Skip to content
Projects
Groups
Snippets
Help
Loading...
Help
Support
Keyboard shortcuts
?
Submit feedback
Contribute to GitLab
Sign in / Register
Toggle navigation
A
Actor Framework
Project overview
Project overview
Details
Activity
Releases
Repository
Repository
Files
Commits
Branches
Tags
Contributors
Graph
Compare
Issues
0
Issues
0
List
Boards
Labels
Milestones
Merge Requests
0
Merge Requests
0
CI / CD
CI / CD
Pipelines
Jobs
Schedules
Operations
Operations
Metrics
Environments
Analytics
Analytics
CI / CD
Repository
Value Stream
Wiki
Wiki
Snippets
Snippets
Members
Members
Collapse sidebar
Close sidebar
Activity
Graph
Create a new issue
Jobs
Commits
Issue Boards
Open sidebar
cpp-libs
Actor Framework
Commits
4a97de85
Commit
4a97de85
authored
Aug 21, 2015
by
Dominik Charousset
Browse files
Options
Browse Files
Download
Email Patches
Plain Diff
Add new unit test for brokers
parent
d79f2095
Changes
1
Hide whitespace changes
Inline
Side-by-side
Showing
1 changed file
with
262 additions
and
0 deletions
+262
-0
libcaf_io/test/http_broker.cpp
libcaf_io/test/http_broker.cpp
+262
-0
No files found.
libcaf_io/test/http_broker.cpp
0 → 100644
View file @
4a97de85
/******************************************************************************
* ____ _ _____ *
* / ___| / \ | ___| C++ *
* | | / _ \ | |_ Actor *
* | |___ / ___ \| _| Framework *
* \____/_/ \_|_| *
* *
* Copyright (C) 2011 - 2015 *
* Dominik Charousset <dominik.charousset (at) haw-hamburg.de> *
* *
* Distributed under the terms and conditions of the BSD 3-Clause License or *
* (at your option) under the terms and conditions of the Boost Software *
* License 1.0. See accompanying files LICENSE and LICENSE_ALTERNATIVE. *
* *
* If you did not receive a copy of the license files, see *
* http://opensource.org/licenses/BSD-3-Clause and *
* http://www.boost.org/LICENSE_1_0.txt. *
******************************************************************************/
#include "caf/config.hpp"
#define CAF_SUITE io_http_broker
#include "caf/test/unit_test.hpp"
#include <algorithm>
#include "caf/all.hpp"
#include "caf/io/all.hpp"
#include "caf/experimental/stateful_actor.hpp"
using
std
::
cout
;
using
std
::
cerr
;
using
std
::
endl
;
using
namespace
caf
;
using
namespace
caf
::
io
;
namespace
{
constexpr
char
http_valid_get
[]
=
"GET / HTTP/1.1"
;
constexpr
char
http_get
[]
=
"GET / HTTP/1.1
\r\n
"
"Host: localhost
\r\n
"
"Connection: close
\r\n
"
"Accept: text/plain
\r\n
"
"User-Agent: CAF/0.14
\r\n
"
"Accept-Language: en-US
\r\n
"
"
\r\n
"
;
constexpr
char
http_ok
[]
=
"HTTP/1.1 200 OK
\r\n
"
"Content-Type: text/plain
\r\n
"
"Connection: close
\r\n
"
"Transfer-Encoding: chunked
\r\n
"
"
\r\n
"
"d
\r\n
"
"Hi there! :)
\r\n
"
"
\r\n
"
"0
\r\n
"
"
\r\n
"
"
\r\n
"
;
constexpr
char
http_error
[]
=
"HTTP/1.1 404 Not Found
\r\n
"
"Connection: close
\r\n
"
"
\r\n
"
;
constexpr
char
newline
[
2
]
=
{
'\r'
,
'\n'
};
enum
parser_state
{
receive_new_line
,
receive_continued_line
,
receive_second_newline_half
};
struct
http_state
{
http_state
(
abstract_broker
*
self
)
:
self_
(
self
)
{
// nop
}
~
http_state
()
{
aout
(
self_
)
<<
"http worker finished with exit reason: "
<<
self_
->
planned_exit_reason
()
<<
endl
;
}
std
::
vector
<
std
::
string
>
lines
;
parser_state
ps
=
receive_new_line
;
abstract_broker
*
self_
;
};
using
http_broker
=
caf
::
experimental
::
stateful_actor
<
http_state
,
broker
>
;
behavior
http_worker
(
http_broker
*
self
,
connection_handle
hdl
)
{
// tell network backend to receive any number of bytes between 1 and 1024
self
->
configure_read
(
hdl
,
receive_policy
::
at_most
(
1024
));
return
{
[
=
](
const
new_data_msg
&
msg
)
{
assert
(
!
msg
.
buf
.
empty
());
assert
(
msg
.
handle
==
hdl
);
// extract lines from received buffer
auto
&
lines
=
self
->
state
.
lines
;
auto
i
=
msg
.
buf
.
begin
();
auto
e
=
msg
.
buf
.
end
();
// search position of first newline in data chunk
auto
nl
=
std
::
search
(
i
,
e
,
std
::
begin
(
newline
),
std
::
end
(
newline
));
// store whether we are continuing a previously started line
auto
append_to_last_line
=
self
->
state
.
ps
==
receive_continued_line
;
// check whether our last chunk ended between \r and \n
if
(
self
->
state
.
ps
==
receive_second_newline_half
)
{
if
(
msg
.
buf
.
front
()
==
'\n'
)
{
// simply skip this character
++
i
;
}
}
// read line by line from our data chunk
do
{
if
(
append_to_last_line
)
{
append_to_last_line
=
false
;
auto
&
back
=
lines
.
back
();
back
.
insert
(
back
.
end
(),
i
,
nl
);
}
else
{
lines
.
emplace_back
(
i
,
nl
);
}
// if our last search didn't found a newline, we're done
if
(
nl
!=
e
)
{
// skip newline and seek the next one
i
=
nl
+
sizeof
(
newline
);
nl
=
std
::
search
(
i
,
e
,
std
::
begin
(
newline
),
std
::
end
(
newline
));
}
}
while
(
nl
!=
e
);
// store current state of our parser
if
(
msg
.
buf
.
back
()
==
'\r'
)
{
self
->
state
.
ps
=
receive_second_newline_half
;
self
->
state
.
lines
.
pop_back
();
// drop '\r' from our last read line
}
else
if
(
msg
.
buf
.
back
()
==
'\n'
)
{
self
->
state
.
ps
=
receive_new_line
;
// we've got a clean cut
}
else
{
self
->
state
.
ps
=
receive_continued_line
;
// interrupted in the middle
}
// we don't need to check for completion in any intermediate state
if
(
self
->
state
.
ps
!=
receive_new_line
)
return
;
// we have received the HTTP header if we have an empty line at the end
if
(
lines
.
size
()
>
1
&&
lines
.
back
().
empty
())
{
auto
&
out
=
self
->
wr_buf
(
hdl
);
// we only look at the first line in our example and reply with our
// OK message if we receive exactly "GET / HTTP/1.1", otherwise
// we send a 404 HTTP response
if
(
lines
.
front
()
==
http_valid_get
)
out
.
insert
(
out
.
end
(),
std
::
begin
(
http_ok
),
std
::
end
(
http_ok
));
else
out
.
insert
(
out
.
end
(),
std
::
begin
(
http_error
),
std
::
end
(
http_error
));
// write data and close connection
self
->
flush
(
hdl
);
self
->
quit
();
}
},
[
=
](
const
connection_closed_msg
&
)
{
self
->
quit
();
},
others
>>
[
=
]
{
aout
(
self
)
<<
"unexpected: "
<<
to_string
(
self
->
current_message
())
<<
endl
;
}
};
}
behavior
server
(
broker
*
self
)
{
aout
(
self
)
<<
"server up and running"
<<
endl
;
return
{
[
=
](
const
new_connection_msg
&
ncm
)
{
aout
(
self
)
<<
"fork on new connection"
<<
endl
;
auto
worker
=
self
->
fork
(
http_worker
,
ncm
.
handle
);
},
others
>>
[
=
]
{
aout
(
self
)
<<
"unexpected: "
<<
to_string
(
self
->
current_message
())
<<
endl
;
}
};
}
class
fixture
{
public:
fixture
()
{
// note: the middleman will take ownership of mpx_, but using
// this pointer is safe at any point before calling `shutdown`
mpx_
=
new
network
::
test_multiplexer
;
set_middleman
(
mpx_
);
// spawn the actor-under-test
aut_
=
spawn_io
(
server
);
// assign the acceptor handle to the AUT
aut_ptr_
=
static_cast
<
abstract_broker
*>
(
actor_cast
<
abstract_actor
*>
(
aut_
));
mpx_
->
assign_tcp_doorman
(
aut_ptr_
,
acceptor_
);
// "open" a new connection to our server
mpx_
->
add_pending_connect
(
acceptor_
,
connection_
);
mpx_
->
assign_tcp_scribe
(
aut_ptr_
,
connection_
);
mpx_
->
accept_connection
(
acceptor_
);
}
~
fixture
()
{
anon_send_exit
(
aut_
,
exit_reason
::
kill
);
// run the exit message explicitly, since we do not invoke any "IO"
// from this point on that would trigger the exit message implicitly
mpx_
->
exec_runnable
();
await_all_actors_done
();
shutdown
();
}
// helper class for a nice-and-easy "mock(...).expect(...)" syntax
class
mock_t
{
public:
mock_t
(
fixture
*
thisptr
)
:
this_
(
thisptr
)
{
// nop
}
mock_t
(
const
mock_t
&
)
=
default
;
mock_t
&
expect
(
const
std
::
string
&
what
)
{
auto
&
buf
=
this_
->
mpx_
->
output_buffer
(
this_
->
connection_
);
CAF_REQUIRE
((
buf
.
size
()
>=
what
.
size
()));
CAF_REQUIRE
((
std
::
equal
(
buf
.
begin
(),
buf
.
begin
()
+
what
.
size
(),
what
.
begin
()));
buf
.
erase
(
buf
.
begin
(),
buf
.
begin
()
+
what
.
size
()));
return
*
this
;
}
fixture
*
this_
;
};
// mocks some input for our AUT and allows to
// check the output for this operation
mock_t
mock
(
const
char
*
what
)
{
std
::
vector
<
char
>
buf
;
for
(
char
c
=
*
what
++
;
c
!=
'\0'
;
c
=
*
what
++
)
buf
.
push_back
(
c
);
mpx_
->
virtual_send
(
connection_
,
std
::
move
(
buf
));
return
{
this
};
}
actor
aut_
;
abstract_broker
*
aut_ptr_
;
network
::
test_multiplexer
*
mpx_
;
accept_handle
acceptor_
=
accept_handle
::
from_int
(
1
);
connection_handle
connection_
=
connection_handle
::
from_int
(
1
);
};
}
// namespace <anonymous>
CAF_TEST_FIXTURE_SCOPE
(
http_tests
,
fixture
)
CAF_TEST
(
valid_response
)
{
// write a GET message and expect an OK message as result
mock
(
http_get
).
expect
(
http_ok
);
}
CAF_TEST
(
invalid_response
)
{
// write a GET with invalid path and expect a 404 message as result
mock
(
"GET /kitten.gif HTTP/1.1
\r\n\r\n
"
).
expect
(
http_error
);
}
CAF_TEST_FIXTURE_SCOPE_END
()
Write
Preview
Markdown
is supported
0%
Try again
or
attach a new file
Attach a file
Cancel
You are about to add
0
people
to the discussion. Proceed with caution.
Finish editing this message first!
Cancel
Please
register
or
sign in
to comment