/// <summary>
/// Determines whether properties are initialized or not.
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="propertiesContainer">The properties container.</param>
/// <param name="trace">The trace.</param>
/// <param name="options">The options.</param>
/// <returns></returns>
/// <exception cref="System.ArgumentNullException">
/// propertiesContainer - Cannot check if properties are initialized on null
/// instance
/// </exception>
// ReSharper disable once ExcessiveIndentation
public static bool PropertiesAreInitialized <T>(T propertiesContainer, CheckingTrace trace,
PropertiesComparisonOptions options)
{
if (propertiesContainer == null)
{
throw new ArgumentNullException(nameof(propertiesContainer),
"Cannot check if properties are initialized on null instance");
}
var type = propertiesContainer.GetType();
var properties = ObjectComparer.SelectProperties(type.GetProperties(), options.ExcludedProperties);
foreach (var propertyName in properties)
{
var property = type.GetProperty(propertyName);
if (options.IgnoreReadOnlyProperties && !property.CanWrite)
{
continue;
}
if (property.CanRead)
{
// Indexed Properties are managed
if (property.GetIndexParameters().Length == 0)
{
var value = property.GetValue(propertiesContainer, null);
trace.PushProperty(type, property.PropertyType, propertyName);
if (!IsFilled(value, trace, options))
{
return(false);
}
trace.Pop();
}
}
}
return(true);
}
private static bool ListsAreEqual(IList tested, IList expected, PropertiesComparisonOptions options,
CheckingTrace trace)
{
if (expected != null)
{
if (tested == null)
{
trace.SetFailure($"Tested list is null but expected list {expected.ShortDisplay()} is not null");
return(false);
}
if (tested.Count != expected.Count)
{
trace.SetFailure(
$"Tested list {tested.ShortDisplay()} has not same number of element that expected list {expected.ShortDisplay()}");
return(false);
}
for (var i = 0; i < expected.Count; ++i)
{
trace.PushIndex(expected.GetType(), i);
if (!ObjectsAreEqual(expected[i], tested[i], options, trace))
{
return(false);
}
trace.Pop();
}
return(true);
}
if (tested != null)
{
trace.SetFailure($"Tested list {tested.ShortDisplay()} is not null but expecting null list");
return(false);
}
return(true);
}
/// <summary>
/// Determines whether the specified to check is filled.
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="tested">To check.</param>
/// <param name="trace">The trace.</param>
/// <param name="options">The options.</param>
/// <returns>
/// <c>true</c> if the specified to check is filled; otherwise, <c>false</c>.
/// </returns>
// ReSharper disable once ExcessiveIndentation
private static bool IsFilled <T>(T tested, CheckingTrace trace, PropertiesComparisonOptions options)
{
if (tested != null)
{
var testedType = tested.GetType();
if (testedType.GetTypeInfo().IsValueType)
{
if (testedType == typeof(bool))
{
if ((bool)(object)tested == false)
{
trace.SetFailure("Tested is false but expected is true.");
return(false);
}
return(true);
}
if (testedType == typeof(TimeSpan))
{
decimal val = Convert <TimeSpan>(tested).Ticks;
if (val == 0)
{
trace.SetFailure("Tested TimeSpan is uninitialized.");
return(false);
}
return(true);
}
if (!IsInitialized(tested))
{
trace.SetFailure($"Tested {testedType} is uninitialized.");
return(false);
}
return(true);
}
if (testedType == typeof(string))
{
var value = Convert <string>(tested);
if (value.Length == 0)
{
trace.SetFailure($"Tested string is empty.");
return(false);
}
}
else
{
PropertiesAreInitialized(tested, trace, options);
}
}
else
{
trace.SetFailure($"Checked {typeof(T)} is null");
return(false);
}
return(true);
}
/// <summary>
/// Determines whether objects are equal.
/// </summary>
/// <param name="tested">The tested.</param>
/// <param name="expected">The expected.</param>
/// <param name="options">The options.</param>
/// <param name="trace">The trace.</param>
/// <returns></returns>
public static bool ObjectsAreEqual(object tested, object expected, PropertiesComparisonOptions options,
CheckingTrace trace)
{
if (expected != null)
{
var expectedType = expected.GetType();
if (tested == null)
{
trace.SetFailure($"Tested value is null but expected {expectedType}:{expected} is not null.");
return(false);
}
var testedType = tested.GetType();
if (testedType != expectedType)
{
trace.SetFailure($"Tested type {testedType} is not the expected {expectedType}.");
return(false);
}
if (expectedType.GetTypeInfo().IsValueType ||
expectedType == typeof(string) ||
expectedType == typeof(Type))
{
if (!expected.Equals(tested))
{
trace.SetFailure($"Tested value {tested} is not the expected {expected}.");
return(false);
}
}
else
{
if (typeof(IList).IsAssignableFrom(expectedType))
{
return(ListsAreEqual((IList)tested, (IList)expected, options, trace));
}
// Manage other types
return(PropertiesAreEqual(tested, expected, trace, options));
}
}
else
{
if (tested != null)
{
var type = tested.GetType();
trace.SetFailure($"Tested {type}:{tested} is not null but expecting null.");
return(false);
}
}
return(true);
}
private static bool PropertiesAreEqual(object expected, object tested, IEnumerable <string> properties,
PropertiesComparisonOptions comparisonOptions, CheckingTrace trace)
{
foreach (var propertyName in properties)
{
if (propertyName == "SyncRoot")
{
continue;
}
var expectedType = expected.GetType();
// get property infos
var expectedProperty = expectedType.GetProperty(propertyName);
var getter = expectedProperty.GetGetMethod();
if (getter == null || getter.IsStatic)
{
// no getter, or static
continue;
}
var testedType = tested.GetType();
var testedProperty = testedType.GetProperty(expectedProperty.Name);
if (testedProperty == null)
{
trace.SetFailure(
$"{testedType}:{tested} has not the expected property {expectedProperty.Name} of {expectedType}");
return(false);
}
// compare values
if (expectedProperty.CanRead && testedProperty.CanRead)
{
if (expectedProperty.GetIndexParameters().Length != 0)
{
continue;
}
var expectedValue = expectedProperty.GetValue(expected, null);
var testedValue = testedProperty.GetValue(tested, null);
trace.PushProperty(expectedType, expectedProperty.PropertyType, expectedProperty.Name);
if (!ObjectsAreEqual(expectedValue, testedValue, comparisonOptions, trace))
{
return(false);
}
trace.Pop();
}
}
return(true);
}
/// <summary>
/// Determines whether properties are equal.
/// </summary>
/// <param name="tested">The tested.</param>
/// <param name="expected">The expected.</param>
/// <param name="trace">The trace.</param>
/// <param name="comparisonOptions">The comparison options.</param>
/// <returns></returns>
public static bool PropertiesAreEqual(object tested, object expected, CheckingTrace trace,
PropertiesComparisonOptions comparisonOptions)
{
var expectedType = expected.GetType();
var testedType = tested.GetType();
var expectedLength = expectedType.GetProperties().Length;
var testedLength = testedType.GetProperties().Length;
if (expectedLength != testedLength &&
comparisonOptions.CheckForNumberOfProperties)
{
trace.SetFailure(
$"Tested {testedType}[{testedLength}] has not the same number of properties as expected {expectedType}[{expectedLength}]");
return(false);
}
trace.Push(expectedType);
var collection = SelectProperties(expectedType.GetProperties(), comparisonOptions.ExcludedProperties);
return(PropertiesAreEqual(expected, tested, collection, comparisonOptions, trace));
}
