Allow to specify subdomain and/or url_scheme in app.test_request_context()

flask/app.py

@@ -1776,7 +1776,11 @@ class Flask(_PackageBoundObject):
     def test_request_context(self, *args, **kwargs):
         """Creates a WSGI environment from the given values (see
         :func:`werkzeug.test.EnvironBuilder` for more information, this
-        function accepts the same arguments).
+        function accepts the same arguments plus two additional).
+
+        Additional arguments (might be used only if `base_url` is not specified):
+        :param subdomain: subdomain in case of testing requests handled by blueprint
+        :param url_scheme: a URL scheme (default scheme is http)
         """
         from flask.testing import make_test_environ_builder
         builder = make_test_environ_builder(self, *args, **kwargs)

flask/testing.py

@@ -20,13 +20,24 @@ except ImportError:
     from urlparse import urlsplit as url_parse
 
 
-def make_test_environ_builder(app, path='/', base_url=None, *args, **kwargs):
+def make_test_environ_builder(app, path='/', base_url=None, subdomain=None,
+                              url_scheme=None, *args, **kwargs):
     """Creates a new test builder with some application defaults thrown in."""
-    http_host = app.config.get('SERVER_NAME')
-    app_root = app.config.get('APPLICATION_ROOT')
+    assert not (base_url or subdomain or url_scheme) \
+           or (base_url is not None) != bool(subdomain or url_scheme), \
+            'If "base_url" parameter is passed in, pass of ' \
+            '"subdomain" and/or "url_scheme" is meaningless.'
+
     if base_url is None:
+        http_host = app.config.get('SERVER_NAME')
+        app_root = app.config.get('APPLICATION_ROOT')
+        if subdomain:
+            http_host = '%s.%s' % (subdomain, http_host)
+        if url_scheme is None:
+            url_scheme = 'http'
+
         url = url_parse(path)
-        base_url = 'http://%s/' % (url.netloc or http_host or 'localhost')
+        base_url = '%s://%s/' % (url_scheme, url.netloc or http_host or 'localhost')
         if app_root:
             base_url += app_root.lstrip('/')
         if url.netloc:

flask/testsuite/testing.py

@@ -45,6 +45,38 @@ class TestToolsTestCase(FlaskTestCase):
             rv = c.get('/')
             self.assert_equal(rv.data, b'http://localhost/')
 
+    def test_specify_url_scheme(self):
+        app = flask.Flask(__name__)
+        app.testing = True
+        @app.route('/')
+        def index():
+            return flask.request.url
+
+        ctx = app.test_request_context(url_scheme='https')
+        self.assert_equal(ctx.request.url, 'https://localhost/')
+        with app.test_client() as c:
+            rv = c.get('/', url_scheme='https')
+            self.assert_equal(rv.data, b'https://localhost/')
+
+    def test_blueprint_with_subdomain(self):
+        app = flask.Flask(__name__)
+        app.testing = True
+        app.config['SERVER_NAME'] = 'example.com:1234'
+        app.config['APPLICATION_ROOT'] = '/foo'
+
+        bp = flask.Blueprint('company', __name__, subdomain='xxx')
+        @bp.route('/')
+        def index():
+            return flask.request.url
+        app.register_blueprint(bp)
+
+        ctx = app.test_request_context('/', subdomain='xxx')
+        self.assert_equal(ctx.request.url, 'http://xxx.example.com:1234/foo/')
+        self.assert_equal(ctx.request.blueprint, bp.name)
+        with app.test_client() as c:
+            rv = c.get('/', subdomain='xxx')
+            self.assert_equal(rv.data, b'http://xxx.example.com:1234/foo/')
+
     def test_redirect_keep_session(self):
         app = flask.Flask(__name__)
         app.secret_key = 'testing'