public void CompareTestClassBySecondProp()
{
var o1 = new ComparersTestClass {
A = "test1", B = 1
};
var oe1 = new ComparersTestClass {
A = "test1", B = 1
};
var o2 = new ComparersTestClass {
A = "test1", B = 2
};
var comparer = EqualityComparerEx.Key((ComparersTestClass a) => a.B);
Assert.True(comparer.Equals(o1, o1));
Assert.True(comparer.Equals(o1, oe1));
Assert.False(comparer.Equals(o1, o2));
Assert.Equal(comparer.GetHashCode(o1), comparer.GetHashCode(o1));
Assert.Equal(comparer.GetHashCode(o1), comparer.GetHashCode(oe1));
Assert.NotEqual(comparer.GetHashCode(o1), comparer.GetHashCode(o2));
}
public void CompareTestClassByOneProp()
{
var o1 = new ComparersTestClass {
A = "test1", B = 1
};
var oe1 = new ComparersTestClass {
A = "test1", B = 2
};
var o2 = new ComparersTestClass {
A = "test2", B = 2
};
var comparer = EqualityComparerEx.Func <ComparersTestClass>((a, b) => a.A == b.A, a => a.A.GetHashCode());
Assert.True(comparer.Equals(o1, o1));
Assert.True(comparer.Equals(o1, oe1));
Assert.False(comparer.Equals(o1, o2));
// ReSharper disable once EqualExpressionComparison
Assert.True(comparer.GetHashCode(o1) == comparer.GetHashCode(o1));
Assert.True(comparer.GetHashCode(o1) == comparer.GetHashCode(oe1));
Assert.False(comparer.GetHashCode(o1) == comparer.GetHashCode(o2));
}