Nothing
test_select_stacking <- function() {
ops1 <- table_source('d', c('a', 'b', 'c')) %.>% select_columns(., c('a', 'b')) %.>% select_columns(., c('b'))
ops1_str <- format(ops1)
expect_equal(length(gregexpr('select_columns', ops1_str, fixed = TRUE)[[1]]), 1)
ops2 <- table_source('d', c('a', 'b', 'c')) %.>% select_columns(., c('a', 'b')) %.>% select_columns(., c('b', 'a'))
ops2_str <- format(ops2)
expect_equal(length(gregexpr('select_columns', ops2_str, fixed = TRUE)[[1]]), 1)
invisible(NULL)
}
test_select_stacking()
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