Provide CLI support for runnning specifications

tests/test_cli.py

@@ -0,0 +1,52 @@
+import logging
+
+from click.testing import CliRunner
+from connexion import App, __version__
+from connexion.cli import main
+
+import pytest
+from conftest import FIXTURES_FOLDER
+from mock import MagicMock
+
+
+@pytest.fixture()
+def mock_app_run(monkeypatch):
+    test_server = MagicMock(wraps=App(__name__))
+    test_server.run = MagicMock(return_value=True)
+    test_app = MagicMock(return_value=test_server)
+    monkeypatch.setattr('connexion.cli.App', test_app)
+    return test_server
+
+
+def test_run_missing_spec():
+    runner = CliRunner()
+    result = runner.invoke(main, ['run'], catch_exceptions=False)
+    assert "Missing argument" in result.output
+
+
+def test_run_simple_spec(mock_app_run):
+    spec_file = str(FIXTURES_FOLDER / 'simple/swagger.yaml')
+    default_port = 5000
+    default_server = 'gevent'
+    runner = CliRunner()
+    result = runner.invoke(main,
+                           ['run', spec_file],
+                           catch_exceptions=False)
+
+    mock_app_run.run.assert_called_with(port=default_port, server=default_server)
+    assert 'Running at' in result.output
+
+
+def test_run_in_debug_mode(mock_app_run, monkeypatch):
+    spec_file = str(FIXTURES_FOLDER / 'simple/swagger.yaml')
+
+    logging_config = MagicMock(name='connexion.cli.logging.basicConfig')
+    monkeypatch.setattr('connexion.cli.logging.basicConfig',
+                        logging_config)
+
+    runner = CliRunner()
+    result = runner.invoke(main,
+                           ['run', spec_file, '-d'],
+                           catch_exceptions=False)
+
+    logging_config.assert_called_with(level=logging.DEBUG)