.test_env <- new.env()
.test_env$sc <- NULL
testthat_spark_version <- function() {
Sys.getenv("SPARK_VERSION", unset = "3.5")
}
testthat_spark_connection <- function() {
version <- testthat_spark_version()
spark_installed <- sparklyr::spark_installed_versions()
if (nrow(spark_installed[spark_installed$spark == version, ]) == 0) {
options(sparkinstall.verbose = TRUE)
sparklyr::spark_install(version)
}
if (is.null(.test_env$sc)) {
options(sparklyr.sanitize.column.names.verbose = TRUE)
options(sparklyr.verbose = TRUE)
options(sparklyr.na.omit.verbose = TRUE)
options(sparklyr.na.action.verbose = TRUE)
.test_env$sc <- sparklyr::spark_connect(master = "local", version = version)
}
.test_env$sc
}
testthat_tbl <- function(name) {
sc <- testthat_spark_connection()
tbl <- tryCatch(dplyr::tbl(sc, name), error = identity)
if (inherits(tbl, "error")) {
data <- eval(as.name(name), envir = parent.frame())
invisible(
tbl <- dplyr::copy_to(sc, data, name = name)
)
}
tbl
}
skip_unless_verbose <- function(message = NULL) {
message <- message %||% "Verbose test skipped"
verbose <- Sys.getenv("SPARKLYR_TESTS_VERBOSE", unset = NA)
if (is.na(verbose)) skip(message)
invisible(TRUE)
}
test_requires <- function(...) {
for (pkg in list(...)) {
if (!require(pkg, character.only = TRUE, quietly = TRUE)) {
fmt <- "test requires '%s' but '%s' is not installed"
skip(sprintf(fmt, pkg, pkg))
}
}
invisible(TRUE)
}
check_params <- function(test_args, params) {
purrr::iwalk(
test_args,
function(.x, .y) {
testthat::expect_equal(.x, params[[.y]], info = .y)
}
)
}
test_param_setting <- function(sc, fn, test_args) {
collapse_sublists <- function(x) purrr::map_if(x, rlang::is_bare_list, unlist)
params1 <- do.call(fn, c(list(x = sc), test_args)) %>%
sparklyr::ml_params(allow_null = TRUE) %>%
collapse_sublists()
params2 <- do.call(fn, c(list(x = sparklyr::ml_pipeline(sc)), test_args)) %>%
sparklyr::ml_stage(1) %>%
sparklyr::ml_params(allow_null = TRUE) %>%
collapse_sublists()
test_args <- collapse_sublists(test_args)
check_params(test_args, params1)
check_params(test_args, params2)
}
test_default_args <- function(sc, fn) {
default_args <- rlang::fn_fmls(fn) %>%
as.list() %>%
purrr::discard(~ is.symbol(.x) || is.language(.x)) %>%
# rlang::modify(uid = NULL) %>%
purrr::compact()
params <- do.call(fn, list(x = sc)) %>%
sparklyr::ml_params(allow_null = TRUE)
check_params(default_args, params)
}
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