public async Task PrependWithNullableDecimalSourceWithElementIsEquivalentToPrependTest()
{
// Arrange
// Arrange 'queryAdapter' parameter
var queryAdapter = await GetQueryAdapterAsync(DisallowAll);
// Arrange 'source' parameter
var source = GetQueryable <decimal?>();
// Arrange 'asyncSource' parameter
var asyncSource = queryAdapter.GetAsyncQueryable <decimal?>();
// Arrange 'element' parameter
var element = 5;
// Arrange 'expectedResult' parameter
var expectedResult =
Enumerable
.Prepend <decimal?>(source, element);
// Act
var result = await AsyncQueryable.Prepend <decimal?>(asyncSource, element).ToListAsync().ConfigureAwait(false);
// Assert
Assert.Equal(expectedResult, result);
}
public async Task PrependWithDoubleSourceWithElementNullSourceThrowsArgumentNullExceptionTest()
{
// Arrange
// Arrange 'queryAdapter' parameter
var queryAdapter = await GetQueryAdapterAsync(DisallowAll);
// Arrange 'asyncSource' parameter
IAsyncQueryable <double> asyncSource = null !;
// Arrange 'element' parameter
var element = 5;
// Act
// -
// Assert
await Assert.ThrowsAsync <ArgumentNullException>(async() =>
{
await AsyncQueryable.Prepend <double>(asyncSource, element).ToListAsync().ConfigureAwait(false);
});
}