type return = unit M.t
The return type of each test case run by Alcotest. For the standard Alcotest
module, return = unit
. The concurrent backends Alcotest_lwt
and Alcotest_async
set return = unit Lwt.t
and return = Async_kernel.Deferred.t
respectively.
Speed level of a test. Tests marked as `Quick
are always run. Tests marked as `Slow
are skipped when the `-q` flag is passed.
type 'a test_case = string * speed_level * ('a -> return)
A test case is a UTF-8 encoded documentation string, a speed level and a function to execute. Typically, the testing function calls the helper functions provided below (such as check
and fail
).
The exception return by run
in case of errors.
val test_case : string -> speed_level -> ('a -> return) -> 'a test_case
test_case n s f
is the test case n
running at speed s
using the function f
.
type 'a test = string * 'a test_case list
A test is a UTF-8 encoded name and a list of test cases. The name can be used for filtering which tests to run on the CLI.
type 'a with_options = ?and_exit:bool -> ?verbose:bool -> ?compact:bool -> ?tail_errors:[ `Unlimited | `Limit of int ] -> ?quick_only:bool -> ?show_errors:bool -> ?json:bool -> ?filter:(Re.re option * IntSet.t option) -> ?log_dir:string -> 'a
The various options taken by the tests runners run
and run_with_args
:
and_exit
(defaulttrue
). Once the tests have completed, exit with return code0
if all tests passed, otherwise1
.verbose
(defaultfalse
). Display the test std.out and std.err (rather than redirecting to a log file).compact
(defaultfalse
). Compact the output of the tests.tail_errors
(default unlimited). Show only the last N lines of output of failed tests.quick_only
(defaultfalse
). Don't run tests with the`Slow
speed level.show_errors
(defaultfalse
). Display the test errors.json
(defaultfalse
). Print test results in a JSON-compatible format.log_dir
(default"$PWD/_build/_tests/"
). The directory in which to log the output of the tests (ifverbose
is not set).
val run : (string -> unit test list -> return) with_options
val run_with_args : (string -> 'a -> 'a test list -> return) with_options