From 29a03634991f5207c7e21f415323e654db431a7b Mon Sep 17 00:00:00 2001
From: Nathan Harrenstein <nathan.harrenstein@gmail.com>
Date: Tue, 18 Jul 2017 12:22:50 -0700
Subject: [PATCH 01/14] Set up project.

---
 lab-nathan/.eslintignore   |   5 ++
 lab-nathan/.eslintrc       |  23 +++++++
 lab-nathan/.gitignore      | 136 +++++++++++++++++++++++++++++++++++++
 lab-nathan/lib/fp.js       |   0
 lab-nathan/package.json    |  17 +++++
 lab-nathan/test/fp-test.js |   0
 6 files changed, 181 insertions(+)
 create mode 100644 lab-nathan/.eslintignore
 create mode 100644 lab-nathan/.eslintrc
 create mode 100644 lab-nathan/.gitignore
 create mode 100644 lab-nathan/lib/fp.js
 create mode 100644 lab-nathan/package.json
 create mode 100644 lab-nathan/test/fp-test.js

diff --git a/lab-nathan/.eslintignore b/lab-nathan/.eslintignore
new file mode 100644
index 0000000..05b1cf3
--- /dev/null
+++ b/lab-nathan/.eslintignore
@@ -0,0 +1,5 @@
+**/node_modules/*
+**/vendor/*
+**/*.min.js
+**/coverage/*
+**/build/*
diff --git a/lab-nathan/.eslintrc b/lab-nathan/.eslintrc
new file mode 100644
index 0000000..c8dfef7
--- /dev/null
+++ b/lab-nathan/.eslintrc
@@ -0,0 +1,23 @@
+{
+  "rules": {
+    "no-console": "off",
+    "indent": [ "error", 2 ],
+    "quotes": [ "error", "single" ],
+    "semi": ["error", "always"],
+    "linebreak-style": [ "error", "unix" ]
+  },
+  "env": {
+    "es6": true,
+    "node": true,
+    "mocha": true,
+    "jasmine": true
+  },
+  "parserOptions": {
+    "ecmaFeatures": {
+      "modules": true,
+      "experimentalObjectRestSpread": true,
+      "impliedStrict": true
+    }
+  },
+  "extends": "eslint:recommended"
+}
diff --git a/lab-nathan/.gitignore b/lab-nathan/.gitignore
new file mode 100644
index 0000000..345130c
--- /dev/null
+++ b/lab-nathan/.gitignore
@@ -0,0 +1,136 @@
+# Created by https://www.gitignore.io/api/osx,vim,node,macos,windows
+
+### macOS ###
+*.DS_Store
+.AppleDouble
+.LSOverride
+
+# Icon must end with two \r
+Icon
+
+# Thumbnails
+._*
+
+# Files that might appear in the root of a volume
+.DocumentRevisions-V100
+.fseventsd
+.Spotlight-V100
+.TemporaryItems
+.Trashes
+.VolumeIcon.icns
+.com.apple.timemachine.donotpresent
+
+# Directories potentially created on remote AFP share
+.AppleDB
+.AppleDesktop
+Network Trash Folder
+Temporary Items
+.apdisk
+
+### Node ###
+# Logs
+logs
+*.log
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+
+# Runtime data
+pids
+*.pid
+*.seed
+*.pid.lock
+
+# Directory for instrumented libs generated by jscoverage/JSCover
+lib-cov
+
+# Coverage directory used by tools like istanbul
+coverage
+
+# nyc test coverage
+.nyc_output
+
+# Grunt intermediate storage (http://gruntjs.com/creating-plugins#storing-task-files)
+.grunt
+
+# Bower dependency directory (https://bower.io/)
+bower_components
+
+# node-waf configuration
+.lock-wscript
+
+# Compiled binary addons (http://nodejs.org/api/addons.html)
+build/Release
+
+# Dependency directories
+node_modules/
+jspm_packages/
+
+# Typescript v1 declaration files
+typings/
+
+# Optional npm cache directory
+.npm
+
+# Optional eslint cache
+.eslintcache
+
+# Optional REPL history
+.node_repl_history
+
+# Output of 'npm pack'
+*.tgz
+
+# Yarn Integrity file
+.yarn-integrity
+
+# dotenv environment variables file
+.env
+
+
+### OSX ###
+
+# Icon must end with two \r
+
+# Thumbnails
+
+# Files that might appear in the root of a volume
+
+# Directories potentially created on remote AFP share
+
+### Vim ###
+# swap
+[._]*.s[a-v][a-z]
+[._]*.sw[a-p]
+[._]s[a-v][a-z]
+[._]sw[a-p]
+# session
+Session.vim
+# temporary
+.netrwhist
+*~
+# auto-generated tag files
+tags
+
+### Windows ###
+# Windows thumbnail cache files
+Thumbs.db
+ehthumbs.db
+ehthumbs_vista.db
+
+# Folder config file
+Desktop.ini
+
+# Recycle Bin used on file shares
+$RECYCLE.BIN/
+
+# Windows Installer files
+*.cab
+*.msi
+*.msm
+*.msp
+
+# Windows shortcuts
+*.lnk
+
+# End of https://www.gitignore.io/api/osx,vim,node,macos,windows
diff --git a/lab-nathan/lib/fp.js b/lab-nathan/lib/fp.js
new file mode 100644
index 0000000..e69de29
diff --git a/lab-nathan/package.json b/lab-nathan/package.json
new file mode 100644
index 0000000..530d510
--- /dev/null
+++ b/lab-nathan/package.json
@@ -0,0 +1,17 @@
+{
+  "name": "lab-nathan",
+  "version": "1.0.0",
+  "description": "",
+  "main": "index.js",
+  "scripts": {
+    "lint": "eslint .",
+    "test": "mocha"
+  },
+  "keywords": [],
+  "author": "",
+  "license": "ISC",
+  "devDependencies": {
+    "chai": "^4.1.0",
+    "mocha": "^3.4.2"
+  }
+}
diff --git a/lab-nathan/test/fp-test.js b/lab-nathan/test/fp-test.js
new file mode 100644
index 0000000..e69de29

From 2b88df51ccabc136d913c01b4b3f391fc4eaeaa3 Mon Sep 17 00:00:00 2001
From: Nathan Harrenstein <nathan.harrenstein@gmail.com>
Date: Tue, 18 Jul 2017 12:30:38 -0700
Subject: [PATCH 02/14] Adds test for map function.

---
 lab-nathan/test/fp-test.js | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/lab-nathan/test/fp-test.js b/lab-nathan/test/fp-test.js
index e69de29..f48b2c9 100644
--- a/lab-nathan/test/fp-test.js
+++ b/lab-nathan/test/fp-test.js
@@ -0,0 +1,13 @@
+'use strict';
+
+const fp = require('../lib/fp.js');
+const expect = require('chai').expect;
+
+describe('fp', function() {
+  describe('#map()', function() {
+    it('should return an array of doubled values.', function() {
+      let result = fp.map([1, 2, 3], num => num * 2);
+      expect(result).to.equal([2, 4, 6]);
+    });
+  });
+});
\ No newline at end of file

From 2d6af9df9e653dd594cd6e2180196b9e477459ad Mon Sep 17 00:00:00 2001
From: Nathan Harrenstein <nathan.harrenstein@gmail.com>
Date: Tue, 18 Jul 2017 12:32:31 -0700
Subject: [PATCH 03/14] Adds test for filter function

---
 lab-nathan/test/fp-test.js | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/lab-nathan/test/fp-test.js b/lab-nathan/test/fp-test.js
index f48b2c9..3078821 100644
--- a/lab-nathan/test/fp-test.js
+++ b/lab-nathan/test/fp-test.js
@@ -10,4 +10,11 @@ describe('fp', function() {
       expect(result).to.equal([2, 4, 6]);
     });
   });
+
+  describe('#filter()', function() {
+    it('should return 2.', function() {
+      let result = fp.filter([1, 2, 3], 2);
+      expect(result).to.equal([1, 3]);
+    });
+  });
 });
\ No newline at end of file

From 7e796c4fd7f73aff34ed0ec3b4aeced24898ae57 Mon Sep 17 00:00:00 2001
From: Nathan Harrenstein <nathan.harrenstein@gmail.com>
Date: Tue, 18 Jul 2017 12:37:45 -0700
Subject: [PATCH 04/14] Adds test for concat function.

---
 lab-nathan/test/fp-test.js | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/lab-nathan/test/fp-test.js b/lab-nathan/test/fp-test.js
index 3078821..8f74418 100644
--- a/lab-nathan/test/fp-test.js
+++ b/lab-nathan/test/fp-test.js
@@ -17,4 +17,18 @@ describe('fp', function() {
       expect(result).to.equal([1, 3]);
     });
   });
+
+  describe('#reduce()', function() {
+    it('should return 6.', function() {
+      let result = fp.reduce([1, 2, 3], (acc, cur) => acc + cur, 0);
+      expect(result).to.equal(6);
+    });
+  });
+
+  describe('#concat()', function() {
+    it('should return [1, 2, 3, 4, 5, 6].', function() {
+      let result = fp.concat([1, 2, 3], [4, 5, 6]);
+      expect(result).to.equal([1, 2, 3, 4, 5, 6]);
+    });
+  });
 });
\ No newline at end of file

From fda0e1962aa292b9401dc161056458615c34b115 Mon Sep 17 00:00:00 2001
From: Nathan Harrenstein <nathan.harrenstein@gmail.com>
Date: Tue, 18 Jul 2017 12:45:33 -0700
Subject: [PATCH 05/14] Adds test for splice function.

---
 lab-nathan/test/fp-test.js | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/lab-nathan/test/fp-test.js b/lab-nathan/test/fp-test.js
index 8f74418..b18273d 100644
--- a/lab-nathan/test/fp-test.js
+++ b/lab-nathan/test/fp-test.js
@@ -31,4 +31,11 @@ describe('fp', function() {
       expect(result).to.equal([1, 2, 3, 4, 5, 6]);
     });
   });
+
+  describe('#splice()', function() {
+    it('should return [1, 2, 3, 7, 8, 9, 4, 5, 6].', function() {
+      let result = fp.splice([1, 2, 3, 4, 5, 6], 3, [7, 8, 9]);
+      expect(result).to.equal([1, 2, 3, 7, 8, 9, 4, 5, 6]);
+    });
+  });
 });
\ No newline at end of file

From eabe0d192c845e1352b02befe0234dfca4ad7f17 Mon Sep 17 00:00:00 2001
From: Nathan Harrenstein <nathan.harrenstein@gmail.com>
Date: Tue, 18 Jul 2017 12:55:14 -0700
Subject: [PATCH 06/14] Adds map function.

---
 lab-nathan/lib/fp.js       | 8 ++++++++
 lab-nathan/test/fp-test.js | 6 +++---
 2 files changed, 11 insertions(+), 3 deletions(-)

diff --git a/lab-nathan/lib/fp.js b/lab-nathan/lib/fp.js
index e69de29..917c33b 100644
--- a/lab-nathan/lib/fp.js
+++ b/lab-nathan/lib/fp.js
@@ -0,0 +1,8 @@
+'use strict';
+
+let fp = {};
+module.exports = fp;
+
+fp.map = (array, callback) => {
+  return Array.prototype.map.call(array, callback);
+};
\ No newline at end of file
diff --git a/lab-nathan/test/fp-test.js b/lab-nathan/test/fp-test.js
index b18273d..6ab5485 100644
--- a/lab-nathan/test/fp-test.js
+++ b/lab-nathan/test/fp-test.js
@@ -7,7 +7,7 @@ describe('fp', function() {
   describe('#map()', function() {
     it('should return an array of doubled values.', function() {
       let result = fp.map([1, 2, 3], num => num * 2);
-      expect(result).to.equal([2, 4, 6]);
+      expect(result).to.deep.equal([2, 4, 6]);
     });
   });
 
@@ -28,14 +28,14 @@ describe('fp', function() {
   describe('#concat()', function() {
     it('should return [1, 2, 3, 4, 5, 6].', function() {
       let result = fp.concat([1, 2, 3], [4, 5, 6]);
-      expect(result).to.equal([1, 2, 3, 4, 5, 6]);
+      expect(result).to.deep.equal([1, 2, 3, 4, 5, 6]);
     });
   });
 
   describe('#splice()', function() {
     it('should return [1, 2, 3, 7, 8, 9, 4, 5, 6].', function() {
       let result = fp.splice([1, 2, 3, 4, 5, 6], 3, [7, 8, 9]);
-      expect(result).to.equal([1, 2, 3, 7, 8, 9, 4, 5, 6]);
+      expect(result).to.deep.equal([1, 2, 3, 7, 8, 9, 4, 5, 6]);
     });
   });
 });
\ No newline at end of file

From f87ed27f87313b5bc8ee10822d5b18af861db6cd Mon Sep 17 00:00:00 2001
From: Nathan Harrenstein <nathan.harrenstein@gmail.com>
Date: Tue, 18 Jul 2017 12:58:33 -0700
Subject: [PATCH 07/14] Adds filter function.

---
 lab-nathan/lib/fp.js       | 5 ++---
 lab-nathan/test/fp-test.js | 4 ++--
 2 files changed, 4 insertions(+), 5 deletions(-)

diff --git a/lab-nathan/lib/fp.js b/lab-nathan/lib/fp.js
index 917c33b..58801b3 100644
--- a/lab-nathan/lib/fp.js
+++ b/lab-nathan/lib/fp.js
@@ -3,6 +3,5 @@
 let fp = {};
 module.exports = fp;
 
-fp.map = (array, callback) => {
-  return Array.prototype.map.call(array, callback);
-};
\ No newline at end of file
+fp.map = (array, callback) =>  Array.prototype.map.call(array, callback);
+fp.filter = (array, predicate) => Array.prototype.filter.call(array, predicate);
\ No newline at end of file
diff --git a/lab-nathan/test/fp-test.js b/lab-nathan/test/fp-test.js
index 6ab5485..37eb4ff 100644
--- a/lab-nathan/test/fp-test.js
+++ b/lab-nathan/test/fp-test.js
@@ -13,8 +13,8 @@ describe('fp', function() {
 
   describe('#filter()', function() {
     it('should return 2.', function() {
-      let result = fp.filter([1, 2, 3], 2);
-      expect(result).to.equal([1, 3]);
+      let result = fp.filter([1, 2, 3], num => num !== 2);
+      expect(result).to.deep.equal([1, 3]);
     });
   });
 

From 1682378fd34f603d6db1a72e807dc72b58f27035 Mon Sep 17 00:00:00 2001
From: Nathan Harrenstein <nathan.harrenstein@gmail.com>
Date: Tue, 18 Jul 2017 13:12:27 -0700
Subject: [PATCH 08/14] Adds reduce function.

---
 lab-nathan/lib/fp.js | 13 +++++++++++--
 1 file changed, 11 insertions(+), 2 deletions(-)

diff --git a/lab-nathan/lib/fp.js b/lab-nathan/lib/fp.js
index 58801b3..af299be 100644
--- a/lab-nathan/lib/fp.js
+++ b/lab-nathan/lib/fp.js
@@ -3,5 +3,14 @@
 let fp = {};
 module.exports = fp;
 
-fp.map = (array, callback) =>  Array.prototype.map.call(array, callback);
-fp.filter = (array, predicate) => Array.prototype.filter.call(array, predicate);
\ No newline at end of file
+fp.map = (array, func) => {
+  return Array.prototype.map.call(array, func);
+};
+
+fp.filter = (array, predicate) => {
+  return Array.prototype.filter.call(array, predicate);
+};
+
+fp.reduce = (array, func, initialValue) => {
+  return Array.prototype.reduce.call(array, func, initialValue);
+};
\ No newline at end of file

From 75da7c06ba898938d4500990e4a2d5c912cfce4b Mon Sep 17 00:00:00 2001
From: Nathan Harrenstein <nathan.harrenstein@gmail.com>
Date: Tue, 18 Jul 2017 13:15:52 -0700
Subject: [PATCH 09/14] Adds concat function.

---
 lab-nathan/lib/fp.js | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/lab-nathan/lib/fp.js b/lab-nathan/lib/fp.js
index af299be..c667bb0 100644
--- a/lab-nathan/lib/fp.js
+++ b/lab-nathan/lib/fp.js
@@ -13,4 +13,8 @@ fp.filter = (array, predicate) => {
 
 fp.reduce = (array, func, initialValue) => {
   return Array.prototype.reduce.call(array, func, initialValue);
+};
+
+fp.concat = (arrayA, arrayB) => {
+  return Array.prototype.concat.call(arrayA, arrayB);
 };
\ No newline at end of file

From 50d2cf936b2d8db46845b214242fd3a4f2f57f12 Mon Sep 17 00:00:00 2001
From: Nathan Harrenstein <nathan.harrenstein@gmail.com>
Date: Tue, 18 Jul 2017 13:49:56 -0700
Subject: [PATCH 10/14] Adds splice function.

---
 lab-nathan/lib/fp.js       | 5 +++++
 lab-nathan/test/fp-test.js | 2 +-
 2 files changed, 6 insertions(+), 1 deletion(-)

diff --git a/lab-nathan/lib/fp.js b/lab-nathan/lib/fp.js
index c667bb0..8a4cd1d 100644
--- a/lab-nathan/lib/fp.js
+++ b/lab-nathan/lib/fp.js
@@ -17,4 +17,9 @@ fp.reduce = (array, func, initialValue) => {
 
 fp.concat = (arrayA, arrayB) => {
   return Array.prototype.concat.call(arrayA, arrayB);
+};
+
+fp.splice = (array, start, deleteCount, items) => {
+  Array.prototype.splice.call(array, start, deleteCount, ...items);
+  return array;
 };
\ No newline at end of file
diff --git a/lab-nathan/test/fp-test.js b/lab-nathan/test/fp-test.js
index 37eb4ff..accc39a 100644
--- a/lab-nathan/test/fp-test.js
+++ b/lab-nathan/test/fp-test.js
@@ -34,7 +34,7 @@ describe('fp', function() {
 
   describe('#splice()', function() {
     it('should return [1, 2, 3, 7, 8, 9, 4, 5, 6].', function() {
-      let result = fp.splice([1, 2, 3, 4, 5, 6], 3, [7, 8, 9]);
+      let result = fp.splice([1, 2, 3, 4, 5, 6], 3, 0, [7, 8, 9]);
       expect(result).to.deep.equal([1, 2, 3, 7, 8, 9, 4, 5, 6]);
     });
   });

From fb01aaedb335a33c6ce3c71a841cbcd3d6117a50 Mon Sep 17 00:00:00 2001
From: Nathan Harrenstein <nathan.harrenstein@gmail.com>
Date: Tue, 18 Jul 2017 13:57:55 -0700
Subject: [PATCH 11/14] Use only lexical arrow functions.

---
 lab-nathan/test/fp-test.js | 22 +++++++++++-----------
 1 file changed, 11 insertions(+), 11 deletions(-)

diff --git a/lab-nathan/test/fp-test.js b/lab-nathan/test/fp-test.js
index accc39a..ca85ca5 100644
--- a/lab-nathan/test/fp-test.js
+++ b/lab-nathan/test/fp-test.js
@@ -3,37 +3,37 @@
 const fp = require('../lib/fp.js');
 const expect = require('chai').expect;
 
-describe('fp', function() {
-  describe('#map()', function() {
-    it('should return an array of doubled values.', function() {
+describe('fp', () => {
+  describe('#map()', () => {
+    it('should return an array of doubled values.', () => {
       let result = fp.map([1, 2, 3], num => num * 2);
       expect(result).to.deep.equal([2, 4, 6]);
     });
   });
 
-  describe('#filter()', function() {
-    it('should return 2.', function() {
+  describe('#filter()', () => {
+    it('should return 2.', () => {
       let result = fp.filter([1, 2, 3], num => num !== 2);
       expect(result).to.deep.equal([1, 3]);
     });
   });
 
-  describe('#reduce()', function() {
-    it('should return 6.', function() {
+  describe('#reduce()', () => {
+    it('should return 6.', () => {
       let result = fp.reduce([1, 2, 3], (acc, cur) => acc + cur, 0);
       expect(result).to.equal(6);
     });
   });
 
-  describe('#concat()', function() {
-    it('should return [1, 2, 3, 4, 5, 6].', function() {
+  describe('#concat()', () => {
+    it('should return [1, 2, 3, 4, 5, 6].', () => {
       let result = fp.concat([1, 2, 3], [4, 5, 6]);
       expect(result).to.deep.equal([1, 2, 3, 4, 5, 6]);
     });
   });
 
-  describe('#splice()', function() {
-    it('should return [1, 2, 3, 7, 8, 9, 4, 5, 6].', function() {
+  describe('#splice()', () => {
+    it('should return [1, 2, 3, 7, 8, 9, 4, 5, 6].', () => {
       let result = fp.splice([1, 2, 3, 4, 5, 6], 3, 0, [7, 8, 9]);
       expect(result).to.deep.equal([1, 2, 3, 7, 8, 9, 4, 5, 6]);
     });

From 877d6e70e450dce2bd85ae44c42851b1c204eba6 Mon Sep 17 00:00:00 2001
From: Nathan Harrenstein <nathan.harrenstein@gmail.com>
Date: Tue, 18 Jul 2017 14:55:11 -0700
Subject: [PATCH 12/14] Adds bonus.

---
 lab-nathan/index.js     | 5 +++++
 lab-nathan/package.json | 1 +
 2 files changed, 6 insertions(+)
 create mode 100644 lab-nathan/index.js

diff --git a/lab-nathan/index.js b/lab-nathan/index.js
new file mode 100644
index 0000000..5fced61
--- /dev/null
+++ b/lab-nathan/index.js
@@ -0,0 +1,5 @@
+'use strict';
+
+const fp = require('./lib/fp.js');
+
+fp.map(process.argv.slice(2), a => console.log(a.toUpperCase()));
\ No newline at end of file
diff --git a/lab-nathan/package.json b/lab-nathan/package.json
index 530d510..fd82602 100644
--- a/lab-nathan/package.json
+++ b/lab-nathan/package.json
@@ -4,6 +4,7 @@
   "description": "",
   "main": "index.js",
   "scripts": {
+    "start": "node index.js",
     "lint": "eslint .",
     "test": "mocha"
   },

From fb5c6e65b92b57a64a72ed4ea12b9aedae7df762 Mon Sep 17 00:00:00 2001
From: Nathan Harrenstein <nathan.harrenstein@gmail.com>
Date: Tue, 18 Jul 2017 14:58:44 -0700
Subject: [PATCH 13/14] Refactor.

---
 lab-nathan/lib/fp.js       | 20 ++++----------------
 lab-nathan/test/fp-test.js | 20 ++++++++++++++++++++
 2 files changed, 24 insertions(+), 16 deletions(-)

diff --git a/lab-nathan/lib/fp.js b/lab-nathan/lib/fp.js
index 8a4cd1d..09cbe80 100644
--- a/lab-nathan/lib/fp.js
+++ b/lab-nathan/lib/fp.js
@@ -3,22 +3,10 @@
 let fp = {};
 module.exports = fp;
 
-fp.map = (array, func) => {
-  return Array.prototype.map.call(array, func);
-};
-
-fp.filter = (array, predicate) => {
-  return Array.prototype.filter.call(array, predicate);
-};
-
-fp.reduce = (array, func, initialValue) => {
-  return Array.prototype.reduce.call(array, func, initialValue);
-};
-
-fp.concat = (arrayA, arrayB) => {
-  return Array.prototype.concat.call(arrayA, arrayB);
-};
-
+fp.map = (array, func) => Array.prototype.map.call(array, func);
+fp.filter = (array, predicate) => Array.prototype.filter.call(array, predicate);
+fp.reduce = (array, func, initialValue) => Array.prototype.reduce.call(array, func, initialValue);
+fp.concat = (arrayA, arrayB) => Array.prototype.concat.call(arrayA, arrayB);
 fp.splice = (array, start, deleteCount, items) => {
   Array.prototype.splice.call(array, start, deleteCount, ...items);
   return array;
diff --git a/lab-nathan/test/fp-test.js b/lab-nathan/test/fp-test.js
index ca85ca5..53f9e11 100644
--- a/lab-nathan/test/fp-test.js
+++ b/lab-nathan/test/fp-test.js
@@ -5,6 +5,10 @@ const expect = require('chai').expect;
 
 describe('fp', () => {
   describe('#map()', () => {
+    it('should fail with invalid inputs.', () => {
+      expect(fp.map).to.throw(Error);
+    });
+
     it('should return an array of doubled values.', () => {
       let result = fp.map([1, 2, 3], num => num * 2);
       expect(result).to.deep.equal([2, 4, 6]);
@@ -12,6 +16,10 @@ describe('fp', () => {
   });
 
   describe('#filter()', () => {
+    it('should fail with invalid inputs.', () => {
+      expect(fp.filter).to.throw(Error);
+    });
+
     it('should return 2.', () => {
       let result = fp.filter([1, 2, 3], num => num !== 2);
       expect(result).to.deep.equal([1, 3]);
@@ -19,6 +27,10 @@ describe('fp', () => {
   });
 
   describe('#reduce()', () => {
+    it('should fail with invalid inputs.', () => {
+      expect(fp.reduce).to.throw(Error);
+    });
+
     it('should return 6.', () => {
       let result = fp.reduce([1, 2, 3], (acc, cur) => acc + cur, 0);
       expect(result).to.equal(6);
@@ -26,6 +38,10 @@ describe('fp', () => {
   });
 
   describe('#concat()', () => {
+    it('should fail with invalid inputs.', () => {
+      expect(fp.concat).to.throw(Error);
+    });
+
     it('should return [1, 2, 3, 4, 5, 6].', () => {
       let result = fp.concat([1, 2, 3], [4, 5, 6]);
       expect(result).to.deep.equal([1, 2, 3, 4, 5, 6]);
@@ -33,6 +49,10 @@ describe('fp', () => {
   });
 
   describe('#splice()', () => {
+    it('should fail with invalid inputs.', () => {
+      expect(fp.splice).to.throw(Error);
+    });
+
     it('should return [1, 2, 3, 7, 8, 9, 4, 5, 6].', () => {
       let result = fp.splice([1, 2, 3, 4, 5, 6], 3, 0, [7, 8, 9]);
       expect(result).to.deep.equal([1, 2, 3, 7, 8, 9, 4, 5, 6]);

From 9db0c3c0053cdb889df8997c32d52c1b3f3dc686 Mon Sep 17 00:00:00 2001
From: Nathan Harrenstein <nathan.harrenstein@gmail.com>
Date: Tue, 18 Jul 2017 17:08:04 -0700
Subject: [PATCH 14/14] Add CLI test.

---
 lab-nathan/test/index-test.js | 23 +++++++++++++++++++++++
 1 file changed, 23 insertions(+)
 create mode 100644 lab-nathan/test/index-test.js

diff --git a/lab-nathan/test/index-test.js b/lab-nathan/test/index-test.js
new file mode 100644
index 0000000..5c97298
--- /dev/null
+++ b/lab-nathan/test/index-test.js
@@ -0,0 +1,23 @@
+'use strict';
+
+const expect = require('chai').expect;
+const { spawn } = require('child_process');
+
+describe('index', () => {
+  it('should produce uppercase params.', done => {
+    let child = spawn('node', ['index.js', 'hi', 'hello'], {
+      shell: true,
+    });
+
+    let buffer = [];
+    
+    child.stdout.on('data', chunk => {
+      buffer.push(chunk.toString().trim());
+    });
+
+    child.stdout.on('end', () => {
+      expect(buffer.join(' ')).to.equal('HI HELLO');
+      done();
+    });
+  });
+});
\ No newline at end of file