public void FirstEmpty()
{
Assert.Throws <InvalidOperationException>(() => ImmutableArrayExtensions.First(s_empty));
Assert.Throws <InvalidOperationException>(() => ImmutableArrayExtensions.First(s_empty, n => true));
AssertExtensions.Throws <ArgumentNullException>("predicate", () => ImmutableArrayExtensions.First(s_empty, null));
Assert.Throws <InvalidOperationException>(() => ImmutableArrayExtensions.First(s_emptyBuilder));
}
public void First()
{
Assert.Equal(Enumerable.First(oneElement), ImmutableArrayExtensions.First(oneElement));
Assert.Equal(Enumerable.First(oneElement, i => true), ImmutableArrayExtensions.First(oneElement, i => true));
Assert.Equal(Enumerable.First(manyElements), ImmutableArrayExtensions.First(manyElements));
Assert.Equal(Enumerable.First(manyElements, i => true), ImmutableArrayExtensions.First(manyElements, i => true));
Assert.Equal(Enumerable.First(oneElementBuilder), ImmutableArrayExtensions.First(oneElementBuilder));
Assert.Equal(Enumerable.First(manyElementsBuilder), ImmutableArrayExtensions.First(manyElementsBuilder));
Assert.Throws <InvalidOperationException>(() => ImmutableArrayExtensions.First(empty));
Assert.Throws <InvalidOperationException>(() => ImmutableArrayExtensions.First(empty, i => true));
Assert.Throws <InvalidOperationException>(() => ImmutableArrayExtensions.First(manyElements, i => false));
}
public void FirstEmptyDefault()
{
Assert.Throws <NullReferenceException>(() => ImmutableArrayExtensions.First(emptyDefault));
Assert.Throws <NullReferenceException>(() => ImmutableArrayExtensions.First(emptyDefault, n => true));
Assert.Throws <ArgumentNullException>(() => ImmutableArrayExtensions.First(emptyDefault, null));
}
public void FirstEmpty()
{
Assert.Throws <InvalidOperationException>(() => ImmutableArrayExtensions.First(empty));
Assert.Throws <InvalidOperationException>(() => ImmutableArrayExtensions.First(empty, n => true));
Assert.Throws <ArgumentNullException>(() => ImmutableArrayExtensions.First(empty, null));
}
public void First()
{
Assert.Equal(Enumerable.First(oneElement), ImmutableArrayExtensions.First(oneElement));
Assert.Equal(Enumerable.First(manyElements), ImmutableArrayExtensions.First(manyElements));
}
