http2: improve error handling, reliability and tests

PR-URL: #134
Reviewed-By: Matteo Collina <[email protected]>

lib/internal/errors.js

@@ -100,12 +100,19 @@ E('ERR_HTTP2_INVALID_INFO_STATUS',
   'Invalid informational status code');
 E('ERR_HTTP2_INVALID_PSEUDOHEADER',
   (name) => `"${name}" is not a valid HTTP/2 pseudoheader`);
+E('ERR_HTTP2_INVALID_SESSION', 'The session has been destroyed');
+E('ERR_HTTP2_INVALID_SETTING_VALUE',
+  (settings) => `An invalid HTTP/2 setting value was specified: ${settings}`);
+E('ERR_HTTP2_OUT_OF_STREAMS',
+  'No stream ID is available because maximum stream ID has been reached');
 E('ERR_HTTP2_SOCKET_BOUND',
   'The socket is already bound to an Http2Session');
 E('ERR_HTTP2_STATUS_INVALID',
   (code) => `Invalid status code: ${code}`);
 E('ERR_HTTP2_STATUS_101',
   'HTTP status code 101 (Switching Protocols) is forbidden in HTTP/2');
+E('ERR_HTTP2_STREAM_CLOSED', 'The stream is already closed');
+E('ERR_HTTP2_STREAM_SELF_DEPENDENCY', 'A stream cannot depend on itself');
 E('ERR_HTTP2_UNSUPPORTED_PROTOCOL',
   (protocol) => `protocol "${protocol}" is unsupported.`);
 E('ERR_INVALID_ARG_TYPE', invalidArgType);
@@ -132,6 +139,7 @@ E('ERR_IPC_DISCONNECTED', 'IPC channel is already disconnected');
 E('ERR_IPC_ONE_PIPE', 'Child process can have only one IPC pipe');
 E('ERR_IPC_SYNC_FORK', 'IPC cannot be used with synchronous forks');
 E('ERR_MISSING_ARGS', missingArgs);
+E('ERR_OUTOFMEMORY', 'Out of memory');
 E('ERR_STDERR_CLOSE', 'process.stderr cannot be closed');
 E('ERR_STDOUT_CLOSE', 'process.stdout cannot be closed');
 E('ERR_UNKNOWN_BUILTIN_MODULE', (id) => `No such built-in module: ${id}`);