public void Distinct_removes_duplicates_using_provided_equality_function()
{
var values = new[] { "a", "b", "A" };
Assert.True(
new[] { "a", "b" }.SequenceEqual(
values.Distinct((a, b) => a.Equals(b, StringComparison.OrdinalIgnoreCase))));
}
public void DistinctTest()
{
// ARRANGE
var list = new[] { "a", "aa", "aaa", "b", "bb", "bbb" };
// ACT
var distinct = list.Distinct(x => x.Length).ToList();
// ASSERT
CollectionAssert.AreEqual(new[] { "a", "aa", "aaa" }, distinct);
}
public void ShouldFilterOutDuplicateGcSettings()
{
var gcSettings = new[]
{
new GcBenchmarkSetting(GcMetric.TotalCollections, GcGeneration.Gen0, AssertionType.Throughput,
Assertion.Empty),
new GcBenchmarkSetting(GcMetric.TotalCollections, GcGeneration.Gen0, AssertionType.Total,
Assertion.Empty),
new GcBenchmarkSetting(GcMetric.TotalCollections, GcGeneration.Gen1, AssertionType.Throughput,
Assertion.Empty),
new GcBenchmarkSetting(GcMetric.TotalCollections, GcGeneration.Gen1, AssertionType.Total,
Assertion.Empty)
};
var distinctGcSettings = gcSettings.Distinct(GcBenchmarkSetting.GcBenchmarkDistinctComparer.Instance);
// according to normal equality, all 4 should be distinct as they have different assertion settings
Assert.Equal(4, gcSettings.Distinct().Count());
// but using our special EqualityComparer<T>, they really track only 2 distinct metrics
Assert.Equal(2, distinctGcSettings.Count());
}
public void ShouldFilterOutDuplicateMemorySettings()
{
var memorySettings = new[]
{
new MemoryBenchmarkSetting(MemoryMetric.TotalBytesAllocated,
Assertion.Empty),
new MemoryBenchmarkSetting(MemoryMetric.TotalBytesAllocated,
new Assertion(MustBe.ExactlyEqualTo, 1.0d, null)),
};
var distinctMemorySettings = memorySettings.Distinct(MemoryBenchmarkSetting.MemoryBenchmarkDistinctComparer.Instance);
Assert.Equal(2, memorySettings.Length);
Assert.Equal(1, distinctMemorySettings.Count());
}
public void ShouldFilterOutDuplicateCounterSettings()
{
var counterSettings = new[]
{
new CounterBenchmarkSetting("counter1", AssertionType.Throughput, Assertion.Empty),
new CounterBenchmarkSetting("counter1", AssertionType.Total, Assertion.Empty),
new CounterBenchmarkSetting("counter2", AssertionType.Throughput, Assertion.Empty),
new CounterBenchmarkSetting("counter2", AssertionType.Total, Assertion.Empty),
};
var distinctMemorySettings = counterSettings.Distinct(CounterBenchmarkSetting.CounterBenchmarkDistinctComparer.Instance).ToList();
Assert.Equal(4, counterSettings.Length);
Assert.Equal(2, distinctMemorySettings.Count());
Assert.Equal(1, distinctMemorySettings.Count(x => x.CounterName.CounterName.Equals("counter1")));
Assert.Equal(1, distinctMemorySettings.Count(x => x.CounterName.CounterName.Equals("counter2")));
}
public void TestDistinct()
{
var numbers = new[] {1, 2, 3, 3, 1, 1,};
var uniqueNumbers = numbers.Distinct();
Assert.That(uniqueNumbers.Count(), Is.EqualTo(3));
}
