support/testing: add python-crossbar tests

This test invokes "crossbar version" command, that checks all
dependencies found in setup.py files and prints some system related
information.
Add haveged to the target to generate enough entropy so crossbar ->
pynacl -> libsodium don't hang waiting for /dev/random.

Signed-off-by: Yegor Yefremov <yegorslists@googlemail.com>
[Ricardo: move test script to a separate file, remove Python 2 variant,
 add haveged to target to add entropy and avoid hanging]
Signed-off-by: Ricardo Martincoski <ricardo.martincoski@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>

.gitlab-ci.yml

@@ -316,6 +316,7 @@ tests.package.test_python.TestPython2: *runtime_test
 tests.package.test_python.TestPython3: *runtime_test
 tests.package.test_python_autobahn.TestPythonPy2Autobahn: *runtime_test
 tests.package.test_python_autobahn.TestPythonPy3Autobahn: *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
 tests.package.test_python_incremental.TestPythonPy2Incremental: *runtime_test

support/testing/tests/package/sample_python_crossbar.py

@@ -0,0 +1,3 @@
+import crossbar
+
+crossbar.run(["version"])

support/testing/tests/package/test_python_crossbar.py

@@ -0,0 +1,14 @@
+from tests.package.test_python import TestPythonPackageBase
+
+
+class TestPythonPy3Crossbar(TestPythonPackageBase):
+    __test__ = True
+    # use haveged to generate enough entropy so crossbar -> pynacl -> libsodium don't hang waiting for /dev/random
+    config = TestPythonPackageBase.config + \
+        """
+        BR2_PACKAGE_PYTHON3=y
+        BR2_PACKAGE_PYTHON_CROSSBAR=y
+        BR2_PACKAGE_HAVEGED=y
+        """
+    sample_scripts = ["tests/package/sample_python_crossbar.py"]
+    timeout = 60