public void should_return_index_of_repeated_object_array_with_default_equality_comparer()
{
var testCase1 = new test_class_default_comparer()
{
A = "a", B = 0
};
var testCase2 = new test_class_default_comparer()
{
A = "b", B = 1
};
var testCase3 = new test_class_default_comparer()
{
A = "c", B = 2
};
// looks like 4 and 5 are equal but not according to the default comparer
var testCase4 = new test_class_default_comparer()
{
A = "d", B = 3
};
var testCase5 = new test_class_default_comparer()
{
A = "d", B = 3
};
var testCases = new[] { testCase1, testCase2, testCase3, testCase4, testCase5, testCase5 };
var indexesOfRepeats = testCases.IndexesOfRepeats().ToList();
indexesOfRepeats.Should().HaveCount(1);
indexesOfRepeats.Should().BeEquivalentTo(new[] { 4 });
}
public void should_return_index_of_repeated_object_array_with_custom_equality_comparer_only_lhs_to_rhs_not_other_way_around()
{
var testCase1 = new test_class_default_comparer()
{
A = "a", B = 0
};
var testCase2 = new test_class_default_comparer()
{
A = "b", B = 1
};
var testCase3 = new test_class_default_comparer()
{
A = "c", B = 2
};
// looks like 4 and 5 are equal but not according to the default comparer, only according to a custom comparer
var testCase4 = new test_class_default_comparer()
{
A = "d", B = 3
};
var testCase5 = new test_class_default_comparer()
{
A = "e", B = 3
};
var testCase6 = new test_class_default_comparer()
{
A = "z", B = 2
};
var testCase7 = new test_class_default_comparer()
{
A = "e", B = 3
};
var testCase8 = new test_class_default_comparer()
{
A = "d", B = 3
};
var testCases = new[] { testCase1, testCase2, testCase3, testCase4, testCase5, testCase6, testCase7, testCase8 };
var indexesOfRepeats = testCases.IndexesOfRepeats(equalityComparer: (lhs, rhs) => lhs.A == "d" && rhs.A == "e").ToList();
indexesOfRepeats.Should().HaveCount(1);
indexesOfRepeats.Should().BeEquivalentTo(new[] { 3 });
}
