support/testing: add new test for python-jmespath

Add a new rudimentary test inspired by the examples from jmespath's
README file ([1]).

[1]: https://github.com/jmespath/jmespath.py/blob/develop/README.rst

Signed-off-by: Raphaël Mélotte <raphael.melotte@mind.be>
[Thomas: add entry in DEVELOPERS file]
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>

DEVELOPERS

@@ -2435,8 +2435,10 @@ F:	package/python-jmespath/
 F:	package/python-pymupdf/
 F:	package/python-rsa/
 F:	package/python-s3transfer/
+F:	support/testing/tests/package/sample_python_jmespath.py
 F:	support/testing/tests/package/sample_python_rsa.py
 F:	support/testing/tests/package/sample_python_s3transfer.py
+F:	support/testing/tests/package/test_python_jmespath.py
 F:	support/testing/tests/package/test_python_rsa.py
 F:	support/testing/tests/package/test_python_s3transfer.py
 

support/testing/tests/package/sample_python_jmespath.py

@@ -0,0 +1,4 @@
+import jmespath
+expression = jmespath.compile('foo.bar')
+res = expression.search({'foo': {'bar': 'baz'}})
+assert res == "baz", "expression.search failed"

support/testing/tests/package/test_python_jmespath.py

@@ -0,0 +1,12 @@
+from tests.package.test_python import TestPythonPackageBase
+
+
+class TestPythonPy3Jmespath(TestPythonPackageBase):
+    __test__ = True
+    config = TestPythonPackageBase.config + \
+        """
+        BR2_PACKAGE_PYTHON3=y
+        BR2_PACKAGE_PYTHON_JMESPATH=y
+        """
+    sample_scripts = ["tests/package/sample_python_jmespath.py"]
+    timeout = 10