scripts: tests: Blackbox test expansion - tooling

Adds tests related to the Twister tooling:
* -j, --jobs
*     --force-toolchain

Signed-off-by: Lukasz Mrugala <lukaszx.mrugala@intel.com>

scripts/tests/twister_blackbox/test_tooling.py

@@ -0,0 +1,86 @@
+#!/usr/bin/env python3
+# Copyright (c) 2024 Intel Corporation
+#
+# SPDX-License-Identifier: Apache-2.0
+"""
+Blackbox tests for twister's command line functions related to Twister's tooling.
+"""
+# pylint: disable=duplicate-code
+
+import importlib
+import mock
+import os
+import pytest
+import sys
+import json
+
+from conftest import ZEPHYR_BASE, TEST_DATA, sample_filename_mock, testsuite_filename_mock
+from twisterlib.testplan import TestPlan
+
+
+class TestTooling:
+    @classmethod
+    def setup_class(cls):
+        apath = os.path.join(ZEPHYR_BASE, 'scripts', 'twister')
+        cls.loader = importlib.machinery.SourceFileLoader('__main__', apath)
+        cls.spec = importlib.util.spec_from_loader(cls.loader.name, cls.loader)
+        cls.twister_module = importlib.util.module_from_spec(cls.spec)
+
+    @classmethod
+    def teardown_class(cls):
+        pass
+
+    @pytest.mark.parametrize(
+        'jobs',
+        ['1', '2'],
+        ids=['single job', 'two jobs']
+    )
+    @mock.patch.object(TestPlan, 'TESTSUITE_FILENAME', testsuite_filename_mock)
+    def test_jobs(self, out_path, jobs):
+        test_platforms = ['qemu_x86', 'frdm_k64f']
+        path = os.path.join(TEST_DATA, 'tests', 'dummy', 'agnostic', 'group2')
+        args = ['-i', '--outdir', out_path, '-T', path] + \
+               ['--jobs', jobs] + \
+               [val for pair in zip(
+                   ['-p'] * len(test_platforms), test_platforms
+               ) for val in pair]
+
+        with mock.patch.object(sys, 'argv', [sys.argv[0]] + args), \
+                pytest.raises(SystemExit) as sys_exit:
+            self.loader.exec_module(self.twister_module)
+
+        with open(os.path.join(out_path, 'twister.log')) as f:
+            log = f.read()
+            assert f'JOBS: {jobs}' in log
+
+        assert str(sys_exit.value) == '0'
+
+    @mock.patch.object(TestPlan, 'SAMPLE_FILENAME', sample_filename_mock)
+    def test_force_toolchain(self, out_path):
+        # nsim_vpx5 is one of the rare platforms that do not support the zephyr toolchain
+        test_platforms = ['nsim/nsim_vpx5']
+        path = os.path.join(TEST_DATA, 'samples', 'hello_world')
+        args = ['-i', '--outdir', out_path, '-T', path, '-y'] + \
+               ['--force-toolchain'] + \
+               [] + \
+               [val for pair in zip(
+                   ['-p'] * len(test_platforms), test_platforms
+               ) for val in pair]
+
+        with mock.patch.object(sys, 'argv', [sys.argv[0]] + args), \
+                pytest.raises(SystemExit) as sys_exit:
+            self.loader.exec_module(self.twister_module)
+
+        assert str(sys_exit.value) == '0'
+
+        with open(os.path.join(out_path, 'testplan.json')) as f:
+            j = json.load(f)
+        filtered_j = [
+            (ts['platform'], ts['name'], tc['identifier'], tc['status']) \
+                for ts in j['testsuites'] \
+                for tc in ts['testcases']
+        ]
+
+        # Normally, board not supporting our toolchain would be filtered, so we check against that
+        assert len(filtered_j) == 1
+        assert filtered_j[0][3] != 'filtered'