context: Test contexts

In r-dbi/DBItest: Testing DBI Backends

Test contexts

Description

Create a test context, set and query the default context.

Usage

make_context(
  drv,
  connect_args = NULL,
  set_as_default = TRUE,
  tweaks = NULL,
  name = NULL,
  default_skip = NULL
)

set_default_context(ctx)

get_default_context()

Arguments

drv	⁠[DBIConnector]⁠ An object of class DBIConnector that describes how to connect to the database.
connect_args	⁠[named list]⁠ Deprecated.
set_as_default	⁠[logical(1)]⁠ Should the created context be set as default context?
tweaks	⁠[DBItest_tweaks]⁠ Tweaks as constructed by the tweaks() function.
name	⁠[character]⁠ An optional name of the context which will be used in test messages.
default_skip	⁠[character]⁠ Default value of skip argument to test_all() and other testing functions.
ctx	⁠[DBItest_context]⁠ A test context.

Value

⁠[DBItest_context]⁠
A test context, for set_default_context the previous default context (invisibly) or NULL.

Examples

make_context(
  new(
    "DBIConnector",
    .drv = RSQLite::SQLite(),
    .conn_args = list(dbname = tempfile("DBItest", fileext = ".sqlite"))
  ),
  tweaks = tweaks(
    constructor_relax_args = TRUE,
    placeholder_pattern = c("?", "$1", "$name", ":name"),
    date_cast = function(x) paste0("'", x, "'"),
    time_cast = function(x) paste0("'", x, "'"),
    timestamp_cast = function(x) paste0("'", x, "'"),
    logical_return = function(x) as.integer(x),
    date_typed = FALSE,
    time_typed = FALSE,
    timestamp_typed = FALSE
  ),
  default_skip = c("roundtrip_date", "roundtrip_timestamp")
)

r-dbi/DBItest documentation built on April 20, 2024, 6:10 p.m.