Some suites need things to be set up before they can run. Add a way to
declare an init function using the UNIT_TEST_INIT() macro. The init
function is just like any other test, but is always placed first so that
it runs before all the other test functions in the suite.

Add an uninit function as well, to clean up after the test.

Signed-off-by: Simon Glass <sjg@chromium.org>

Show the average duration of a test, so we can keep track of how it is
trending. Report the suite with the longest average test to encourage
people to improve it.

Add a function to update the stats based on the results from a single
suite and another to show the summary information.

Make this optional, since sandbox's SPL tests do not have a timer driver
and people may want to print results without times.

Signed-off-by: Simon Glass <sjg@chromium.org>

Show the time taken by each test suite with 'ut all' and the total time
for all suites.

Take care to remove any sandbox time-offset from the values.

Fix the comment-format on timer_test_add_offset() while we are here.

Signed-off-by: Simon Glass <sjg@chromium.org>

With 'ut all' multiple test suites are run. Add a way to collect totals
and show them at the end.

Signed-off-by: Simon Glass <sjg@chromium.org>

This is useful information and is not always the same as the 'count' arg
to ut_run_list() so add it as a separate stat.

Signed-off-by: Simon Glass <sjg@chromium.org>

Use a struct to hold the stats, since we also want to have the same
stats for all runs as we have for each suite.

Signed-off-by: Simon Glass <sjg@chromium.org>

Tests which create a new bloblist overwrite the existing one in sandbox.
Provide a flag for tests to declare this behaviour. Save and restore the
bloblist pointer so that other tests remain unaffected.

Note that when sandbox is running normally, the bloblist has been
relocated to high in memory. The existing bloblist tests create a new
bloblist low in memory, so they do not conflict.

Correct a build error on coreboot by using accessors for gd->bloblist:
Signed-off-by: Simon Glass <sjg@chromium.org>

The _REC suffix doesn't add much. Really what we want to know is whether
the test uses the console, so rename this flag.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Mattijs Korpershoek <mkorpershoek@baylibre.com>

The UT_TESTF_ macros read as 'unit test test flags' which is not right.
Rename to UTF ('unit test flags').

This has the benefit of being shorter, which helps keep UNIT_TEST()
declarations on a single line.

Give the enum a name and reference it from the UNIT_TEST() macros while
we are here.

Signed-off-by: Simon Glass <sjg@chromium.org>

Most tests don't want these and they can create a lot of noise. Add a way
to disable them. Use that in tests, with a flag provided to enable them
for tests that need this feature.

Signed-off-by: Simon Glass <sjg@chromium.org>