tests/testthat/test_dockerfiles.R

In o2r-project/containerit: Package R in Docker Containers

# Copyright 2018 Opening Reproducible Research (https://o2r.info)

context("Included Dockerfiles")

test_that("minimal Dockerfile can be built and run", {
  skip_if_not(stevedore::docker_available())

  client <- stevedore::docker_client()
  output <- capture_output({
    image <- client$image$build(context = "../../inst/docker/minimal", tag = "cntnrt-min")
    res <- client$container$run(image = "cntnrt-min",
                                cmd = c("R", "-e", "library(containerit); print(dockerfile())"),
                                rm = TRUE)
  })

  expect_match(toString(res$logs), "R is free software")
  expect_match(toString(res$logs), "Trying to determine system requirements")
  expect_match(toString(res$logs), "FROM rocker/r-ver")
})