diff --git a/package.json b/package.json
index 8419a86..c722b6e 100644
--- a/package.json
+++ b/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": {
diff --git a/src/index.ts b/src/index.ts
index a322365..cd74597 100644
--- a/src/index.ts
+++ b/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,
 }
diff --git a/src/token-tracker-link.ts b/src/token-tracker-link.ts
index c38ea96..17e63ab 100644
--- a/src/token-tracker-link.ts
+++ b/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 }` : ''
+  }`
 }
diff --git a/test/account-link-test.js b/test/account-link-test.js
deleted file mode 100644
index bc3f078..0000000
--- a/test/account-link-test.js
+++ /dev/null
@@ -1,15 +0,0 @@
-const assert = require('assert')
-const linkGen = require('../dist/explorer-link')
-
-describe('explorer-link', function () {
-  it('adds ropsten prefix to ropsten test network', function () {
-    const result = linkGen('hash', '3')
-    assert.notStrictEqual(result.indexOf('ropsten'), -1, 'ropsten injected')
-  })
-
-  it('adds kovan prefix to kovan test network', function () {
-    const result = linkGen('hash', '42')
-    assert.notStrictEqual(result.indexOf('kovan'), -1, 'kovan injected')
-  })
-})
-
diff --git a/test/hash-link-test.js b/test/hash-link-test.js
deleted file mode 100644
index 6353252..0000000
--- a/test/hash-link-test.js
+++ /dev/null
@@ -1,14 +0,0 @@
-const assert = require('assert')
-const linkGen = require('../dist/explorer-link')
-
-describe('explorer-link', function () {
-  it('adds ropsten prefix to ropsten test network', function () {
-    const result = linkGen('hash', '3')
-    assert.notStrictEqual(result.indexOf('ropsten'), -1, 'ropsten injected')
-  })
-
-  it('adds kovan prefix to kovan test network', function () {
-    const result = linkGen('hash', '42')
-    assert.notStrictEqual(result.indexOf('kovan'), -1, 'kovan injected')
-  })
-})
diff --git a/test/index.test.js b/test/index.test.js
new file mode 100644
index 0000000..00f0de5
--- /dev/null
+++ b/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')
+  })
+})