Tests: added ASGI HTTP applications.

test/python/delayed/asgi.py

@@ -0,0 +1,51 @@
+import asyncio
+
+async def application(scope, receive, send):
+    assert scope['type'] == 'http'
+
+    body = b''
+    while True:
+        m = await receive()
+        body += m.get('body', b'')
+        if not m.get('more_body', False):
+            break
+
+    headers = scope.get('headers', [])
+
+    def get_header(n, v=None):
+        for h in headers:
+            if h[0] == n:
+                return h[1]
+        return v
+
+    parts = int(get_header(b'x-parts', 1))
+    delay = int(get_header(b'x-delay', 0))
+
+    loop = asyncio.get_event_loop()
+
+    async def sleep(n):
+        future = loop.create_future()
+        loop.call_later(n, future.set_result, None)
+        await future
+
+    await send({
+        'type': 'http.response.start',
+        'status': 200,
+        'headers': [
+            (b'content-length', str(len(body)).encode()),
+        ]
+    })
+
+    if not body:
+        await sleep(delay)
+        return
+
+    step = int(len(body) / parts)
+    for i in range(0, len(body), step):
+        await send({
+            'type': 'http.response.body',
+            'body': body[i : i + step],
+            'more_body': True,
+        })
+
+        await sleep(delay)