nim-ethers/testmodule/testJsonRpcProvider.nim

import std/json
import pkg/asynctest
import pkg/chronos
import pkg/ethers/providers/jsonrpc

suite "JsonRpcProvider":

  var provider: JsonRpcProvider

  setup:
    provider = JsonRpcProvider.new("ws://localhost:8545")

  test "can be instantiated with a default URL":
    discard JsonRpcProvider.new()

  test "can be instantiated with an HTTP URL":
    discard JsonRpcProvider.new("http://localhost:8545")

  test "can be instantiated with a websocket URL":
    discard JsonRpcProvider.new("ws://localhost:8545")

  test "lists all accounts":
    let accounts = await provider.listAccounts()
    check accounts.len > 0

  test "sends raw messages to the provider":
    let response = await provider.send("evm_mine")
    check response == %"0x0"

  test "returns block number":
    let blocknumber1 = await provider.getBlockNumber()
    discard await provider.send("evm_mine")
    let blocknumber2 = await provider.getBlockNumber()
    check blocknumber2 > blocknumber1

  test "returns block":
    let block1 = !await provider.getBlock(BlockTag.earliest)
    let block2 = !await provider.getBlock(BlockTag.latest)
    check block1.hash != block2.hash
    check block1.number < block2.number
    check block1.timestamp < block2.timestamp