Changes between Initial Version and Version 1 of Layout Test Protocol

Timestamp:

Jul 8, 2014, 10:01:13 AM (11 years ago)

Author:

dfarler@apple.com

Comment:

--

Layout Test Protocol

@@ +1 @@
+The Layout Test Protocol (LTP) is a line-based protocol for requesting layout tests from DumpRenderTree (DRT) or WebKitTestRunner (WKTR). Requests come into DRT/WKTR from standard input or into a socket. Responses leave DRT/WKTR via standard output/error or into a socket. The protocol works similarly to HTTP, where a content type and length are sent before blocks of data. A response consists of multiple chunks, all of which are optional:
+
+- RenderTree: The textual representation of the render tree
+- Image: An image capture of the web view
+- Audio: An audio capture during the test
+- Error: Other textual output corresponding to standard error
+- DumpMalloc: Number of committed virtual memory bytes
+
+Requests
+
+{{{
+Request -> [\n]+ Newline
+}}}
+
+Responses
+
+
+{{{
+Response -> RenderTree Image Audio Error DumpMalloc EOF
+ContentLength: -> 'Content-Length: %lu' Newline
+EOF -> '#EOF' Newline
+Newline -> '\n'
+
+RenderTree -> ContentTypeText ContentLength Data
+ContentTypeText -> 'Content-type: text/plain' Newline
+Data -> bytes
+
+Image -> ContentTypePNG ContentLength Data
+ContentTypePNG -> 'Content-type: image/png' Newline
+
+Audio -> ContentTypeAudio ContentLength Data
+ContentTypeAudio -> 'Content-type: audio/wav' newline
+
+Error -> ContentTypeText ContentLength Text
+
+DumpMalloc -> 'DumpMalloc: %li'
+
+}}}