Nothing
context("Read JSON files")
test_that("returned data has class 'james'", {
# get path to raw JSON file included in package distribution
json.file <- system.file("extdata", "james.json", package = "james.analysis")
# read results from file
james <- readJAMES(json.file)
# verify
expect_is(james, "james")
})
test_that("readJAMES complains on invalid arguments", {
expect_error(readJAMES(NULL), "non-empty string")
expect_error(readJAMES(NA), "non-empty string")
expect_error(readJAMES(""), "non-empty string")
expect_error(readJAMES(c("a", "b")), "non-empty string")
})
test_that("readJAMES complains if the input file is not found", {
expect_error(readJAMES("i-do-not-exist"), "does not exist")
})
test_that("readJAMES checks JSON structure", {
# write temporary JSON file with bogus structure
file <- tempfile()
content <- '{"employees":[{"firstName":"John","lastName":"Doe"},{"firstName":"Anna","lastName":"Smith"},{"firstName":"Peter","lastName":"Jones"}]}'
writeLines(content, file)
# verify
expect_error(readJAMES(file), "unexpected JSON structure")
# overwrite with empty array
writeLines("[]", file)
# verify
expect_error(readJAMES(file), "unexpected JSON structure")
# remove temporary file
file.remove(file)
})
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