context("makeSimpleFileLogger")
test_that("makeSimpleFileLogger", {
fn = tempfile()
logger = makeSimpleFileLogger(fn)
expect_identical(class(logger), "SimpleFileLogger")
expect_equal(logger$getSize(), 0)
msg1 = "xxx111xxx"
logger$log(msg1)
expect_true(grepl(msg1, readLines(fn)))
expect_identical(msg1, logger$getMessages(1))
expect_equal(logger$getSize(), 1)
expect_true(file.exists(fn))
logger$clear()
expect_false(file.exists(fn))
})
test_that("message order", {
fn = tempfile()
msg1 = "xxx111xxx"
msg2 = "xxx222xxx"
for (keep in c(0, 10)) {
logger = makeSimpleFileLogger(fn)
logger$log(msg1)
logger$log(msg2)
expect_identical(grepl("xxx[0-9]+xxx$", readLines(fn)), c(TRUE, TRUE))
expect_identical(grepl("^xxx[0-9]+xxx$", logger$getMessages(2)), c(TRUE, TRUE))
expect_identical(logger$getMessages(1), msg2)
expect_identical(logger$getMessages(2), c(msg2, msg1))
}
})
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