tests/testthat/test-tag.R

In roxygen2: In-Line Documentation for R

test_that("warn about unknown tags", {
  block <- "
    #' @unknown
    foo <- function() {}
  "
  expect_snapshot_warning(
    roc_proc_text(rd_roclet(), block)
  )
})

# Test low-level behaviour ----------------------------------------------------

test_that("braces must balance", {
  expect_true(rdComplete("{}", is_code = FALSE))
  expect_true(rdComplete("{{}}", is_code = FALSE))

  expect_false(rdComplete("{", is_code = FALSE))
  expect_false(rdComplete("}", is_code = FALSE))
})

test_that("can't end with escape", {
  expect_false(rdComplete("\\", is_code = FALSE))
})

test_that("escaped brackets are ignored", {
  expect_true(rdComplete("\\{", is_code = FALSE))
  expect_true(rdComplete("\\}", is_code = FALSE))
  expect_false(rdComplete("{\\}", is_code = FALSE))
})

test_that("brackets in comments are ignored", {
  expect_true(rdComplete("% {", is_code = FALSE))
  expect_true(rdComplete("% }", is_code = FALSE))
})

test_that("R comments don't close latex-like tags", {
  expect_true(rdComplete("A comment \\code{#}.", is_code = FALSE))
})

test_that("newline ends comment", {
  expect_false(rdComplete("%\n{", is_code = FALSE))
})

test_that("escape disables comment", {
  expect_false(rdComplete("\\%{", is_code = FALSE))
})

test_that("strings must be closed in code", {
  expect_false(rdComplete("'", is_code = TRUE))
  expect_false(rdComplete('"', is_code = TRUE))
})

test_that("strings respect escapes", {
  expect_false(rdComplete("'\\'", is_code = TRUE)) # '\'
  expect_true(rdComplete("'\\''", is_code = TRUE)) # '\''
})

test_that("braces in strings don't need to match in code", {
  expect_true(rdComplete("'{{'", is_code = TRUE))
})

test_that("strings in code comments don't need to be closed", {
  expect_true(rdComplete("# '", is_code = TRUE))
})

test_that("braces in code must match", {
  expect_false(rdComplete("# {", is_code = TRUE))
  expect_true(rdComplete("# {}", is_code = TRUE))
})

# Test that incomplete Rd is caught in Rd blocks -------------------------------

test_that("incomplete rd in tag raises error", {
  expect_warning(roc_proc_text(rd_roclet(), "
    #' Title
    #' @aliases title{
    x <- 1"), "mismatched braces")
})

test_that("incomplete rd in prequel raises error", {
  expect_warning(
    roc_proc_text(rd_roclet(), "
      #' Title {
      x <- 1"
    ),
    "mismatched braces"
  )
})