public void CalculateSkip_Return_Twenty()
{
//Arrange
var pageInfo = new PageInfo(10, 3);
//Act
var skip = pageInfo.CalculateSkip();
//Assert
Assert.IsTrue(skip == 20);
}
public async Task <PagedResult <DomainUser> > GetAll(PageInfo pageInfo, CancellationToken cancellationToken)
{
var findOptions = new FindOptions <User, User> {
Skip = pageInfo.CalculateSkip(), Limit = pageInfo.PageSize
};
var users = (await _context.Users.FindAsync(FilterDefinition <User> .Empty, findOptions, cancellationToken)).ToList();
var domainUsers = _mapper.Map <IEnumerable <DomainUser> >(users);
pageInfo.TotalCount = await _context.Users.CountDocumentsAsync(FilterDefinition <User> .Empty, null, cancellationToken);
return(new PagedResult <DomainUser>(domainUsers, pageInfo));
}
public async Task Call_GetAll_ShouldCall_FindAsyncOnDbContext_And_ReturnPagedUsersList(int pageSize, int pageIndex, int expcetedPagedUserCount)
{
// Arrange
var pageInfo = new PageInfo(pageSize, pageIndex);
var users = new List <User>
{
new User {
Id = 1, Name = "John"
},
new User {
Id = 2, Name = "John"
},
new User {
Id = 3, Name = "John"
},
new User {
Id = 4, Name = "John"
},
new User {
Id = 5, Name = "John"
}
};
var findOptions = new FindOptions <User, User> {
Skip = pageInfo.CalculateSkip(), Limit = pageInfo.PageSize
};
FakeDbContextFactory.CreateMockCollection(_dbContextMock.Setup(db => db.Users), users, findOptions);
// Act
var pagedUsers = await _userRepository.GetAll(pageInfo, CancellationToken.None);
// Assert
Assert.Equal(expcetedPagedUserCount, pagedUsers.Result.Count());
Assert.Equal(pageSize, pagedUsers.PageInfo.PageSize);
Assert.Equal(pageIndex, pagedUsers.PageInfo.PageIndex);
Assert.Equal(users.Count(), pagedUsers.PageInfo.TotalCount);
_dbContextMock.Verify(db => db.Users.FindAsync(FilterDefinition <User> .Empty, It.IsAny <FindOptions <User, User> >(), It.IsAny <CancellationToken>()), Times.Once);
}