public void Contains_IEnumerable_ResetWasCall()
{
var enumerable = EnumerableMock.CreateNotEmpty();
EnumerableExtension.Contains(enumerable, new object());
Assert.True(enumerable.ResetWasCall);
}
public void Any_IEnumerableManyElems_NoUnnecessaryIterations()
{
EnumerableMock enumerable = EnumerableMock.CreateWintCountElems(9);
EnumerableExtension.Any(enumerable);
Assert.Equal(1, enumerable.MoveNextCallCounter);
}
public void Any_IEnumerable_ResetWasCall()
{
var enumerable = EnumerableMock.CreateNotEmpty();
EnumerableExtension.Any(enumerable);
Assert.True(enumerable.ResetWasCall);
}
public void CountMoreThan_IEnumerable_ResetWasCall()
{
var enumerable = EnumerableMock.CreateWintCountElems(1);
EnumerableExtension.CountMoreThan(enumerable, 1);
Assert.True(enumerable.ResetWasCall);
}
public void CountMoreThan_IEnumerableManyElems_NoUnnecessaryIterations()
{
EnumerableMock enumerable = EnumerableMock.CreateWintCountElems(100);
EnumerableExtension.CountMoreThan(enumerable, 100);
Assert.Equal(101, enumerable.MoveNextCallCounter);
}
public void SliceDelete_FromEnumerableExtensions_DoesNotCallReset()
{
this.RunSliceTestCases((from, to, step, length) =>
{
var sut = new EnumerableMock <int>(Enumerable.Range(0, length));
EnumerableExtensions.SliceDelete(sut, from, to, step).Sum();
if (sut.Enumerators.Count > 0)
{
var resetCallCount = sut.Enumerators.Single().ResetCallCount;
LazyAssert.True(
resetCallCount == 0,
() => ErrorFormatter.Format(sliceDeleteDoesntCallResetErrorFormat, from, to, step, length, resetCallCount));
}
});
}
public void Slice_FromEnumerableExtensions_CallsDisposeOnce()
{
this.RunSliceTestCases((from, to, step, length) =>
{
var sut = new EnumerableMock<int>(Enumerable.Range(0, length));
EnumerableExtensions.Slice(sut, from, to, step).Sum();
if (sut.Enumerators.Count > 0)
{
var disposeCallCount = sut.Enumerators.Single().DisposeCallCount;
LazyAssert.True(
disposeCallCount == 1,
() => ErrorFormatter.Format(sliceDisposeOnceErrorFormat, from, to, step, length, disposeCallCount));
}
});
}
public void SliceDelete_FromEnumerableExtensions_CallsDisposeOnce()
{
this.RunSliceTestCases((from, to, step, length) =>
{
var sut = new EnumerableMock <int>(Enumerable.Range(0, length));
EnumerableExtensions.SliceDelete(sut, from, to, step).Sum();
if (sut.Enumerators.Count > 0)
{
var disposeCallCount = sut.Enumerators.Single().DisposeCallCount;
LazyAssert.True(
disposeCallCount == 1,
() => ErrorFormatter.Format(sliceDeleteDisposeOnceErrorFormat, from, to, step, length, disposeCallCount));
}
});
}
public void SliceDelete_FromEnumerableExtensions_DoesntHandleExceptions()
{
this.RunSliceTestCases((from, to, step, length) =>
{
bool expected = false;
var collection = new EnumerableMock <int>(Enumerable.Range(0, length));
collection.EnumeratorCreated += e => { e.Current = () => { expected = true; throw new InvalidOperationException(); }; };
bool sut = false;
try
{
EnumerableExtensions.SliceDelete(collection, from, to, step).Sum();
}
catch (InvalidOperationException)
{
sut = true;
}
LazyAssert.True(sut == expected, () => ErrorFormatter.Format(sliceDeleteExceptionsAreNotHandledErrorFormat, from, to, step, length));
});
}
public void Slice_FromEnumerableExtensions_CallsDisposeWhenExceptionWasThrownFromMoveNext()
{
this.RunSliceTestCases((from, to, step, length) =>
{
var sut = new EnumerableMock<int>(Enumerable.Range(0, length));
sut.EnumeratorCreated += e => { e.MoveNext = () => { throw new InvalidOperationException(); }; };
try
{
EnumerableExtensions.Slice(sut, from, to, step).Sum();
}
catch (InvalidOperationException) { }
if (sut.Enumerators.Count > 0)
{
var disposeCallCount = sut.Enumerators.Single().DisposeCallCount;
LazyAssert.True(
disposeCallCount == 1,
() => ErrorFormatter.Format(sliceDisposeOnceErrorFormat, from, to, step, length, disposeCallCount));
}
});
}
public void SliceDelete_FromEnumerableExtensions_CallsDisposeWhenExceptionWasThrownFromCurrent()
{
this.RunSliceTestCases((from, to, step, length) =>
{
var sut = new EnumerableMock <int>(Enumerable.Range(0, length));
sut.EnumeratorCreated += e => { e.Current = () => { throw new InvalidOperationException(); }; };
try
{
EnumerableExtensions.SliceDelete(sut, from, to, step).Sum();
}
catch (InvalidOperationException) { }
if (sut.Enumerators.Count > 0)
{
var disposeCallCount = sut.Enumerators.Single().DisposeCallCount;
LazyAssert.True(
disposeCallCount == 1,
() => ErrorFormatter.Format(sliceDeleteDisposeOnceErrorFormat, from, to, step, length, disposeCallCount));
}
});
}
public void CountMoreThan_IEnumerableCountIsEquals_False()
{
Assert.False(EnumerableExtension.CountMoreThan(EnumerableMock.CreateWintCountElems(2), 2));
}
public void CountEquals_IEnumerableCountIsEquals_True()
{
Assert.True(EnumerableExtension.CountEquals(EnumerableMock.CreateWintCountElems(2), 2));
}
public void CountMoreThan_IEnumerableCountIsLess_False()
{
Assert.False(EnumerableExtension.CountMoreThan(EnumerableMock.CreateEmpty(), 1));
}
public void CountMoreThan_IEnumerableCountIsMore_True()
{
Assert.True(EnumerableExtension.CountMoreThan(EnumerableMock.CreateWintCountElems(2), 1));
}
public void Slice_FromEnumerableExtensions_DoesNotCallReset()
{
this.RunSliceTestCases((from, to, step, length) =>
{
var sut = new EnumerableMock<int>(Enumerable.Range(0, length));
EnumerableExtensions.Slice(sut, from, to, step).Sum();
if (sut.Enumerators.Count > 0)
{
var resetCallCount = sut.Enumerators.Single().ResetCallCount;
LazyAssert.True(
resetCallCount == 0,
() => ErrorFormatter.Format(sliceDoesntCallResetErrorFormat, from, to, step, length, resetCallCount));
}
});
}
public void Slice_FromEnumerableExtensions_DoesntHandleExceptions()
{
this.RunSliceTestCases((from, to, step, length) =>
{
bool expected = false;
var collection = new EnumerableMock<int>(Enumerable.Range(0, length));
collection.EnumeratorCreated += e => { e.Current = () => { expected = true; throw new InvalidOperationException(); }; };
bool sut = false;
try
{
EnumerableExtensions.Slice(collection, from, to, step).Sum();
}
catch (InvalidOperationException)
{
sut = true;
}
LazyAssert.True(sut == expected, () => ErrorFormatter.Format(sliceExceptionsAreNotHandledErrorFormat, from, to, step, length));
});
}
public void Any_IEnumerableIsNotEmpty_True()
{
EnumerableMock notEmpty = EnumerableMock.CreateNotEmpty();
Assert.True(EnumerableExtension.Any(notEmpty));
}
public void Any_IEnumerableIsEmpty_False()
{
EnumerableMock empty = EnumerableMock.CreateEmpty();
Assert.False(EnumerableExtension.Any(empty));
}
public void CountLessThan_IEnumerableCountIsLess_True()
{
Assert.True(EnumerableExtension.CountLessThan(EnumerableMock.CreateEmpty(), 1));
}
public void CountLessThan_IEnumerableCountIsMore_False()
{
Assert.False(EnumerableExtension.CountLessThan(EnumerableMock.CreateWintCountElems(2), 1));
}
public void Count_IEnumerableCountIsLess_False()
{
int count = 10;
Assert.Equal(count, EnumerableExtension.Count(EnumerableMock.CreateWintCountElems(count)));
}