tests/testthat/test-driver_monkey.R

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

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test_that("the monkey driver sees, and the monkey driver does", {
  db <- adbc_database_init(adbc_driver_monkey())
  expect_s3_class(db, "adbc_database_monkey")
  con <- adbc_connection_init(db)
  expect_s3_class(con, "adbc_connection_monkey")

  input <- data.frame(x = 1:10)
  stmt <- adbc_statement_init(con, input)
  expect_s3_class(stmt, "adbc_statement_monkey")
  stream <- nanoarrow::nanoarrow_allocate_array_stream()
  expect_identical(adbc_statement_execute_query(stmt, stream), -1)
  expect_identical(as.data.frame(stream$get_next()), input)
  expect_error(
    adbc_statement_release(stmt),
    class = "adbc_error_child_count_not_zero"
  )
  stream$release()
  adbc_statement_release(stmt)

  stmt <- adbc_statement_init(con, input)
  expect_identical(adbc_statement_execute_query(stmt, NULL), -1)
  adbc_statement_release(stmt)
})