Added tests for generateschema management command. (#6442)

tests/test_generateschema.py

@@ -0,0 +1,88 @@
+from __future__ import unicode_literals
+
+import pytest
+from django.conf.urls import url
+from django.core.management import call_command
+from django.test import TestCase
+from django.test.utils import override_settings
+from django.utils import six
+
+from rest_framework.compat import coreapi
+from rest_framework.utils import formatting, json
+from rest_framework.views import APIView
+
+
+class FooView(APIView):
+    def get(self, request):
+        pass
+
+
+urlpatterns = [
+    url(r'^$', FooView.as_view())
+]
+
+
+@override_settings(ROOT_URLCONF='tests.test_generateschema')
+@pytest.mark.skipif(not coreapi, reason='coreapi is not installed')
+class GenerateSchemaTests(TestCase):
+    """Tests for management command generateschema."""
+
+    def setUp(self):
+        self.out = six.StringIO()
+
+    @pytest.mark.skipif(six.PY2, reason='PyYAML unicode output is malformed on PY2.')
+    def test_renders_default_schema_with_custom_title_url_and_description(self):
+        expected_out = """info:
+                            description: Sample description
+                            title: SampleAPI
+                            version: ''
+                          openapi: 3.0.0
+                          paths:
+                            /:
+                              get:
+                                operationId: list
+                          servers:
+                          - url: http://api.sample.com/
+                          """
+        call_command('generateschema',
+                     '--title=SampleAPI',
+                     '--url=http://api.sample.com',
+                     '--description=Sample description',
+                     stdout=self.out)
+
+        self.assertIn(formatting.dedent(expected_out), self.out.getvalue())
+
+    def test_renders_openapi_json_schema(self):
+        expected_out = {
+            "openapi": "3.0.0",
+            "info": {
+                "version": "",
+                "title": "",
+                "description": ""
+            },
+            "servers": [
+                {
+                    "url": ""
+                }
+            ],
+            "paths": {
+                "/": {
+                    "get": {
+                        "operationId": "list"
+                    }
+                }
+            }
+        }
+        call_command('generateschema',
+                     '--format=openapi-json',
+                     stdout=self.out)
+        out_json = json.loads(self.out.getvalue())
+
+        self.assertDictEqual(out_json, expected_out)
+
+    def test_renders_corejson_schema(self):
+        expected_out = """{"_type":"document","":{"list":{"_type":"link","url":"/","action":"get"}}}"""
+        call_command('generateschema',
+                     '--format=corejson',
+                     stdout=self.out)
+        self.assertIn(expected_out, self.out.getvalue())