test: Avoid misleading diagnostic when some tests are skipped

If we have 7 test-cases, of which we ran 3 and skipped 4, then it's
misleading to say "7 tests passed". Diagnose this as
"3 tests passed (4 skipped)" instead.

We can either skip tests by putting a specific test name on the test
command-line, or programmatically (for example the fd-passing test is
always skipped on Windows, because Windows cannot implement Unix
fd-passing).

Resolves: https://gitlab.freedesktop.org/dbus/dbus/-/issues/363
Signed-off-by: Simon McVittie <smcv@collabora.com>

diff --git a/dbus/dbus-test-tap.c b/dbus/dbus-test-tap.c
index 46738de72c489b1d19e5abc92c08ff03f0073ee7..3e763d4b108588b0be72b2acdcf65aadc677faf0 100644 (file)
--- a/dbus/dbus-test-tap.c
+++ b/dbus/dbus-test-tap.c
@@ -39,6 +39,7 @@
 #include <stdlib.h>
 
 static unsigned int failures = 0;
+static unsigned int skipped = 0;
 static unsigned int tap_test_counter = 0;
 
 /*
@@ -148,6 +149,7 @@ _dbus_test_skip (const char *format,
   va_list ap;
 
   printf ("ok %u # SKIP ", ++tap_test_counter);
+  ++skipped;
   va_start (ap, format);
   vprintf (format, ap);
   va_end (ap);
@@ -194,10 +196,14 @@ _dbus_test_check_memleaks (const char *test_name)
 int
 _dbus_test_done_testing (void)
 {
+  _dbus_assert (skipped <= tap_test_counter);
+
   if (failures == 0)
-    _dbus_test_diag ("%u tests passed", tap_test_counter);
+    _dbus_test_diag ("%u tests passed (%d skipped)",
+                     tap_test_counter - skipped, skipped);
   else
-    _dbus_test_diag ("%u/%u tests failed", failures, tap_test_counter);
+    _dbus_test_diag ("%u/%u tests failed (%d skipped)",
+                     failures, tap_test_counter - skipped, skipped);
 
   printf ("1..%u\n", tap_test_counter);
   fflush (stdout);