upgrade ci provider to github actions

upgrade dev deps (ethereumjs-block, nyc, standard)
remove ethereumjs-testing and move ethash_tests.json into test dir
use single imports for ethereumjs-util, upgrade to v7.0.2

.github/workflows/build.yml

@@ -0,0 +1,43 @@
+name: Build
+on:
+  push:
+    branches:
+      - master
+    tags:
+      - '*'
+  pull_request:
+    types: [opened, reopened, synchronize]
+jobs:
+  lint:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/setup-node@v1
+      - uses: actions/checkout@v1
+      - run: npm install
+      - run: npm run lint
+
+  coverage:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/setup-node@v1
+      - uses: actions/checkout@v1
+      - run: npm install
+      - run: npm run coverage
+      - name: Upload coverage to Coveralls
+        uses: coverallsapp/github-action@master
+        with:
+          github-token: ${{ secrets.GITHUB_TOKEN }}
+
+  test:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        node-version: [10.x, 12.x, 13.x, 14.x]
+    steps:
+      - name: Use Node.js ${{ matrix.node-version }}
+        uses: actions/setup-node@v1
+        with:
+          node-version: ${{ matrix.node-version }}
+      - uses: actions/checkout@v1
+      - run: npm install
+      - run: npm run test

.gitignore

@@ -1,2 +1,4 @@
 node_modules
-package-lock.json
+package-lock.json
+.nyc_output
+coverage

.prettierrc

@@ -0,0 +1,3 @@
+semi: false
+singleQuote: true
+trailingComma: none

README.md

@@ -1,18 +1,18 @@
 # SYNOPSIS
-[![NPM Package](https://img.shields.io/npm/v/ethashjs.svg?style=flat-square)](https://www.npmjs.org/package/ethashjs)
-[![Build Status](https://travis-ci.org/ethereumjs/ethashjs.svg?branch=master&style=flat-square)](https://travis-ci.org/ethereumjs/ethashjs)
-[![Coverage Status](https://img.shields.io/coveralls/ethereumjs/ethashjs.svg?style=flat-square)](https://coveralls.io/r/ethereumjs/ethashjs)
-[![Gitter](https://img.shields.io/gitter/room/ethereum/ethereumjs-lib.svg?style=flat-square)](https://gitter.im/ethereum/ethereumjs-lib) or #ethereumjs on freenode
 
-Implements [Ethash](https://github.com/ethereum/wiki/wiki/Ethash)
+[![NPM Package](https://img.shields.io/npm/v/ethashjs.svg)](https://www.npmjs.org/package/ethashjs)
+[![Actions Status](https://github.com/ethereumjs/ethashjs/workflows/Build/badge.svg)](https://github.com/ethereumjs/ethashjs/actions)
+[![Coverage Status](https://img.shields.io/coveralls/ethereumjs/ethashjs.svg)](https://coveralls.io/r/ethereumjs/ethashjs)
+[![Gitter](https://img.shields.io/gitter/room/ethereum/ethereumjs-lib.svg)](https://gitter.im/ethereum/ethereumjs-lib)
 
-# CONTACT
- [Scrollback](https://scrollback.io/ethereumjs/all/all-messages) or #ethereumjs on freenode
+Implements [Ethash](https://github.com/ethereum/wiki/wiki/Ethash).
 
 # INSTALL
+
 `npm install ethashjs`
 
 # USAGE
+
 ```javascript
 const Ethash = require('ethashjs')
 const Block = require('ethereumjs-block')
@@ -23,61 +23,75 @@ var cacheDB = levelup('', {
   db: memdown
 })
 
-var ethash = new Ethash(cacheDB);
-var validblockRlp = "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"
+var ethash = new Ethash(cacheDB)
+var validblockRlp =
+  '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'
 
-var validblock = new Block(new Buffer(validblockRlp, 'hex'))
+var validblock = new Block(Buffer.from(validblockRlp, 'hex'))
 
 ethash.verifyPOW(validblock, function (result) {
   console.log(result)
 })
 ```
 
-# BROWSER  
-Yep, You can [browserify](http://browserify.org/) it.
+# BROWSER
+
+Yep, you can [browserify](http://browserify.org/) it.
 
 # API
+
 - [`new Ethash([cacheDB])`](#newethashcachedb)
 - [`ethash.verifyPOW(block, cb)`](#ethashverifypowblock-cb)
 - [`ethash.mkcache(cacheSize, seed)`](#ethashmkcachecachesize-seed)
 - [`ethash.run(val, nonce, fullsize)`](#ethashrunval-nonce-fullsize)
 
 ### `new Ethash([cacheDB])`
+
 Creates a new instance of `Ethash`.
 
 **Parameters**
+
 - `cacheDB` - an instance of a levelup db which is used to store the cache(s)
 
 ### `ethash.verifyPOW(block, cb)`
+
 Verifies the POW on a block and its uncles
 
-**Parameters**  
+**Parameters**
+
 - `block` - the [block](https://github.com/ethereum/ethereumjs-block) to verify
-- `cb` - the callback which is given a `Boolean` determining the validaty of the block 
+- `cb` - the callback which is given a `Boolean` determining the validaty of the block
 
 ### `ethash.mkcache(cacheSize, seed)`
-Creates a cache. NOTE: this is automatically done for in  - [`ethash.verifyPOW(block, cb)`](#ethashverifypowblock-cb) so you do not need to use this function if you are just validating blocks
 
-**Parameters** 
+Creates a cache. NOTE: this is automatically done for in - [`ethash.verifyPOW(block, cb)`](#ethashverifypowblock-cb) so you do not need to use this function if you are just validating blocks
+
+**Parameters**
+
 - `cachSize` - the size of the cach
 - `seed` - the seed as a `Buffer`
 
-
 ### `ethash.run(val, nonce, fullsize)`
+
 Runs ethash on a give val/nonce pair. NOTE: you need to run [`ethash.mkcache(cacheSize, seed)`](#ethashverifypowcachesize-seed) first before using this function.
 
-**Parameters** 
+**Parameters**
+
 - `val` - value to run ethash on e.g. the header hash
 - `nonce` - the nonce used for this hash attempt
 - `fullsize` - the fullsize of the cache.
 
-**Return**
-and `Object` containing 
-- `hash`  - the hash of the value
+**Returns**
+
+An `Object` containing:
+
+- `hash` - the hash of the value
 - `mix` - the mis result
 
 # TESTS
+
 `npm test`
 
 # LICENSE
+
 [MPL-2.0](https://www.mozilla.org/MPL/2.0/)

example/example.js

@@ -2,7 +2,7 @@ const Ethash = require('../index.js')
 
 var ethash = new Ethash()
 // make the 1000 cache items with a seed of 0 * 32
-ethash.mkcache(1000, new Buffer(32).fill(0))
+ethash.mkcache(1000, Buffer.alloc(32).fill(0))
 
-var result = ethash.run(new Buffer('test'), new Buffer([0]), 1000)
+var result = ethash.run(Buffer.from('test'), Buffer.from([0]), 1000)
 console.log(result.hash.toString('hex'))

example/rawExample.js

@@ -8,7 +8,7 @@ Ethash.prototype.verifySubmit = function (number, headerHash, nonce, cb) {
   this.loadEpoc(number, function () {
     console.log('EPOC set')
     console.log(self.seed.toString('hex'))
-    var a = self.run(headerHash, new Buffer(nonce, 'hex'))
+    var a = self.run(headerHash, Buffer.from(nonce, 'hex'))
     cb(a.hash)
   })
 }
@@ -19,7 +19,10 @@ var cacheDB = levelup('', {
 
 var ethash = new Ethash(cacheDB)
 
-var header = Buffer('0e2887aa1a0668bf8254d1a6ae518927de99e3e5d7f30fd1f16096e2608fe05e', 'hex')
+var header = Buffer.from(
+  '0e2887aa1a0668bf8254d1a6ae518927de99e3e5d7f30fd1f16096e2608fe05e',
+  'hex'
+)
 
 ethash.verifySubmit(35414, header, 'e360b6170c229d15', function (result) {
   console.log(result.toString('hex'))