If true, a verbose report of the property being tested, the
failing return value, and the arguments provoking that failure is emitted
prior to the start of the shrinking search.

Controls whether property trials should be reported via clojure.test/report.
Valid values include:

* false - no reporting of trials (default)
* a function - will be passed a clojure.test/report-style map containing
:clojure.test.check/property and :clojure.test.check/trial slots
* true - provides quickcheck-style trial reporting (dots) via
`trial-report-dots`

(Note that all reporting requires running `quick-check` within the scope of a
clojure.test run (via `test-ns`, `test-all-vars`, etc.)

Reporting functions offered by clojure.test.check include `trial-report-dots` and
`trial-report-periodic` (which prints more verbose trial progress information
every `*trial-report-period*` milliseconds.

Milliseconds between reports emitted by `trial-report-periodic`.

Defines a new clojure.test test var that uses `quick-check` to verify
[property] with the given [args] (should be a sequence of generators),
[default-times] times by default.  You can call the function defined as [name]
with no arguments to trigger this test directly (i.e., without starting a
wider clojure.test run), with a single argument that will override
[default-times], or with a map containing any of the keys
[:seed :max-size :num-tests].

Intended to be bound as the value of `*report-trials*`; will emit a single
dot every 1000 trials reported.

Intended to be bound as the value of `*report-trials*`; will emit a verbose
status every `*trial-report-period*` milliseconds, like this one:

Passing trial 3286 / 5000 for (your-test-var-name-here) (:)