Fix token tracker link export, update tests

package.json

@@ -12,7 +12,7 @@
   ],
   "scripts": {
     "build": "rm -rf dist/* && tsc",
-    "test": "yarn build && mocha",
+    "test": "yarn build && mocha test",
     "prepublishOnly": "yarn test"
   },
   "repository": {

src/index.ts

@@ -1,9 +1,9 @@
 import createExplorerLink from './explorer-link'
 import createAccountLink from './account-link'
-import createTokenTrackerLink './token-tracker-link'
+import createTokenTrackerLink from './token-tracker-link'
 
 export = {
   createExplorerLink,
   createAccountLink,
-  createTokenTrackerLink
+  createTokenTrackerLink,
 }

src/token-tracker-link.ts

@@ -1,6 +1,12 @@
 import prefixForNetwork from './prefix-for-network'
 
-export = function getTokenTrackerLink(tokenAddress: string, network: string, holderAddress?: string): string {
+export = function getTokenTrackerLink(
+  tokenAddress: string,
+  network: string,
+  holderAddress?: string,
+): string {
   const prefix = prefixForNetwork(network)
-  return `https://${prefix}etherscan.io/token/${tokenAddress}${ holderAddress ? `?a=${ holderAddress }` : '' }`
+  return `https://${prefix}etherscan.io/token/${tokenAddress}${
+    holderAddress ? `?a=${ holderAddress }` : ''
+  }`
 }

test/index.test.js

@@ -0,0 +1,59 @@
+const assert = require('assert')
+const {
+  createAccountLink,
+  createExplorerLink,
+  createTokenTrackerLink,
+} = require('../dist')
+
+// `https://${prefix}etherscan.io/address/${address}`
+describe('account-link', function () {
+  it('should handle mainnet correctly', function () {
+    const result = createAccountLink('foo', '1')
+    assert.strictEqual(result, 'https://etherscan.io/address/foo', 'should handle mainnet')
+  })
+
+  it('should handle ropsten correctly', function () {
+    const result = createAccountLink('foo', '3')
+    assert.strictEqual(result, 'https://ropsten.etherscan.io/address/foo', 'should handle ropsten')
+  })
+})
+
+// `https://${prefix}etherscan.io/tx/${hash}`
+describe('explorer-link', function () {
+  it('should handle mainnet correctly', function () {
+    const result = createExplorerLink('foo', '1')
+    assert.strictEqual(result, 'https://etherscan.io/tx/foo', 'should handle mainnet')
+  })
+
+  it('should handle ropsten correctly', function () {
+    const result = createExplorerLink('foo', '3')
+    assert.strictEqual(result, 'https://ropsten.etherscan.io/tx/foo', 'should handle ropsten')
+  })
+})
+
+/**
+ * `https://${prefix}etherscan.io/token/${tokenAddress}${
+ *    holderAddress ? `?a=${ holderAddress }` : ''
+ *  }`
+ */
+describe('token-tracker-link', function () {
+  it('should handle mainnet correctly (no account)', function () {
+    const result = createTokenTrackerLink('foo', '1')
+    assert.strictEqual(result, 'https://etherscan.io/token/foo', 'should handle mainnet')
+  })
+
+  it('should handle ropsten correctly (no account)', function () {
+    const result = createTokenTrackerLink('foo', '3')
+    assert.strictEqual(result, 'https://ropsten.etherscan.io/token/foo', 'should handle ropsten')
+  })
+
+  it('should handle mainnet correctly (account)', function () {
+    const result = createTokenTrackerLink('foo', '1', '0xabc')
+    assert.strictEqual(result, 'https://etherscan.io/token/foo?a=0xabc', 'should handle mainnet')
+  })
+
+  it('should handle ropsten correctly (account)', function () {
+    const result = createTokenTrackerLink('foo', '3', '0xabc')
+    assert.strictEqual(result, 'https://ropsten.etherscan.io/token/foo?a=0xabc', 'should handle ropsten')
+  })
+})