tests/testthat/test-driver_void.R

In adbcdrivermanager: 'Arrow' Database Connectivity ('ADBC') Driver Manager

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test_that("void driver init function works", {
  expect_s3_class(adbc_driver_void(), "adbc_driver")
  expect_s3_class(adbc_driver_void()$driver_init_func, "adbc_driver_init_func")
})

test_that("drivers can be loaded by name/entrypoint", {
  shared <- adbcdrivermanager_shared()
  driver <- adbc_driver(shared, "AdbcTestVoidDriverInit")
  expect_s3_class(driver, "adbc_driver")
  expect_identical(driver$name, shared)
})

test_that("drivers are loaded using load_flags", {
  # Linux, at least in GitHub CI, doesn't allow loading by relative path
  # with either flag configuration.
  skip_on_os("linux")

  shared <- adbcdrivermanager_shared()

  withr::with_dir(dirname(shared), {
    expect_s3_class(
      adbc_driver(basename(shared), "AdbcTestVoidDriverInit"),
      "adbc_driver"
    )

    # Check that load_flags are used when test-loading the driver
    expect_error(
      adbc_driver(
        basename(shared),
        load_flags = adbc_load_flags(allow_relative_paths = FALSE)
      ),
      "Driver path is relative and relative paths are not allowed"
    )

    # Check that load_flags are passed to the database
    drv <- adbc_driver(basename(shared), "AdbcTestVoidDriverInit")
    drv$load_flags <- adbc_load_flags(allow_relative_paths = FALSE)
    expect_error(
      adbc_database_init(drv),
      "Driver path is relative and relative paths are not allowed"
    )
  })
})

test_that("drivers can be loaded by manifest path", {
  toml_content <- sprintf("
manifest_version = 1

name = 'Void Driver'

[ADBC]
version = 'v1.1.0'

[Driver]
entrypoint = 'AdbcTestVoidDriverInit'

[Driver.shared]
%s = '%s'

  ", current_arch(), adbcdrivermanager_shared())

  td <- tempfile()
  toml_path <- file.path(td, "void.toml")
  on.exit(unlink(td))
  dir.create(td)
  writeLines(toml_content, toml_path)

  drv <- adbc_driver(toml_path)
  expect_s3_class(adbc_database_init(drv), "adbc_database")
})