tests/testthat/test-OASIS_long_tbl_df.R

In NeuroDataSets: A Comprehensive Collection of Neuroscience and Brain-Related Datasets

# NeuroDataSets - A Comprehensive Collection of Neuroscience and Brain-Related Datasets
# Version 0.3.1
# Copyright (C) 2025-2026 Renzo Caceres Rossi
#
# 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 <https://www.gnu.org/licenses/>.

# OASIS_long_tbl_df

library(testthat)

# Test 1: Confirm that it is a data frame with exactly 15 columns
test_that("OASIS_long_tbl_df is a data frame with 15 columns", {
  expect_s3_class(OASIS_long_tbl_df, "data.frame")
  expect_equal(ncol(OASIS_long_tbl_df), 15)
  expect_equal(length(OASIS_long_tbl_df), 15)
})

# Test 2: Confirm that the number of rows is exactly 373
test_that("OASIS_long_tbl_df has 373 rows", {
  expect_equal(nrow(OASIS_long_tbl_df), 373)
})

# Test 3: Confirm that the column names are correct
test_that("OASIS_long_tbl_df has correct column names", {
  expect_named(OASIS_long_tbl_df, c(
    "Subject ID", "MRI ID", "Group", "Visit", "MR Delay", "M/F", "Hand",
    "Age", "EDUC", "SES", "MMSE", "CDR", "eTIV", "nWBV", "ASF"
  ))
})

# Test 4: Confirm that the column types are correct
test_that("OASIS_long_tbl_df has correct column types", {
  expect_type(OASIS_long_tbl_df$`Subject ID`, "character")
  expect_type(OASIS_long_tbl_df$`MRI ID`, "character")
  expect_type(OASIS_long_tbl_df$Group, "character")
  expect_type(OASIS_long_tbl_df$Visit, "double")
  expect_type(OASIS_long_tbl_df$`MR Delay`, "double")
  expect_type(OASIS_long_tbl_df$`M/F`, "character")
  expect_type(OASIS_long_tbl_df$Hand, "character")
  expect_type(OASIS_long_tbl_df$Age, "double")
  expect_type(OASIS_long_tbl_df$EDUC, "double")
  expect_type(OASIS_long_tbl_df$SES, "double")
  expect_type(OASIS_long_tbl_df$MMSE, "double")
  expect_type(OASIS_long_tbl_df$CDR, "double")
  expect_type(OASIS_long_tbl_df$eTIV, "double")
  expect_type(OASIS_long_tbl_df$nWBV, "double")
  expect_type(OASIS_long_tbl_df$ASF, "double")
})