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import { expect, assert } from 'chai';
import { TransportCb } from './Transport';
import { RPCServer } from './RPCServer';
import { RPCMethodError } from './Defines';
describe('RPCServer', () => {
it('Should handle valid request when request has array params', () => {
let downstreamcb: any;
// Setup RPCServer with dummy transport
let server = new RPCServer({
SendUpstream: (data: string) => {
// Parse json to avoid string comparison
expect(JSON.parse(data)).to.deep.equal({
jsonrpc: "2.0",
id: 10,
result: 20
});
},
SetDownstreamCb: (cb: TransportCb) => downstreamcb = cb
});
// bind method
server.bind("test", (a: number, b: number) => {
return a + b;
});
// call rpc method
downstreamcb('{"jsonrpc":"2.0","id":10,"method":"test","params":[5,15]}');
});
it('Should handle valid request when request has object params', () => {
let downstreamcb: any;
// Setup RPCServer with dummy transport
let server = new RPCServer({
SendUpstream: (data: string) => {
// Parse json to avoid string comparison
expect(JSON.parse(data)).to.deep.equal({
jsonrpc: "2.0",
id: 10,
result: 20
});
},
SetDownstreamCb: (cb: TransportCb) => downstreamcb = cb
});
// bind method
server.bind("test", (data: any) => {
return data.a + data.b;
});
// call rpc method
downstreamcb('{"jsonrpc":"2.0","id":10,"method":"test","params":{"a":5,"b":15}}');
});
it('Should respond with method not found error when request method is not bound', () => {
let downstreamcb: any;
// Setup RPCServer with dummy transport
let server = new RPCServer({
SendUpstream: (data: string) => {
// Parse json to avoid string comparison
expect(JSON.parse(data)).to.deep.equal({
jsonrpc: "2.0",
id: 10,
error: {
code: -32601,
message: 'Method not found'
}
});
},
SetDownstreamCb: (cb: TransportCb) => downstreamcb = cb
});
// call rpc method
downstreamcb('{"jsonrpc":"2.0","id":10,"method":"test","params":{"a":5,"b":15}}');
});
it('Should not respond when handling notification', () => {
let downstreamcb: any;
// Setup RPCServer with dummy transport
let server = new RPCServer({
SendUpstream: /* istanbul ignore next */ (data: string) => {
// Fail here, should not be called
assert.fail("Should not be called");
},
SetDownstreamCb: (cb: TransportCb) => downstreamcb = cb
});
// bind method
server.bind("test", (data: any) => {
return data.a + data.b;
});
// call rpc method
downstreamcb('{"jsonrpc":"2.0","method":"test","params":{"a":5,"b":15}}');
expect(true).to.equal(true);
});
it('Should respond with error when handler throws RPCMethodError', () => {
let downstreamcb: any;
// Setup RPCServer with dummy transport
let server = new RPCServer({
SendUpstream: (data: string) => {
// Parse json to avoid string comparison
expect(JSON.parse(data)).to.deep.equal({
jsonrpc: "2.0",
id: 10,
error: {
code: 69,
message: 'This is an error',
data: {
test: true
}
}
});
},
SetDownstreamCb: (cb: TransportCb) => downstreamcb = cb
});
// bind method
server.bind("test", (a: number, b: number) => {
throw new RPCMethodError(69, "This is an error", {test: true});
});
// call rpc method
downstreamcb('{"jsonrpc":"2.0","id":10,"method":"test","params":[5,15]}');
});
it('Should respond with internal server error when handler throws unknown error', () => {
let downstreamcb: any;
// Setup RPCServer with dummy transport
let server = new RPCServer({
SendUpstream: (data: string) => {
// Parse json to avoid string comparison
expect(JSON.parse(data)).to.deep.equal({
jsonrpc: "2.0",
id: 10,
error: {
code: -32603,
message: "Error: Generic error",
}
});
},
SetDownstreamCb: (cb: TransportCb) => downstreamcb = cb
});
// bind method
server.bind("test", (a: number, b: number) => {
throw new Error("Generic error");
});
// call rpc method
downstreamcb('{"jsonrpc":"2.0","id":10,"method":"test","params":[5,15]}');
});
it('Should respond with parse error when message is invalid json', () => {
let downstreamcb: any;
// Setup RPCServer with dummy transport
let server = new RPCServer({
SendUpstream: (data: string) => {
// Parse json to avoid string comparison
expect(JSON.parse(data)).to.deep.equal({
jsonrpc: "2.0",
id: null,
error: {
code: -32700,
message: "Parse error",
}
});
},
SetDownstreamCb: (cb: TransportCb) => downstreamcb = cb
});
// call rpc method
downstreamcb('{"jsonrpc"broken:"2.0","id":10,"method":"test","params":[5,15]}');
});
it('Should respond with invalid request when message is invalid JSON RPC request object', () => {
let downstreamcb: any;
// Setup RPCServer with dummy transport
let server = new RPCServer({
SendUpstream: (data: string) => {
// Parse json to avoid string comparison
expect(JSON.parse(data)).to.deep.equal({
jsonrpc: "2.0",
id: null,
error: {
code: -32600,
message: "Invalid Request",
}
});
},
SetDownstreamCb: (cb: TransportCb) => downstreamcb = cb
});
// call rpc method
downstreamcb('{"jsonrpc":"2.0","id":10,"params":[5,15]}');
});
it('Should respond with invalid request when message is JSON RPC response object', () => {
let downstreamcb: any;
// Setup RPCServer with dummy transport
let server = new RPCServer({
SendUpstream: (data: string) => {
// Parse json to avoid string comparison
expect(JSON.parse(data)).to.deep.equal({
jsonrpc: "2.0",
id: null,
error: {
code: -32600,
message: "Invalid Request",
}
});
},
SetDownstreamCb: (cb: TransportCb) => downstreamcb = cb
});
// call rpc method
downstreamcb('{"jsonrpc":"2.0","id":10,"result":true}');
});
});
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