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context("File assertions")
test_that("is.dir identifies dirs correctly", {
expect_true(is.dir(tempdir()))
expect_error(is.dir(tempfile()))
})
test_that("is.writeable works correctly", {
expect_true(is.writeable(tempdir()))
tf <- tempfile()
expect_error(is.writeable(tf)) # file doesn't exist yet
cat("foo", file=tf)
expect_true(is.writeable(tf)) # ...but now it does
})
test_that("is.readable works correctly", {
expect_true(is.readable(tempdir()))
tf <- tempfile()
expect_error(is.readable(tf)) # file doesn't exist yet
cat("foo", file=tf)
expect_true(is.readable(tf)) # ...but now it does
})
test_that("has_extension works correctly", {
# no extension
tf <- tempfile()
expect_true(has_extension(tf, ""))
expect_false(has_extension(tf, "x"))
# normal extension
ext <- "test"
tf <- tempfile(fileext=paste0(".", ext))
expect_true(has_extension(tf, ext))
expect_false(has_extension(tf, paste0(ext, "x")))
# empty extension
ext <- ""
tf <- tempfile(fileext=paste0(".", ext))
expect_true(has_extension(tf, ext))
expect_false(has_extension(tf, paste0(ext, "x")))
})
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