test: Move delay skipping to test_pre_run()

This allows delays to be skipped in sandbox tests. Move it to the
common pre-init function.

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

include/test/ut.h

@@ -356,6 +356,17 @@ void ut_silence_console(struct unit_test_state *uts);
  */
 void ut_unsilence_console(struct unit_test_state *uts);
 
+/**
+ * ut_set_skip_delays() - Sets whether delays should be skipped
+ *
+ * Normally functions like mdelay() cause U-Boot to wait for a while. This
+ * allows all such delays to be skipped on sandbox, to speed up tests
+ *
+ * @uts: Test state (in case in future we want to keep state here)
+ * @skip_delays: true to skip delays, false to process them normally
+ */
+void ut_set_skip_delays(struct unit_test_state *uts, bool skip_delays);
+
 /**
  * test_pre_run() - Handle any preparation needed to run a test
  *

test/dm/test-dm.c

@@ -78,8 +78,6 @@ static int dm_do_test(struct unit_test_state *uts, struct unit_test *test,
 
 	ut_assertok(test_post_run(uts, test));
 
-	state_set_skip_delays(false);
-
 	ut_assertok(dm_test_destroy(uts));
 
 	return 0;

test/test-main.c

@@ -30,6 +30,8 @@ static int do_autoprobe(struct unit_test_state *uts)
 
 int test_pre_run(struct unit_test_state *uts, struct unit_test *test)
 {
+	ut_set_skip_delays(uts, false);
+
 	uts->start = mallinfo();
 
 	if (test->flags & UT_TESTF_SCAN_PDATA)

test/ut.c

@@ -133,3 +133,10 @@ void ut_unsilence_console(struct unit_test_state *uts)
 {
 	gd->flags &= ~(GD_FLG_SILENT | GD_FLG_RECORD);
 }
+
+void ut_set_skip_delays(struct unit_test_state *uts, bool skip_delays)
+{
+#ifdef CONFIG_SANDBOX
+	state_set_skip_delays(skip_delays);
+#endif
+}