update tests

Author: ben-schwen

inst/tests/tests.Rraw

@@ -21903,9 +21903,9 @@ DT = unserialize(serialize(as.data.table(mtcars), NULL))
 test(2351.2, set(DT, j="carb", value=NULL), as.data.table(mtcars)[,carb:=NULL])
 DT = unserialize(serialize(as.data.table(mtcars), NULL))
 null_in_value <- NULL
-test(2351.3, "cyl" %notin% names(DT[, cyl := null_in_value]), FALSE)
+test(2351.3, "cyl" %notin% names(DT[, cyl := null_in_value]))
 DT = unserialize(serialize(as.data.table(mtcars), NULL))
-test(2351.4,  ncol(DT[, c("cyl", "mpg") := .(null_in_value, null_in_value)]), ncol(mtcars) - 2)
+test(2351.4,  ncol(DT[, c("cyl", "mpg") := .(null_in_value, null_in_value)]), ncol(mtcars) - 2L)
 rm(DT)
 
 # rbindlist did not protect the temporary UTF-8 strings, #7452