qcheck-multicoretests-util 0.5 (latest)

The Util module contains a number of reusable functions handy for multicore testing.

val repeat : int -> ('a -> bool) -> 'a -> bool

repeat num prop iterates a property prop num times. The function stops early and returns false if just one of the iterations returns false. This is handy if the property outcome is non-determistic, for example, if it depends on scheduling.

exception Timeout

exception raised by prop_timeout and fork_prop_with_timeout.

val prop_timeout : int -> ('a -> 'b) -> 'a -> 'b

prop_timeout s prop returns a property working as prop that times out and raises Timeout after s seconds.

val fork_prop_with_timeout : int -> ('a -> bool) -> 'a -> bool

fork_prop_with_timeout s prop tests a property in a separate process and times out and raises Timeout after s seconds, like prop_timeout s prop. This is handy if the tested code can segfault or loop infinitely.

val print_vertical : ?fig_indent:int -> ('a -> string) -> 'a list -> string

print_vertical pr cmds returns a string representing a sequential trace. Optional fig_indent indicates how many spaces it should be indented (default: 3 spaces).

val print_triple_vertical : 
  ?fig_indent:int ->
  ?res_width:int ->
  ?center_prefix:bool ->
  ('a -> string) ->
  ('a list * 'a list * 'a list) ->
  string

print_triple_vertical pr (xs,ys,zs) returns a string representing a parallel trace, with xs printed first, and then ys and zs printed in parallel. Optional fig_indent indicates how many spaces it should be indented (default: 10 spaces). Optional res_width specifies the reserved width for printing each list entry (default: 20 chars). Optional center_prefix centers the sequential prefix if true (the default) and otherwise left-adjust it.

val protect : ('a -> 'b) -> 'a -> ('b, exn) Stdlib.result

protect f turns an exception throwing function into a result returning function.

module Pp : sig ... end

Pretty-printing combinators that generate valid OCaml syntax for common types along with combinators for user-defined types

module Equal : sig ... end

Equality combinators for common types

package qcheck-multicoretests-util