create(expectation.GetType()
.FindField(subjectMember.Name, subjectMember.MemberType));
}
if ((compareeSelectedMemberInfoInfo == null) && ExpectationImplementsMemberExplicitly(expectation, subjectMember))
{
compareeSelectedMemberInfoInfo = subjectMember;
}
if (compareeSelectedMemberInfoInfo == null)
{
string path = (memberPath.Length > 0) ? memberPath + "." : "member ";
Execute.Assertion.FailWith(
"Subject has " + path + subjectMember.Name + " that the other object does not have.");
}
return(compareeSelectedMemberInfoInfo);
}
public NestedSelectionContext(ISubjectInfo context, SelectedMemberInfo selectedMemberInfo)
{
SelectedMemberPath = context.SelectedMemberPath.Combine(selectedMemberInfo.Name);
SelectedMemberDescription = context.SelectedMemberDescription.Combine(selectedMemberInfo.Name);
CompileTimeType = selectedMemberInfo.MemberType;
RuntimeType = selectedMemberInfo.MemberType;
SelectedMemberInfo = selectedMemberInfo;
}
public NestedSelectionContext(ISubjectInfo context, SelectedMemberInfo selectedMemberInfo)
{
SelectedMemberPath = context.SelectedMemberPath.Combine(selectedMemberInfo.Name);
SelectedMemberDescription = context.SelectedMemberDescription.Combine(selectedMemberInfo.Name);
CompileTimeType = selectedMemberInfo.MemberType;
RuntimeType = selectedMemberInfo.MemberType;
SelectedMemberInfo = selectedMemberInfo;
}
public AssertionContext(SelectedMemberInfo subjectProperty, TSubject subject, TSubject expectation, string because,
object[] reasonArgs)
{
SubjectProperty = subjectProperty;
Subject = subject;
Expectation = expectation;
Reason = because;
ReasonArgs = reasonArgs;
}
private static SelectedMemberInfo FindMatchFor(SelectedMemberInfo selectedMemberInfo, IEquivalencyValidationContext context, IEquivalencyAssertionOptions config)
{
var query =
from rule in config.MatchingRules
let match = rule.Match(selectedMemberInfo, context.Expectation, context.SelectedMemberDescription, config)
where match != null
select match;
return query.FirstOrDefault();
}
private static SelectedMemberInfo FindMatchFor(SelectedMemberInfo selectedMemberInfo, IEquivalencyValidationContext context, IEquivalencyAssertionOptions config)
{
var query =
from rule in config.MatchingRules
let match = rule.Match(selectedMemberInfo, context.Expectation, context.SelectedMemberDescription, config)
where match != null
select match;
return(query.FirstOrDefault());
}
/// <summary>
/// Includes the specified member in the equality check.
/// </summary>
/// <remarks>
/// This overrides the default behavior of including all declared members.
/// </remarks>
public EquivalencyAssertionOptions <TSubject> Including(Expression <Func <TSubject, object> > expression)
{
RemoveStandardSelectionRules();
SelectedMemberInfo selectedMemberInfo = expression.GetSelectedMemberInfo();
AddSelectionRule(
new IncludeMemberByPathSelectionRule(selectedMemberInfo));
return(this);
}
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);
}
}
}
public SelectedMemberInfo Match(SelectedMemberInfo subjectMember, object expectation, string memberPath,
IEquivalencyAssertionOptions config)
{
var propertySelectedMemberInfo = subjectMember as PropertySelectedMemberInfo;
if (propertySelectedMemberInfo != null)
{
return
SelectedMemberInfo.Create(obsoleteMatchingRule.Match(propertySelectedMemberInfo.PropertyInfo,
expectation, memberPath));
}
return null;
}
public SelectedMemberInfo Match(SelectedMemberInfo subjectMember, object expectation, string memberPath,
IEquivalencyAssertionOptions config)
{
var propertySelectedMemberInfo = subjectMember as PropertySelectedMemberInfo;
if (propertySelectedMemberInfo != null)
{
return
(SelectedMemberInfo.Create(obsoleteMatchingRule.Match(propertySelectedMemberInfo.PropertyInfo,
expectation, memberPath)));
}
return(null);
}
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);
}
}
}
internal static IEquivalencyValidationContext CreateForNestedMember(
this IEquivalencyValidationContext equivalencyValidationContext,
SelectedMemberInfo nestedMember,
SelectedMemberInfo matchingProperty)
{
object subject = nestedMember.GetValue(equivalencyValidationContext.Subject, null);
object expectation = matchingProperty.GetValue(equivalencyValidationContext.Expectation, null);
return(CreateNested(
equivalencyValidationContext,
nestedMember,
subject,
expectation,
"member ",
nestedMember.Name,
".",
nestedMember.MemberType));
}
internal static IEquivalencyValidationContext CreateForNestedMember(this IEquivalencyValidationContext context,
SelectedMemberInfo nestedMember, SelectedMemberInfo matchingProperty)
{
string memberDescription = nestedMember.Name;
string propertyPath = (context.SelectedMemberDescription.Length == 0) ? "member " : context.SelectedMemberDescription + ".";
return(new EquivalencyValidationContext
{
SelectedMemberInfo = nestedMember,
Subject = nestedMember.GetValue(context.Subject, null),
Expectation = matchingProperty.GetValue(context.Expectation, null),
SelectedMemberPath = context.SelectedMemberPath.Combine(memberDescription, "."),
SelectedMemberDescription = propertyPath + memberDescription,
Because = context.Because,
BecauseArgs = context.BecauseArgs,
CompileTimeType = nestedMember.MemberType,
RootIsCollection = context.RootIsCollection
});
}
public IncludeMemberByPathSelectionRule(SelectedMemberInfo selectedMemberInfo)
{
this.selectedMemberInfo = selectedMemberInfo;
}
private static bool ExpectationImplementsMemberExplicitly(object expectation, SelectedMemberInfo subjectMember)
{
return subjectMember.DeclaringType.IsInstanceOfType(expectation);
}
public IncludeMemberByPathSelectionRule(SelectedMemberInfo selectedMemberInfo)
{
this.selectedMemberInfo = selectedMemberInfo;
}
public SelectedMemberInfo Match(SelectedMemberInfo subjectMember, object expectation, string memberPath, IEquivalencyAssertionOptions config)
{
return(matchingRule.Match(subjectMember, expectation, memberPath, config));
}
public SelectedMemberInfo Match(SelectedMemberInfo subjectMember, object expectation, string memberPath, IEquivalencyAssertionOptions config)
{
return expectation.GetType().FindMember(subjectMember.Name, subjectMember.MemberType);
}
private static bool ExpectationImplementsMemberExplicitly(object expectation, SelectedMemberInfo subjectMember)
{
return(subjectMember.DeclaringType.IsInstanceOfType(expectation));
}
private static string GetPropertyValueTextFor(object value, SelectedMemberInfo selectedMemberInfo, int nextMemberNestingLevel,
IList<object> processedObjects)
{
object propertyValue;
try
{
propertyValue = selectedMemberInfo.GetValue(value, null);
}
catch (Exception ex)
{
propertyValue = string.Format("[Member '{0}' threw an exception: '{1}']", selectedMemberInfo.Name, ex.Message);
}
return string.Format("{0}{1} = {2}",
CreateWhitespaceForLevel(nextMemberNestingLevel),
selectedMemberInfo.Name,
Formatter.ToString(propertyValue, false, processedObjects, nextMemberNestingLevel));
}
public SelectedMemberInfo Match(SelectedMemberInfo subjectMember, object expectation, string memberPath, IEquivalencyAssertionOptions config)
{
return(expectation.GetType().FindMember(subjectMember.Name, subjectMember.MemberType));
}