Restructure project to add test support

* separated drf_swagger and testproj modules, moved both out of project root
* added testing support via pytest and tox
* enabled Travis CI
* integrated coverage & Coveralls

tests/conftest.py

@@ -0,0 +1,30 @@
+import pytest
+from ruamel import yaml
+
+from drf_swagger import openapi, codecs
+from drf_swagger.generators import OpenAPISchemaGenerator
+
+
+@pytest.fixture
+def generator():
+    return OpenAPISchemaGenerator(
+        info=openapi.Info("Test generator", "v1"),
+        version="v2",
+    )
+
+
+@pytest.fixture
+def codec_json():
+    return codecs.OpenAPICodecJson(['flex', 'ssv'])
+
+
+@pytest.fixture
+def codec_yaml():
+    return codecs.OpenAPICodecYaml(['ssv', 'flex'])
+
+
+@pytest.fixture
+def swagger_dict():
+    swagger = generator().get_schema(None, True)
+    json_bytes = codec_yaml().encode(swagger)
+    return yaml.safe_load(json_bytes.decode('utf-8'))

tests/test_schema_generator.py

@@ -0,0 +1,51 @@
+import json
+
+from ruamel import yaml
+
+from drf_swagger import openapi, codecs
+from drf_swagger.generators import OpenAPISchemaGenerator
+
+import pytest
+
+
+def validate_schema(swagger):
+    from flex.core import parse as validate_flex
+    from swagger_spec_validator.validator20 import validate_spec as validate_ssv
+
+    validate_flex(swagger)
+    validate_ssv(swagger)
+    
+    
+def test_schema_generates_without_errors(generator):
+    generator.get_schema(None, True)
+
+
+def test_schema_is_valid(generator, codec_yaml):
+    swagger = generator.get_schema(None, True)
+    codec_yaml.encode(swagger)
+
+
+def test_invalid_schema_fails(codec_json):
+    bad_generator = OpenAPISchemaGenerator(
+        info=openapi.Info(
+            "Test generator", "v1",
+            contact=openapi.Contact(name=69, email=[])
+        ),
+        version="v2",
+    )
+
+    swagger = bad_generator.get_schema(None, True)
+    with pytest.raises(codecs.SwaggerValidationError):
+        codec_json.encode(swagger)
+
+
+def test_json_codec_roundtrip(codec_json, generator):
+    swagger = generator.get_schema(None, True)
+    json_bytes = codec_json.encode(swagger)
+    validate_schema(json.loads(json_bytes.decode('utf-8')))
+
+
+def test_yaml_codec_roundtrip(codec_yaml, generator):
+    swagger = generator.get_schema(None, True)
+    json_bytes = codec_yaml.encode(swagger)
+    validate_schema(yaml.safe_load(json_bytes.decode('utf-8')))

tests/test_schema_structure.py

@@ -0,0 +1,24 @@
+def test_paths_not_empty(swagger_dict):
+    assert bool(swagger_dict['paths'])
+
+
+def test_appropriate_status_codes(swagger_dict):
+    snippets_list = swagger_dict['paths']['/snippets/']
+    assert '200' in snippets_list['get']['responses']
+    assert '201' in snippets_list['post']['responses']
+    snippets_detail = swagger_dict['paths']['/snippets/{id}/']
+    assert '200' in snippets_detail['get']['responses']
+    assert '200' in snippets_detail['put']['responses']
+    assert '200' in snippets_detail['patch']['responses']
+    assert '204' in snippets_detail['delete']['responses']
+
+
+def test_operation_docstrings(swagger_dict):
+    snippets_list = swagger_dict['paths']['/snippets/']
+    assert snippets_list['get']['description'] == "SnippetList classdoc"
+    assert snippets_list['post']['description'] == "post method docstring"
+    snippets_detail = swagger_dict['paths']['/snippets/{id}/']
+    assert snippets_detail['get']['description'] == "SnippetDetail classdoc"
+    assert snippets_detail['put']['description'] == "put class docstring"
+    assert snippets_detail['patch']['description'] == "patch method docstring"
+    assert snippets_detail['delete']['description'] == "delete method docstring"