Tweak a selftest blacklist to exercise more of the blacklisting code

In the process, corrected an inaccurate XFAIL message (an XPASS is
normally an error, unless blacklisting ignores it so turns it into a
BPASS). Added the missing .tap file to its expected output.
Documented the similarity to the silent/ selftest.

Task-number: QTPM-1385
Change-Id: Id74a1353d54af2f3bfe2c764e33c1f051958ab21
Reviewed-by: Jędrzej Nowacki <jedrzej.nowacki@qt.io>

2 files changed, 14 insertions, 5 deletions

diff --git a/tests/auto/testlib/selftests/blacklisted/BLACKLIST b/tests/auto/testlib/selftests/blacklisted/BLACKLIST
index 36b7699cbd..a923c11416 100644
--- a/tests/auto/testlib/selftests/blacklisted/BLACKLIST
+++ b/tests/auto/testlib/selftests/blacklisted/BLACKLIST
@@ -1,12 +1,20 @@
-[pass]
+obscure # no such platform; is ignored
 *
+
+[pass]
+!*
+
 [skip]
 *
+
 [fail]
 *
-[xpass]
-*
+
 [xfail]
 *
+
+[xpass]
+*
+
 [messages]
 *
diff --git a/tests/auto/testlib/selftests/blacklisted/tst_blacklisted.cpp b/tests/auto/testlib/selftests/blacklisted/tst_blacklisted.cpp
index 8578752e22..90520385ec 100644
--- a/tests/auto/testlib/selftests/blacklisted/tst_blacklisted.cpp
+++ b/tests/auto/testlib/selftests/blacklisted/tst_blacklisted.cpp
@@ -45,7 +45,8 @@ private slots:
     void messages();
 };
 
-// All the tests below have been blacklisted in blacklisted/BLACKLIST
+// All the tests below except pass() have been blacklisted in blacklisted/BLACKLIST
+// Contrast with ../silent/, for the same tests without blacklisting but with -silent
 
 void tst_Blacklisted::pass()
 {
@@ -64,7 +65,7 @@ void tst_Blacklisted::fail()
 
 void tst_Blacklisted::xfail()
 {
-    QEXPECT_FAIL("", "This test should XFAIL then BFAIL", Abort);
+    QEXPECT_FAIL("", "This test should XFAIL then BPASS", Abort);
     QVERIFY(false);
 }