test.data.table withouth xts installed

[jangorecki]

To reproduce you should have latest 1.9.7 and xts installed.

library(data.table)
test.data.table()
# test will pass
remove.packages("xts")

restart session, try again:

library(data.table)
test.data.table()
# now there is one test failed

Running test id 842     Test 842 ran without errors but failed check that x equals y:
> x = last(list("a", 1:2, 89)) 
[[1]]
[1] 89

> y = 89 
[1] 89

That issue expose a gap in CI process, would be great to have two workflow, one for just data.table, another for data.table with all suggests.

[arunsrinivasan]

Thanks Jan.