/// <summary>
/// Creates a new instance of the <see href="AssertActualExpectedException"/> class.
/// </summary>
/// <param name="expected">The expected value</param>
/// <param name="actual">The actual value</param>
/// <param name="userMessage">The user message to be shown</param>
/// <param name="skipPositionCheck">Set to true to skip the check for difference position</param>
public AssertActualExpectedException(object expected,
object actual,
string userMessage,
bool skipPositionCheck)
: base(userMessage)
{
if (!skipPositionCheck)
{
IEnumerable enumerableActual = actual as IEnumerable;
IEnumerable enumerableExpected = expected as IEnumerable;
if (enumerableActual != null && enumerableExpected != null)
{
var comparer = new EnumerableEqualityComparer();
comparer.Equals(enumerableActual, enumerableExpected);
differencePosition = "Position: First difference is at position " + comparer.Position + Environment.NewLine;
}
}
this.actual = actual == null ? null : ConvertToString(actual);
this.expected = expected == null ? null : ConvertToString(expected);
if (actual != null &&
expected != null &&
actual.ToString() == expected.ToString() &&
actual.GetType() != expected.GetType())
{
this.actual += String.Format(" ({0})", actual.GetType().FullName);
this.expected += String.Format(" ({0})", expected.GetType().FullName);
}
}
/// <summary>
/// Creates a new instance of the <see href="AssertActualExpectedException"/> class.
/// </summary>
/// <param name="expected">The expected value</param>
/// <param name="actual">The actual value</param>
/// <param name="userMessage">The user message to be shown</param>
/// <param name="skipPositionCheck">Set to true to skip the check for difference position</param>
public AssertActualExpectedException(object expected,
object actual,
string userMessage,
bool skipPositionCheck)
: base(userMessage)
{
if (!skipPositionCheck)
{
IEnumerable enumerableActual = actual as IEnumerable;
IEnumerable enumerableExpected = expected as IEnumerable;
if (enumerableActual != null && enumerableExpected != null)
{
var comparer = new EnumerableEqualityComparer();
comparer.Equals(enumerableActual, enumerableExpected);
differencePosition = "Position: First difference is at position " + comparer.Position + Environment.NewLine;
}
}
this.actual = actual == null ? null : ConvertToString(actual);
this.expected = expected == null ? null : ConvertToString(expected);
if (actual != null &&
expected != null &&
actual.ToString() == expected.ToString() &&
actual.GetType() != expected.GetType())
{
this.actual += String.Format(" ({0})", actual.GetType().FullName);
this.expected += String.Format(" ({0})", expected.GetType().FullName);
}
}
public static void Equals___Should_return_true___When_enumerableEqualityComparerStrategy_is_SequenceEqual_and_item1_and_item2_are_null()
{
// Arrange
var systemUnderTest = new EnumerableEqualityComparer <string>(EnumerableEqualityComparerStrategy.SequenceEqual);
// Act
var actual = systemUnderTest.Equals(null, null);
// Assert
actual.Should().BeTrue();
}
public static void Equals___Should_return_true___When_enumerableEqualityComparerStrategy_is_SequenceEqual_and_item1_and_item2_are_the_same_reference()
{
// Arrange
var systemUnderTest = new EnumerableEqualityComparer <string>(EnumerableEqualityComparerStrategy.SequenceEqual);
var item = new[] { "abc", null, "def" };
// Act
var actual = systemUnderTest.Equals(item, item);
// Assert
actual.Should().BeTrue();
}
public static void Equals___Should_return_false___When_enumerableEqualityComparerStrategy_is_SequenceEqual_and_item1_is_not_null_and_item2_is_null()
{
// Arrange
var systemUnderTest = new EnumerableEqualityComparer <string>(EnumerableEqualityComparerStrategy.SequenceEqual);
var item1 = Some.ReadOnlyDummies <string>();
// Act
var actual = systemUnderTest.Equals(item1, null);
// Assert
actual.Should().BeFalse();
}
public static void Equals___Should_return_true___When_enumerableEqualityComparerStrategy_is_UnorderedEqual_and_item1_and_item2_are_empty()
{
// Arrange
var systemUnderTest = new EnumerableEqualityComparer <string>(EnumerableEqualityComparerStrategy.UnorderedEqual);
var item1 = new string[0];
var item2 = new string[0];
// Act
var actual = systemUnderTest.Equals(item1, item2);
// Assert
actual.Should().BeTrue();
}
public static void Equals___Should_return_false___When_enumerableEqualityComparerStrategy_is_UnorderedEqual_and_item1_and_item2_are_not_null_and_not_equal()
{
// Arrange
var systemUnderTest = new EnumerableEqualityComparer <string>(EnumerableEqualityComparerStrategy.UnorderedEqual);
var item1 = new[] { "abc", "def", "ghi" };
var item2 = new[] { "abc", "def", "ghi", "abc" };
// Act
var actual = systemUnderTest.Equals(item1, item2);
// Assert
actual.Should().BeFalse();
}
public static bool CollectionEquals <T>(this ICollection <T> left, ICollection <T> right, IEqualityComparer <T> equalityComparer = null)
{
equalityComparer ??= EqualityComparer <T> .Default;
if (left is null)
{
return(right is null);
}
else if (right is null)
{
return(false);
}
return(left.Count == right.Count && EnumerableEqualityComparer <T> .CreateInstance(equalityComparer).Equals(left, right));
}
public static bool ArrayEquals <T>(this T[] left, T[] right, IEqualityComparer <T> equalityComparer = null)
{
equalityComparer ??= EqualityComparer <T> .Default;
if (left is null)
{
return(right is null);
}
else if (right is null)
{
return(false);
}
return(left.LongLength == right.LongLength && EnumerableEqualityComparer <T> .CreateInstance(equalityComparer).Equals(left, right));
}
public static void Equals___Should_return_false___When_enumerableEqualityComparerStrategy_is_SequenceEqual_and_item1_and_item2_are_not_null_and_not_equal()
{
// Arrange
var systemUnderTest = new EnumerableEqualityComparer <string>(EnumerableEqualityComparerStrategy.SequenceEqual);
var item1a = Some.ReadOnlyDummies <string>(3);
var item1b = Some.ReadOnlyDummies <string>(3);
var item2a = new[] { "abc", null, "def" };
var item2b = new[] { "def", null, "abc" };
// Act
var actual1 = systemUnderTest.Equals(item1a, item1b);
var actual2 = systemUnderTest.Equals(item2a, item2b);
// Assert
actual1.Should().BeFalse();
actual2.Should().BeFalse();
}
public static void Equals___Should_return_true___When_enumerableEqualityComparerStrategy_is_UnorderedEqual_and_item1_and_item2_are_not_null_and_equal()
{
// Arrange
var systemUnderTest = new EnumerableEqualityComparer <string>(EnumerableEqualityComparerStrategy.UnorderedEqual);
var item1a = new[] { "abc", null, "def" };
var item1b = new[] { "def", "abc", null };
var item2a = new[] { "abc", null, "def", "abc", "ghi", null };
var item2b = new[] { null, "ghi", null, "abc", "def", "abc" };
// Act
var actual1 = systemUnderTest.Equals(item1a, item1b);
var actual2 = systemUnderTest.Equals(item2a, item2b);
// Assert
actual1.Should().BeTrue();
actual2.Should().BeTrue();
}
public static int EnumerableGetHashCode <T>(this IEnumerable <T> enumerable, IEqualityComparer <T> equalityComparer) => EnumerableEqualityComparer <T> .CreateInstance(equalityComparer).GetHashCode(enumerable);
public static bool EnumerableEquals <T>(this IEnumerable <T> left, IEnumerable <T> right, IEqualityComparer <T> equalityComparer) => EnumerableEqualityComparer <T> .CreateInstance(equalityComparer).Equals(left, right);
protected AssertActualExpectedException(object expected,
object actual,
string userMessage,
bool skipPositionCheck = false)
: base(userMessage)
{
if (!skipPositionCheck)
{
var enumerableActual = actual as IEnumerable;
var enumerableExpected = expected as IEnumerable;
if (enumerableActual != null && enumerableExpected != null)
{
var comparer = new EnumerableEqualityComparer();
comparer.Equals(enumerableActual, enumerableExpected);
differencePosition = "Position: First difference is at position " + comparer.Position + Environment.NewLine;
}
}
Actual = actual == null ? null : ConvertToString(actual);
Expected = expected == null ? null : ConvertToString(expected);
if (actual == null || expected == null || actual.ToString() != expected.ToString() ||
actual.GetType() == expected.GetType()) return;
Actual += $" ({actual.GetType().FullName})";
Expected += $" ({expected.GetType().FullName})";
}
public void SetupListMultiplicator()
{
this.SetDependency <IListMultiplicator>(new ListMultiplicator());
this.Comparer = new EnumerableEqualityComparer <int>();
}
