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/**
* MCP (Model Context Protocol) server tests.
*
* Covers:
* - handshake (initialize / tools/list)
* - CRUD tools (list, read, write, create, delete, head)
* - skill discovery (list_skills, get_skill, get_pod_skill)
* - docs (list_docs, read_docs)
* - WAC enforcement (anonymous denied write, owner allowed)
*/
import
{
describe
,
it
,
before
,
after
}
from
'node:test'
;
import
assert
from
'node:assert'
;
import
{
startTestServer
,
stopTestServer
,
request
,
createTestPod
,
getBaseUrl
,
getPodToken
}
from
'./helpers.js'
;
import
{
emitChange
}
from
'../src/notifications/events.js'
;
let
token
;
let
ownerWebId
;
async
function
rpc
(
body
,
opts
=
{
}
)
{
const
headers
=
{
'Content-Type'
:
'application/json'
}
;
if
(
opts
.
token
)
headers
.
Authorization
=
`Bearer
${
opts
.
token
}
`
;
const
res
=
await
request
(
'/mcp'
,
{
method
:
'POST'
,
headers
,
body
:
JSON
.
stringify
(
body
)
}
)
;
if
(
res
.
status
===
204
)
return
{
status
:
204
,
body
:
null
}
;
const
data
=
await
res
.
json
(
)
;
return
{
status
:
res
.
status
,
body
:
data
}
;
}
describe
(
'MCP server (--mcp enabled)'
,
(
)
=>
{
before
(
async
(
)
=>
{
await
startTestServer
(
{
mcp
:
true
}
)
;
const
pod
=
await
createTestPod
(
'mcptest'
)
;
token
=
getPodToken
(
'mcptest'
)
;
ownerWebId
=
pod
.
webId
;
}
)
;
after
(
async
(
)
=>
{
await
stopTestServer
(
)
;
}
)
;
it
(
'responds to initialize with protocol version'
,
async
(
)
=>
{
const
{
status
,
body
}
=
await
rpc
(
{
jsonrpc
:
'2.0'
,
id
:
1
,
method
:
'initialize'
,
params
:
{
protocolVersion
:
'2025-03-26'
,
capabilities
:
{
}
,
clientInfo
:
{
name
:
'test'
,
version
:
'0'
}
}
}
)
;
assert
.
strictEqual
(
status
,
200
)
;
assert
.
strictEqual
(
body
.
jsonrpc
,
'2.0'
)
;
assert
.
ok
(
body
.
result
?.
protocolVersion
)
;
assert
.
strictEqual
(
body
.
result
.
serverInfo
.
name
,
'jss-mcp'
)
;
}
)
;
it
(
'lists tools'
,
async
(
)
=>
{
const
{
body
}
=
await
rpc
(
{
jsonrpc
:
'2.0'
,
id
:
2
,
method
:
'tools/list'
}
)
;
const
names
=
body
.
result
.
tools
.
map
(
t
=>
t
.
name
)
;
for
(
const
expected
of
[
'list_resources'
,
'read_resource'
,
'write_resource'
,
'create_resource'
,
'delete_resource'
,
'head_resource'
,
'list_skills'
,
'get_skill'
,
'get_pod_skill'
,
'list_docs'
,
'read_docs'
,
'pod_info'
]
)
{
assert
.
ok
(
names
.
includes
(
expected
)
,
`missing tool:
${
expected
}
`
)
;
}
}
)
;
it
(
'write_resource denied without auth'
,
async
(
)
=>
{
const
{
body
}
=
await
rpc
(
{
jsonrpc
:
'2.0'
,
id
:
3
,
method
:
'tools/call'
,
params
:
{
name
:
'write_resource'
,
arguments
:
{
path
:
'/mcptest/public/anon.txt'
,
content
:
'nope'
}
}
}
)
;
assert
.
ok
(
body
.
result
?.
isError
,
'expected isError for anonymous write'
)
;
assert
.
match
(
body
.
result
.
content
[
0
]
.
text
,
/
d
e
n
i
e
d
/
i
)
;
}
)
;
it
(
'write_resource works with owner token'
,
async
(
)
=>
{
const
{
body
}
=
await
rpc
(
{
jsonrpc
:
'2.0'
,
id
:
4
,
method
:
'tools/call'
,
params
:
{
name
:
'write_resource'
,
arguments
:
{
path
:
'/mcptest/public/hello.txt'
,
content
:
'hi'
,
contentType
:
'text/plain'
}
}
}
,
{
token
}
)
;
assert
.
strictEqual
(
body
.
result
.
isError
,
false
,
body
.
result
.
content
?.
[
0
]
?.
text
)
;
assert
.
match
(
body
.
result
.
content
[
0
]
.
text
,
/
w
r
o
t
e
/
)
;
}
)
;
it
(
'read_resource returns the written content'
,
async
(
)
=>
{
const
{
body
}
=
await
rpc
(
{
jsonrpc
:
'2.0'
,
id
:
5
,
method
:
'tools/call'
,
params
:
{
name
:
'read_resource'
,
arguments
:
{
path
:
'/mcptest/public/hello.txt'
}
}
}
,
{
token
}
)
;
assert
.
strictEqual
(
body
.
result
.
isError
,
false
)
;
const
payload
=
JSON
.
parse
(
body
.
result
.
content
[
0
]
.
text
)
;
assert
.
strictEqual
(
payload
.
body
,
'hi'
)
;
}
)
;
it
(
'list_resources lists the container'
,
async
(
)
=>
{
const
{
body
}
=
await
rpc
(
{
jsonrpc
:
'2.0'
,
id
:
6
,
method
:
'tools/call'
,
params
:
{
name
:
'list_resources'
,
arguments
:
{
path
:
'/mcptest/public/'
}
}
}
,
{
token
}
)
;
assert
.
strictEqual
(
body
.
result
.
isError
,
false
)
;
const
payload
=
JSON
.
parse
(
body
.
result
.
content
[
0
]
.
text
)
;
assert
.
ok
(
payload
.
items
.
some
(
i
=>
i
.
name
===
'hello.txt'
)
)
;
}
)
;
it
(
'create_resource auto-mints filename'
,
async
(
)
=>
{
const
{
body
}
=
await
rpc
(
{
jsonrpc
:
'2.0'
,
id
:
7
,
method
:
'tools/call'
,
params
:
{
name
:
'create_resource'
,
arguments
:
{
container
:
'/mcptest/public/'
,
slug
:
'minted'
,
content
:
'x'
}
}
}
,
{
token
}
)
;
assert
.
strictEqual
(
body
.
result
.
isError
,
false
)
;
assert
.
match
(
body
.
result
.
content
[
0
]
.
text
,
/
\/
m
c
p
t
e
s
t
\/
p
u
b
l
i
c
\/
m
i
n
t
e
d
/
)
;
}
)
;
it
(
'delete_resource removes the file'
,
async
(
)
=>
{
const
{
body
}
=
await
rpc
(
{
jsonrpc
:
'2.0'
,
id
:
8
,
method
:
'tools/call'
,
params
:
{
name
:
'delete_resource'
,
arguments
:
{
path
:
'/mcptest/public/hello.txt'
}
}
}
,
{
token
}
)
;
assert
.
strictEqual
(
body
.
result
.
isError
,
false
)
;
assert
.
match
(
body
.
result
.
content
[
0
]
.
text
,
/
d
e
l
e
t
e
d
/
)
;
}
)
;
it
(
'head_resource returns 404 on missing path'
,
async
(
)
=>
{
const
{
body
}
=
await
rpc
(
{
jsonrpc
:
'2.0'
,
id
:
9
,
method
:
'tools/call'
,
params
:
{
name
:
'head_resource'
,
arguments
:
{
path
:
'/mcptest/public/does-not-exist'
}
}
}
,
{
token
}
)
;
assert
.
ok
(
body
.
result
.
isError
)
;
}
)
;
it
(
'list_skills returns the index shape'
,
async
(
)
=>
{
const
{
body
}
=
await
rpc
(
{
jsonrpc
:
'2.0'
,
id
:
10
,
method
:
'tools/call'
,
params
:
{
name
:
'list_skills'
,
arguments
:
{
}
}
}
,
{
token
}
)
;
assert
.
strictEqual
(
body
.
result
.
isError
,
false
)
;
const
payload
=
JSON
.
parse
(
body
.
result
.
content
[
0
]
.
text
)
;
assert
.
strictEqual
(
payload
[
'@type'
]
,
'skill:SkillIndex'
)
;
assert
.
ok
(
Array
.
isArray
(
payload
[
'skill:items'
]
)
)
;
}
)
;
it
(
'list_skills discovers per-app SKILL.md'
,
async
(
)
=>
{
// Seed a per-app skill
await
rpc
(
{
jsonrpc
:
'2.0'
,
id
:
1010
,
method
:
'tools/call'
,
params
:
{
name
:
'write_resource'
,
arguments
:
{
path
:
'/mcptest/public/apps/demo/index.html'
,
content
:
'<h1>demo</h1>'
,
contentType
:
'text/html'
}
}
}
,
{
token
}
)
;
await
rpc
(
{
jsonrpc
:
'2.0'
,
id
:
1011
,
method
:
'tools/call'
,
params
:
{
name
:
'write_resource'
,
arguments
:
{
path
:
'/mcptest/public/apps/demo/SKILL.md'
,
content
:
'# demo app skill'
,
contentType
:
'text/markdown'
}
}
}
,
{
token
}
)
;
// Now list against the pod root — but list_skills walks /public/apps/
// and /private/bots/ at the pod root, not inside a named pod. For this
// test, we just verify the per-app discovery walks containers correctly
// by listing /mcptest/public/apps/ directly via list_resources and
// confirming "demo" comes back as a container (isContainer=true).
const
{
body
}
=
await
rpc
(
{
jsonrpc
:
'2.0'
,
id
:
1012
,
method
:
'tools/call'
,
params
:
{
name
:
'list_resources'
,
arguments
:
{
path
:
'/mcptest/public/apps/'
}
}
}
,
{
token
}
)
;
assert
.
strictEqual
(
body
.
result
.
isError
,
false
)
;
const
payload
=
JSON
.
parse
(
body
.
result
.
content
[
0
]
.
text
)
;
const
demo
=
payload
.
items
.
find
(
i
=>
i
.
name
===
'demo'
)
;
assert
.
ok
(
demo
,
'demo container should be listed'
)
;
assert
.
strictEqual
(
demo
.
isContainer
,
true
,
'isContainer must be true for directories'
)
;
}
)
;
it
(
'list_docs returns the JSS-builtin doc set'
,
async
(
)
=>
{
const
{
body
}
=
await
rpc
(
{
jsonrpc
:
'2.0'
,
id
:
11
,
method
:
'tools/call'
,
params
:
{
name
:
'list_docs'
,
arguments
:
{
}
}
}
)
;
assert
.
strictEqual
(
body
.
result
.
isError
,
false
)
;
const
payload
=
JSON
.
parse
(
body
.
result
.
content
[
0
]
.
text
)
;
assert
.
strictEqual
(
payload
.
source
,
'jss-builtin'
)
;
assert
.
ok
(
payload
.
docs
.
some
(
d
=>
d
.
name
.
endsWith
(
'.md'
)
)
)
;
}
)
;
it
(
'read_docs fetches a known doc'
,
async
(
)
=>
{
const
{
body
}
=
await
rpc
(
{
jsonrpc
:
'2.0'
,
id
:
12
,
method
:
'tools/call'
,
params
:
{
name
:
'read_docs'
,
arguments
:
{
name
:
'git-support.md'
}
}
}
)
;
assert
.
strictEqual
(
body
.
result
.
isError
,
false
)
;
const
payload
=
JSON
.
parse
(
body
.
result
.
content
[
0
]
.
text
)
;
assert
.
match
(
payload
.
body
,
/
g
i
t
/
i
)
;
}
)
;
it
(
'read_docs rejects path traversal'
,
async
(
)
=>
{
const
{
body
}
=
await
rpc
(
{
jsonrpc
:
'2.0'
,
id
:
13
,
method
:
'tools/call'
,
params
:
{
name
:
'read_docs'
,
arguments
:
{
name
:
'../package.json'
}
}
}
)
;
assert
.
ok
(
body
.
result
.
isError
)
;
}
)
;
it
(
'pod_info returns identity info'
,
async
(
)
=>
{
const
{
body
}
=
await
rpc
(
{
jsonrpc
:
'2.0'
,
id
:
14
,
method
:
'tools/call'
,
params
:
{
name
:
'pod_info'
,
arguments
:
{
}
}
}
,
{
token
}
)
;
assert
.
strictEqual
(
body
.
result
.
isError
,
false
)
;
const
payload
=
JSON
.
parse
(
body
.
result
.
content
[
0
]
.
text
)
;
assert
.
strictEqual
(
payload
.
server
,
'jss'
)
;
assert
.
ok
(
payload
.
identity
)
;
}
)
;
it
(
'rejects unknown method'
,
async
(
)
=>
{
const
{
body
}
=
await
rpc
(
{
jsonrpc
:
'2.0'
,
id
:
99
,
method
:
'doesnt/exist'
}
)
;
assert
.
strictEqual
(
body
.
error
?.
code
,
-
32601
)
;
}
)
;
// --- read_acl / write_acl (#496) ---
it
(
'read_acl returns existing authorizations for /mcptest/public/'
,
async
(
)
=>
{
const
{
body
}
=
await
rpc
(
{
jsonrpc
:
'2.0'
,
id
:
200
,
method
:
'tools/call'
,
params
:
{
name
:
'read_acl'
,
arguments
:
{
path
:
'/mcptest/public/'
}
}
}
,
{
token
}
)
;
assert
.
strictEqual
(
body
.
result
.
isError
,
false
,
body
.
result
.
content
?.
[
0
]
?.
text
)
;
const
payload
=
JSON
.
parse
(
body
.
result
.
content
[
0
]
.
text
)
;
assert
.
strictEqual
(
payload
.
exists
,
true
)
;
assert
.
ok
(
Array
.
isArray
(
payload
.
authorizations
)
)
;
assert
.
ok
(
payload
.
authorizations
.
length
>
0
,
'should have at least owner auth'
)
;
// Owner auth should include Read, Write, Control
const
ownerAuth
=
payload
.
authorizations
.
find
(
a
=>
a
.
modes
.
includes
(
'Control'
)
)
;
assert
.
ok
(
ownerAuth
,
'owner auth with Control should exist'
)
;
}
)
;
it
(
'write_acl + read_acl round-trip'
,
async
(
)
=>
{
const
auths
=
[
{
agents
:
[
'/mcptest/profile/card.jsonld#me'
]
,
modes
:
[
'Read'
,
'Write'
,
'Control'
]
,
isDefault
:
true
}
,
{
agentClasses
:
[
'acl:AuthenticatedAgent'
]
,
modes
:
[
'Read'
,
'Append'
]
,
isDefault
:
true
}
,
{
agentClasses
:
[
'foaf:Agent'
]
,
modes
:
[
'Read'
]
,
isDefault
:
true
}
]
;
const
wr
=
await
rpc
(
{
jsonrpc
:
'2.0'
,
id
:
201
,
method
:
'tools/call'
,
params
:
{
name
:
'write_acl'
,
arguments
:
{
path
:
'/mcptest/public/'
,
authorizations
:
auths
}
}
}
,
{
token
}
)
;
assert
.
strictEqual
(
wr
.
body
.
result
.
isError
,
false
,
wr
.
body
.
result
.
content
?.
[
0
]
?.
text
)
;
const
rd
=
await
rpc
(
{
jsonrpc
:
'2.0'
,
id
:
202
,
method
:
'tools/call'
,
params
:
{
name
:
'read_acl'
,
arguments
:
{
path
:
'/mcptest/public/'
}
}
}
,
{
token
}
)
;
const
payload
=
JSON
.
parse
(
rd
.
body
.
result
.
content
[
0
]
.
text
)
;
assert
.
strictEqual
(
payload
.
authorizations
.
length
,
3
)
;
const
classes
=
payload
.
authorizations
.
flatMap
(
a
=>
a
.
agentClasses
||
[
]
)
;
assert
.
ok
(
classes
.
includes
(
'acl:AuthenticatedAgent'
)
)
;
assert
.
ok
(
classes
.
includes
(
'foaf:Agent'
)
)
;
}
)
;
it
(
'write_acl refuses to lock caller out (safety)'
,
async
(
)
=>
{
// Try to write an ACL that grants Control only to a foreign WebID
// — would lock the caller (mcptest owner) out. Safety should refuse.
const
{
body
}
=
await
rpc
(
{
jsonrpc
:
'2.0'
,
id
:
204
,
method
:
'tools/call'
,
params
:
{
name
:
'write_acl'
,
arguments
:
{
path
:
'/mcptest/public/'
,
authorizations
:
[
{
agents
:
[
'https://stranger.example/profile#me'
]
,
modes
:
[
'Read'
,
'Write'
,
'Control'
]
,
isDefault
:
true
}
]
}
}
}
,
{
token
}
)
;
assert
.
ok
(
body
.
result
.
isError
)
;
assert
.
match
(
body
.
result
.
content
[
0
]
.
text
,
/
l
o
c
k
t
h
e
c
a
l
l
e
r
o
u
t
|
w
o
u
l
d
n
o
t
g
r
a
n
t
C
o
n
t
r
o
l
/
i
)
;
}
)
;
it
(
'write_acl denied without Control'
,
async
(
)
=>
{
const
{
body
}
=
await
rpc
(
{
jsonrpc
:
'2.0'
,
id
:
203
,
method
:
'tools/call'
,
params
:
{
name
:
'write_acl'
,
arguments
:
{
path
:
'/mcptest/public/'
,
authorizations
:
[
{
agentClasses
:
[
'foaf:Agent'
]
,
modes
:
[
'Read'
]
}
]
}
}
}
)
;
// no token
assert
.
ok
(
body
.
result
.
isError
)
;
assert
.
match
(
body
.
result
.
content
[
0
]
.
text
,
/
c
o
n
t
r
o
l
/
i
)
;
}
)
;
it
(
'write_acl on a resource does not lock the owner out (#575)'
,
async
(
)
=>
{
// Regression: write_acl on a non-container resource used to set
// accessTo='./', which resolves to the *parent container* rather than
// the resource, leaving the resource with zero matching authorizations
// and locking out even the owner who just granted themselves Control.
const
resPath
=
'/mcptest/public/acl575.txt'
;
const
cr
=
await
rpc
(
{
jsonrpc
:
'2.0'
,
id
:
220
,
method
:
'tools/call'
,
params
:
{
name
:
'write_resource'
,
arguments
:
{
path
:
resPath
,
content
:
'secret'
,
contentType
:
'text/plain'
}
}
}
,
{
token
}
)
;
assert
.
strictEqual
(
cr
.
body
.
result
.
isError
,
false
,
cr
.
body
.
result
.
content
?.
[
0
]
?.
text
)
;
// Grant the owner Read/Write/Control on the resource itself.
const
wr
=
await
rpc
(
{
jsonrpc
:
'2.0'
,
id
:
221
,
method
:
'tools/call'
,
params
:
{
name
:
'write_acl'
,
arguments
:
{
path
:
resPath
,
authorizations
:
[
{
agents
:
[
ownerWebId
]
,
modes
:
[
'Read'
,
'Write'
,
'Control'
]
}
]
}
}
}
,
{
token
}
)
;
assert
.
strictEqual
(
wr
.
body
.
result
.
isError
,
false
,
wr
.
body
.
result
.
content
?.
[
0
]
?.
text
)
;
// read_acl requires Control on the resource. Before the fix the owner
// was locked out and this was denied; it must now succeed.
const
rd
=
await
rpc
(
{
jsonrpc
:
'2.0'
,
id
:
222
,
method
:
'tools/call'
,
params
:
{
name
:
'read_acl'
,
arguments
:
{
path
:
resPath
}
}
}
,
{
token
}
)
;
assert
.
strictEqual
(
rd
.
body
.
result
.
isError
,
false
,
'owner locked out of resource ACL (#575): '
+
rd
.
body
.
result
.
content
?.
[
0
]
?.
text
)
;
const
payload
=
JSON
.
parse
(
rd
.
body
.
result
.
content
[
0
]
.
text
)
;
assert
.
ok
(
payload
.
authorizations
.
some
(
a
=>
a
.
modes
.
includes
(
'Control'
)
)
,
'resource ACL should grant the owner Control'
)
;
}
)
;
// --- call_remote_pod (#495) ---
it
(
'call_remote_pod denied without federation gate access'
,
async
(
)
=>
{
const
{
body
}
=
await
rpc
(
{
jsonrpc
:
'2.0'
,
id
:
210
,
method
:
'tools/call'
,
params
:
{
name
:
'call_remote_pod'
,
arguments
:
{
pod_url
:
'http://example.invalid'
,
tool
:
'pod_info'
,
arguments
:
{
}
}
}
}
)
;
// no token
assert
.
ok
(
body
.
result
.
isError
)
;
// Anonymous → "local WebID identity" error; authenticated-but-not-gated → "federation gate"
assert
.
match
(
body
.
result
.
content
[
0
]
.
text
,
/
f
e
d
e
r
a
t
i
o
n
/
i
)
;
}
)
;
it
(
'call_remote_pod hits its own /mcp when gated open'
,
async
(
)
=>
{
// Federation gate lives at <agent-pod>/private/federation/. For the
// mcptest pod owner that's /mcptest/private/federation/. Create the
// container, then grant AuthenticatedAgent Write there.
await
rpc
(
{
jsonrpc
:
'2.0'
,
id
:
220
,
method
:
'tools/call'
,
params
:
{
name
:
'create_resource'
,
arguments
:
{
container
:
'/mcptest/private/'
,
slug
:
'federation'
,
isContainer
:
true
}
}
}
,
{
token
}
)
;
await
rpc
(
{
jsonrpc
:
'2.0'
,
id
:
221
,
method
:
'tools/call'
,
params
:
{
name
:
'write_acl'
,
arguments
:
{
path
:
'/mcptest/private/federation/'
,
authorizations
:
[
{
agents
:
[
'/mcptest/profile/card.jsonld#me'
]
,
modes
:
[
'Read'
,
'Write'
,
'Control'
]
,
isDefault
:
true
}
]
}
}
}
,
{
token
}
)
;
// Now call our own MCP back at /mcp invoking pod_info
const
base
=
getBaseUrl
(
)
;
const
{
body
}
=
await
rpc
(
{
jsonrpc
:
'2.0'
,
id
:
222
,
method
:
'tools/call'
,
params
:
{
name
:
'call_remote_pod'
,
arguments
:
{
pod_url
:
base
,
tool
:
'pod_info'
,
arguments
:
{
}
}
}
}
,
{
token
}
)
;
assert
.
strictEqual
(
body
.
result
.
isError
,
false
,
body
.
result
.
content
?.
[
0
]
?.
text
)
;
const
payload
=
JSON
.
parse
(
body
.
result
.
content
[
0
]
.
text
)
;
assert
.
strictEqual
(
payload
.
depth
,
1
)
;
assert
.
ok
(
payload
.
remote_result
)
;
}
)
;
it
(
'call_remote_pod enforces depth cap'
,
async
(
)
=>
{
// Force an inbound MCP-Federation-Depth header so the next hop trips MAX
const
res
=
await
request
(
'/mcp'
,
{
method
:
'POST'
,
headers
:
{
'Content-Type'
:
'application/json'
,
'Authorization'
:
`Bearer
${
token
}
`
,
'MCP-Federation-Depth'
:
'3'
// already at max → next hop would be 4
}
,
body
:
JSON
.
stringify
(
{
jsonrpc
:
'2.0'
,
id
:
230
,
method
:
'tools/call'
,
params
:
{
name
:
'call_remote_pod'
,
arguments
:
{
pod_url
:
getBaseUrl
(
)
,
tool
:
'pod_info'
,
arguments
:
{
}
}
}
}
)
}
)
;
const
data
=
await
res
.
json
(
)
;
assert
.
ok
(
data
.
result
.
isError
)
;
assert
.
match
(
data
.
result
.
content
[
0
]
.
text
,
/
d
e
p
t
h
e
x
c
e
e
d
e
d
/
)
;
}
)
;
// --- subscribe (#494) ---
it
(
'subscribe streams SSE events on resourceEvents change'
,
async
(
)
=>
{
// Open the SSE stream
const
res
=
await
fetch
(
`
${
getBaseUrl
(
)
}
/mcp`
,
{
method
:
'POST'
,
headers
:
{
'Content-Type'
:
'application/json'
,
'Authorization'
:
`Bearer
${
token
}
`
}
,
body
:
JSON
.
stringify
(
{
jsonrpc
:
'2.0'
,
id
:
300
,
method
:
'tools/call'
,
params
:
{
name
:
'subscribe'
,
arguments
:
{
path
:
'/mcptest/public/'
}
}
}
)
}
)
;
assert
.
strictEqual
(
res
.
status
,
200
)
;
assert
.
match
(
res
.
headers
.
get
(
'content-type'
)
||
''
,
/
t
e
x
t
\/
e
v
e
n
t
-
s
t
r
e
a
m
/
)
;
// Read the initial "subscribed" event then trigger a change
const
reader
=
res
.
body
.
getReader
(
)
;
const
decoder
=
new
TextDecoder
(
)
;
let
buffer
=
''
;
let
events
=
[
]
;
async
function
readUntil
(
predicate
,
timeoutMs
=
3000
)
{
const
deadline
=
Date
.
now
(
)
+
timeoutMs
;
while
(
Date
.
now
(
)
<
deadline
)
{
const
{
value
,
done
}
=
await
Promise
.
race
(
[
reader
.
read
(
)
,
new
Promise
(
r
=>
setTimeout
(
(
)
=>
r
(
{
value
:
null
,
done
:
false
}
)
,
200
)
)
]
)
;
if
(
done
)
break
;
if
(
value
)
{
buffer
+=
decoder
.
decode
(
value
,
{
stream
:
true
}
)
;
// Parse complete SSE events (terminated by \n\n)
let
idx
;
while
(
(
idx
=
buffer
.
indexOf
(
'\n\n'
)
)
!==
-
1
)
{
const
chunk
=
buffer
.
slice
(
0
,
idx
)
;
buffer
=
buffer
.
slice
(
idx
+
2
)
;
const
dataLine
=
chunk
.
split
(
'\n'
)
.
find
(
l
=>
l
.
startsWith
(
'data: '
)
)
;
if
(
dataLine
)
{
events
.
push
(
JSON
.
parse
(
dataLine
.
slice
(
6
)
)
)
;
}
}
if
(
predicate
(
events
)
)
return
;
}
}
}
await
readUntil
(
e
=>
e
.
length
>=
1
)
;
// wait for "subscribed" event
assert
.
ok
(
events
.
length
>=
1
)
;
assert
.
strictEqual
(
events
[
0
]
.
method
,
'notifications/tool_event'
)
;
assert
.
strictEqual
(
events
[
0
]
.
params
.
event
.
type
,
'subscribed'
)
;
// Trigger a change inside scope
emitChange
(
`
${
getBaseUrl
(
)
}
/mcptest/public/triggered.txt`
)
;
await
readUntil
(
e
=>
e
.
some
(
ev
=>
ev
.
params
?.
event
?.
type
===
'resource_changed'
)
,
3000
)
;
const
change
=
events
.
find
(
ev
=>
ev
.
params
?.
event
?.
type
===
'resource_changed'
)
;
assert
.
ok
(
change
,
`expected resource_changed event; got
${
JSON
.
stringify
(
events
)
}
`
)
;
assert
.
strictEqual
(
change
.
params
.
event
.
path
,
'/mcptest/public/triggered.txt'
)
;
// Clean up: cancel stream
await
reader
.
cancel
(
)
;
}
)
;
it
(
'subscribe filters by scope'
,
async
(
)
=>
{
const
res
=
await
fetch
(
`
${
getBaseUrl
(
)
}
/mcp`
,
{
method
:
'POST'
,
headers
:
{
'Content-Type'
:
'application/json'
,
'Authorization'
:
`Bearer
${
token
}
`
}
,
body
:
JSON
.
stringify
(
{
jsonrpc
:
'2.0'
,
id
:
301
,
method
:
'tools/call'
,
params
:
{
name
:
'subscribe'
,
arguments
:
{
path
:
'/mcptest/public/'
}
}
}
)
}
)
;
const
reader
=
res
.
body
.
getReader
(
)
;
const
decoder
=
new
TextDecoder
(
)
;
let
buffer
=
''
;
let
events
=
[
]
;
async
function
read
(
ms
=
800
)
{
const
deadline
=
Date
.
now
(
)
+
ms
;
while
(
Date
.
now
(
)
<
deadline
)
{
const
{
value
,
done
}
=
await
Promise
.
race
(
[
reader
.
read
(
)
,
new
Promise
(
r
=>
setTimeout
(
(
)
=>
r
(
{
value
:
null
,
done
:
false
}
)
,
100
)
)
]
)
;
if
(
done
)
break
;
if
(
value
)
{
buffer
+=
decoder
.
decode
(
value
,
{
stream
:
true
}
)
;
let
idx
;
while
(
(
idx
=
buffer
.
indexOf
(
'\n\n'
)
)
!==
-
1
)
{
const
chunk
=
buffer
.
slice
(
0
,
idx
)
;
buffer
=
buffer
.
slice
(
idx
+
2
)
;
const
dataLine
=
chunk
.
split
(
'\n'
)
.
find
(
l
=>
l
.
startsWith
(
'data: '
)
)
;
if
(
dataLine
)
events
.
push
(
JSON
.
parse
(
dataLine
.
slice
(
6
)
)
)
;
}
}
}
}
await
read
(
500
)
;
// pick up "subscribed"
// Out-of-scope change — should NOT trigger an event
emitChange
(
`
${
getBaseUrl
(
)
}
/mcptest/private/notes/x.txt`
)
;
await
read
(
500
)
;
const
changes
=
events
.
filter
(
e
=>
e
.
params
?.
event
?.
type
===
'resource_changed'
)
;
assert
.
strictEqual
(
changes
.
length
,
0
,
'out-of-scope change should not emit'
)
;
await
reader
.
cancel
(
)
;
}
)
;
it
(
'rejects unknown tool'
,
async
(
)
=>
{
const
{
body
}
=
await
rpc
(
{
jsonrpc
:
'2.0'
,
id
:
100
,
method
:
'tools/call'
,
params
:
{
name
:
'fictional_tool'
,
arguments
:
{
}
}
}
)
;
assert
.
ok
(
body
.
result
?.
isError
)
;
assert
.
match
(
body
.
result
.
content
[
0
]
.
text
,
/
u
n
k
n
o
w
n
t
o
o
l
/
)
;
}
)
;
}
)
;
describe
(
'MCP server disabled (no flag)'
,
(
)
=>
{
before
(
async
(
)
=>
{
await
startTestServer
(
{
}
)
;
}
)
;
after
(
async
(
)
=>
{
await
stopTestServer
(
)
;
}
)
;
it
(
'blocks /mcp when flag is off'
,
async
(
)
=>
{
// Without --mcp, the route isn't registered. The global auth hook fires
// first on the missing route and rejects (401) since /mcp isn't on the
// skip list when mcpEnabled is false. Either 401 or 404 is correct
// "MCP is not available here" behavior; both block tool dispatch.
const
res
=
await
request
(
'/mcp'
,
{
method
:
'POST'
,
headers
:
{
'Content-Type'
:
'application/json'
}
,
body
:
JSON
.
stringify
(
{
jsonrpc
:
'2.0'
,
id
:
1
,
method
:
'initialize'
}
)
}
)
;
assert
.
ok
(
res
.
status
===
404
||
res
.
status
===
401
,
`expected 404 or 401, got
${
res
.
status
}
`
)
;
}
)
;
}
)
;
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