Files
deepseek-harness/packages/extensions/tool-cordis/tests/mount.spec.ts
Tianyi Cui a2d0f7f411 refactor: apply repository naming contract
Apply the accepted pre-release package, service, type, directory, and role renames as one repository-wide change.
2026-08-13 00:54:38 +08:00

898 lines
41 KiB
TypeScript

import { afterEach, describe, expect, it, vi } from 'vitest'
import { isJsonValue } from '@deepseek-ai/dsh-session'
import { sandboxDefineTool } from '../src/guard.ts'
import { syntaxErrorContext } from '../src/sandbox.ts'
import { call, CONTENT_OUTPUT_CODE, dummyTool, LISTENER_CODE, REVERSE_TOOL_CODE, setup, text } from './helpers.ts'
/**
* The `cordis_mount` success/failure family: real plugins land on a genuine
* cordis fiber tree, their registrations are observable through the real
* registry/event bus, and every rejection path teaches the fix.
*/
afterEach(() => {
vi.restoreAllMocks()
})
describe('cordis_mount', () => {
it.each([
[42, 'options must be an object'],
[{ parameters: {} }, 'output must declare { schema, render, presentationMeta? }'],
[{ parameters: {}, output: { schema: { type: 'json' } }, execute: async (): Promise<null> => null }, 'output.render must be a function'],
[{ parameters: {}, output: { schema: { type: 'json' }, render: () => [] }, execute: true }, 'execute must be a function'],
[{
parameters: {},
output: { schema: { type: 'json' }, render: () => [], presentationMeta: true },
execute: async (): Promise<null> => null,
}, 'output.presentationMeta must be a function'],
])('rejects an invalid dynamic tool declaration before registration: %j', (definition, message) => {
expect(() => sandboxDefineTool(definition)).toThrow(message)
})
it('bounds the preview of an invalid dynamic renderer return', () => {
const definition = sandboxDefineTool({
name: 'invalid-renderer',
description: 'invalid renderer',
parameters: {},
output: {
schema: { type: 'string' },
render: () => ['x'.repeat(500)],
},
execute: async () => 'ok',
})
expect(() => definition.output.render({}, 'ok')).toThrow(/output\.render returned \["x+…/)
})
it('mounts a listener plugin that observes real events, tagged-logging through to the host console', async () => {
const ctx = await setup()
const log = vi.spyOn(console, 'log').mockImplementation(() => {})
const result = await call(ctx, 'cordis_mount', { code: LISTENER_CODE })
expect(result.isError).toBe(false)
if (result.isError) throw new Error('expected cordis_mount success')
expect(result.value).toEqual({
id: 'dyn-1',
pluginName: 'change-logger',
state: 'active',
provides: [],
waitingFor: [],
})
expect(text(result)).toBe('Temporary Plugin dyn-1 is running (plugin "change-logger"; available until unmounted or DSH restarts).')
// Fire a REAL tools/change by registering a tool; the mounted listener logs.
ctx.tools.register(dummyTool('trigger_a'))
expect(log).toHaveBeenCalledWith('[cordis:dyn-1]', 'tools changed')
})
it('mounts a bare-function plugin as <anonymous>, and a named function under its name', async () => {
const ctx = await setup()
const anonymous = await call(ctx, 'cordis_mount', { code: 'return (ctx) => { ctx.on(\'tools/change\', () => {}) }' })
expect(anonymous.isError).toBe(false)
expect(text(anonymous)).toContain('plugin "<anonymous>"')
const named = await call(ctx, 'cordis_mount', { code: 'return function watcher(ctx) {}' })
expect(text(named)).toContain('plugin "watcher"')
})
it('lets the agent give ITSELF a new tool, immediately callable through the registry', async () => {
const ctx = await setup()
const result = await call(ctx, 'cordis_mount', { code: REVERSE_TOOL_CODE })
expect(result.isError).toBe(false)
expect(ctx.tools.schemas().map(schema => schema.name)).toContain('reverse_text')
const reversed = await call(ctx, 'reverse_text', { text: 'harness' })
expect(reversed.isError).toBe(false)
if (reversed.isError) throw new Error('expected dynamic tool success')
expect(reversed.value).toBe('ssenrah')
expect(text(reversed)).toBe('ssenrah')
})
it('normalizes a self-made tool\'s result into the host realm, so the session log accepts it', async () => {
// VM-realm objects fail the session prototype-identity check; normalize them into host JSON.
const ctx = await setup()
await call(ctx, 'cordis_mount', { code: REVERSE_TOOL_CODE })
const reversed = await call(ctx, 'reverse_text', { text: 'harness' })
expect(isJsonValue({ content: reversed.content, isError: reversed.isError })).toBe(true)
})
it('projects presentation metadata from a dynamic canonical value', async () => {
const ctx = await setup()
await call(ctx, 'cordis_mount', {
code: `
return {
name: 'meta-return',
inject: ['tools'],
apply(ctx) {
harness.registerTool(ctx, harness.defineTool({
name: 'meta_tool',
description: 'attaches a private presentation payload',
parameters: {},
output: {
schema: { type: 'string' },
render(_args, value) { return [{ type: 'text', text: value }] },
presentationMeta() { return { kind: 'demo' } },
},
async execute() {
return 'ok'
},
}))
},
}
`,
})
const result = await call(ctx, 'meta_tool', {})
expect(result.isError).toBe(false)
if (result.isError) throw new Error('expected dynamic tool success')
expect(result.value).toBe('ok')
expect(text(result)).toBe('ok')
expect(result.meta).toEqual({ kind: 'demo' })
})
it.each([
['a bare string', 'return \'ok\'', 'returned invalid output: "value" must be an array'],
['an object whose content is a string', 'return { content: \'ok\' }', 'returned invalid output: "value" must be an array'],
['an array of non-objects', 'return [\'ok\']', 'output.render returned ["ok"]'],
['blocks missing the type tag', 'return [{ text: \'hi\' }]', 'output.render returned [{"text":"hi"}]'],
['object-form blocks missing the type tag', 'return { content: [{ text: \'hi\' }] }', 'returned invalid output: "value" must be an array'],
['undefined — a forgotten return', 'return undefined', 'execute result must be lossless JSON data'],
])('rejects an execute return of %s against its declared output', async (_label, returnStatement, diagnostic) => {
const ctx = await setup()
await call(ctx, 'cordis_mount', {
code: `
return {
name: 'bad-return',
inject: ['tools'],
apply(ctx) {
harness.registerTool(ctx, harness.defineTool({
name: 'bad_return_tool',
description: 'returns a wrong shape',
parameters: {},
${CONTENT_OUTPUT_CODE}
async execute() { ${returnStatement} },
}))
},
}
`,
})
const result = await call(ctx, 'bad_return_tool', {})
expect(result.isError).toBe(true)
expect(result.content).toHaveLength(1)
expect(result.content[0]!.type).toBe('text')
expect(text(result)).toContain(diagnostic)
})
it('does not echo a huge schema-invalid canonical value in the diagnostic', async () => {
const ctx = await setup()
await call(ctx, 'cordis_mount', {
code: `
return {
name: 'huge-return',
inject: ['tools'],
apply(ctx) {
harness.registerTool(ctx, harness.defineTool({
name: 'huge_return_tool',
description: 'returns a huge wrong shape',
parameters: {},
${CONTENT_OUTPUT_CODE}
async execute() { return 'x'.repeat(500) },
}))
},
}
`,
})
const result = await call(ctx, 'huge_return_tool', {})
expect(result.isError).toBe(true)
expect(text(result)).toContain('returned invalid output')
expect(text(result)).not.toContain('x'.repeat(200))
})
it('accepts a JSON-Schema-style parameters wrapper and normalizes it to the DSL', async () => {
// These common JSON-Schema spellings each have one DSL meaning, so normalize rather than
// consume another model turn with a rejection.
const ctx = await setup()
const result = await call(ctx, 'cordis_mount', {
code: `
return {
name: 'json-schema-tool',
inject: ['tools'],
apply(ctx) {
harness.registerTool(ctx, harness.defineTool({
name: 'json_schema_tool',
description: 'written in the JSON-Schema dialect',
parameters: {
type: 'object',
title: 'Raw parameters',
default: { text: 'default' },
examples: [{ text: 'example' }],
properties: {
text: { type: 'string', description: 'the text' },
count: { type: 'integer', default: 1 },
mode: { type: 'string', enum: ['fast', 'slow'] },
extra: { type: 'string' },
},
required: ['text'],
},
${CONTENT_OUTPUT_CODE}
async execute(args) { return [{ type: 'text', text: args.text + ':' + (args.count ?? 0) }] },
}))
},
}
`,
})
expect(result.isError).toBe(false)
// The registered schema is canonical JSON Schema derived from the DSL:
// the required array survived, integer stayed integer, extra is optional.
const schema = ctx.tools.schemas().find(s => s.name === 'json_schema_tool')!
const parameters = schema.parameters as {
properties: Record<string, { type: string; enum?: string[]; default?: unknown }>
required?: string[]
}
expect(parameters.required).toEqual(['text'])
expect(parameters).toMatchObject({
title: 'Raw parameters',
default: { text: 'default' },
examples: [{ text: 'example' }],
})
expect(parameters.properties.count!.type).toBe('integer')
expect(parameters.properties.count!.default).toBe(1)
expect(parameters.properties.mode!.enum).toEqual(['fast', 'slow'])
// Arg validation enforces the normalized spec: text required, extra not.
expect((await call(ctx, 'json_schema_tool', { count: 2 })).isError).toBe(true)
expect(text(await call(ctx, 'json_schema_tool', { text: 'ok', count: 2 }))).toBe('ok:2')
})
it('normalizes a nested object property carrying a JSON-Schema required array', async () => {
// On an object PROPERTY, a JSON-Schema-style `required` array names the
// required children — the nested unwrap converts it just like the top level.
const ctx = await setup()
const result = await call(ctx, 'cordis_mount', {
code: `
return {
name: 'nested-json-schema',
inject: ['tools'],
apply(ctx) {
harness.registerTool(ctx, harness.defineTool({
name: 'nested_json_schema_tool',
description: 'nested dialect',
parameters: {
type: 'object',
properties: {
cfg: { type: 'object', properties: { label: { type: 'string' } }, required: ['label'] },
},
},
${CONTENT_OUTPUT_CODE}
async execute(args) { return [{ type: 'text', text: args.cfg.label }] },
}))
},
}
`,
})
expect(result.isError).toBe(false)
const schema = ctx.tools.schemas().find(s => s.name === 'nested_json_schema_tool')!
const cfg = (schema.parameters as { properties: { cfg: { required?: string[] } } }).properties.cfg
expect(cfg.required).toEqual(['label'])
expect(text(await call(ctx, 'nested_json_schema_tool', { cfg: { label: 'hi' } }))).toBe('hi')
})
it('normalizes every unified DSL node and lossless annotation shape across the sandbox realm', async () => {
const ctx = await setup()
const result = await call(ctx, 'cordis_mount', {
code: `
return {
name: 'unified-schema',
inject: ['tools'],
apply(ctx) {
harness.registerTool(ctx, harness.defineTool({
name: 'unified_schema_tool',
description: 'all unified nodes',
parameters: {
any: {
type: 'json',
title: 'Any JSON',
default: { nested: [1, 'x', null] },
examples: [{ ok: true }],
},
choice: {
oneOf: [{ type: 'string', const: 'x' }, { type: 'null' }],
required: true,
},
flags: { type: 'array' },
closed: { type: 'object', additionalProperties: false },
count: { type: 'number', enum: [1, 2], const: 1 },
},
${CONTENT_OUTPUT_CODE}
async execute(args) { return [{ type: 'text', text: String(args.choice) }] },
}))
},
}
`,
})
expect(result.isError).toBe(false)
const schema = ctx.tools.schemas().find(s => s.name === 'unified_schema_tool')!
expect(schema.parameters).toMatchObject({
properties: {
any: { title: 'Any JSON', default: { nested: [1, 'x', null] }, examples: [{ ok: true }] },
choice: { oneOf: [{ type: 'string', const: 'x' }, { type: 'null' }] },
flags: { type: 'array' },
closed: { type: 'object', additionalProperties: false },
count: { type: 'number', enum: [1, 2], const: 1 },
},
required: ['choice'],
})
})
it('normalizes and snapshots deeply nested sandbox schemas and annotations stack-safely', async () => {
const ctx = await setup()
const depth = 5_000
const result = await call(ctx, 'cordis_mount', {
code: `
return {
name: 'deep-unified-schema',
inject: ['tools'],
apply(ctx) {
let choice = { type: 'string' }
let example = 'leaf'
for (let index = 0; index < ${depth}; index++) {
choice = { oneOf: [choice, { type: 'null' }] }
example = [example]
}
harness.registerTool(ctx, harness.defineTool({
name: 'deep_unified_schema_tool',
description: 'deep unified nodes',
parameters: {
choice: { ...choice, required: true },
any: { type: 'json', default: example },
},
${CONTENT_OUTPUT_CODE}
async execute() { return [] },
}))
},
}
`,
})
expect(result.isError).toBe(false)
const parameters = ctx.tools.schemas().find(s => s.name === 'deep_unified_schema_tool')!.parameters as {
properties: Record<string, Record<string, unknown>>
}
let choice = parameters.properties.choice!
let choiceDepth = 0
while (Array.isArray(choice.oneOf)) {
choice = choice.oneOf[0] as Record<string, unknown>
choiceDepth++
}
let example: unknown = parameters.properties.any!.default
let exampleDepth = 0
while (Array.isArray(example)) {
example = example[0]
exampleDepth++
}
expect({ choiceDepth, choice, exampleDepth, example }).toEqual({
choiceDepth: depth,
choice: { type: 'string' },
exampleDepth: depth,
example: 'leaf',
})
})
it('normalizes unconstrained and closed nested nodes from a raw JSON Schema wrapper', async () => {
const ctx = await setup()
const result = await call(ctx, 'cordis_mount', {
code: `
return {
name: 'raw-unified-schema',
inject: ['tools'],
apply(ctx) {
harness.registerTool(ctx, harness.defineTool({
name: 'raw_unified_schema_tool',
description: 'raw unified nodes',
parameters: {
type: 'object',
additionalProperties: true,
properties: {
any: { description: 'unconstrained' },
cfg: {
type: 'object',
additionalProperties: false,
properties: { label: { type: 'string' } },
required: ['label'],
},
choice: { oneOf: [{ type: 'boolean' }, { type: 'null' }] },
},
},
${CONTENT_OUTPUT_CODE}
async execute() { return [] },
}))
},
}
`,
})
expect(result.isError).toBe(false)
expect(ctx.tools.schemas().find(s => s.name === 'raw_unified_schema_tool')!.parameters).toMatchObject({
properties: {
any: {},
cfg: { additionalProperties: false, required: ['label'] },
choice: { oneOf: [{ type: 'boolean' }, { type: 'null' }] },
},
})
})
it.each([
['parameters: 42', 'must be a ParameterSchemaSpec object'],
['parameters: Object.defineProperty({}, \'text\', { value: { type: \'string\' } })', 'parameters must contain only own enumerable string keys'],
['parameters: { text: 42 }', 'parameters.text must be a ParameterSchemaSpec property object'],
['parameters: { text: Object.defineProperty({ type: \'string\' }, \'minimum\', { value: 1 }) }', 'parameters.text must contain only own enumerable string keys'],
['parameters: { text: { type: \'string\', [Symbol(\'hidden\')]: true } }', 'parameters.text must contain only own enumerable string keys'],
['parameters: { text: { type: \'str\' } }', 'parameters.text must declare a valid type: \'string\' | \'number\' | \'integer\' | \'boolean\' | \'null\' | \'object\' | \'array\' | \'json\' (got "str")'],
['parameters: { text: { type: \'string\', required: \'yes\' } }', 'parameters.text.required must be true when present'],
['parameters: { text: { type: \'string\', properties: {} } }', 'parameters.text.properties is not supported by the unified schema DSL'],
['parameters: { text: { type: \'string\', items: { type: \'string\' } } }', 'parameters.text.items is not supported by the unified schema DSL'],
['parameters: { text: { type: \'object\', properties: {} } }', 'parameters.text.additionalProperties must be explicitly true or false'],
['parameters: { text: { type: \'object\', additionalProperties: \'no\' } }', 'parameters.text.additionalProperties must be explicitly true or false'],
['parameters: { type: \'object\' }', 'parameters.properties must be an object of schemas'],
['parameters: { type: \'object\', properties: {}, additionalProperties: false }', 'parameters.additionalProperties must be true or omitted'],
['parameters: { type: \'object\', properties: {}, required: \'text\' }', 'parameters.required must be an array of declared property names'],
['parameters: { type: \'object\', properties: {}, required: undefined }', 'parameters.required must be an array of declared property names'],
['parameters: { type: \'object\', properties: {}, required: [42] }', 'parameters.required must be an array of declared property names'],
['parameters: (() => { const required = []; required.length = 1; return { type: \'object\', properties: {}, required } })()', 'parameters.required must be an array of declared property names'],
['parameters: (() => { const required = []; required.length = 1; required.extra = true; return { type: \'object\', properties: {}, required } })()', 'parameters.required must be an array of declared property names'],
['parameters: (() => { class Names extends Array { *[Symbol.iterator]() {} }; const required = new Names(); required[0] = \'text\'; required.length = 1; return { type: \'object\', properties: { text: { type: \'string\' } }, required } })()', 'parameters.required must be an array of declared property names'],
['parameters: { type: \'object\', properties: {}, required: [\'text\'] }', 'parameters.required names undeclared property "text"'],
['parameters: { type: \'object\', properties: { text: { type: \'string\', required: true } } }', 'parameters.text.required belongs to the containing raw object schema'],
['parameters: { type: \'object\', properties: { text: { oneOf: \'bad\' } } }', 'parameters.text.oneOf must contain at least two schemas'],
['parameters: { type: \'object\', properties: { text: { type: \'json\' } } }', 'parameters.text must declare a valid type'],
['parameters: { type: \'object\', properties: { cfg: { type: \'object\', additionalProperties: \'no\' } } }', 'parameters.cfg.additionalProperties must be a boolean'],
['parameters: { type: \'object\', properties: { cfg: { type: \'object\', properties: 42 } } }', 'parameters.cfg.properties must be an object of schemas'],
['parameters: { type: \'object\', properties: { cfg: { type: \'object\', required: [\'label\'] } } }', 'parameters.cfg.required names undeclared property "label"'],
['parameters: { type: \'object\', properties: { cfg: { type: \'object\', required: undefined } } }', 'parameters.cfg.required must be an array of declared property names'],
['parameters: { value: { oneOf: \'bad\' } }', 'parameters.value.oneOf must contain at least two schemas'],
['parameters: { value: { oneOf: new (class Branches extends Array {})({ type: \'string\' }, { type: \'null\' }) } }', 'parameters.value.oneOf must contain at least two schemas'],
['parameters: { value: { oneOf: Object.assign([{ type: \'string\' }, { type: \'null\' }], { extra: true }) } }', 'parameters.value.oneOf must contain at least two schemas'],
['parameters: { value: { type: \'string\', enum: \'bad\' } }', 'enum must be a non-empty array'],
['parameters: { value: { type: \'string\', enum: new (class Values extends Array {})(\'a\', \'b\') } }', 'parameters.value.enum must be a non-empty array'],
['parameters: { value: { type: \'json\', default: -0 } }', 'parameters.value.default must be lossless JSON data'],
['parameters: { value: { type: \'json\', default: Infinity } }', 'parameters.value.default must be lossless JSON data'],
['parameters: { value: { type: \'json\', default: () => 1 } }', 'parameters.value.default must be lossless JSON data'],
['parameters: { value: { type: \'json\', default: (() => { const v = {}; v.self = v; return v })() } }', 'parameters.value.default.self must be lossless JSON data'],
['parameters: { value: { type: \'json\', default: Array(2) } }', 'parameters.value.default must be lossless JSON data'],
['parameters: { value: { type: \'json\', default: Object.assign([1], { extra: true }) } }', 'parameters.value.default must be lossless JSON data'],
['parameters: { value: { type: \'json\', default: (() => { const v = Array(1); v.extra = true; return v })() } }', 'parameters.value.default must be lossless JSON data'],
['parameters: { value: { type: \'json\', default: Object.defineProperty({}, \'hidden\', { value: true }) } }', 'parameters.value.default must be lossless JSON data'],
['parameters: { value: { type: \'json\', default: { [Symbol(\'hidden\')]: true } } }', 'parameters.value.default must be lossless JSON data'],
['parameters: { value: { type: \'json\', default: new (class DefaultValue { constructor() { this.ok = true } })() } }', 'parameters.value.default must be lossless JSON data'],
['parameters: { value: { type: \'json\', default: new (class DefaultList extends Array {})() } }', 'parameters.value.default must be lossless JSON data'],
['parameters: { value: { type: \'json\', default: new Date(0) } }', 'parameters.value.default must be lossless JSON data'],
['parameters: (() => { const p = Object.create(null); const C = function C() {}; Object.defineProperty(C, \'name\', { value: \'Object\' }); C.prototype = p; Object.defineProperty(p, \'constructor\', { value: C }); return Object.create(p) })()', 'must be a ParameterSchemaSpec object'],
['parameters: (() => { const p = Object.create(null); const C = function C() {}; Object.defineProperty(C, \'name\', { value: \'Object\' }); C.prototype = p; const r = Proxy.revocable(C, {}); Object.defineProperty(p, \'constructor\', { value: r.proxy }); r.revoke(); return Object.create(p) })()', 'must be a ParameterSchemaSpec object'],
['parameters: Object.create(Object.create(null))', 'must be a ParameterSchemaSpec object'],
])('rejects a malformed ParameterSchemaSpec (%s) with a teaching error', async (parameters, message) => {
const ctx = await setup()
const result = await call(ctx, 'cordis_mount', {
code: `
return {
name: 'bad-schema',
inject: ['tools'],
apply(ctx) {
harness.registerTool(ctx, harness.defineTool({
name: 'bad_schema_tool',
description: 'bad',
${parameters},
${CONTENT_OUTPUT_CODE}
async execute() { return [] },
}))
},
}
`,
})
expect(result.isError).toBe(true)
expect(text(result)).toContain(message)
})
it.each([
[
`
const parameters = {}
const item = { type: 'array' }
item.items = item
parameters.item = item
`,
'parameters.item.items is circular',
],
[
`
const parameters = {}
const item = { type: 'object', additionalProperties: true, properties: parameters }
parameters.item = item
`,
'parameters.item.properties is circular',
],
])('rejects circular sandbox schemas without exhausting the call stack', async (declaration, message) => {
const ctx = await setup()
const result = await call(ctx, 'cordis_mount', {
code: `
return {
name: 'circular-schema',
inject: ['tools'],
apply(ctx) {
${declaration}
harness.registerTool(ctx, harness.defineTool({
name: 'circular_schema_tool',
description: 'circular',
parameters,
async execute() { return [] },
}))
},
}
`,
})
expect(result.isError).toBe(true)
expect(text(result)).toContain(message)
})
it('preserves literal __proto__ keys in sandbox schemas and annotations', async () => {
const ctx = await setup()
const result = await call(ctx, 'cordis_mount', {
code: `
return {
name: 'proto-schema',
inject: ['tools'],
apply(ctx) {
harness.registerTool(ctx, harness.defineTool({
name: 'proto_schema_tool',
description: 'literal JSON keys',
parameters: {
['__proto__']: { type: 'string', required: true },
value: { type: 'json', default: { ['__proto__']: { safe: true } } },
},
${CONTENT_OUTPUT_CODE}
async execute() { return [] },
}))
},
}
`,
})
expect(result.isError).toBe(false)
const parameters = ctx.tools.schemas().find(schema => schema.name === 'proto_schema_tool')!.parameters as {
properties: Record<string, { default?: unknown }>
required?: string[]
}
expect(Object.hasOwn(parameters.properties, '__proto__')).toBe(true)
expect(parameters.required).toContain('__proto__')
const defaultValue = parameters.properties.value!.default as Record<string, unknown>
expect(Object.hasOwn(defaultValue, '__proto__')).toBe(true)
expect(defaultValue.__proto__).toEqual({ safe: true })
})
it('accepts a nested object/array ParameterSchemaSpec (the DSL recursion)', async () => {
const ctx = await setup()
const result = await call(ctx, 'cordis_mount', {
code: `
return {
name: 'nested-schema',
inject: ['tools'],
apply(ctx) {
harness.registerTool(ctx, harness.defineTool({
name: 'nested_schema_tool',
description: 'nested',
parameters: {
item: { type: 'object', additionalProperties: true, required: true, properties: { label: { type: 'string', required: true } } },
tags: { type: 'array', items: { type: 'string' } },
},
${CONTENT_OUTPUT_CODE}
async execute(args) { return [{ type: 'text', text: args.item.label }] },
}))
},
}
`,
})
expect(result.isError).toBe(false)
const echoed = await call(ctx, 'nested_schema_tool', { item: { label: 'ok' }, tags: ['a'] })
expect(text(echoed)).toBe('ok')
})
it('rejects raw dynamic ctx.tools.register calls that bypass harness helpers', async () => {
const ctx = await setup()
const result = await call(ctx, 'cordis_mount', {
code: `
return {
name: 'raw-register',
inject: ['tools'],
apply(ctx) {
ctx.tools.register({
name: 'raw_dynamic_tool',
description: 'raw',
parameters: { type: 'object', properties: {} },
${CONTENT_OUTPUT_CODE}
async execute() { return [] },
})
},
}
`,
})
expect(result.isError).toBe(true)
expect(text(result)).toContain('dynamic tool registration must use a tool returned by harness.defineTool')
expect(ctx.tools.get('raw_dynamic_tool')).toBeUndefined()
})
it('guards the registry reached through ctx.get(\'tools\') identically', async () => {
const ctx = await setup()
const result = await call(ctx, 'cordis_mount', {
code: `
return {
name: 'raw-register-get',
apply(ctx) {
ctx.get('tools').register({ name: 'raw_via_get', description: 'raw', parameters: {}, async execute() { return [] } })
},
}
`,
})
expect(result.isError).toBe(true)
expect(text(result)).toContain('dynamic tool registration must use a tool returned by harness.defineTool')
expect(ctx.tools.get('raw_via_get')).toBeUndefined()
})
it('passes non-register registry members through the guard with correct binding', async () => {
const ctx = await setup()
const log = vi.spyOn(console, 'log').mockImplementation(() => {})
const result = await call(ctx, 'cordis_mount', {
code: `
return {
name: 'schema-reader',
inject: ['tools'],
apply(ctx) {
console.log('sees', ctx.tools.schemas().length, 'tools; mount is', typeof ctx.tools.get('cordis_mount'))
},
}
`,
})
expect(result.isError).toBe(false)
expect(log).toHaveBeenCalledWith('[cordis:dyn-1]', 'sees', 3, 'tools; mount is', 'object')
})
it('keeps a plugin with unsatisfied inject mounted as pending and names what it waits for', async () => {
const ctx = await setup()
const result = await call(ctx, 'cordis_mount', {
code: 'return { name: \'waiter\', inject: [\'no-such-service\'], apply(ctx) {} }',
})
expect(result.isError).toBe(false)
if (result.isError) throw new Error('expected pending cordis_mount success')
expect(result.value).toEqual({
id: 'dyn-1',
pluginName: 'waiter',
state: 'pending',
provides: [],
waitingFor: ['no-such-service'],
})
expect(text(result)).toBe('Temporary Plugin dyn-1 is pending (plugin "waiter"; missing services: no-such-service; available until unmounted or DSH restarts).')
// Unmounting a pending mount works like any other.
const unmounted = await call(ctx, 'cordis_unmount', { id: 'dyn-1' })
expect(unmounted.isError).toBe(false)
})
it('rejects code that throws, leaving nothing mounted', async () => {
const ctx = await setup()
const result = await call(ctx, 'cordis_mount', { code: 'throw new Error(\'boom in sandbox\')' })
expect(result.isError).toBe(true)
expect(text(result)).toContain('boom in sandbox')
expect(text(await call(ctx, 'cordis_inspect', { what: 'temporary' }))).toContain('No temporary Plugins are running.')
})
it('passes non-Error and null throws through untouched (no SyntaxError misclassification)', async () => {
const ctx = await setup()
const primitive = await call(ctx, 'cordis_mount', { code: 'throw \'plain-string-throw\'' })
expect(primitive.isError).toBe(true)
expect(text(primitive)).toContain('plain-string-throw')
const nullish = await call(ctx, 'cordis_mount', { code: 'throw null' })
expect(nullish.isError).toBe(true)
})
it('rejects code that does not return a plugin', async () => {
const ctx = await setup()
const result = await call(ctx, 'cordis_mount', { code: 'return 42' })
expect(result.isError).toBe(true)
expect(text(result)).toContain('must `return` a Plugin')
})
it('answers a missing return with the two valid plugin forms', async () => {
const ctx = await setup()
const result = await call(ctx, 'cordis_mount', { code: 'const plugin = (ctx) => {}' })
expect(result.isError).toBe(true)
expect(text(result)).toContain('did you forget `return`?')
})
it('disposes a plugin whose apply throws, and reports the error', async () => {
const ctx = await setup()
const result = await call(ctx, 'cordis_mount', {
code: 'return { name: \'broken\', apply(ctx) { throw new Error(\'apply exploded\') } }',
})
expect(result.isError).toBe(true)
expect(text(result)).toContain('apply exploded')
expect(text(await call(ctx, 'cordis_inspect', { what: 'temporary' }))).toContain('No temporary Plugins are running.')
})
it('rolls back a plugin that collides with an existing tool name, keeping the original tool intact', async () => {
const ctx = await setup()
const result = await call(ctx, 'cordis_mount', {
code: `
return {
name: 'usurper',
inject: ['tools'],
apply(ctx) {
harness.registerTool(ctx, harness.defineTool({
name: 'cordis_mount',
description: 'dup',
parameters: {},
${CONTENT_OUTPUT_CODE}
async execute() { return [] },
}))
},
}
`,
})
expect(result.isError).toBe(true)
expect(text(result)).toContain('already registered')
expect(text(result)).toContain('first cordis_unmount')
// The original cordis_mount still dispatches — the failed fiber is gone.
const retry = await call(ctx, 'cordis_mount', { code: LISTENER_CODE })
expect(retry.isError).toBe(false)
})
it('isolates sandbox globals: no process/Buffer, and globalThis writes do not leak to the host', async () => {
const ctx = await setup()
const result = await call(ctx, 'cordis_mount', {
code: `
globalThis.__cordis_tool_leak = 'leaked'
return { name: 'probe-' + typeof process + '-' + typeof Buffer, apply(ctx) {} }
`,
})
expect(result.isError).toBe(false)
expect(text(result)).toContain('plugin "probe-undefined-undefined"')
expect((globalThis as Record<string, unknown>).__cordis_tool_leak).toBeUndefined()
})
it.each([
['require(\'fs\')', 'require is not available in the temporary Plugin sandbox', 'inject: [\'fs\']'],
['setTimeout(() => {}, 5)', 'setTimeout is not available in the temporary Plugin sandbox', 'ctx.setTimeout'],
['fetch(\'https://example.com\')', 'fetch is not available in the temporary Plugin sandbox', 'ctx.web'],
])('traps the Node API call %s with a redirect to the cordis alternative', async (invocation, trapMessage, redirect) => {
const ctx = await setup()
const result = await call(ctx, 'cordis_mount', { code: `${invocation}\nreturn (ctx) => {}` })
expect(result.isError).toBe(true)
expect(text(result)).toContain(trapMessage)
expect(text(result)).toContain(redirect)
expect(text(await call(ctx, 'cordis_inspect', { what: 'temporary' }))).toContain('No temporary Plugins are running.')
})
it('lets a mounted plugin schedule through the cordis timer service (inject: [\'timer\'])', async () => {
const ctx = await setup()
const log = vi.spyOn(console, 'log').mockImplementation(() => {})
const result = await call(ctx, 'cordis_mount', {
code: `
return {
name: 'ticker',
inject: ['timer'],
apply(ctx) {
ctx.setTimeout(() => console.log('tick'), 10)
},
}
`,
})
expect(result.isError).toBe(false)
expect(text(result)).toContain('is running')
await new Promise(resolve => setTimeout(resolve, 50))
expect(log).toHaveBeenCalledWith('[cordis:dyn-1]', 'tick')
})
it('provides btoa/atob and the tagged console variants inside the sandbox', async () => {
const ctx = await setup()
const log = vi.spyOn(console, 'log').mockImplementation(() => {})
const error = vi.spyOn(console, 'error').mockImplementation(() => {})
const result = await call(ctx, 'cordis_mount', {
code: `
console.warn('warned')
console.error('errored')
const round = atob(btoa('hi'))
const bytes = new TextEncoder().encode(round)
return { name: 'codec-' + new TextDecoder().decode(bytes), apply(ctx) { console.log('applied', typeof ctx.on) } }
`,
})
expect(result.isError).toBe(false)
expect(text(result)).toContain('plugin "codec-hi"')
expect(log).toHaveBeenCalledWith('[cordis:dyn-1]', 'warned')
expect(log).toHaveBeenCalledWith('[cordis:dyn-1]', 'applied', 'function')
expect(error).toHaveBeenCalledWith('[cordis:dyn-1]', 'errored')
})
it('answers TypeScript syntax in the plain-JS sandbox with the fix', async () => {
const ctx = await setup()
const result = await call(ctx, 'cordis_mount', {
code: 'return { name: \'ts\' as const, apply(ctx) {} }',
})
expect(result.isError).toBe(true)
expect(text(result)).toContain('plain JavaScript, not TypeScript')
})
it('surfaces the offending line + caret and the bracket-balance hint on a syntax error', async () => {
const ctx = await setup()
// The canonical model mistake: closing the returned object with `});` as
// if it were a callback argument. The word "as" in a STRING elsewhere must
// not trigger the TypeScript hint — the heuristic reads the failing line.
const result = await call(ctx, 'cordis_mount', {
code: 'const note = \'treat pattern as regex\'\nreturn {\n name: \'oops\',\n apply(ctx) {}\n});',
})
expect(result.isError).toBe(true)
const message = text(result)
expect(message).toContain('failed to parse')
expect(message).toContain('});')
expect(message).toContain('^')
expect(message).toContain('BODY of an async function')
expect(message).not.toContain('TypeScript')
})
it('syntaxErrorContext falls back to String(error) when the stack has no vm prelude', () => {
const doctored = new SyntaxError('boom')
delete (doctored as { stack?: string }).stack
expect(syntaxErrorContext(doctored)).toBe('SyntaxError: boom')
const plain = new SyntaxError('bang')
plain.stack = 'not-a-vm-stack'
expect(syntaxErrorContext(plain)).toBe('SyntaxError: bang')
})
it('handles a runtime-thrown SyntaxError (no source-line prelude) with the generic hint', async () => {
const ctx = await setup()
const result = await call(ctx, 'cordis_mount', { code: 'throw new SyntaxError(\'user-crafted\')' })
expect(result.isError).toBe(true)
expect(text(result)).toContain('failed to parse')
expect(text(result)).toContain('user-crafted')
})
it('honors the configured vmTimeoutMs for the synchronous portion', async () => {
const ctx = await setup({ vmTimeoutMs: 50 })
const result = await call(ctx, 'cordis_mount', { code: 'while (true) {}' })
expect(result.isError).toBe(true)
expect(text(result)).toMatch(/timed? ?out/i)
expect(text(await call(ctx, 'cordis_inspect', { what: 'temporary' }))).toContain('No temporary Plugins are running.')
})
it('makes instanceof inside the sandbox see BOTH realms (patched vm constructors, host untouched)', async () => {
// The args a tool's execute receives are HOST-realm objects; without the dual-realm
// Symbol.hasInstance prelude, `args.items instanceof Array` in sandbox code is silently
// false.
const ctx = await setup()
await call(ctx, 'cordis_mount', {
code: `
return {
name: 'probe-instanceof',
inject: ['tools'],
apply(ctx) {
harness.registerTool(ctx, harness.defineTool({
name: 'probe_instanceof',
description: 'report instanceof checks across realms',
parameters: { items: { type: 'array', required: true, items: { type: 'string' } } },
${CONTENT_OUTPUT_CODE}
async execute(args) {
const checks = {
hostArray: args.items instanceof Array,
hostObject: args instanceof Object,
vmArray: [] instanceof Array,
vmObject: ({}) instanceof Object,
}
return [{ type: 'text', text: JSON.stringify(checks) }]
},
}))
},
}
`,
})
const probed = await call(ctx, 'probe_instanceof', { items: ['a'] })
expect(probed.isError).toBe(false)
expect(JSON.parse(text(probed))).toEqual({ hostArray: true, hostObject: true, vmArray: true, vmObject: true })
// The host realm's constructors keep their default instanceof: no own
// Symbol.hasInstance was added to them.
expect(Object.getOwnPropertySymbols(Object)).not.toContain(Symbol.hasInstance)
expect(Object.getOwnPropertySymbols(Array)).not.toContain(Symbol.hasInstance)
})
})