Nothing
test_rename <- function() {
if (requireNamespace("DBI", quietly = TRUE) && requireNamespace("RSQLite", quietly = TRUE)) {
my_db <- DBI::dbConnect(RSQLite::SQLite(), ":memory:")
d <- rq_copy_to(my_db, 'd',
data.frame(AUC = 0.6, R2 = 0.2, z = 3))
op_tree <- rename_columns(d, c('R2' %:=% 'AUC', 'AUC' %:=% 'R2'))
#cat(format(op_tree))
sql <- to_sql(op_tree, my_db)
#cat(sql)
res <- execute(my_db, op_tree)
DBI::dbDisconnect(my_db)
expect <- wrapr::build_frame(
"R2" , "AUC", "z" |
0.6 , 0.2 , 3 )
expect_true(wrapr::check_equiv_frames(expect, res))
}
invisible(NULL)
}
test_rename()
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