ethers.js/packages/tests/src.ts/test-providers.ts

"use strict";

import assert from "assert";

//import Web3HttpProvider from "web3-providers-http";

import { ethers } from "ethers";

const bnify = ethers.BigNumber.from;

type TestCases = {
    addresses: Array<any>;
    blocks: Array<any>;
    transactions: Array<any>;
    transactionReceipts: Array<any>;
};

const blockchainData: { [ network: string ]: TestCases } = {
    homestead: {
        addresses: [
            {
                address: "0xAC1639CF97a3A46D431e6d1216f576622894cBB5",
                balance: bnify("4813414100000000"),
                code: "0x"
            },
            // Splitter contract
            {
                address: "0x3474627D4F63A678266BC17171D87f8570936622",
                code: "0x606060405260e060020a60003504630b3ed5368114602e57806337b0574a14605257806356fa47f0146062575b005b602c6004356000546101009004600160a060020a03908116339091161460bb575b50565b60005460ff166060908152602090f35b602c60043560005460ff1615609657600160a060020a038116600034606082818181858883f193505050501515604f576002565b33600160a060020a0316600034606082818181858883f193505050501515604f576002565b600080546101009004600160a060020a03169082606082818181858883f193505050501515604f57600256",
                storage: {
                    "0": "0x0000000000000000000000b2682160c482eb985ec9f3e364eec0a904c44c2300"
                }
            },
            {
                address: "0x8ba1f109551bD432803012645Ac136ddd64DBA72",
                name: "ricmoo.firefly.eth"
            },
        ],
        blocks: [
            {
                hash: "0x3d6122660cc824376f11ee842f83addc3525e2dd6756b9bcf0affa6aa88cf741",
                parentHash: "0xb495a1d7e6663152ae92708da4843337b958146015a2802f4193a410044698c9",
                number: 3,
                timestamp: 1438270048,
                nonce: "0x2e9344e0cbde83ce",
                difficulty: 17154715646,
                gasLimit: bnify("0x1388"),
                gasUsed: bnify("0"),
                miner: "0x5088D623ba0fcf0131E0897a91734A4D83596AA0",
                extraData: "0x476574682f76312e302e302d66633739643332642f6c696e75782f676f312e34",
                transactions: []
            }
        ],
        transactions: [
            {
                hash: "0xccc90ab97a74c952fb3376c4a3efb566a58a10df62eb4d44a61e106fcf10ec61",
                blockHash: "0x9653f180a5720f3634816eb945a6d722adee52cc47526f6357ac10adaf368135",
                blockNumber: 4097745,
                transactionIndex: 18,
                from: "0x32DEF047DeFd076DB21A2D759aff2A591c972248",
                gasPrice: bnify("0x4a817c800"),
                gasLimit: bnify("0x3d090"),
                to: "0x6fC21092DA55B392b045eD78F4732bff3C580e2c",
                value: bnify("0x186cc6acd4b0000"),
                nonce: 0,
                data: "0xf2c298be000000000000000000000000000000000000000000000000000000000000002000000000000000000000000000000000000000000000000000000000000000067269636d6f6f0000000000000000000000000000000000000000000000000000",
                r: "0x1e5605197a03e3f0a168f14749168dfeefc44c9228312dacbffdcbbb13263265",
                s: "0x269c3e5b3558267ad91b0a887d51f9f10098771c67b82ea6cb74f29638754f54",
                v: 38,
                creates: null,
                //raw: "0xf8d2808504a817c8008303d090946fc21092da55b392b045ed78f4732bff3c580e2c880186cc6acd4b0000b864f2c298be000000000000000000000000000000000000000000000000000000000000002000000000000000000000000000000000000000000000000000000000000000067269636d6f6f000000000000000000000000000000000000000000000000000026a01e5605197a03e3f0a168f14749168dfeefc44c9228312dacbffdcbbb13263265a0269c3e5b3558267ad91b0a887d51f9f10098771c67b82ea6cb74f29638754f54",
                chainId: 1
            }
        ],
        transactionReceipts: [
            {
                blockHash: "0x36b4af7f0538559e581c8588f16477df0f676439ea67fe8d7a2ae4abb20e2566",
                blockNumber: 0x3c92b5,
                contractAddress: null,
                cumulativeGasUsed: 0x1cca2e,
                from: "0x18C6045651826824FEBBD39d8560584078d1b247",
                gasUsed:0x14bb7,
                logs: [
                    {
                        address: "0x314159265dD8dbb310642f98f50C066173C1259b",
                        blockHash: "0x36b4af7f0538559e581c8588f16477df0f676439ea67fe8d7a2ae4abb20e2566",
                        blockNumber: 0x3c92b5,
                        data: "0x00000000000000000000000018c6045651826824febbd39d8560584078d1b247",
                        logIndex: 0x1a,
                        topics: [
                            "0xce0457fe73731f824cc272376169235128c118b49d344817417c6d108d155e82",
                            "0x93cdeb708b7545dc668eb9280176169d1c33cfd8ed6f04690a0bcc88a93fc4ae",
                            "0xf0106919d12469348e14ad6a051d0656227e1aba2fefed41737fdf78421b20e1"
                        ],
                        transactionHash: "0xc6fcb7d00d536e659a4559d2de29afa9e364094438fef3e72ba80728ce1cb616",
                        transactionIndex: 0x39,
                    },
                    {
                        address: "0x6090A6e47849629b7245Dfa1Ca21D94cd15878Ef",
                        blockHash: "0x36b4af7f0538559e581c8588f16477df0f676439ea67fe8d7a2ae4abb20e2566",
                        blockNumber: 0x3c92b5,
                        data: "0x000000000000000000000000000000000000000000000000002386f26fc1000000000000000000000000000000000000000000000000000000000000595a32ce",
                        logIndex: 0x1b,
                        topics: [
                            "0x0f0c27adfd84b60b6f456b0e87cdccb1e5fb9603991588d87fa99f5b6b61e670",
                            "0xf0106919d12469348e14ad6a051d0656227e1aba2fefed41737fdf78421b20e1",
                            "0x00000000000000000000000018c6045651826824febbd39d8560584078d1b247"
                        ],
                        transactionHash: "0xc6fcb7d00d536e659a4559d2de29afa9e364094438fef3e72ba80728ce1cb616",
                        transactionIndex: 0x39,
                    }
                ],
                logsBloom: "0x00000000000000040000000000100000010000000000000040000000000000000000000000000000000000000000000000000000000010000000000000000000000000000000000000000000000000000200000010000000004000000000000000000000000000000000002000000000000000000000000400000000020000000000000000000000000000000000000004000000000000000000000000000000000000000000000000801000000000000000000000020000000000040000000040000000000000000002000000004000000000000000000000000000000000000000000000010000000000000000000000000000000000200000000000000000",
                root: "0x9b550a9a640ce50331b64504ef87aaa7e2aaf97344acb6ff111f879b319d2590",
                status: null,
                to: "0x6090A6e47849629b7245Dfa1Ca21D94cd15878Ef",
                transactionHash: "0xc6fcb7d00d536e659a4559d2de29afa9e364094438fef3e72ba80728ce1cb616",
                transactionIndex: 0x39
            },
            // Byzantium block
            {
                byzantium: true,
                blockHash: "0x34e5a6cfbdbb84f7625df1de69d218ade4da72f4a2558064a156674e72e976c9",
                blockNumber: 0x444f76,
                contractAddress: null,
                cumulativeGasUsed: 0x15bfe7,
                from: "0x18C6045651826824FEBBD39d8560584078d1b247",
                gasUsed: 0x1b968,
                logs: [
                    {
                        address: "0xb90E64082D00437e65A76d4c8187596BC213480a",
                        blockHash: "0x34e5a6cfbdbb84f7625df1de69d218ade4da72f4a2558064a156674e72e976c9",
                        blockNumber: 0x444f76,
                        data: "0x",
                        logIndex: 0x10,
                        topics: [
                            "0x748d071d1992ee1bfe7a39058114d0a50d5798fe8eb3a9bfb4687f024629a2ce",
                            "0x5574aa58f7191ccab6de6cf75fe2ea0484f010b852fdd8c6b7ae151d6c2f4b83"
                        ],
                        transactionHash: "0x7f1c6a58dc880438236d0b0a4ae166e9e9a038dbea8ec074149bd8b176332cac",
                        transactionIndex: 0x1e,
                    }
                ],
                logsBloom: "0x00000000000000000000000000000000000000000000000000008000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001000000000000000200000000000000008000000000000000000000000000000000000000000000000000000000000000010000000000000000000800000000000000000000000000000000000000000000000000000000000000000000000000000020000000000000000000000000000000000000000000000000000800000000000000000800000000000000000000000000000000000000",
                status:1,
                to: "0xb90E64082D00437e65A76d4c8187596BC213480a",
                transactionHash: "0x7f1c6a58dc880438236d0b0a4ae166e9e9a038dbea8ec074149bd8b176332cac",
                transactionIndex: 0x1e
            }
        ]
    },
    kovan: {
        addresses: [
            {
                address: "0x09c967A0385eE3B3717779738cA0B9D116e0EcE7",
                balance: bnify("997787946734641021"),
                code: "0x"
            },
        ],
        blocks: [
            {
                hash: "0xf0ec9bf41b99a6bd1f6cd29f91302f71a1a82d14634d2e207edea4b7962f3676",
                parentHash: "0xf110ecd84454f116e2222378e7bca81ac3e59be0dac96d7ec56d5ef1c3bc1d64",
                number: 3,
                timestamp: 1488459452,
                difficulty: 131072,
                gasLimit: bnify("0x5b48ec"),
                gasUsed: bnify("0"),
                miner: "0x00A0A24b9f0E5EC7Aa4c7389b8302fd0123194dE",
                extraData: "0xd5830105048650617269747986312e31352e31826c69",
                transactions: []
            },
            // Kovan Test Case with difficulty > 53-bits; See #711
            {
                hash: "0xd92891a6eeaed4892289edf9bd5ebff261da5c6a51f7131cc1a481c6f4d1aa75",
                parentHash: "0xcc769a02513be1df80eee7d3a5cb87f14f37baee03c13f3e3ad1e7bdcaf7dac3",
                number: 16265864,
                timestamp: 1579621004,
                difficulty: null,
                gasLimit: bnify("0x989680"),
                gasUsed: bnify("0x0705bf"),
                miner: "0x596e8221A30bFe6e7eFF67Fee664A01C73BA3C56",
                extraData: "0xde830206088f5061726974792d457468657265756d86312e34302e30826c69",
                transactions: [
                    "0x20e6760fa1297fb06c8c20e6ed99581e0ba964d51167ea3c8ff580bfcb10bfc3",
                    "0x0ce7eba48b1bbdee05823b79ae24e741f3f290d0abfef8ae9adf32db108b7dd6",
                    "0x1fa2baafa844bf4853e4abbbf49532bf570210d589dc626dbf7ebc4832bdfa5d",
                    "0xdb5d1fa54d30a4b6aee0b242a2c68ea52d3dd28703f69e6e30871827850aa2fa",
                    "0xcc898db85d7d2493d4778faf640be32a4a3b7f5f987257bdc0009ce75a18eeaa"
                ]
            },
        ],
        transactions: [
        ],
        transactionReceipts: [
        ]
    },
    rinkeby: {
        addresses: [
            {
                address: "0xd09a624630a656a7dbb122cb05e41c12c7cd8c0e",
                balance: bnify("3000000000000000000"),
                code: "0x"
            },
        ],
        blocks: [
            {
                hash: "0x9eb9db9c3ec72918c7db73ae44e520139e95319c421ed6f9fc11fa8dd0cddc56",
                parentHash: "0x9b095b36c15eaf13044373aef8ee0bd3a382a5abb92e402afa44b8249c3a90e9",
                number: 3,
                timestamp: 1492010489,
                nonce: "0x0000000000000000",
                difficulty: 2,
                gasLimit: bnify("0x47e7c4"),
                gasUsed: bnify(0),
                miner: "0x0000000000000000000000000000000000000000",
                extraData: "0xd783010600846765746887676f312e372e33856c696e757800000000000000004e10f96536e45ceca7e34cc1bdda71db3f3bb029eb69afd28b57eb0202c0ec0859d383a99f63503c4df9ab6c1dc63bf6b9db77be952f47d86d2d7b208e77397301",
                transactions: []
            },
        ],
        transactions: [
        ],
        transactionReceipts: [
        ]
    },
    ropsten: {
        addresses: [
            {
                address: "0x03a6F7a5ce5866d9A0CCC1D4C980b8d523f80480",
                balance: bnify("15861113897828552666"),
                code: "0x"
            },
        ],
        blocks: [
            {
                hash: "0xaf2f2d55e6514389bcc388ccaf40c6ebf7b3814a199a214f1203fb674076e6df",
                parentHash: "0x88e8bc1dd383672e96d77ee247e7524622ff3b15c337bd33ef602f15ba82d920",
                number: 3,
                timestamp: 1479642588,
                nonce: "0x04668f72247a130c",
                difficulty: 996427,
                gasLimit: bnify("0xff4033"),
                gasUsed: bnify("0"),
                miner: "0xD1aEb42885A43b72B518182Ef893125814811048",
                extraData: "0xd883010503846765746887676f312e372e318664617277696e",
                transactions: []
            },
        ],
        transactions: [
        ],
        transactionReceipts: [
            {
                blockHash: "0xc9235b8253fce455942147aa8b450d23081b867ffbb2a1e4dec934827cd80f8f",
                blockNumber: 0x1564d8,
                contractAddress: null,
                cumulativeGasUsed: bnify("0x80b9"),
                from: "0xb346D5019EeafC028CfC01A5f789399C2314ae8D",
                gasUsed: bnify("0x80b9"),
                logs: [
                    {
                        address: "0x6fC21092DA55B392b045eD78F4732bff3C580e2c",
                        blockHash: "0xc9235b8253fce455942147aa8b450d23081b867ffbb2a1e4dec934827cd80f8f",
                        blockNumber: 0x1564d8,
                        data: "0x00000000000000000000000006b5955a67d827cdf91823e3bb8f069e6c89c1d6000000000000000000000000000000000000000000000000016345785d8a0000",
                        logIndex: 0x0,
                        topics: [
                            "0xac375770417e1cb46c89436efcf586a74d0298fee9838f66a38d40c65959ffda"
                        ],
                        transactionHash: "0x55c477790b105e69e98afadf0505cbda606414b0187356137132bf24945016ce",
                        transactionIndex: 0x0,
                    }
                ],
                logsBloom: "0x00000000000000800000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000400000000000000000000000000000000000000000000000000000000000008000000000000000000000000000000000000000000000000000000000000000000000000000000000001000000000000000000000010000000000000100000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000",
                root: "0xf1c3506ab619ac1b5e8f1ca355b16d6b9a1b7436b2960b0e9ec9a91f4238b5cc",
                to: "0x6fC21092DA55B392b045eD78F4732bff3C580e2c",
                transactionHash: "0x55c477790b105e69e98afadf0505cbda606414b0187356137132bf24945016ce",
                transactionIndex: 0x0
            },
            // Byzantium Receipt
            {
                byzantium: true,
                blockHash: "0x61d343e0e081b60ac53bab381e07bdd5d0815b204091a576fd05106b814e7e1e",
                blockNumber: 0x1e1e3b,
                contractAddress: null,
                cumulativeGasUsed: bnify("0x4142f"),
                from: "0xdc8F20170C0946ACCF9627b3EB1513CFD1c0499f",
                gasUsed: bnify("0x1eb6d"),
                logs: [
                    {
                        address: "0xCBf1735Aad8C4B337903cD44b419eFE6538aaB40",
                        blockHash: "0x61d343e0e081b60ac53bab381e07bdd5d0815b204091a576fd05106b814e7e1e",
                        blockNumber: 0x1e1e3b,
                        data: "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",
                        logIndex: 0x1,
                        topics: [ "0xb76d0edd90c6a07aa3ff7a222d7f5933e29c6acc660c059c97837f05c4ca1a84" ],
                        transactionHash: "0xf724f1d6813f13fb523c5f6af6261d06d41138dd094fff723e09fb0f893f03e6",
                        transactionIndex: 0x2,
                    }
                ],
                logsBloom: "0x00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000800000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000008000000000000000000000000000000000000000000000000000000000000000000008000000000000000000000080000000202000000",
                status: 1,
                to: "0xB70560a43A9aBf6ea2016F40a3e84B8821E134c5",
                transactionHash: "0xf724f1d6813f13fb523c5f6af6261d06d41138dd094fff723e09fb0f893f03e6",
                transactionIndex: 0x2
            },
        ],
    },
    goerli: {
        addresses: [
            {
                address: "0x06B5955A67D827CDF91823E3bB8F069e6c89c1D6",
                balance: bnify("314159000000000000"),
                code: "0x"
            },
        ],
        blocks: [
            {
                hash: "0xd5daa825732729bb0d2fd187a1b888e6bfc890f1fc5333984740d9052afb2920",
                parentHash: "0xe675f1362d82cdd1ec260b16fb046c17f61d8a84808150f5d715ccce775f575e",
                number: 3,
                timestamp: 1548947483,
                difficulty: 2,
                gasLimit: bnify("10455073"),
                gasUsed: bnify("0"),
                miner: "0x0000000000000000000000000000000000000000",
                extraData: "0x506172697479205465636820417574686f7269747900000000000000000000002822e1b202411c38084d96c84302b8361ec4840a51cd2fad9cb4bd9921cad7e64bc2e5dc7b41f3f75b33358be3aec718cf4d4317ace940e01b3581a95c9259ac01",
                transactions: []
            },
            // Blockhash with leading zero; see #629
            {
                hash: "0x0f305466552efa183a0de26b6fda26d55a872dbc02aca8b5852cc2a361ce9ee4",
                parentHash: "0x6723e880e01c15c5ac894abcae0f5b55ea809a31eaf5618998928f7d9cbc5118",
                number: 1479831,
                timestamp: 1571216171,
                difficulty: 2,
                gasLimit: bnify(0x7a1200),
                gasUsed: bnify("0x0d0ef5"),
                miner: "0x0000000000000000000000000000000000000000",
                extraData: "0x0000000000000000000000000000000000000000000000000000000000000000f4e6fc1fbd88adf57a272d98f725487f872ef0495a54c2b873a58d14e010bf517cc5650417f18cfd4ad2396272c564a7da1265ae27c397609293f488ec57d68e01",
                transactions: [
                     "0xea29f0764f03c5c67ac53a866a28ce23a4a032c2de4327e452b39f482920761a",
                     "0x0eef23ffb59ac41762fdfa55d9e47e82fa7f0b70b1e8ec486d72fe1fee15f6de",
                     "0xba1eeb67ac6e8d1aa900ff6fbd84ac46869c9e100b33f787acfb234cd9c93f9f",
                     "0x4f412ab735b29ddc8b1ff7abe4bfece7ad4684aa20e260fbc42aed75a0d387ea",
                     "0x2f1fddcc7a2c4b2b7d83c5cadec4e7b71c34cec65da99b1114bd2b044ae0636c"
                 ]
            }
        ],
        transactions: [
        ],
        transactionReceipts: [
            {
                blockHash: "0x2384e8e8bdcf6eb87ec7c138fa503ac34adb32cac817e4b35f14d4339eaa1993",
                blockNumber: 47464,
                byzantium: true,
                contractAddress: null,
                cumulativeGasUsed: bnify(21000),
                from: "0x8c1e1e5b47980D214965f3bd8ea34C413E120ae4",
                gasUsed: bnify(21000),
                logsBloom: "0x00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000",
                to: "0x58Bb4221245461E1d4cf886f18a01E3Df40Bd359",
                transactionHash: "0xec8b1ac5d787f36c738cc7793fec606283b41f1efa69df4ae6b2a014dcd12797",
                transactionIndex: 0,
                logs: [],
                status: 1
            }
        ],
    }
}

blockchainData["default"] = blockchainData.homestead;

function equals(name: string, actual: any, expected: any): void {
    if (expected && expected.eq) {
        if (actual == null) { assert.ok(false, name + " - actual big number null"); }
        expected = ethers.BigNumber.from(expected);
        actual = ethers.BigNumber.from(actual);
        assert.ok(expected.eq(actual), name + " matches");

    } else if (Array.isArray(expected)) {
        if (actual == null) { assert.ok(false, name + " - actual array null"); }
        assert.equal(actual.length, expected.length, name + " array lengths match");
        for (let i = 0; i < expected.length; i++) {
            equals("(" + name + " - item " + i + ")", actual[i], expected[i]);
        }

    } else if (typeof(expected) === "object") {
        if (actual == null) {
           if (expected === actual) { return; }
           assert.ok(false, name + " - actual object null");
        }

        let keys: { [ key: string ]: boolean } = {};
        Object.keys(expected).forEach((key) => { keys[key] = true; });
        Object.keys(actual).forEach((key) => { keys[key] = true; });

        Object.keys(keys).forEach((key) => {
            equals("(" + name + " - key + " + key + ")", actual[key], expected[key]);
        });

    } else {
        if (actual == null) { assert.ok(false, name + " - actual null"); }
        assert.equal(actual, expected, name + " matches");
    }
}

function waiter(duration: number): Promise<void> {
    return new Promise((resolve) => {
        const timer = setTimeout(resolve, duration);
        if (timer.unref) { timer.unref(); }
    });
}


type ProviderDescription = {
    name: string;
    networks: Array<string>;
    create: (network: string) => ethers.providers.Provider;
};

type CheckSkipFunc = (provider: string, network: string, test: TestDescription) => boolean;

type TestDescription = {
    name: string;
    networks: Array<string>;
    execute: (provider: ethers.providers.Provider) => Promise<void>;

    attempts?: number;
    timeout?: number;
    extras?: Array<"nowait" | "funding">;
    checkSkip?: CheckSkipFunc;
};


const allNetworks = [ "default", "homestead", "ropsten", "rinkeby", "kovan", "goerli" ];

// We use separate API keys because otherwise the testcases sometimes
// fail during CI because our default keys are pretty heavily used
const _ApiKeys: Record<string, string> = {
    alchemy: "YrPw6SWb20vJDRFkhWq8aKnTQ8JRNRHM",
    etherscan: "FPFGK6JSW2UHJJ2666FG93KP7WC999MNW7",
    infura: "49a0efa3aaee4fd99797bfa94d8ce2f1",
};

const _ApiKeysPocket: Record<string, string> = {
    homestead: "6004bcd10040261633ade990",
    ropsten: "6004bd4d0040261633ade991",
    rinkeby: "6004bda20040261633ade994",
    goerli: "6004bd860040261633ade992",
};

type ApiKeySet = {
    alchemy: string;
    etherscan: string;
    infura: string;
    pocket: string;
};

function getApiKeys(network: string): ApiKeySet {
    if (network === "default" || network == null) { network = "homestead"; }
    const apiKeys = ethers.utils.shallowCopy(_ApiKeys);
    apiKeys.pocket = _ApiKeysPocket[network];
    return <ApiKeySet>apiKeys;
}

const providerFunctions: Array<ProviderDescription> = [
    {
        name: "getDefaultProvider",
        networks: allNetworks,
        create: (network: string) => {
            if (network == "default") {
                return ethers.getDefaultProvider(null, getApiKeys(network));
            }
            return ethers.getDefaultProvider(network, getApiKeys(network));
        }
    },
    {
        name: "AlchemyProvider",
        networks: allNetworks,
        create: (network: string) => {
            if (network == "default") {
                return new ethers.providers.AlchemyProvider(null, getApiKeys(network).alchemy);
            }
            return new ethers.providers.AlchemyProvider(network, getApiKeys(network).alchemy);
        }
    },
    /*
    {
        name: "CloudflareProvider",
        networks: [ "default", "homestead" ],
        create: (network: string) => {
            return new ethers.providers.CloudflareProvider(network);
        }
    },
    */
    {
        name: "InfuraProvider",
        networks: allNetworks,
        create: (network: string) => {
            if (network == "default") {
                return new ethers.providers.InfuraProvider(null, getApiKeys(network).infura);
            }
            return new ethers.providers.InfuraProvider(network, getApiKeys(network).infura);
        }
    },
    {
        name: "EtherscanProvider",
        networks: allNetworks,
        create: (network: string) => {
            if (network == "default") {
                return new ethers.providers.EtherscanProvider(null, getApiKeys(network).etherscan);
            }
            return new ethers.providers.EtherscanProvider(network, getApiKeys(network).etherscan);
        }
    },
    {
        name: "NodesmithProvider",
        networks: [ ],
        create: (network: string) => {
            throw new Error("not tested");
        }
    },
    {
        name: "PocketProvider",
        // note: sans-kovan
        networks: [ "default", "homestead", "ropsten", "rinkeby", "goerli" ],
        create: (network: string) => {
            if (network == "default") {
                return new ethers.providers.PocketProvider(null, {
                    applicationId: getApiKeys(network).pocket,
                    loadBalancer: true
                });
            }
            return new ethers.providers.PocketProvider(network, {
                applicationId: getApiKeys(network).pocket,
                loadBalancer: true
            });
        }
    },
    {
        name: "Web3Provider",
        networks: [ ],
        create: (network: string) => {
            throw new Error("not tested");
        }
    }
];

// This wallet can be funded and used for various test cases
const fundWallet = ethers.Wallet.createRandom();


const testFunctions: Array<TestDescription> = [ ];

Object.keys(blockchainData).forEach((network) => {
    function addSimpleTest(name: string, func: (provider: ethers.providers.Provider) => Promise<any>, expected: any) {
        testFunctions.push({
            name: name,
            networks: [ network ],
            execute: async (provider: ethers.providers.Provider) => {
                const value = await func(provider);
                equals(name, expected, value);
            }
        });
    }

    function addObjectTest(name: string, func: (provider: ethers.providers.Provider) => Promise<any>, expected: any, checkSkip?: CheckSkipFunc) {
        testFunctions.push({
            name,
            networks: [ network ],
            checkSkip,
            execute: async (provider: ethers.providers.Provider) => {
                const value = await func(provider);
                Object.keys(expected).forEach((key) => {
                    equals(`${ name }.${ key }`, value[key], expected[key]);
                });
            }
        });
    }

    const tests: TestCases = blockchainData[network];

    // And address test case can have any of the following:
    // - balance
    // - code
    // - storage
    // - ENS name
    tests.addresses.forEach((test) => {
        if (test.balance) {
            addSimpleTest(`fetches account balance: ${ test.address }`, (provider: ethers.providers.Provider) => {
                return provider.getBalance(test.address);
            }, test.balance);
        }

        if (test.code) {
            addSimpleTest(`fetches account code: ${ test.address }`, (provider: ethers.providers.Provider) => {
                return provider.getCode(test.address);
            }, test.code);
        }

        if (test.storage) {
            Object.keys(test.storage).forEach((position) => {
                addSimpleTest(`fetches storage: ${ test.address }:${ position }`, (provider: ethers.providers.Provider) => {
                    return provider.getStorageAt(test.address, bnify(position));
                }, test.storage[position]);
            });
        }

        if (test.name) {
            addSimpleTest(`fetches ENS name: ${ test.address }`, (provider: ethers.providers.Provider) => {
                return provider.resolveName(test.name);
            }, test.address);
        }
    });

    tests.blocks.forEach((test) => {
        addObjectTest(`fetches block (by number) #${ test.number }`, (provider: ethers.providers.Provider) => {
            return provider.getBlock(test.number);
        }, test);
    });

    tests.blocks.forEach((test) => {
        addObjectTest(`fetches block (by hash) ${ test.hash }`, (provider: ethers.providers.Provider) => {
            return provider.getBlock(test.hash);
        }, test, (provider: string, network: string, test: TestDescription) => {
            return (provider === "EtherscanProvider");
        });
    });

    tests.transactions.forEach((test) => {
        addObjectTest(`fetches transaction ${ test.hash }`, async (provider: ethers.providers.Provider) => {
            const tx = await provider.getTransaction(test.hash);

            // This changes with every block
            assert.equal(typeof(tx.confirmations), "number", "confirmations is a number");
            delete tx.confirmations;

            assert.equal(typeof(tx.wait), "function", "wait is a function");
            delete tx.wait

            return tx;
        }, test, (provider: string, network: string, test: TestDescription) => {
            return (provider === "EtherscanProvider");
        });
    });

    tests.transactionReceipts.forEach((test) => {
        addObjectTest(`fetches transaction receipt ${ test.transactionHash }`, async (provider: ethers.providers.Provider) => {
            const receipt = await provider.getTransactionReceipt(test.transactionHash);

            if (test.status === null) {
                assert.ok(receipt.status === undefined, "no status");
                receipt.status = null;
            }

            // This changes with every block; so just make sure it is a number
            assert.equal(typeof(receipt.confirmations), "number", "confirmations is a number");
            delete receipt.confirmations;

            return receipt;
        }, test);
    });
});

(function() {
    function addErrorTest(code: string, func: (provider: ethers.providers.Provider) => Promise<any>) {
        testFunctions.push({
            name: `throws correct ${ code } error`,
            networks: [ "ropsten" ],
            execute: async (provider: ethers.providers.Provider) => {
                try {
                    const value = await func(provider);
                    console.log(value);
                    assert.ok(false, "did not throw");
                } catch (error) {
                    assert.equal(error.code, code, "incorrect error thrown");
                }
            }
        });
    }

    addErrorTest(ethers.utils.Logger.errors.NONCE_EXPIRED, async (provider: ethers.providers.Provider) => {
        return provider.sendTransaction("0xf86480850218711a0082520894000000000000000000000000000000000000000002801ba038aaddcaaae7d3fa066dfd6f196c8348e1bb210f2c121d36cb2c24ef20cea1fba008ae378075d3cd75aae99ab75a70da82161dffb2c8263dabc5d8adecfa9447fa");
    });

    addErrorTest(ethers.utils.Logger.errors.INSUFFICIENT_FUNDS, async (provider: ethers.providers.Provider) => {

        const txProps = {
            to: "0x8ba1f109551bD432803012645Ac136ddd64DBA72",
            gasPrice: 9000000000,
            gasLimit: 21000,
            value: 1
        };

        const wallet = ethers.Wallet.createRandom();
        const tx = await wallet.signTransaction(txProps);
        return provider.sendTransaction(tx);
    });

    addErrorTest(ethers.utils.Logger.errors.INSUFFICIENT_FUNDS, async (provider: ethers.providers.Provider) => {
        const txProps = {
            to: "0x8ba1f109551bD432803012645Ac136ddd64DBA72",
            gasPrice: 9000000000,
            gasLimit: 21000,
            value: 1
        };

        const wallet = ethers.Wallet.createRandom().connect(provider);
        return wallet.sendTransaction(txProps);
    });

    addErrorTest(ethers.utils.Logger.errors.UNPREDICTABLE_GAS_LIMIT, async (provider: ethers.providers.Provider) => {
        return provider.estimateGas({
            to: "0x00000000000C2E074eC69A0dFb2997BA6C7d2e1e" // ENS contract
        });
    });
})();

testFunctions.push({
    name: "sends a transaction",
    extras: [ "funding" ],         // We need funding to the funWallet
    timeout: 300,                  // 5 minutes
    networks: [ "ropsten" ],       // Only test on Ropsten
    execute: async (provider: ethers.providers.Provider) => {
        const wallet = fundWallet.connect(provider);

        const addr = "0x8210357f377E901f18E45294e86a2A32215Cc3C9";

        const b0 = await provider.getBalance(wallet.address);
        assert.ok(b0.gt(ethers.constants.Zero), "balance is non-zero");

        const tx = await wallet.sendTransaction({
            to: addr,
            value: 123
        });

        await tx.wait();

        const b1 = await provider.getBalance(wallet.address);
        assert.ok(b0.gt(b1), "balance is decreased");
    }
});

describe("Test Provider Methods", function() {
    let fundReceipt: Promise<ethers.providers.TransactionReceipt> = null;
    const faucet = "0x8210357f377E901f18E45294e86a2A32215Cc3C9";

    before(async function() {
        this.timeout(300000);

        // Get some ether from the faucet
        const provider = new ethers.providers.InfuraProvider("ropsten", getApiKeys("ropsten").infura);
        const funder = await ethers.utils.fetchJson(`https:/\/api.ethers.io/api/v1/?action=fundAccount&address=${ fundWallet.address.toLowerCase() }`);
        fundReceipt = provider.waitForTransaction(funder.hash);
        fundReceipt.then((receipt) => {
            console.log(`*** Funded: ${ fundWallet.address }`);
        });
    });

    after(async function() {
        this.timeout(300000);

        // Wait until the funding is complete
        await fundReceipt;

        // Refund all unused ether to the faucet
        const provider = new ethers.providers.InfuraProvider("ropsten", getApiKeys("ropsten").infura);
        const gasPrice = await provider.getGasPrice();
        const balance = await provider.getBalance(fundWallet.address);
        const tx = await fundWallet.connect(provider).sendTransaction({
            to: faucet,
            gasLimit: 21000,
            gasPrice: gasPrice,
            value: balance.sub(gasPrice.mul(21000))
        });

        console.log(`*** Sweep Transaction:`, tx.hash);
    });

    providerFunctions.forEach(({ name, networks, create}) => {

        networks.forEach((network) => {
            const provider = create(network);

            testFunctions.forEach((test) => {

                // Skip tests not supported on this network
                if (test.networks.indexOf(network) === -1) { return; }
                if (test.checkSkip && test.checkSkip(name, network, test)) {
                    return;
                }

                // How many attempts to try?
                const attempts = (test.attempts != null) ? test.attempts: 3;
                const timeout = (test.timeout != null) ? test.timeout: 60;
                const extras = (test.extras || []).reduce((accum, key) => {
                    accum[key] = true;
                    return accum;
                }, <Record<string, boolean>>{ });

                it(`${ name }.${ network ? network: "default" } ${ test.name}`, async function() {
                    // Multiply by 2 to make sure this never happens; we want our
                    // timeout logic to success, not allow a done() called multiple
                    // times because our logic returns after the timeout has occurred.
                    this.timeout(2 * (1000 + timeout * 1000 * attempts));

                    // Wait for the funding transaction to be mined
                    if (extras.funding) { await fundReceipt; }

                    // We wait at least 1 seconds between tests
                    if (!extras.nowait) { await waiter(1000); }

                    let error: Error = null;
                    for (let attempt = 0; attempt < attempts; attempt++) {
                        try {
                            const result = await Promise.race([
                                test.execute(provider),
                                waiter(timeout * 1000).then((result) => { throw new Error("timeout"); })
                            ]);
                            return result;
                        } catch (attemptError) {
                            console.log(`*** Failed attempt ${ attempt + 1 }: ${ attemptError.message }`);
                            error = attemptError;
                        }
                    }
                    throw error;
                });
            });
        });
    });

});

describe("Extra tests", function() {
    it("etherscan long-request #1093", async function() {
        this.timeout(60000);
        await waiter(2000);
        const provider = new ethers.providers.EtherscanProvider(null, getApiKeys(null).etherscan);
        const value = await provider.call({
            to: "0xbf320b8336b131e0270295c15478d91741f9fc11",
            data: "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
        });
        assert.ok(!!value);
    });
});

/*
describe("Test extra Etherscan operations", function() {
    let provider = new providers.EtherscanProvider();
    it("fethces the current price of ether", function() {
        this.timeout(20000);
        return provider.getEtherPrice().then(function(price) {
            assert.ok(typeof(price) === "number", "Etherscan price returns a number");
            assert.ok(price > 0.0, "Etherscan price returns non-zero");
        });
    });
    it("fetches the history", function() {
        this.timeout(100000);
        return provider.getHistory("ricmoo.firefly.eth").then(function(history) {
            assert.ok(history.length > 40, "Etherscan history returns results");
            assert.equal(history[0].hash, "0xd25f550cfdff90c086a6496a84dbb2c4577df15b1416e5b3319a3e4ebb5b25d8", "Etherscan history returns correct transaction");
        });
    });
});
*/

describe("Test Basic Authentication", function() {
    //this.retries(3);

    // https://stackoverflow.com/questions/6509278/authentication-test-servers#16756383

    type TestCase = {
        url: string;
        user: string;
        password: string;
        allowInsecureAuthentication?: boolean;
    };

    function test(name: string, url: TestCase): void {
        it("tests " + name, function() {
            this.timeout(60000);
            return ethers.utils.fetchJson(url).then((data) => {
                assert.equal(data.authenticated, true, "authenticates user");
            });
        });
    }

    let secure: TestCase = {
        url: "https://httpbin.org/basic-auth/user/passwd",
        user: "user",
        password: "passwd"
    };

    let insecure: TestCase = {
        url: "http://httpbin.org/basic-auth/user/passwd",
        user: "user",
        password: "passwd"
    };

    let insecureForced: TestCase = {
        url: "http://httpbin.org/basic-auth/user/passwd",
        user: "user",
        password: "passwd",
        allowInsecureAuthentication: true
    };

    test("secure url", secure);
    test("insecure url", insecureForced);

    it("tests insecure connections fail", function() {
        this.timeout(60000);
        assert.throws(() => {
            return ethers.utils.fetchJson(insecure);
        }, (error: Error) => {
            return ((<any>error).reason === "basic authentication requires a secure https url");
        }, "throws an exception for insecure connections");
    })
});

describe("Test API Key Formatting", function() {
    it("Infura API Key", function() {
        const projectId = "someProjectId";
        const projectSecret = "someSecretKey";

        // Test simple projectId
        const apiKeyString = ethers.providers.InfuraProvider.getApiKey(projectId);
        assert.equal(apiKeyString.apiKey, projectId);
        assert.equal(apiKeyString.projectId, projectId);
        assert.ok(apiKeyString.secretKey == null);

        // Test complex API key with projectId
        const apiKeyObject = ethers.providers.InfuraProvider.getApiKey({
            projectId
        });
        assert.equal(apiKeyObject.apiKey, projectId);
        assert.equal(apiKeyObject.projectId, projectId);
        assert.ok(apiKeyObject.projectSecret == null);

        // Test complex API key with projectId and projectSecret
        const apiKeyObject2 = ethers.providers.InfuraProvider.getApiKey({
            projectId: projectId,
            projectSecret: projectSecret
        });
        assert.equal(apiKeyObject2.apiKey, projectId);
        assert.equal(apiKeyObject2.projectId, projectId);
        assert.equal(apiKeyObject2.projectSecret, projectSecret);

        // Fails on invalid projectId type
        assert.throws(() => {
            const apiKey = ethers.providers.InfuraProvider.getApiKey({
                projectId: 1234,
                projectSecret: projectSecret
            });
            console.log(apiKey);
        }, (error: any) => {
            return (error.argument === "projectId" && error.reason === "projectSecret requires a projectId");
        });

        // Fails on invalid projectSecret type
        assert.throws(() => {
            const apiKey = ethers.providers.InfuraProvider.getApiKey({
                projectId: projectId,
                projectSecret: 1234
            });
            console.log(apiKey);
        }, (error: any) => {
            return (error.argument === "projectSecret" && error.reason === "invalid projectSecret");
        });

        {
            const provider = new ethers.providers.InfuraProvider("homestead", {
                projectId: projectId,
                projectSecret: projectSecret
            });
            assert.equal(provider.network.name, "homestead");
            assert.equal(provider.apiKey, projectId);
            assert.equal(provider.projectId, projectId);
            assert.equal(provider.projectSecret, projectSecret);
        }

        // Attempt an unsupported network
        assert.throws(() => {
            const provider = new ethers.providers.InfuraProvider("imaginary");
            console.log(provider);
        }, (error: any) => {
            return (error.argument === "network" && error.reason === "unsupported network");
        });

    });

    it("Pocket API key", function() {
        const applicationId = "someApplicationId";
        const applicationSecretKey = "someApplicationSecret";

        // Test simple applicationId
        const apiKeyString = ethers.providers.PocketProvider.getApiKey(applicationId);
        assert.equal(apiKeyString.applicationId, applicationId);
        assert.ok(apiKeyString.applicationSecretKey == null);

        // Test complex API key with applicationId
        const apiKeyObject = ethers.providers.PocketProvider.getApiKey({
            applicationId
        });
        assert.equal(apiKeyObject.applicationId, applicationId);
        assert.ok(apiKeyObject.applicationSecretKey == null);

        // Test complex API key with applicationId and applicationSecretKey
        const apiKeyObject2 = ethers.providers.PocketProvider.getApiKey({
            applicationId: applicationId,
            applicationSecretKey: applicationSecretKey
        });
        assert.equal(apiKeyObject2.applicationId, applicationId);
        assert.equal(apiKeyObject2.applicationSecretKey, applicationSecretKey);

        // Test complex API key with loadBalancer
        [ true, false ].forEach((loadBalancer) => {
            const apiKeyObject = ethers.providers.PocketProvider.getApiKey({
                applicationId, loadBalancer
            });
            assert.equal(apiKeyObject.applicationId, applicationId);
            assert.equal(apiKeyObject.loadBalancer, loadBalancer);
            assert.ok(apiKeyObject.applicationSecretKey == null);

            const apiKeyObject2 = ethers.providers.PocketProvider.getApiKey({
                applicationId, applicationSecretKey, loadBalancer
            });
            assert.equal(apiKeyObject2.applicationId, applicationId);
            assert.equal(apiKeyObject2.applicationSecretKey, applicationSecretKey);
            assert.equal(apiKeyObject2.loadBalancer, loadBalancer);
        });

        // Fails on invalid applicationId type
        assert.throws(() => {
            const apiKey = ethers.providers.PocketProvider.getApiKey({
                applicationId: 1234,
                applicationSecretKey: applicationSecretKey
            });
            console.log(apiKey);
        }, (error: any) => {
            return (error.argument === "applicationId" && error.reason === "applicationSecretKey requires an applicationId");
        });

        // Fails on invalid projectSecret type
        assert.throws(() => {
            const apiKey = ethers.providers.PocketProvider.getApiKey({
                applicationId: applicationId,
                applicationSecretKey: 1234
            });
            console.log(apiKey);
        }, (error: any) => {
            return (error.argument === "applicationSecretKey" && error.reason === "invalid applicationSecretKey");
        });

        {
            const provider = new ethers.providers.PocketProvider("homestead", {
                applicationId: applicationId,
                applicationSecretKey: applicationSecretKey
            });
            assert.equal(provider.network.name, "homestead");
            assert.equal(provider.applicationId, applicationId);
            assert.equal(provider.applicationSecretKey, applicationSecretKey);
        }

        // Attempt an unsupported network
        assert.throws(() => {
            const provider = new ethers.providers.PocketProvider("imaginary");
            console.log(provider);
        }, (error: any) => {
            return (error.argument === "network" && error.reason === "unsupported network");
        });
    });

});

describe("Test WebSocketProvider", function() {
    this.retries(3);

    async function testWebSocketProvider(provider: ethers.providers.WebSocketProvider): Promise<void> {
        await provider.destroy();
    }

    it("InfuraProvider.getWebSocketProvider", async function() {
        const provider = ethers.providers.InfuraProvider.getWebSocketProvider();
        await testWebSocketProvider(provider);
    });
});

describe("Test Events", function() {
    this.retries(3);

    async function testBlockEvent(provider: ethers.providers.Provider) {
        return new Promise((resolve, reject) => {
            let firstBlockNumber: number = null;
            const handler = (blockNumber: number) => {
                if (firstBlockNumber == null) {
                    firstBlockNumber = blockNumber;
                    return;
                }
                provider.removeListener("block", handler);
                if (firstBlockNumber + 1 === blockNumber) {
                    resolve(true);
                } else {
                    reject(new Error("blockNumber fail"));
                }
            };
            provider.on("block", handler);
        });
    }

    it("InfuraProvider", async function() {
        this.timeout(60000);
        const provider = new ethers.providers.InfuraProvider("rinkeby");
        await testBlockEvent(provider);
    });
});