public void Unique_given_1_1_1_2_3_3_returns_1_2_3()
{
int[] input = { 1, 1, 2, 3, 3 };
var output = CollectionUtilities.Unique(input);
Assert.Equal(new[] { 1, 2, 3 }, output);
}
public void Unique_given_1_2_3_3_3_3_4_returns_1_2_3_4()
{
var unique = CollectionUtilities.Unique(new[] { 1, 2, 3, 3, 3, 3, 4 });
var expected = new HashSet <int> {
2, 3, 4, 1
};
Assert.True(expected.SetEquals(unique));
}
public void Unique_given_1_2_2_3_3_4_5_returns_1_2_3_4_5()
{
int[] numbers = { 1, 2, 2, 3, 3, 4, 5 };
var unique = CollectionUtilities.Unique(numbers);
Assert.True(new HashSet <int> {
1, 2, 3, 4, 5
}.SetEquals(unique));
}
public void Unique_given_1_2_2_2_3_returns_1_2_3()
{
var input = new[] { 1, 2, 2, 2, 3 };
var even = CollectionUtilities.Unique(input);
// Not possible with Xunit - can be done with MSTest or NUnit using CollectionAssert
//Assert.Equal(new HashSet<int> { 3, 2, 1 }, even);
Assert.True(even.SetEquals(new[] { 3, 2, 1 }));
}
public void Unique_given_1_2_3_2_2_2_4_returns_1_2_3_4()
{
// Arrange
int[] input = { 1, 2, 3, 2, 2, 2, 4 };
// Act
var output = CollectionUtilities.Unique(input);
// Assert
int[] expected = { 1, 2, 3, 4 };
Assert.Equal(expected, output);
}