support/testing: add python-constantly tests

Add a simple test case to check the basic usage by creating a class with
two constants.

Signed-off-by: Ricardo Martincoski <ricardo.martincoski@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>

.gitlab-ci.yml

@@ -330,6 +330,8 @@ tests.package.test_python_cbor.TestPythonPy2Cbor: *runtime_test
 tests.package.test_python_cbor.TestPythonPy3Cbor: *runtime_test
 tests.package.test_python_click.TestPythonPy2Click: *runtime_test
 tests.package.test_python_click.TestPythonPy3Click: *runtime_test
+tests.package.test_python_constantly.TestPythonPy2Constantly: *runtime_test
+tests.package.test_python_constantly.TestPythonPy3Constantly: *runtime_test
 tests.package.test_python_crossbar.TestPythonPy3Crossbar: *runtime_test
 tests.package.test_python_cryptography.TestPythonPy2Cryptography: *runtime_test
 tests.package.test_python_cryptography.TestPythonPy3Cryptography: *runtime_test

support/testing/tests/package/sample_python_constantly.py

@@ -0,0 +1,19 @@
+from constantly import ValueConstant, Values
+
+
+class RESULT(Values):
+    OK = ValueConstant(0)
+    FAIL = ValueConstant(-1)
+
+    @classmethod
+    def get(cls, rc):
+        if rc == 0:
+            return cls.OK
+        else:
+            return cls.FAIL
+
+
+print(list(RESULT.iterconstants()))
+assert(RESULT.OK < RESULT.FAIL)
+assert(RESULT.OK.value > RESULT.FAIL.value)
+assert(RESULT.get(-5) == RESULT.FAIL)

support/testing/tests/package/test_python_constantly.py

@@ -0,0 +1,21 @@
+from tests.package.test_python import TestPythonPackageBase
+
+
+class TestPythonPy2Constantly(TestPythonPackageBase):
+    __test__ = True
+    config = TestPythonPackageBase.config + \
+        """
+        BR2_PACKAGE_PYTHON=y
+        BR2_PACKAGE_PYTHON_CONSTANTLY=y
+        """
+    sample_scripts = ["tests/package/sample_python_constantly.py"]
+
+
+class TestPythonPy3Constantly(TestPythonPackageBase):
+    __test__ = True
+    config = TestPythonPackageBase.config + \
+        """
+        BR2_PACKAGE_PYTHON3=y
+        BR2_PACKAGE_PYTHON_CONSTANTLY=y
+        """
+    sample_scripts = ["tests/package/sample_python_constantly.py"]