util.roles: Return nil if the role has no explicit policy (fixes inheritance)
Previously, if the first inherited role had no opinion, it returned false and
prevented further consultation of other inherited roles.
This bug was found thanks to the implementation of missing test cases
identified through mutation testing.
local http_parser = require "net.http.parser";
local sha1 = require "util.hashes".sha1;
local parser_input_bytes = 3;
local function CRLF(s)
return (s:gsub("\n", "\r\n"));
end
local function test_stream(stream, expect)
local success_cb = spy.new(function (packet)
assert.is_table(packet);
if packet.body ~= false then
assert.is_equal(expect.body, packet.body);
end
end);
local parser = http_parser.new(success_cb, error, stream:sub(1,4) == "HTTP" and "client" or "server")
for chunk in stream:gmatch("."..string.rep(".?", parser_input_bytes-1)) do
parser:feed(chunk);
end
assert.spy(success_cb).was_called(expect.count or 1);
end
describe("net.http.parser", function()
describe("parser", function()
it("should handle requests with no content-length or body", function ()
test_stream(
CRLF[[
GET / HTTP/1.1
Host: example.com
]],
{
body = "";
}
);
end);
it("should handle responses with empty body", function ()
test_stream(
CRLF[[
HTTP/1.1 200 OK
Content-Length: 0
]],
{
body = "";
}
);
end);
it("should handle simple responses", function ()
test_stream(
CRLF[[
HTTP/1.1 200 OK
Content-Length: 7
Hello
]],
{
body = "Hello\r\n", count = 1;
}
);
end);
it("should handle chunked encoding in responses", function ()
test_stream(
CRLF[[
HTTP/1.1 200 OK
Transfer-Encoding: chunked
1
H
1
e
2
ll
1
o
0
]],
{
body = "Hello", count = 2;
}
);
end);
it("should handle a stream of responses", function ()
test_stream(
CRLF[[
HTTP/1.1 200 OK
Content-Length: 5
Hello
HTTP/1.1 200 OK
Transfer-Encoding: chunked
1
H
1
e
2
ll
1
o
0
]],
{
body = "Hello", count = 3;
}
);
end);
end);
it("should handle large chunked responses", function ()
local data = io.open("spec/inputs/http/httpstream-chunked-test.txt", "rb"):read("*a");
-- Just a sanity check... text editors and things may mess with line endings, etc.
assert.equal("25930f021785ae14053a322c2dbc1897c3769720", sha1(data, true), "test data malformed");
test_stream(data, {
body = string.rep("~", 11085), count = 2;
});
end);
end);