Add sol-cover implementation

11 files changed, 99 insertions, 52 deletions

diff --git a/packages/subproviders/src/globals.d.ts b/packages/subproviders/src/globals.d.ts
index d59ee9e67..fc0cdf038 100644
--- a/packages/subproviders/src/globals.d.ts
+++ b/packages/subproviders/src/globals.d.ts
@@ -134,3 +134,18 @@ declare module 'hdkey' {
     }
     export = HDNode;
 }
+
+// hdkey declarations
+declare module 'ganache-core' {
+    import * as Web3 from 'web3';
+    export interface GanacheOpts {
+        verbose: boolean;
+        logger: {
+            log(msg: string): void;
+        };
+        port: number;
+        networkId: number;
+        mnemonic: string;
+    }
+    export function provider(opts: GanacheOpts): Web3.Provider;
+}
diff --git a/packages/subproviders/src/index.ts b/packages/subproviders/src/index.ts
index e22b6f5f3..cafb50fe5 100644
--- a/packages/subproviders/src/index.ts
+++ b/packages/subproviders/src/index.ts
@@ -2,12 +2,15 @@ import Eth from '@ledgerhq/hw-app-eth';
 import TransportU2F from '@ledgerhq/hw-transport-u2f';
 
 import { LedgerEthereumClient } from './types';
+export { Callback, NextCallback } from './types';
 
 export { EmptyWalletSubprovider } from './subproviders/empty_wallet_subprovider';
 export { FakeGasEstimateSubprovider } from './subproviders/fake_gas_estimate_subprovider';
 export { InjectedWeb3Subprovider } from './subproviders/injected_web3';
 export { RedundantRPCSubprovider } from './subproviders/redundant_rpc';
 export { LedgerSubprovider } from './subproviders/ledger';
+export { GanacheSubprovider } from './subproviders/ganache';
+export { Subprovider } from './subproviders/subprovider';
 export { NonceTrackerSubprovider } from './subproviders/nonce_tracker';
 export { ECSignature, LedgerWalletSubprovider, LedgerCommunicationClient, NonceSubproviderErrors } from './types';
 
diff --git a/packages/subproviders/src/subproviders/empty_wallet_subprovider.ts b/packages/subproviders/src/subproviders/empty_wallet_subprovider.ts
index 8c1fdfdb2..f5983dd9b 100644
--- a/packages/subproviders/src/subproviders/empty_wallet_subprovider.ts
+++ b/packages/subproviders/src/subproviders/empty_wallet_subprovider.ts
@@ -1,14 +1,20 @@
-import { JSONRPCPayload } from '@0xproject/types';
+import * as Web3 from 'web3';
+
+import { Subprovider } from './subprovider';
 
 /*
  * This class implements the web3-provider-engine subprovider interface and returns
  * that the provider has no addresses when queried.
  * Source: https://github.com/MetaMask/provider-engine/blob/master/subproviders/subprovider.js
  */
-export class EmptyWalletSubprovider {
+export class EmptyWalletSubprovider extends Subprovider {
     // This method needs to be here to satisfy the interface but linter wants it to be static.
     // tslint:disable-next-line:prefer-function-over-method
-    public handleRequest(payload: JSONRPCPayload, next: () => void, end: (err: Error | null, result: any) => void) {
+    public handleRequest(
+        payload: Web3.JSONRPCRequestPayload,
+        next: () => void,
+        end: (err: Error | null, result: any) => void,
+    ) {
         switch (payload.method) {
             case 'eth_accounts':
                 end(null, []);
@@ -19,9 +25,4 @@ export class EmptyWalletSubprovider {
                 return;
         }
     }
-    // Required to implement this method despite not needing it for this subprovider
-    // tslint:disable-next-line:prefer-function-over-method
-    public setEngine(engine: any) {
-        // noop
-    }
 }
diff --git a/packages/subproviders/src/subproviders/fake_gas_estimate_subprovider.ts b/packages/subproviders/src/subproviders/fake_gas_estimate_subprovider.ts
index b455a0ed7..2421dcd02 100644
--- a/packages/subproviders/src/subproviders/fake_gas_estimate_subprovider.ts
+++ b/packages/subproviders/src/subproviders/fake_gas_estimate_subprovider.ts
@@ -1,4 +1,6 @@
-import { JSONRPCPayload } from '@0xproject/types';
+import * as Web3 from 'web3';
+
+import { Subprovider } from './subprovider';
 
 /*
  * This class implements the web3-provider-engine subprovider interface and returns
@@ -8,14 +10,19 @@ import { JSONRPCPayload } from '@0xproject/types';
  * Source: https://github.com/trufflesuite/ganache-cli/issues/437
  * Source: https://github.com/MetaMask/provider-engine/blob/master/subproviders/subprovider.js
  */
-export class FakeGasEstimateSubprovider {
+export class FakeGasEstimateSubprovider extends Subprovider {
     private _constantGasAmount: number;
     constructor(constantGasAmount: number) {
+        super();
         this._constantGasAmount = constantGasAmount;
     }
     // This method needs to be here to satisfy the interface but linter wants it to be static.
     // tslint:disable-next-line:prefer-function-over-method
-    public handleRequest(payload: JSONRPCPayload, next: () => void, end: (err: Error | null, result: any) => void) {
+    public handleRequest(
+        payload: Web3.JSONRPCRequestPayload,
+        next: () => void,
+        end: (err: Error | null, result: any) => void,
+    ) {
         switch (payload.method) {
             case 'eth_estimateGas':
                 end(null, this._constantGasAmount);
@@ -26,9 +33,4 @@ export class FakeGasEstimateSubprovider {
                 return;
         }
     }
-    // Required to implement this method despite not needing it for this subprovider
-    // tslint:disable-next-line:prefer-function-over-method
-    public setEngine(engine: any) {
-        // noop
-    }
 }
diff --git a/packages/subproviders/src/subproviders/ganache.ts b/packages/subproviders/src/subproviders/ganache.ts
new file mode 100644
index 000000000..a979aecf4
--- /dev/null
+++ b/packages/subproviders/src/subproviders/ganache.ts
@@ -0,0 +1,28 @@
+import * as Ganache from 'ganache-core';
+import * as Web3 from 'web3';
+
+import { Subprovider } from './subprovider';
+
+/*
+ * This class implements the web3-provider-engine subprovider interface and returns
+ * the provider connected to a in-process ganache.
+ * Source: https://github.com/MetaMask/provider-engine/blob/master/subproviders/subprovider.js
+ */
+export class GanacheSubprovider extends Subprovider {
+    private _ganacheProvider: Web3.Provider;
+    constructor(opts: any) {
+        super();
+        this._ganacheProvider = Ganache.provider(opts);
+    }
+    // This method needs to be here to satisfy the interface but linter wants it to be static.
+    // tslint:disable-next-line:prefer-function-over-method
+    public handleRequest(
+        payload: Web3.JSONRPCRequestPayload,
+        next: () => void,
+        end: (err: Error | null, result: any) => void,
+    ) {
+        this._ganacheProvider.sendAsync(payload, (err: Error | null, result: any) => {
+            end(err, result && result.result);
+        });
+    }
+}
diff --git a/packages/subproviders/src/subproviders/injected_web3.ts b/packages/subproviders/src/subproviders/injected_web3.ts
index 0d70180c4..6d4e2b27b 100644
--- a/packages/subproviders/src/subproviders/injected_web3.ts
+++ b/packages/subproviders/src/subproviders/injected_web3.ts
@@ -1,5 +1,7 @@
 import * as _ from 'lodash';
-import Web3 = require('web3');
+import * as Web3 from 'web3';
+
+import { Subprovider } from './subprovider';
 
 /*
  * This class implements the web3-provider-engine subprovider interface and forwards
@@ -7,9 +9,10 @@ import Web3 = require('web3');
  * provider instance in their browser.
  * Source: https://github.com/MetaMask/provider-engine/blob/master/subproviders/subprovider.js
  */
-export class InjectedWeb3Subprovider {
+export class InjectedWeb3Subprovider extends Subprovider {
     private _injectedWeb3: Web3;
     constructor(subprovider: Web3.Provider) {
+        super();
         this._injectedWeb3 = new Web3(subprovider);
     }
     public handleRequest(
@@ -40,11 +43,4 @@ export class InjectedWeb3Subprovider {
                 return;
         }
     }
-    // Required to implement this method despite not needing it for this subprovider
-    // The engine argument type should be Web3ProviderEngine, but we've decided to keep it as type any
-    // to remove the provider engine depdency given this method is a noop
-    // tslint:disable-next-line:prefer-function-over-method
-    public setEngine(engine: any) {
-        // noop
-    }
 }
diff --git a/packages/subproviders/src/subproviders/ledger.ts b/packages/subproviders/src/subproviders/ledger.ts
index 0a84caae3..03f7ef493 100644
--- a/packages/subproviders/src/subproviders/ledger.ts
+++ b/packages/subproviders/src/subproviders/ledger.ts
@@ -5,7 +5,7 @@ import ethUtil = require('ethereumjs-util');
 import HDNode = require('hdkey');
 import * as _ from 'lodash';
 import Semaphore from 'semaphore-async-await';
-import Web3 = require('web3');
+import * as Web3 from 'web3';
 
 import {
     LedgerEthereumClient,
@@ -147,7 +147,7 @@ export class LedgerSubprovider extends Subprovider {
         hdKey.publicKey = new Buffer(ledgerResponse.publicKey, 'hex');
         hdKey.chainCode = new Buffer(ledgerResponse.chainCode, 'hex');
 
-        const accounts = [];
+        const accounts: string[] = [];
         for (let i = 0; i < numberOfAccounts; i++) {
             const derivedHDNode = hdKey.derive(`m/${i + this._derivationPathIndex}`);
             const derivedPublicKey = derivedHDNode.publicKey;
diff --git a/packages/subproviders/src/subproviders/nonce_tracker.ts b/packages/subproviders/src/subproviders/nonce_tracker.ts
index d967d40f2..82eab4a9a 100644
--- a/packages/subproviders/src/subproviders/nonce_tracker.ts
+++ b/packages/subproviders/src/subproviders/nonce_tracker.ts
@@ -1,12 +1,12 @@
 import * as _ from 'lodash';
 
+import { BlockParamLiteral } from '@0xproject/types';
 import EthereumTx = require('ethereumjs-tx');
 import ethUtil = require('ethereumjs-util');
+import * as Web3 from 'web3';
 import providerEngineUtils = require('web3-provider-engine/util/rpc-cache-utils');
 
-import { BlockParamLiteral } from '@0xproject/types';
-
-import { ErrorCallback, JSONRPCPayload, NonceSubproviderErrors, OptionalNextCallback } from '../types';
+import { Callback, ErrorCallback, NextCallback, NonceSubproviderErrors } from '../types';
 
 import { Subprovider } from './subprovider';
 
@@ -19,7 +19,7 @@ const NONCE_TOO_LOW_ERROR_MESSAGE = 'Transaction nonce is too low';
 */
 export class NonceTrackerSubprovider extends Subprovider {
     private _nonceCache: { [address: string]: string } = {};
-    private static _reconstructTransaction(payload: JSONRPCPayload): EthereumTx {
+    private static _reconstructTransaction(payload: Web3.JSONRPCRequestPayload): EthereumTx {
         const raw = payload.params[0];
         if (_.isUndefined(raw)) {
             throw new Error(NonceSubproviderErrors.EmptyParametersFound);
@@ -28,7 +28,7 @@ export class NonceTrackerSubprovider extends Subprovider {
         const transaction = new EthereumTx(rawData);
         return transaction;
     }
-    private static _determineAddress(payload: JSONRPCPayload): string {
+    private static _determineAddress(payload: Web3.JSONRPCRequestPayload): string {
         let address: string;
         switch (payload.method) {
             case 'eth_getTransactionCount':
@@ -48,7 +48,11 @@ export class NonceTrackerSubprovider extends Subprovider {
     }
     // Required to implement this public interface which doesn't conform to our linting rule.
     // tslint:disable-next-line:async-suffix
-    public async handleRequest(payload: JSONRPCPayload, next: OptionalNextCallback, end: ErrorCallback): Promise<void> {
+    public async handleRequest(
+        payload: Web3.JSONRPCRequestPayload,
+        next: NextCallback,
+        end: ErrorCallback,
+    ): Promise<void> {
         switch (payload.method) {
             case 'eth_getTransactionCount':
                 const requestDefaultBlock = providerEngineUtils.blockTagForPayload(payload);
@@ -58,7 +62,7 @@ export class NonceTrackerSubprovider extends Subprovider {
                     if (!_.isUndefined(cachedResult)) {
                         return end(null, cachedResult);
                     } else {
-                        return next((requestError: Error | null, requestResult: any, cb: any) => {
+                        return next((requestError: Error | null, requestResult: any, cb: Callback) => {
                             if (_.isNull(requestError)) {
                                 this._nonceCache[address] = requestResult as string;
                             }
@@ -69,7 +73,7 @@ export class NonceTrackerSubprovider extends Subprovider {
                     return next();
                 }
             case 'eth_sendRawTransaction':
-                return next((sendTransactionError: Error | null, txResult: any, cb: any) => {
+                return next((sendTransactionError: Error | null, txResult: any, cb: Callback) => {
                     if (_.isNull(sendTransactionError)) {
                         this._handleSuccessfulTransaction(payload);
                     } else {
@@ -81,7 +85,7 @@ export class NonceTrackerSubprovider extends Subprovider {
                 return next();
         }
     }
-    private _handleSuccessfulTransaction(payload: JSONRPCPayload): void {
+    private _handleSuccessfulTransaction(payload: Web3.JSONRPCRequestPayload): void {
         const address = NonceTrackerSubprovider._determineAddress(payload);
         const transaction = NonceTrackerSubprovider._reconstructTransaction(payload);
         // Increment the nonce from the previous successfully submitted transaction
@@ -94,7 +98,7 @@ export class NonceTrackerSubprovider extends Subprovider {
         const nextPrefixedHexNonce = `0x${nextHexNonce}`;
         this._nonceCache[address] = nextPrefixedHexNonce;
     }
-    private _handleSendTransactionError(payload: JSONRPCPayload, err: Error): void {
+    private _handleSendTransactionError(payload: Web3.JSONRPCRequestPayload, err: Error): void {
         const address = NonceTrackerSubprovider._determineAddress(payload);
         if (this._nonceCache[address] && _.includes(err.message, NONCE_TOO_LOW_ERROR_MESSAGE)) {
             delete this._nonceCache[address];
diff --git a/packages/subproviders/src/subproviders/redundant_rpc.ts b/packages/subproviders/src/subproviders/redundant_rpc.ts
index 5a94f93d7..0df2f91f4 100644
--- a/packages/subproviders/src/subproviders/redundant_rpc.ts
+++ b/packages/subproviders/src/subproviders/redundant_rpc.ts
@@ -1,16 +1,15 @@
 import { promisify } from '@0xproject/utils';
 import * as _ from 'lodash';
+import * as Web3 from 'web3';
 import RpcSubprovider = require('web3-provider-engine/subproviders/rpc');
 
-import { JSONRPCPayload } from '../types';
-
 import { Subprovider } from './subprovider';
 
 export class RedundantRPCSubprovider extends Subprovider {
     private _rpcs: RpcSubprovider[];
     private static async _firstSuccessAsync(
         rpcs: RpcSubprovider[],
-        payload: JSONRPCPayload,
+        payload: Web3.JSONRPCRequestPayload,
         next: () => void,
     ): Promise<any> {
         let lastErr: Error | undefined;
@@ -38,7 +37,7 @@ export class RedundantRPCSubprovider extends Subprovider {
     // Required to implement this public interface which doesn't conform to our linting rule.
     // tslint:disable-next-line:async-suffix
     public async handleRequest(
-        payload: JSONRPCPayload,
+        payload: Web3.JSONRPCRequestPayload,
         next: () => void,
         end: (err: Error | null, data?: any) => void,
     ): Promise<void> {
diff --git a/packages/subproviders/src/subproviders/subprovider.ts b/packages/subproviders/src/subproviders/subprovider.ts
index 6435c9f65..d4e0de67a 100644
--- a/packages/subproviders/src/subproviders/subprovider.ts
+++ b/packages/subproviders/src/subproviders/subprovider.ts
@@ -1,7 +1,5 @@
 import promisify = require('es6-promisify');
-import Web3 = require('web3');
-
-import { JSONRPCPayload } from '../types';
+import * as Web3 from 'web3';
 /*
  * A version of the base class Subprovider found in providerEngine
  * This one has an async/await `emitPayloadAsync` and also defined types.
@@ -19,7 +17,9 @@ export class Subprovider {
         // 16 digits
         return datePart + extraPart;
     }
-    private static _createFinalPayload(payload: JSONRPCPayload): Web3.JSONRPCRequestPayload {
+    private static _createFinalPayload(
+        payload: Partial<Web3.JSONRPCRequestPayload> & { method: string },
+    ): Web3.JSONRPCRequestPayload {
         const finalPayload = {
             // defaults
             id: Subprovider._getRandomId(),
@@ -32,7 +32,9 @@ export class Subprovider {
     public setEngine(engine: any): void {
         this._engine = engine;
     }
-    public async emitPayloadAsync(payload: JSONRPCPayload): Promise<any> {
+    public async emitPayloadAsync(
+        payload: Partial<Web3.JSONRPCRequestPayload> & { method: string },
+    ): Promise<Web3.JSONRPCResponsePayload> {
         const finalPayload = Subprovider._createFinalPayload(payload);
         const response = await promisify(this._engine.sendAsync, this._engine)(finalPayload);
         return response;
diff --git a/packages/subproviders/src/types.ts b/packages/subproviders/src/types.ts
index f49ac6107..543da5947 100644
--- a/packages/subproviders/src/types.ts
+++ b/packages/subproviders/src/types.ts
@@ -91,11 +91,6 @@ export interface PartialTxParams {
 
 export type DoneCallback = (err?: Error) => void;
 
-export interface JSONRPCPayload {
-    params: any[];
-    method: string;
-}
-
 export interface LedgerCommunication {
     close_async: () => Promise<void>;
 }
@@ -118,5 +113,7 @@ export enum NonceSubproviderErrors {
     CannotDetermineAddressFromPayload = 'CANNOT_DETERMINE_ADDRESS_FROM_PAYLOAD',
 }
 
-export type OptionalNextCallback = (callback?: (err: Error | null, result: any, cb: any) => void) => void;
 export type ErrorCallback = (err: Error | null, data?: any) => void;
+export type Callback = () => void;
+export type OnNextCompleted = (err: Error | null, result: any, cb: Callback) => void;
+export type NextCallback = (callback?: OnNextCompleted) => void;