Add tests for server-example. Fixes #18.

Add tests for server

noxfile.py

@@ -22,6 +22,7 @@ def _run_tests(session):
         'py.test',
         '--quiet',
         'tests',
+        'server-example',
         *session.posargs
     )
 
@@ -33,24 +34,27 @@ def lint(session):
     serious code quality issues.
     """
     session.install('flake8')
-    session.run('flake8',
-                'pypadges,tests')
+    session.run('flake8', 'pybadges')
+    session.run('flake8', 'tests')
+    session.run('flake8', 'server-example')
 
 
 @nox.session
 def unit(session):
     """Run the unit test suite."""
     session.install('-e', '.[dev]')
+    session.install('-r', 'server-example/requirements-test.txt')
     _run_tests(session)
 
 
-@nox.session(python=['3.4', '3.5', '3.6', '3.7'])
+@nox.session(python=['3.4', '3.5', '3.6', '3.7', '3.8'])
 @nox.parametrize('install',
                  ['Jinja2==2.9.0', 'Pillow==5.0.0', 'requests==2.9.0', 'xmldiff==2.4'])
 def compatibility(session, install):
     """Run the unit test suite with each support library and Python version."""
 
     session.install('-e', '.[dev]')
+    session.install('-r', 'server-example/requirements-test.txt')
     session.install(install)
     _run_tests(session)
 

server-example/requirements-test.txt

@@ -0,0 +1,2 @@
+-r requirements.txt
+pytest

server-example/test_app.py

@@ -0,0 +1,30 @@
+# Copyright 2020 The pybadge Authors
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     https://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+"Tests for app"
+
+
+import pytest
+
+import app
+
+@pytest.fixture
+def client():
+    with app.app.test_client() as client:
+        yield client
+
+def test_image(client):
+    rv = client.get("/")
+    assert b'build' in rv.data
+    assert b'passing' in rv.data