public TestDbAsyncEnumeratorTests()
{
var data = new List <double> {
5.5
};
var inner = data.GetEnumerator();
testDbAsyncEnumerator = new TestDbAsyncEnumerator <double>(inner);
}
public void ReturnsInstance()
{
// Arrange
var inner = new List <double>().GetEnumerator();
// Act
var enumerator = new TestDbAsyncEnumerator <double>(inner);
// Assert
Assert.IsType <TestDbAsyncEnumerator <double> >(enumerator);
}
public void DisposesInner()
{
// Arrange
var mockInner = new Mock <IEnumerator <double> >();
var inner = mockInner.Object;
var enumerator = new TestDbAsyncEnumerator <double>(inner);
// Act
enumerator.Dispose();
// Assert
mockInner.Verify(i => i.Dispose(), Times.Once);
}
public async Task CallsMoveNextOnInner()
{
// Arrange
var mockInner = new Mock <IEnumerator <double> >();
var inner = mockInner.Object;
var enumerator = new TestDbAsyncEnumerator <double>(inner);
var cancellationToken = CancellationToken.None;
// Act
await enumerator.MoveNextAsync(cancellationToken);
// Assert
mockInner.Verify(i => i.MoveNext(), Times.Once);
}
public void ReturnsCurrentElement()
{
// Arrange
var mockInner = new Mock <IEnumerator <double> >();
mockInner.SetupGet(i => i.Current).Returns(5.5);
var inner = mockInner.Object;
var enumerator = new TestDbAsyncEnumerator <double>(inner);
// Act
var current = enumerator.Current;
// Assert
Assert.Equal(5.5, current);
}
public async Task ReturnsValueFromInnerMoveNext()
{
// Arrange
var mockInner = new Mock <IEnumerator <double> >();
mockInner.Setup(i => i.MoveNext()).Returns(true);
var inner = mockInner.Object;
var enumerator = new TestDbAsyncEnumerator <double>(inner);
var cancellationToken = CancellationToken.None;
// Act
var moved = await enumerator.MoveNextAsync(cancellationToken);
// Assert
Assert.True(moved);
}
