support/testing: new python-pydantic-settings runtime test

Signed-off-by: Marcus Hoffmann <buildroot@bubu1.eu>
Signed-off-by: Arnout Vandecappelle <arnout@rnout.be>
(cherry picked from commit 5eb46878bd)
Signed-off-by: Thomas Perale <thomas.perale@mind.be>

DEVELOPERS

@@ -2259,10 +2259,12 @@ F:	package/python-ruamel-yaml-clib/
 F:	package/python-waitress/
 F:	support/testing/tests/package/test_python_fastapi.py
 F:	support/testing/tests/package/test_python_pydantic.py
+F:	support/testing/tests/package/test_python_pydantic_settings.py
 F:	support/testing/tests/package/test_python_ruamel_yaml.py
 F:	support/testing/tests/package/test_python_waitress.py
 F:	support/testing/tests/package/sample_python_fastapi.py
 F:	support/testing/tests/package/sample_python_pydantic.py
+F:	support/testing/tests/package/sample_python_pydantic_settings.py
 F:	support/testing/tests/package/sample_python_ruamel_yaml.py
 
 N:	Marek Belisko <marek.belisko@open-nandra.com>

support/testing/tests/package/sample_python_pydantic_settings.py

@@ -0,0 +1,8 @@
+from pydantic_settings import BaseSettings
+
+
+class Settings(BaseSettings):
+    api_key: str
+
+
+assert Settings().api_key == "ABCD1234"

support/testing/tests/package/test_python_pydantic_settings.py

@@ -0,0 +1,35 @@
+import os
+
+from tests.package.test_python import TestPythonPackageBase
+
+
+class TestPythonPy3PydanticSettings(TestPythonPackageBase):
+    __test__ = True
+    config = """
+        BR2_arm=y
+        BR2_cortex_a9=y
+        BR2_ARM_ENABLE_NEON=y
+        BR2_ARM_ENABLE_VFP=y
+        BR2_TOOLCHAIN_EXTERNAL=y
+        BR2_PACKAGE_PYTHON3=y
+        BR2_PACKAGE_PYTHON_PYDANTIC_SETTINGS=y
+        BR2_TARGET_ROOTFS_CPIO=y
+        # BR2_TARGET_ROOTFS_TAR is not set
+        """
+    sample_scripts = ["tests/package/sample_python_pydantic_settings.py"]
+    timeout = 30
+
+    def login(self):
+        cpio_file = os.path.join(self.builddir, "images", "rootfs.cpio")
+        self.emulator.boot(
+            arch="armv7", kernel="builtin", options=["-initrd", cpio_file]
+        )
+        self.emulator.login()
+
+    def run_sample_scripts(self):
+        """Run sample script while setting an environment variable"""
+        for script in self.sample_scripts:
+            cmd = (
+                "api_key=ABCD1234 " + self.interpreter + " " + os.path.basename(script)
+            )
+            self.assertRunOk(cmd, timeout=self.timeout)