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library(SyncRNG)
context("SyncRNG unit tests")
test_that("test_randi", {
s <- SyncRNG(seed=123456)
expect_equal(s$randi(), 959852049)
expect_equal(s$randi(), 2314333085)
expect_equal(s$randi(), 2255782734)
expect_equal(s$randi(), 2921461239)
expect_equal(s$randi(), 1024197102)
})
test_that("test_rand", {
s <- SyncRNG(seed=123456)
expect_equal(s$rand(), 959852049 /(2**32))
expect_equal(s$rand(), 2314333085/(2**32))
expect_equal(s$rand(), 2255782734/(2**32))
expect_equal(s$rand(), 2921461239/(2**32))
expect_equal(s$rand(), 1024197102/(2**32))
})
test_that("test_randbelow", {
s <- SyncRNG(seed=123456)
expect_equal(s$randbelow(5), 4)
expect_equal(s$randbelow(5), 0)
expect_equal(s$randbelow(5), 4)
expect_equal(s$randbelow(5), 4)
expect_equal(s$randbelow(5), 2)
})
test_that("test_shuffle", {
s <- SyncRNG(seed=123456)
x <- c(1, 2, 3, 4, 5)
y <- s$shuffle(x)
expect_equal(y, c(3, 4, 1, 2, 5))
})
test_that("test_first_1000", {
s <- SyncRNG(seed=0)
fileName <- "./first_1000_seed_0.txt"
conn <- file(fileName, open="r")
linn <- readLines(conn)
for (i in 1:length(linn)) {
exp <- as.numeric(linn[i])
expect_equal(exp, s$randi())
}
close(conn)
})
printf <- function(...) invisible(cat(sprintf(...)));
test_that("test_first_1000_unif", {
set.seed(0, 'user', 'user')
fileName <- "./first_1000_seed_0.txt"
conn <- file(fileName, open="r")
linn <- readLines(conn)
for (i in 1:length(linn)) {
exp <- as.numeric(linn[i])
u <- as.numeric(runif(1)*(2**32 - 1))
expect_equal(exp, u)
}
close(conn)
})
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