add tests for increased coverage

.github/workflows/account-coverage.yml

@@ -10,10 +10,10 @@ jobs:
 
       - uses: actions/checkout@v1
       - run: npm install
+
       - run: npm run coverage
-      - run: npm run coveralls
 
-      - name: Post coverage data to coveralls.io for analysis
+      - name: Post coverage to Coveralls
         uses: coverallsapp/github-action@master
         with:
           github-token: ${{ secrets.GITHUB_TOKEN }}

package.json

@@ -14,8 +14,7 @@
   "scripts": {
     "build": "ethereumjs-config-build",
     "prepublishOnly": "npm run test && npm run build",
-    "coverage": "ethereumjs-config-coverage",
-    "coveralls": "ethereumjs-config-coveralls",
+    "coverage": "npx nyc npm run test",
     "docs:build": "typedoc --out docs --mode file --readme none --theme markdown --mdEngine github --excludeNotExported src",
     "format": "ethereumjs-config-format",
     "format:fix": "ethereumjs-config-format-fix",
@@ -24,7 +23,7 @@
     "tsc": "ethereumjs-config-tsc",
     "lint": "ethereumjs-config-lint",
     "lint:fix": "ethereumjs-config-lint-fix",
-    "test": "ts-node node_modules/tape/bin/tape ./test/index.ts"
+    "test": "npx tape -r ts-node/register test/*.spec.ts"
   },
   "husky": {
     "hooks": {
@@ -54,9 +53,9 @@
     "@types/bn.js": "^4.11.3",
     "@types/node": "^11.9.4",
     "@types/tape": "^4.2.33",
-    "coveralls": "^3.0.0",
     "husky": "^2.1.0",
-    "nyc": "^13.2.0",
+    "merkle-patricia-tree": "^3.0.0",
+    "nyc": "^15.0.0",
     "prettier": "^1.15.3",
     "tape": "^4.10.1",
     "ts-node": "^7.0.1",

src/index.ts

@@ -52,7 +52,7 @@ export default class Account {
    * ]
    *
    * var data = {
-   *   nonce: '',
+   *   nonce: '0x0',
    *   balance: '0x03e7',
    *   stateRoot: '0x56e81f171bcc55a6ff8345e692c0f86e5b48e01b996cadc001622fb5e363b421',
    *   codeHash: '0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470',
@@ -136,7 +136,7 @@ export default class Account {
    * )
    *
    * let raw = {
-   * nonce: '',
+   * nonce: '0x0',
    * balance: '0x03e7',
    * stateRoot: '0x56e81f171bcc55a6ff8345e692c0f86e5b48e01b996cadc001622fb5e363b421',
    * codeHash: '0xb30fb32201fe0486606ad451e1a61e2ae1748343cd3d411ed992ffcc0774edd4',
@@ -190,10 +190,10 @@ export default class Account {
    * ~~~
    * // Requires manual merkle-patricia-tree install
    * const SecureTrie = require('merkle-patricia-tree/secure')
-   *  const Account = require('./index.js').default
+   * const Account = require('./index.js').default
    *
    * let raw = {
-   *   nonce: '',
+   *   nonce: '0x0',
    *   balance: '0x03e7',
    *   stateRoot: '0x56e81f171bcc55a6ff8345e692c0f86e5b48e01b996cadc001622fb5e363b421',
    *   codeHash: '0xb30fb32201fe0486606ad451e1a61e2ae1748343cd3d411ed992ffcc0774edd4',
@@ -203,7 +203,7 @@ export default class Account {
    * let key = Buffer.from('0000000000000000000000000000000000000000', 'hex')
    * let value = Buffer.from('01', 'hex')
    *
-   * account.setStorage(trie, key, value, function(err, value) {
+   * account.setStorage(trie, key, value, function(err) {
    *   account.getStorage(trie, key, function(err, value) {
    *     console.log(`Value ${value.toString('hex')} set and retrieved from trie.`)
    *   })
@@ -215,11 +215,11 @@ export default class Account {
    * @param val
    * @param cb
    */
-  setStorage(trie: Trie, key: Buffer | string, val: Buffer | string, cb: () => void) {
+  setStorage(trie: Trie, key: Buffer | string, val: Buffer | string, cb: TriePutCb) {
     const t = trie.copy()
     t.root = this.stateRoot
     t.put(key, val, (err: any) => {
-      if (err) return cb()
+      if (err) return cb(err)
       this.stateRoot = t.root
       cb()
     })

test/index.ts → test/index.spec.ts

@@ -1,5 +1,7 @@
 import * as tape from 'tape'
+import * as rlp from 'rlp'
 import Account from '../src/index'
+const SecureTrie = require('merkle-patricia-tree/secure')
 
 tape('empty constructor', function(tester) {
   const it = tester.test
@@ -90,12 +92,19 @@ tape('constructor with RLP', function(tester) {
 tape('serialize', function(tester) {
   const it = tester.test
   it('should work', function(t) {
-    const account = new Account(
-      'f84602820384a056e81f171bcc55a6ff8345e692c0f86e5b48e01b996cadc001622fb5e363b421a0c5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470',
-    )
-    t.equal(
-      account.serialize().toString('hex'),
-      'f84602820384a056e81f171bcc55a6ff8345e692c0f86e5b48e01b996cadc001622fb5e363b421a0c5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470',
+    const raw = {
+      nonce: '0x01',
+      balance: '0x0042',
+      stateRoot: '0x56e81f171bcc55a6ff8345e692c0f86e5b48e01b996cadc001622fb5e363b421',
+      codeHash: '0xc5d2461236f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470',
+    }
+    const account = new Account(raw)
+    t.equals(
+      Buffer.compare(
+        account.serialize(),
+        rlp.encode([raw.nonce, raw.balance, raw.stateRoot, raw.codeHash]),
+      ),
+      0,
     )
     t.end()
   })
@@ -122,3 +131,97 @@ tape('isContract', function(tester) {
     t.end()
   })
 })
+
+tape('setCode && getCode', tester => {
+  const it = tester.test
+  it('should set and get code', t => {
+    const code = Buffer.from(
+      '73095e7baea6a6c7c4c2dfeb977efac326af552d873173095e7baea6a6c7c4c2dfeb977efac326af552d873157',
+      'hex',
+    )
+
+    const raw = {
+      nonce: '0x0',
+      balance: '0x03e7',
+      stateRoot: '0x56e81f171bcc55a6ff8345e692c0f86e5b48e01b996cadc001622fb5e363b421',
+      codeHash: '0xb30fb32201fe0486606ad451e1a61e2ae1748343cd3d411ed992ffcc0774edd4',
+    }
+    const account = new Account(raw)
+    const trie = new SecureTrie()
+
+    account.setCode(trie, code, function(err, codeHash) {
+      account.getCode(trie, function(err, codeRetrieved) {
+        t.equals(Buffer.compare(code, codeRetrieved!), 0)
+        t.end()
+      })
+    })
+  })
+  it('should not get code if is not contract', t => {
+    const raw = {
+      nonce: '0x0',
+      balance: '0x03e7',
+    }
+    const account = new Account(raw)
+    const trie = new SecureTrie()
+    account.getCode(trie, function(err, code) {
+      t.equals(Buffer.compare(code!, Buffer.alloc(0)), 0)
+      t.end()
+    })
+  })
+  it('should set empty code', t => {
+    const raw = {
+      nonce: '0x0',
+      balance: '0x03e7',
+    }
+    const account = new Account(raw)
+    const trie = new SecureTrie()
+    const code = Buffer.alloc(0)
+    account.setCode(trie, code, function(err, codeHash) {
+      t.equals(Buffer.compare(codeHash, Buffer.alloc(0)), 0)
+      t.end()
+    })
+  })
+})
+
+tape('setStorage && getStorage', tester => {
+  const it = tester.test
+  it('should set and get storage', t => {
+    const raw = {
+      nonce: '0x0',
+      balance: '0x03e7',
+      stateRoot: '0x56e81f171bcc55a6ff8345e692c0f86e5b48e01b996cadc001622fb5e363b421',
+      codeHash: '0xb30fb32201fe0486606ad451e1a61e2ae1748343cd3d411ed992ffcc0774edd4',
+    }
+    const account = new Account(raw)
+    const trie = new SecureTrie()
+    const key = Buffer.from('0000000000000000000000000000000000000000', 'hex')
+    const value = Buffer.from('01', 'hex')
+
+    account.setStorage(trie, key, value, err => {
+      account.getStorage(trie, key, (err, valueRetrieved) => {
+        t.equals(Buffer.compare(value, valueRetrieved!), 0)
+        t.end()
+      })
+    })
+  })
+})
+
+tape('isEmpty', tester => {
+  const it = tester.test
+  it('should return true for an empty account', t => {
+    const account = new Account()
+    t.ok(account.isEmpty())
+    t.end()
+  })
+  it('should return false for a non-empty account', t => {
+    const raw = {
+      nonce: '0x01',
+      balance: '0x0042',
+      stateRoot: '0x56e81f171bcc55a6ff8345e692c0f86e5b48e01b996cadc001622fb5e363b421',
+      codeHash: '0xc5d2461236f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470',
+    }
+    const account = new Account(raw)
+    t.notOk(account.isEmpty())
+    t.end()
+  })
+})