[POSTMAN] Add Samples GitHub workflow (#17412)

* Add Python tests

* Add workflow to verify Postman samples

* Correct path

.github/workflows/samples-postman.yaml

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+name: Samples Postman
+
+on:
+  pull_request:
+    paths:
+      - samples/schema/postman-collection/python/**
+      - .github/workflows/samples-postman.yaml
+jobs:
+  build:
+    name: Test Python client
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        sample:
+          # schema
+          - samples/schema/postman-collection
+        python-version:
+          - "3.11"
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/setup-python@v5
+        with:
+          python-version: ${{ matrix.python-version }}
+      - name: Install
+        working-directory: ${{ matrix.sample }}
+        run: |
+          pip install -r python/requirements.txt
+          pip install -r python/test-requirements.txt
+      - name: Test
+        working-directory: ${{ matrix.sample }}
+        run: python -m pytest

samples/schema/postman-collection/python/requirements.txt

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+python_dateutil >= 2.5.3
+setuptools >= 21.0.0
+pydantic >= 2

samples/schema/postman-collection/python/setup.cfg

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+[flake8]
+max-line-length=99

samples/schema/postman-collection/python/test-requirements.txt

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+pytest~=7.1.3
+pytest-cov>=2.8.1
+pytest-randomly>=3.12.0

samples/schema/postman-collection/python/test/test_info.py

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+"""
+    Testing Postman generator output
+"""
+from __future__ import absolute_import
+
+import unittest
+
+import json
+
+
+class TestInfo(unittest.TestCase):
+
+    def setUp(self):
+        with open('./postman.json', 'r') as file:
+            self.json_data = json.load(file)
+
+    def tearDown(self):
+        pass
+
+    def test_collection_name(self):
+        self.assertEqual(self.json_data['info']['name'], 'Sample project')
+
+
+if __name__ == '__main__':
+    unittest.main()

samples/schema/postman-collection/python/test/test_parameters.py

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+"""
+    Testing Postman generator output
+"""
+from __future__ import absolute_import
+
+import unittest
+
+import json
+
+
+class TestParameters(unittest.TestCase):
+
+    def setUp(self):
+        with open('./postman.json', 'r') as file:
+            self.json_data = json.load(file)
+
+    def tearDown(self):
+        pass
+
+    def test_request_parameter_description(self):
+        # request url
+        request = self.json_data['item'][2]['item'][1]['item'][0]['request']
+        self.assertEqual(request['url']['raw'], '{{baseUrl}}/users/')
+        # first query parameter
+        self.assertEqual(request['url']['query'][0]['key'], 'pUserId')
+        self.assertEqual(request['url']['query'][0]['value'], '888')
+        self.assertEqual(request['url']['query'][0]['description'], 'Query Id.')
+        self.assertEqual(request['url']['query'][0]['disabled'], False)
+
+
+if __name__ == '__main__':
+    unittest.main()