From e0be5577a74a92fa13d34b463dd9bf4e3a42948f Mon Sep 17 00:00:00 2001
From: Ashton Cummings <acummings@colsa.com>
Date: Thu, 20 Sep 2018 09:26:31 -0500
Subject: [PATCH 1/2] Added error checking for when an invalid string is input.

---
 index.js | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/index.js b/index.js
index b21f71e..194bff7 100644
--- a/index.js
+++ b/index.js
@@ -63,6 +63,8 @@ function parseTimestring (string, returnUnit, opts) {
 
       totalSeconds += getSeconds(value, unit, unitValues)
     })
+  } else {
+    throw new Error(`The string [${string}] is invalid for timestring`)
   }
 
   if (returnUnit) {

From 66ed4f27fe15a024d51b266be8e36110bcace956 Mon Sep 17 00:00:00 2001
From: Ashton Cummings <acummings@colsa.com>
Date: Thu, 20 Sep 2018 12:44:56 -0500
Subject: [PATCH 2/2] Added unit tests.

---
 test.js | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/test.js b/test.js
index 7ae84f0..14d5d45 100644
--- a/test.js
+++ b/test.js
@@ -89,6 +89,14 @@ describe('timestring', () => {
     expect(() => timestring('1g')).to.throw(Error)
   })
 
+  it('throws an error when no numbers are in the timestring', () => {
+    expect(() => timestring('asdf')).to.throw(Error)
+  })
+
+  it('throws an error when numbers tail the timestring', () => {
+    expect(() => timestring('asdf123')).to.throw(Error)
+  })
+
   it('can parse a messy time string', () => {
     expect(timestring('5   D a YS    4 h   2 0     mI  nS')).to.equal(447600)
   })