# Copyright 2018 Opening Reproducible Research (https://o2r.info)
library("containerit")
context("FROM instruction")
test_that("A FROM instruction can be created", {
obj <- methods::new("From", image = "myimage")
instruction <- toString(obj)
expect_equal(instruction, "FROM myimage")
expect_equal(instruction, as.character(obj))
instruction <- toString(new(
"From",
image = "myimage",
postfix = methods::new("Digest", "digest")
))
expect_equal(instruction, "FROM myimage@digest")
instruction <- toString(new(
"From",
image = "myimage",
postfix = methods::new("Tag", "mytag")
))
expect_equal(instruction, "FROM myimage:mytag")
})
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