Testing environment form WAVES blockchain

How to ?

Import package and write typescript/javascript code, interacting with waves blockchain. Package contains all global type definitions.

Example using mocha test runner

import '@waves/js-test-env';

env.API_BASE = "http://localhost:6869/";
env.CHAIN_ID = "R";
env.SEED = "waves private node seed with waves tokens";

describe('My first test suite', () => {
    const wvs = 10 ** 8;
    before(async function () {
        this.timeout(0);
        await setupAccounts({foo: 0.001 * wvs, bar: 0.001 * wvs});
    });

    it('Assertions', async function () {
        const ttx = transfer({amount: 100000000000000, recipient: address()}, accounts.foo)
        expect(ttx.proofs.length).to.equal(1)
        await expect(broadcast(ttx)).rejectedWith()
    })
    // And define tests inside suites
    // As you can see, we can use async functions to write async tests. sync functions have default timeout = 20s
    it('Aks balance and height', async function () {
        // You can set timeout. If you set it to zero, test won't finish untill function resolves
        this.timeout(0);
        // You can ask balance or currentHeigh
        const b = await balance();
        const h = await currentHeight();
        // Console methods avalilable in test. Everything will be printed in repl
        console.log(b, h)
    })

    it('Assertions', async function () {
        const ttx = transfer({amount: 100000000000000, recipient: address()}, accounts.foo)
        // Synchronous assertion
        expect(ttx.proofs.length).to.equal(1)
        // Async assertion. Expect broadcast to fail
        await expect(broadcast(ttx)).rejectedWith()
    })
})

Here you can find list of all globally available functions for ride test environment and REPL

Keep in mind that by default, if not passed, chainId, seed and nodeUrl are taken from your test env configuration file (or Web IDE settings)