cogl/tests: Use less verbose run-tests.sh on single tests run by meson

Use less verbose output when run-tests.sh is running only a test and we're
requested for less verbose output.

Also write the test name first of running it.

https://gitlab.gnome.org/GNOME/mutter/merge_requests/442

cogl/tests/conform/meson.build

@@ -124,6 +124,7 @@ foreach test_target: cogl_conformance_tests
   test_name = '-'.join(name_parts)
   test(test_name, cogl_run_tests,
     suite: ['cogl', 'cogl/conform'],
+    env: ['RUN_TESTS_QUIET=1'],
     args: [
       cogl_config_env,
       libmutter_cogl_test_conformance,

cogl/tests/run-tests.sh

@@ -32,6 +32,7 @@ EXIT=0
 MISSING_FEATURE="WARNING: Missing required feature";
 KNOWN_FAILURE="WARNING: Test is known to fail";
 
+if [ -z "$RUN_TESTS_QUIET" ]; then
   echo "Key:"
   echo "ok = Test passed"
   echo "n/a = Driver is missing a feature required for the test"
@@ -39,6 +40,7 @@ echo "FAIL = Unexpected failure"
   echo "FIXME = Test failed, but it was an expected failure"
   echo "PASS! = Unexpected pass"
   echo ""
+fi
 
 get_status()
 {
@@ -88,6 +90,11 @@ run_test()
   fi
 }
 
+if [ -z "$UNIT_TESTS" ]; then
+  echo Missing unit-tests file or names
+  exit 1
+fi
+
 TITLE_FORMAT="%35s"
 printf "$TITLE_FORMAT" "Test"
 
@@ -101,19 +108,18 @@ if test "$HAVE_GLES2" -eq 1; then
 fi
 
 echo ""
-echo ""
-
-if [ -z "$UNIT_TESTS" ]; then
-  echo Missing unit-tests file or names
-  exit 1
-fi
 
 if [ -f "$UNIT_TESTS" ]; then
   UNIT_TESTS="$(cat $UNIT_TESTS)"
 fi
 
+if [ -z "$RUN_TESTS_QUIET" ] || [ "$(echo "$UNIT_TESTS" | wc -w )" -gt 1 ]; then
+  echo ""
+fi
+
 for test in $UNIT_TESTS
 do
+  printf $TITLE_FORMAT "$test:"
   export COGL_DEBUG=
 
   if test "$HAVE_GL" -eq 1; then
@@ -139,7 +145,6 @@ do
     run_test "$test" gles2
   fi
 
-  printf $TITLE_FORMAT "$test:"
   if test "$HAVE_GL" -eq 1; then
     printf "$GL_FORMAT" \
       "$(get_status "$gl_glsl_result")" \

cogl/tests/unit/meson.build

@@ -32,6 +32,7 @@ foreach test_target: cogl_unit_tests
   test_name = '-'.join(test_target.split('_'))
   test(test_name, cogl_run_tests,
     suite: ['cogl', 'cogl/unit'],
+    env: ['RUN_TESTS_QUIET=1'],
     args: [
       cogl_config_env,
       libmutter_cogl_test_unit,