External WPT tests for Client hints

This CL includes the test for "Accept-CH" header. If the origin includes "Accept-CH" in the response header, then the browser should include the specified client hints in the HTTP request headers for the resources contained in that page. Bug:817049 Change-Id: Id74193ab7a1cc3c4b03d66e080c43c64a6fcfbb2
web-platform-tests · Mar 8, 2018 · 41ec865 · 41ec865
1 parent fbf57c4
commit 41ec865
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diff --git a/client-hints/accept_ch.https.html b/client-hints/accept_ch.https.html
@@ -0,0 +1,30 @@
+<html>
+<body>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+
+<script>
+
+// If the response for the HTML file contains "Accept-CH: device-memory" in
+// the response headers, then the browser should attach device-memory client
+// hint in the HTTP request headers. Test this functionality by fetching an
+// XHR from this page. The response headers for this page include
+// "Accept-CH: device-memory".
+//
+// echo_device_memory_header_received.py includes "device-memory-received" in
+// the response headers only if the request included "device-memory" in the
+// headers.
+
+  promise_test(t => {
+  return fetch("/client-hints/echo_device_memory_header_received.py").then(r => {
+    assert_equals(r.status, 200)
+    // Verify that the browser included "device-memory" in the headers when
+    // fetching the XHR.
+    assert_true(r.headers.has("device-memory-received"));
+  });
+}, "Accept-CH header test");
+
+</script>
+
+</body>
+</html>
diff --git a/client-hints/accept_ch.https.html.headers b/client-hints/accept_ch.https.html.headers
@@ -0,0 +1 @@
+Accept-CH: device-memory
diff --git a/client-hints/echo_device_memory_header_received.py b/client-hints/echo_device_memory_header_received.py
@@ -0,0 +1,8 @@
+def main(request, response):
+    """
+    Simple handler that sets a response header based on if device-memory
+    request header was received or not.
+    """
+
+    if "device-memory" in request.headers:
+            response.headers.set("device-memory-received", "true")