edge/misc/client-sdk-testsuite/src/public/test/rpc-module.js

describe('Remote Procedure Call', function () {

    before(() => {
        return Edge.connect();
    });

    after(() => {
        Edge.disconnect();
    });

    it('should call the remote echo() method and resolve the returned value', function () {
        const foo = "bar";

        return Edge.rpc('echo', { foo })
            .then(result => {
                console.log(result);
                chai.assert.equal(result.foo, foo);
            });
    });

    it('should call the remote throwErrorFromClient() method and reject with an error', function () {
        return Edge.rpc('throwErrorFromClient')
            .catch(err => {
                // Assert that it's an "internal" error
                // See https://www.jsonrpc.org/specification#error_object
                chai.assert.equal(err.code, -32603);
            });
    });

    it('should call an unregistered method and reject with an error', function () {
        return Edge.rpc('unregisteredMethod')
            .catch(err => {
                // Assert that it's an "method not found" error
                // See https://www.jsonrpc.org/specification#error_object
                chai.assert.equal(err.code, -32601);
            });
    });


    it('should call the add() method repetitively and keep count of the sent values', function () {
        this.timeout(30000);

        const values = [];
        for (let i = 0; i <= 1000; i++) {
            values.push((Math.random() * 1000 | 0));
        }
        return Edge.rpc('reset')
            .then(() => {
                return Promise.all(values.map(v => Edge.rpc("add", { value: v })));
            })
            .then(() => Edge.rpc('total'))
            .then(remoteTotal => {
                const localTotal = values.reduce((t, v) => t + v);
                console.log("Remote total:", remoteTotal, "Local total:", localTotal);
                chai.assert.equal(remoteTotal, localTotal)
            })
    });

});