tests/testthat/test.parse.output.R

In nramon/madrid.air: Madrid Air Quality Data Parser

# Copyright (C) 2016 Ramon Novoa <ramonnovoa AT gmail DOT com>
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program.  If not, see <http://www.gnu.org/licenses/>.

test_that("CSV output is working", {

  # Delete the CSV file if it already exists.
  if (file.exists("test.parse.output.csv")) {
    unlink("test.parse.output.csv")
  }

  # Save the dataset to disk.
  data <- madrid.air.parse(input = "test.parse.output.data",
                           output = "test.parse.output.csv")

  # Check the generated CSV file.
  expect_equal(file.exists("test.parse.output.csv"), TRUE)

  # One line per hour plusheader.
  expect_equal(length(readLines("test.parse.output.csv")), 25)

  # Clean up.
  unlink("test.parse.output.csv")
})