bad unit tests

[chlebowa]

testthat::test_that("init throws when data has no datanames", {
  testthat::expect_error(
    init(data = teal_data(), modules = list(example_module())),
    "`data` object has no datanames and its environment is empty"
  )
})

This runs

td <- within(teal_data(), i <- iris)
init(data = td, modules = example_module()) %>% runApp

The test passes because there is no data.

Defaulting datanames to teal_data@env contents has made things somewhat confusing.

Amend error message and unit test.