public async Task DefaultIfEmptyWithInt64SourceWithDefaultValueIsEquivalentToDefaultIfEmptyTest()
{
// Arrange
// Arrange 'queryAdapter' parameter
var queryAdapter = await GetQueryAdapterAsync(DisallowAll);
// Arrange 'source' parameter
var source = GetQueryable <long>();
// Arrange 'asyncSource' parameter
var asyncSource = queryAdapter.GetAsyncQueryable <long>();
// Arrange 'defaultValue' parameter
var defaultValue = 5;
// Arrange 'expectedResult' parameter
var expectedResult = Enumerable.DefaultIfEmpty <long>(source, defaultValue);
// Act
var result = await AsyncQueryable.DefaultIfEmpty <long>(asyncSource, defaultValue).ToListAsync().ConfigureAwait(false);
// Assert
Assert.Equal(expectedResult, result);
}
public async Task DefaultIfEmptyWithDoubleSourceNullSourceThrowsArgumentNullExceptionTest()
{
// Arrange
// Arrange 'queryAdapter' parameter
var queryAdapter = await GetQueryAdapterAsync(DisallowAll);
// Arrange 'asyncSource' parameter
IAsyncQueryable <double> asyncSource = null !;
// Act
// -
// Assert
await Assert.ThrowsAsync <ArgumentNullException>(async() =>
{
await AsyncQueryable.DefaultIfEmpty <double>(asyncSource).ToListAsync().ConfigureAwait(false);
});
}