ci: fix get_all_apps for multi targets

tools/ci/idf_pytest/script.py

@@ -55,6 +55,8 @@ def get_pytest_cases(
     apps: t.Optional[t.List[App]] = None,
 ) -> t.List[PytestCase]:
     """
+    Return the list of test cases
+
     For single-dut test cases, `target` could be
     - [TARGET], e.g. `esp32`, to get the test cases for the given target
     - or `single_all`, to get all single-dut test cases
@@ -143,9 +145,12 @@ def get_all_apps(
     :param ignore_app_dependencies_filepatterns: ignore app dependencies filepatterns
     :return: tuple of test-required apps and non-test-related apps
     """
-    all_apps = find_apps(
+    # target could be comma separated list
+    all_apps: t.List[App] = []
+    for _t in set(target.split(',')):
+        all_apps.extend(find_apps(
             paths,
-        target,
+            _t,
             build_system=IdfCMakeApp,
             recursive=True,
             build_dir='build_@t_@w',
@@ -160,7 +165,7 @@ def get_all_apps(
             modified_files=modified_files,
             ignore_app_dependencies_filepatterns=ignore_app_dependencies_filepatterns,
             include_skipped_apps=True,
-    )
+        ))
 
     pytest_cases = get_pytest_cases(
         paths,

tools/ci/idf_pytest/tests/test_get_all_apps.py

@@ -75,11 +75,22 @@ def test_foo(dut):
 """
         )
 
-    test_related_apps, non_test_related_apps = get_all_apps([str(work_dirpath)], target='all')
+    test_related_apps, non_test_related_apps = get_all_apps([str(work_dirpath)], target='esp32s2,esp32s3')
+    assert len(test_related_apps) == 2
+    assert len(non_test_related_apps) == 0
 
-    assert len(test_related_apps) == 3  # 32, s2, s3
+    test_related_apps, non_test_related_apps = get_all_apps([str(work_dirpath)], target='esp32,esp32s3,esp32')
+    assert len(test_related_apps) == 2
+    assert len(non_test_related_apps) == 0
+
+    test_related_apps, non_test_related_apps = get_all_apps([str(work_dirpath)], target='all')
+    assert len(test_related_apps) == 3
     assert len(non_test_related_apps) == len(SUPPORTED_TARGETS) - 3
 
+    test_related_apps, non_test_related_apps = get_all_apps([str(work_dirpath)], target='foo,bar')
+    assert len(test_related_apps) == 0
+    assert len(non_test_related_apps) == 0
+
 
 def test_get_all_apps_modified_pytest_script(work_dirpath: Path) -> None:
     create_project('foo', work_dirpath)