feat: add support for running via uvicorn; wutta webapp command

tests/cli/test_webapp.py

@@ -0,0 +1,104 @@
+# -*- coding: utf-8; -*-
+
+from unittest.mock import MagicMock, patch
+
+from wuttjamaican.testing import ConfigTestCase
+
+from wuttaweb.cli import webapp as mod
+
+
+class TestWebapp(ConfigTestCase):
+
+    def make_context(self, **kwargs):
+        params = {'auto_reload': False}
+        params.update(kwargs.get('params', {}))
+        ctx = MagicMock(params=params)
+        ctx.parent.wutta_config = self.config
+        return ctx
+
+    def test_missing_config_file(self):
+        # nb. our default config has no files, so can test w/ that
+        ctx = self.make_context()
+        with patch.object(mod, 'sys') as sys:
+            sys.exit.side_effect = RuntimeError
+            self.assertRaises(RuntimeError, mod.webapp, ctx)
+            sys.stderr.write.assert_called_once_with("no config files found!\n")
+            sys.exit.assert_called_once_with(1)
+
+    def test_invalid_runner(self):
+
+        # make new config from file, with bad setting
+        path = self.write_file('my.conf', """
+[wutta.web]
+app.runner = bogus
+""")
+        self.config = self.make_config(files=[path])
+
+        ctx = self.make_context()
+        with patch.object(mod, 'sys') as sys:
+            sys.exit.side_effect = RuntimeError
+            self.assertRaises(RuntimeError, mod.webapp, ctx)
+            sys.stderr.write.assert_called_once_with("unknown web app runner: bogus\n")
+            sys.exit.assert_called_once_with(2)
+
+    def test_pserve(self):
+
+        path = self.write_file('my.conf', """
+[wutta.web]
+app.runner = pserve
+""")
+        self.config = self.make_config(files=[path])
+
+        # normal
+        with patch.object(mod, 'pserve') as pserve:
+            ctx = self.make_context()
+            mod.webapp(ctx)
+            pserve.main.assert_called_once_with(argv=['pserve', f'file+ini:{path}'])
+
+        # with reload
+        with patch.object(mod, 'pserve') as pserve:
+            ctx = self.make_context(params={'auto_reload': True})
+            mod.webapp(ctx)
+            pserve.main.assert_called_once_with(argv=['pserve', f'file+ini:{path}', '--reload'])
+
+    def test_uvicorn(self):
+
+        path = self.write_file('my.conf', """
+[wutta.web]
+app.runner = uvicorn
+app.spec = wuttaweb.app:make_wsgi_app
+""")
+        self.config = self.make_config(files=[path])
+
+        orig_import = __import__
+        uvicorn = MagicMock()
+
+        def mock_import(name, *args, **kwargs):
+            if name == 'uvicorn':
+                return uvicorn
+            return orig_import(name, *args, **kwargs)
+
+        # normal
+        with patch('builtins.__import__', side_effect=mock_import):
+            ctx = self.make_context()
+            mod.webapp(ctx)
+            uvicorn.run.assert_called_once_with('wuttaweb.app:make_wsgi_app',
+                                                host='127.0.0.1',
+                                                port=8000,
+                                                reload=False,
+                                                reload_dirs=None,
+                                                factory=False,
+                                                interface='auto')
+
+        # with reload
+        uvicorn.run.reset_mock()
+        with patch('builtins.__import__', side_effect=mock_import):
+            ctx = self.make_context(params={'auto_reload': True})
+            mod.webapp(ctx)
+            uvicorn.run.assert_called_once_with('wuttaweb.app:make_wsgi_app',
+                                                host='127.0.0.1',
+                                                port=8000,
+                                                reload=True,
+                                                reload_dirs=None,
+                                                factory=False,
+                                                interface='auto')