R Under development (unstable) (2025-05-27 r88249 ucrt) -- "Unsuffered Consequences"
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> library(datapackage)
> source("../tests/helpers.R")
> 
> # Basic
> dta <- list(a = 1, b = 1, c = list(a = 1, b = 1))
> res <- datapackage:::to_json(dta, as_array = c("a", "c/b"))
> expect_equal(res, "{\"a\":[1],\"b\":1,\"c\":{\"a\":1,\"b\":[1]}}", 
+   attributes = FALSE)
> 
> # Unnamed list
> dta <- list(a = 1, b = 1, c = list(list(a = 1, b = 1)))
> res <- datapackage:::to_json(dta, as_array = c("a", "c/b"))
> expect_equal(res, "{\"a\":[1],\"b\":1,\"c\":[{\"a\":1,\"b\":[1]}]}", 
+   attributes = FALSE)
> 
> # Ignore elements length > 1
> dta <- list(a = 1:2, b = 1, c = list(a = 1, b = 1))
> res <- datapackage:::to_json(dta, as_array = c("a", "c/b"))
> expect_equal(res, "{\"a\":[1,2],\"b\":1,\"c\":{\"a\":1,\"b\":[1]}}", 
+   attributes = FALSE)
> 
> # Ignore elements length > 1
> dta <- list(a = 1:2, b = 1, c = list(a = 1, b = 1))
> res <- datapackage:::to_json(dta, as_array = c("a", "c/b"))
> expect_equal(res, "{\"a\":[1,2],\"b\":1,\"c\":{\"a\":1,\"b\":[1]}}", 
+   attributes = FALSE)
> 
> # as_array contains elements not in object
> dta <- list(a = 1, b = 1, c = list(a = 1, b = 1))
> res <- datapackage:::to_json(dta, as_array = c("a", "c/b", "b/a"))
> expect_equal(res, "{\"a\":[1],\"b\":1,\"c\":{\"a\":1,\"b\":[1]}}", 
+   attributes = FALSE)
> 
> # Empty as_array
> dta <- list(a = 1, b = 1, c = list(a = 1, b = 1))
> res <- datapackage:::to_json(dta)
> expect_equal(res, "{\"a\":1,\"b\":1,\"c\":{\"a\":1,\"b\":1}}", 
+   attributes = FALSE)
> 
> # Zero length elements: stored as empty array
> dta <- list(a = 1, b = numeric(0), c = list(a = 1, b = numeric(0)))
> res <- datapackage:::to_json(dta, as_array = c("a", "c/b"))
> expect_equal(res, "{\"a\":[1],\"b\":[],\"c\":{\"a\":1,\"b\":[]}}", 
+   attributes = FALSE)
> 
> # Data frame
> dta <- list(c = data.frame(b = 1))
> res <- datapackage:::to_json(dta, as_array = c("a", "c/b"))
> expect_equal(res, "{\"c\":[{\"b\":1}]}", 
+   attributes = FALSE)
> 
> 
> 
> proc.time()
   user  system elapsed 
   0.28    0.09    0.35