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library(testit)
dep_list$restore()
knit_code$restore()
assert('find_symbols() identifies all symbols', {
(find_symbols('x = x + 1; rnorm(1, std = z)') %==% c('x', 'rnorm', 'z'))
})
knit_lazy = function(lazy = TRUE) {
in_dir(tempdir(), {
txt = c(sprintf('```{r test, cache=TRUE, cache.lazy=%s}', lazy),
'x1 = Sys.time()', '```')
knit(text = txt, quiet = TRUE)
x2 = x1
Sys.sleep(0.1)
knit(text = txt, quiet = TRUE)
x1 == x2 # x1 should not be updated
})
}
assert('cache.lazy = TRUE/FALSE works', {
(knit_lazy(TRUE))
(knit_lazy(FALSE))
})
knit_code$set(a = 1, b = 2, c = 3)
assert('dep_prev() sets dependencies on previous chunks', {
# dependency is empty now
(dep_list$get() %==% list())
# b/c depend on a, c depends on b
dep_prev()
(dep_list$get() %==% list(a = c('b', 'c'), b = 'c'))
})
dep_list$restore()
knit_code$restore()
assert('dep_auto() solves dependencies', {
# dependency is empty now
(dep_list$get() %==% list())
# base rmd text
rmd0 = c(
'```{r, autodep=TRUE, cache=TRUE}',
'x = %s',
'```',
'```{r, autodep=TRUE, cache=TRUE}',
'print(x)',
'```'
)
td = tempfile()
dir.create(td, showWarnings = FALSE, recursive = TRUE)
rmd1 = sprintf(rmd0, 'runif(1)')
rmd2 = sprintf(rmd0, '"a"')
# without child document
in_dir(td, {
# with cache, the result should reproduce
knit1 = knit(text = rmd1, quiet = TRUE)
(knit(text = rmd1, quiet = TRUE) %==% knit1)
# on updating `x`, the printed result should change
knit2 = knit(text = rmd2, quiet = TRUE)
print2 = gsub('\n.*', '', gsub('.*\n##', '##', knit2))
(print2 %==% '## [1] "a"')
})
})
dep_list$restore()
knit_code$restore()
assert('dep_auto() solves dependencies of child documents', {
# dependency is empty now
(dep_list$get() %==% list())
# base rmd text
rmd0 = c(
'```{r, autodep=TRUE, cache=TRUE}',
'x = %s',
'```',
'```{r, autodep=TRUE, cache=TRUE}',
'print(x)',
'```'
)
rmd1 = sprintf(rmd0, 'runif(1)')
rmd2 = sprintf(rmd0, '"a"')
td = tempfile()
dir.create(td, showWarnings = FALSE, recursive = TRUE)
# with child document
parent = c(
'```{r, child="child.Rmd"}',
'```'
)
in_dir(td, {
# with cache, the result should reproduce
writeLines(rmd1, 'child.Rmd')
knit1 = knit(text = parent, quiet = TRUE)
(knit(text = parent, quiet = TRUE) %==% knit1)
# on updating `x`, the printed result should change
writeLines(rmd2, 'child.Rmd')
knit2 = knit(text = parent, quiet = TRUE)
print2 = gsub('\n.*', '', gsub('.*\n##', '##', knit2))
(print2 %==% '## [1] "a"')
})
})
dep_list$restore()
knit_code$restore()
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