public void compares_different_blocks()
{
var o1 = UnifiedBlock.Create(
new UnifiedExpression[] {
UnifiedBinaryExpression.Create(
UnifiedVariableIdentifier.Create("n"),
UnifiedBinaryOperator.Create(
"=",
UnifiedBinaryOperatorKind.Assign),
UnifiedInt32Literal.Create(1)),
UnifiedReturn.Create(
UnifiedInt32Literal.Create(2)),
});
var o2 = UnifiedBlock.Create(
new UnifiedExpression[] {
UnifiedBinaryExpression.Create(
UnifiedVariableIdentifier.Create("n"),
UnifiedBinaryOperator.Create(
"=",
UnifiedBinaryOperatorKind.Assign),
UnifiedInt32Literal.Create(2)),
UnifiedReturn.Create(
UnifiedInt32Literal.Create(2)),
});
Assert.That(
StructuralEqualityComparer.StructuralEquals(o1, o2),
Is.False);
}
public void compares_equal_ints()
{
var o1 = 0;
var o2 = 0;
Assert.That(
StructuralEqualityComparer.StructuralEquals(o1, o2),
Is.True);
}
public void compares_null_null()
{
object o1 = null;
object o2 = null;
Assert.That(
StructuralEqualityComparer.StructuralEquals(o1, o2),
Is.True);
}
public void compares_string_null()
{
var o1 = "abc";
object o2 = null;
Assert.That(
StructuralEqualityComparer.StructuralEquals(o1, o2),
Is.False);
}
public void compares_same_strings()
{
var o1 = "abc";
var o2 = o1;
Assert.That(
StructuralEqualityComparer.StructuralEquals(o1, o2),
Is.True);
}
/// <summary>
/// 获取指定的 <see cref="DictionaryEntry"/> 中的键值的哈希代码。
/// </summary>
/// <param name="obj">要为其获取哈希代码的 <see cref="IEnumerable"/> 对象。</param>
/// <param name="computed">已经计算过哈希代码的对象。</param>
/// <returns><paramref name="obj"/> 中的键值的哈希代码。</returns>
protected override int GetHashCodeCore(DictionaryEntry obj, ISet <object> computed)
{
var keyComparer = StructuralEqualityComparer.OfType(obj.Key?.GetType());
var valueComparer = StructuralEqualityComparer.OfType(obj.Value?.GetType());
return(this.CombineHashCode(
keyComparer.GetHashCode(obj, computed),
valueComparer.GetHashCode(obj, computed)));
}
public void compares_different_ints()
{
var o1 = 1;
var o2 = -1;
Assert.That(
StructuralEqualityComparer.StructuralEquals(o1, o2),
Is.False);
}
public void compares_different_strings()
{
var o1 = "abc";
var o2 = "abcd";
Assert.That(
StructuralEqualityComparer.StructuralEquals(o1, o2),
Is.False);
}
public void compares_different_types()
{
var o1 = "abc";
var o2 = new object();
Assert.That(
StructuralEqualityComparer.StructuralEquals(o1, o2),
Is.False);
}
public void compares_null_string()
{
object o1 = null;
var o2 = "abc";
Assert.That(
StructuralEqualityComparer.StructuralEquals(o1, o2),
Is.False);
}
public void Compare_Int32_parity(int value1, int value2, bool expected)
{
var comparer = new StructuralEqualityComparer<int>
{
{ x => x % 2, (x, y) => x == y }
};
bool result = comparer.Equals(value1, value2);
Assert.AreEqual(expected, result);
}
public void GetEmailBooking_WithMissingCostCentre_Should_DefaultFieldTo_UNKNOWN(string email, decimal total)
{
var sut = CreateSut();
var actual = sut.GetEmailBooking(email);
var expected = new EmailBooking("UNKNOWN", total, "", "", "", "");
var structuralEqualityComparer = new StructuralEqualityComparer();
Assert.That(actual, Is.EqualTo(expected).Using(structuralEqualityComparer));
}
public void GetDetailBooking(string email, string costCentre, string paymentMethod, string vendor, string description, string date, decimal total, decimal gst, decimal totalExcludingGst)
{
var sut = CreateSut();
var actual = sut.GetDetailBooking(email);
var expected = new DetailBooking(new EmailBooking(costCentre, total, paymentMethod, vendor, description, date), gst, totalExcludingGst);
var structuralEqualityComparer = new StructuralEqualityComparer();
Assert.That(actual, Is.EqualTo(expected).Using(structuralEqualityComparer));
}
public void Compare_Int32_parity(int value1, int value2, bool expected)
{
var comparer = new StructuralEqualityComparer <int>
{
{ x => x % 2, (x, y) => x == y }
};
bool result = comparer.Equals(value1, value2);
Assert.AreEqual(expected, result);
}
public void Compare_null_enumerations(Foo value1, Foo value2, bool expected)
{
var comparer = new StructuralEqualityComparer<Foo>
{
{ x => x.Children, new StructuralEqualityComparer<ChildFoo> { x => x.Tag } }
};
var result = comparer.Equals(value1, value2);
Assert.AreEqual(expected, result);
}
public void compares_same_expressions_containing_null()
{
var o2 = UnifiedBinaryExpression.Create(
UnifiedVariableIdentifier.Create("n"), null,
UnifiedInt32Literal.Create(1));
var o1 = o2;
Assert.That(
StructuralEqualityComparer.StructuralEquals(o1, o2),
Is.True);
}
public void compares_same_stringLists()
{
var o1 = new List <string> {
"1", "2"
};
var o2 = o1;
Assert.That(
StructuralEqualityComparer.StructuralEquals(o1, o2),
Is.True);
}
public void compares_same_intLists()
{
var o1 = new List <int> {
1, 2
};
var o2 = o1;
Assert.That(
StructuralEqualityComparer.StructuralEquals(o1, o2),
Is.True);
}
public void Compare_String_length_and_first_characters(string value1, string value2, bool expected)
{
var comparer = new StructuralEqualityComparer <string>
{
{ x => x.Length, (x, y) => x == y },
{ x => x.Substring(0, 3), (x, y) => String.Compare(x, y, true) == 0 }
};
bool result = comparer.Equals(value1, value2);
Assert.AreEqual(expected, result);
}
public void Strict_nested_comparer_on_child_enumeration(Foo value1, Foo value2, bool expected)
{
var comparer = new StructuralEqualityComparer <Foo>
{
{ x => x.Number },
{ x => x.Values, StructuralEqualityComparer <int> .Default }
};
bool result = comparer.Equals(value1, value2);
Assert.AreEqual(expected, result);
}
public void Nested_comparer_on_child_enumeration_ignoring_order(Foo value1, Foo value2, bool expected)
{
var comparer = new StructuralEqualityComparer <Foo>
{
{ x => x.Number },
{ x => x.Values, StructuralEqualityComparer <int> .Default, StructuralEqualityComparerOptions.IgnoreEnumerableOrder }
};
bool result = comparer.Equals(value1, value2);
Assert.AreEqual(expected, result);
}
/// <summary>
/// 获取指定的 <see cref="IEnumerable"/> 中的元素的哈希代码。
/// </summary>
/// <param name="obj">要获取哈希代码的 <see cref="IEnumerable"/> 对象。</param>
/// <param name="computed">已经计算过哈希代码的对象。</param>
/// <returns><paramref name="obj"/> 中的元素的哈希代码。</returns>
protected override int GetHashCodeCore(T obj, ISet <object> computed)
{
var hashCode = obj.GetType().GetHashCode();
foreach (var item in obj)
{
var comparer = StructuralEqualityComparer.OfType(item?.GetType());
var nextHashCode = comparer.GetHashCode(item !, computed);
hashCode = this.CombineHashCode(hashCode, nextHashCode);
}
return(hashCode);
}
public void compares_same_expressions()
{
var o2 = UnifiedBinaryExpression.Create(
UnifiedVariableIdentifier.Create("n"),
UnifiedBinaryOperator.Create(
"-", UnifiedBinaryOperatorKind.Subtract),
UnifiedInt32Literal.Create(1));
var o1 = o2;
Assert.That(
StructuralEqualityComparer.StructuralEquals(o1, o2),
Is.True);
}
public void Compare_null_enumerations_ignoring_order(Foo value1, Foo value2, bool expected)
{
var comparer = new StructuralEqualityComparer <Foo>
{
{ x => x.Children, new StructuralEqualityComparer <ChildFoo> {
x => x.Tag
}, StructuralEqualityComparerOptions.IgnoreEnumerableOrder }
};
var result = comparer.Equals(value1, value2);
Assert.AreEqual(expected, result);
}
public void compares_different_stringLists()
{
var o1 = new List <string> {
"1", "2"
};
var o2 = new List <string> {
"1", "3"
};
Assert.That(
StructuralEqualityComparer.StructuralEquals(o1, o2),
Is.False);
}
public void compares_different_intLists()
{
var o1 = new List <int> {
1, 2
};
var o2 = new List <int> {
1, 3
};
Assert.That(
StructuralEqualityComparer.StructuralEquals(o1, o2),
Is.False);
}
/// <summary>
/// 获取指定的数组中的元素的哈希代码。
/// </summary>
/// <param name="obj">要获取哈希代码的数组。</param>
/// <param name="computed">已经计算过哈希代码的对象。</param>
/// <returns><paramref name="obj"/> 中的元素的哈希代码。</returns>
protected override int GetHashCodeCore(TItem[] obj, ISet <object> computed)
{
var length = obj.Length;
var hashCode = obj.GetType().GetHashCode();
for (int index = 0; index < length; index++)
{
var comparer = StructuralEqualityComparer.OfType(obj[index]?.GetType());
var nextHashCode = comparer.GetHashCode(obj[index] !);
hashCode = this.CombineHashCode(hashCode, nextHashCode);
}
return(hashCode);
}
public void Compare_null_enumerations(Foo value1, Foo value2, bool expected)
{
var comparer = new StructuralEqualityComparer <Foo>
{
{ x => x.Children, new StructuralEqualityComparer <ChildFoo> {
x => x.Tag
} }
};
var result = comparer.Equals(value1, value2);
Assert.AreEqual(expected, result);
}
/// <summary>
/// 获取指定的数组中的元素的哈希代码。
/// </summary>
/// <param name="obj">要获取哈希代码的数组。</param>
/// <param name="computed">已经计算过哈希代码的对象。</param>
/// <returns><paramref name="obj"/> 中的元素的哈希代码。</returns>
protected override int GetHashCodeCore([DisallowNull] T obj, ISet <object> computed)
{
var array = (Array)(object)obj;
var hashCode = array.GetType().GetHashCode();
for (int index = 0; index < array.Length; index++)
{
var item = array.GetValue(array.OffsetToIndices(index));
var comparer = StructuralEqualityComparer.OfType(item?.GetType());
hashCode = this.CombineHashCode(
hashCode, comparer.GetHashCode(item !, computed));
}
return(hashCode);
}
public void compares_different_expressions_containing_null()
{
var o1 = UnifiedBinaryExpression.Create(
UnifiedVariableIdentifier.Create("n"), null,
UnifiedInt32Literal.Create(1));
var o2 = UnifiedBinaryExpression.Create(
UnifiedVariableIdentifier.Create("n"),
UnifiedBinaryOperator.Create(
null, UnifiedBinaryOperatorKind.Add),
UnifiedInt32Literal.Create(1));
Assert.That(
StructuralEqualityComparer.StructuralEquals(o1, o2),
Is.False);
}
public void Complex_comparers_with_nested_enumerations(Foo value1, Foo value2, bool expected)
{
var comparer = new StructuralEqualityComparer <Foo>
{
{ x => x.Number % 2 },
{ x => x.Text, (x, y) => String.Compare(x, y, true) == 0 },
{ x => x.Values, StructuralEqualityComparer <int> .Default, StructuralEqualityComparerOptions.IgnoreEnumerableOrder },
{ x => x.Children, new StructuralEqualityComparer <ChildFoo> {
{ x => x.Tag }
}, StructuralEqualityComparerOptions.IgnoreEnumerableOrder }
};
bool result = comparer.Equals(value1, value2);
Assert.AreEqual(expected, result);
}
public void Compare_null_references()
{
var comparer = new StructuralEqualityComparer <Foo>
{
{ x => x.Number },
};
var foo = new Foo()
{
Number = 123, Text = "Hello", Duration = TimeSpan.FromMinutes(600)
};
Assert.IsFalse(comparer.Equals(foo, null));
Assert.IsFalse(comparer.Equals(null, foo));
Assert.IsTrue(comparer.Equals(null, null));
}
public void Compare_null_references()
{
var comparer = new StructuralEqualityComparer<Foo>
{
{ x => x.Number },
};
var foo = new Foo() { Number = 123, Text = "Hello", Duration = TimeSpan.FromMinutes(600) };
Assert.IsFalse(comparer.Equals(foo, null));
Assert.IsFalse(comparer.Equals(null, foo));
Assert.IsTrue(comparer.Equals(null, null));
}
public void Compare_null_enumerations_ignoring_order(Foo value1, Foo value2, bool expected)
{
var comparer = new StructuralEqualityComparer<Foo>
{
{ x => x.Children, new StructuralEqualityComparer<ChildFoo> { x => x.Tag }, StructuralEqualityComparerOptions.IgnoreEnumerableOrder }
};
var result = comparer.Equals(value1, value2);
Assert.AreEqual(expected, result);
}
public void Strict_nested_comparer_on_child_enumeration(Foo value1, Foo value2, bool expected)
{
var comparer = new StructuralEqualityComparer<Foo>
{
{ x => x.Number },
{ x => x.Values, StructuralEqualityComparer<int>.Default }
};
bool result = comparer.Equals(value1, value2);
Assert.AreEqual(expected, result);
}
public void Nested_comparer_on_child_enumeration_ignoring_order(Foo value1, Foo value2, bool expected)
{
var comparer = new StructuralEqualityComparer<Foo>
{
{ x => x.Number },
{ x => x.Values, StructuralEqualityComparer<int>.Default, StructuralEqualityComparerOptions.IgnoreEnumerableOrder }
};
bool result = comparer.Equals(value1, value2);
Assert.AreEqual(expected, result);
}
public void Nested_comparers_on_complex_type(Foo value1, Foo value2, bool expected)
{
var comparer = new StructuralEqualityComparer<Foo>
{
{ x => x.Number },
{ (x, y) => String.Compare(x.Text, y.Text, true) == 0 },
{ x => x.Duration,
new StructuralEqualityComparer<TimeSpan>
{
{ x => x.TotalHours, (x, y) => Math.Abs(x - y) <= 1 }
}
}
};
bool result = comparer.Equals(value1, value2);
Assert.AreEqual(expected, result);
}
public void Complex_comparers_with_nested_enumerations(Foo value1, Foo value2, bool expected)
{
var comparer = new StructuralEqualityComparer<Foo>
{
{ x => x.Number % 2 },
{ x => x.Text, (x, y) => String.Compare(x, y, true) == 0 },
{ x => x.Values, StructuralEqualityComparer<int>.Default, StructuralEqualityComparerOptions.IgnoreEnumerableOrder },
{ x => x.Children, new StructuralEqualityComparer<ChildFoo> { { x => x.Tag } }, StructuralEqualityComparerOptions.IgnoreEnumerableOrder }
};
bool result = comparer.Equals(value1, value2);
Assert.AreEqual(expected, result);
}
public void Compare_String_length_and_first_characters(string value1, string value2, bool expected)
{
var comparer = new StructuralEqualityComparer<string>
{
{ x => x.Length, (x, y) => x == y },
{ x => x.Substring(0, 3), (x, y) => String.Compare(x, y, true) == 0 }
};
bool result = comparer.Equals(value1, value2);
Assert.AreEqual(expected, result);
}