twister: testplan: Detect duplicates on --no-detailed-test-id

Detect duplicate TestSuites on load, and raise error when it happens
with `--no-detailed-test-id` option which shortens TestSuite name
excluding the test project path prefix, thus increasing chances
for duplicates. Without this check, only the last duplicated
test configuration was selected while others silently ignored.

Signed-off-by: Dmitrii Golovanov <dmitrii.golovanov@intel.com>

scripts/pylib/twister/twisterlib/testplan.py

@@ -188,6 +188,8 @@ class TestPlan:
         num = self.add_testsuites(testsuite_filter=self.run_individual_testsuite)
         if num == 0:
             raise TwisterRuntimeError("No test cases found at the specified location...")
+        if self.load_errors:
+            raise TwisterRuntimeError(f"Found {self.load_errors} errors loading {num} test configurations.")
 
         self.find_subtests()
         # get list of scenarios we have parsed into one list
@@ -197,9 +199,6 @@ class TestPlan:
         self.report_duplicates()
         self.parse_configuration(config_file=self.env.test_config)
 
-        if self.load_errors:
-            raise TwisterRuntimeError("Errors while loading configurations")
-
         # handle quarantine
         ql = self.options.quarantine_list
         qv = self.options.quarantine_verify
@@ -605,10 +604,18 @@ class TestPlan:
                             suite.add_subcases(suite_dict, subcases, ztest_suite_names)
                         else:
                             suite.add_subcases(suite_dict)
+
                         if testsuite_filter:
                             scenario = os.path.basename(suite.name)
                             if suite.name and (suite.name in testsuite_filter or scenario in testsuite_filter):
                                 self.testsuites[suite.name] = suite
+                        elif suite.name in self.testsuites:
+                            msg = f"test suite '{suite.name}' in '{suite.yamlfile}' is already added"
+                            if suite.yamlfile == self.testsuites[suite.name].yamlfile:
+                                logger.debug(f"Skip - {msg}")
+                            else:
+                                msg = f"Duplicate {msg} from '{self.testsuites[suite.name].yamlfile}'"
+                                raise TwisterRuntimeError(msg)
                         else:
                             self.testsuites[suite.name] = suite
 

scripts/tests/twister/test_testplan.py

@@ -1309,19 +1309,35 @@ def test_testplan_get_all_tests():
 
 
 TESTDATA_9 = [
-    ([], False, 7),
-    ([], True, 5),
-    (['good_test/dummy.common.1', 'good_test/dummy.common.2', 'good_test/dummy.common.3'], False, 3),
-    (['good_test/dummy.common.1', 'good_test/dummy.common.2', 'good_test/dummy.common.3'], True, 0),
+    ([], False, True, 11, 1),
+    ([], False, False, 7, 2),
+    ([], True, False, 9, 1),
+    ([], True, True, 9, 1),
+    ([], True, False, 9, 1),
+    (['good_test/dummy.common.1', 'good_test/dummy.common.2', 'good_test/dummy.common.3'], False, True, 3, 1),
+    (['good_test/dummy.common.1', 'good_test/dummy.common.2',
+      'duplicate_test/dummy.common.1', 'duplicate_test/dummy.common.2'], False, True, 4, 1),
+    (['dummy.common.1', 'dummy.common.2'], False, False, 2, 1),
+    (['good_test/dummy.common.1', 'good_test/dummy.common.2', 'good_test/dummy.common.3'], True, True, 0, 1),
 ]
 
 @pytest.mark.parametrize(
-    'testsuite_filter, use_alt_root, expected_suite_count',
+    'testsuite_filter, use_alt_root, detailed_id, expected_suite_count, expected_errors',
     TESTDATA_9,
-    ids=['no testsuite filter', 'no testsuite filter, alt root',
-         'testsuite filter', 'testsuite filter, alt root']
+    ids=[
+        'no testsuite filter, detailed id',
+        'no testsuite filter, short id',
+        'no testsuite filter, alt root, detailed id',
+        'no filter, alt root, detailed id',
+        'no filter, alt root, short id',
+        'testsuite filter',
+        'testsuite filter and valid duplicate',
+        'testsuite filter, short id and duplicate',
+        'testsuite filter, alt root',
+    ]
 )
-def test_testplan_add_testsuites(tmp_path, testsuite_filter, use_alt_root, expected_suite_count):
+def test_testplan_add_testsuites(tmp_path, testsuite_filter, use_alt_root, detailed_id,
+                                 expected_errors, expected_suite_count):
     # tmp_path
     # ├ tests  <- test root
     # │ ├ good_test
@@ -1330,6 +1346,8 @@ def test_testplan_add_testsuites(tmp_path, testsuite_filter, use_alt_root, expec
     # │ │ └ testcase.yaml
     # │ ├ good_sample
     # │ │ └ sample.yaml
+    # │ ├ duplicate_test
+    # │ │ └ testcase.yaml
     # │ └ others
     # │   └ other.txt
     # └ other_tests  <- alternate test root
@@ -1381,6 +1399,25 @@ tests:
     samplefile_1 = tmp_good_sample_dir / 'sample.yaml'
     samplefile_1.write_text(samplecase_yaml_1)
 
+    tmp_duplicate_test_dir = tmp_test_root_dir / 'duplicate_test'
+    tmp_duplicate_test_dir.mkdir()
+    # The duplicate needs to have the same number of tests as these configurations
+    # can be read either with duplicate_test first, or good_test first, so number
+    # of selected tests needs to be the same in both situations.
+    testcase_yaml_4 = """\
+tests:
+  dummy.common.1:
+    build_on_all: true
+  dummy.common.2:
+    build_on_all: true
+  dummy.common.3:
+    build_on_all: true
+  dummy.special:
+    build_on_all: false
+"""
+    testfile_4 = tmp_duplicate_test_dir / 'testcase.yaml'
+    testfile_4.write_text(testcase_yaml_4)
+
     tmp_other_dir = tmp_test_root_dir / 'others'
     tmp_other_dir.mkdir()
     _ = tmp_other_dir / 'other.txt'
@@ -1402,6 +1439,7 @@ tests:
 
     env = mock.Mock(
         test_roots=[tmp_test_root_dir],
+        options=mock.Mock(detailed_test_id=detailed_id),
         alt_config_root=[tmp_alt_test_root_dir] if use_alt_root else []
     )
 
@@ -1410,6 +1448,7 @@ tests:
     res = testplan.add_testsuites(testsuite_filter)
 
     assert res == expected_suite_count
+    assert testplan.load_errors == expected_errors
 
 
 def test_testplan_str():