ext,tests: Fix --figures flag when using ./main.py list

Now the "tests/main.py" script will accept the `--fixtures` flag when
using the `list` command. This will only list the fixtures needed.

To have this implemented `__str__` for the `Fixture` class has been
implemented.

Change-Id: I4bba26e923c8b0001163726637f2e48c801e92b1

ext/testlib/fixture.py

@@ -27,6 +27,7 @@
 # Authors: Sean Wilson
 
 import testlib.helper as helper
+from testlib.configuration import constants
 
 
 class SkipException(Exception):
@@ -79,6 +80,9 @@ class Fixture(object):
     def teardown(self, testitem):
         pass
 
+    def __str__(self):
+        return f"{self.name} fixture"
+
     def set_global(self):
         self._is_global = True
 

ext/testlib/main.py

@@ -253,6 +253,8 @@ def do_list():
         qrunner.list_tests()
     elif configuration.config.all_tags:
         qrunner.list_tags()
+    elif configuration.config.fixtures:
+        qrunner.list_fixtures()
     else:
         qrunner.list_suites()
         qrunner.list_tests()

ext/testlib/query.py

@@ -55,6 +55,13 @@ class QueryRunner(object):
             for test in suite:
                 log.test_log.message(test.uid, machine_readable=True)
 
+    def list_fixtures(self):
+        log.test_log.message(terminal.separator())
+        log.test_log.message('Listing all Test Fixtures.', bold=True)
+        log.test_log.message(terminal.separator())
+        for fixture in self.schedule.all_fixtures():
+            log.test_log.message(fixture, machine_readable=True)
+
     def list_suites(self):
         log.test_log.message(terminal.separator())
         log.test_log.message("Listing all Test Suites.", bold=True)