diff --git a/.gitignore b/.gitignore
index b886261..7ab347e 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,6 +1,6 @@
 public
 data/raw/real
-data/json/real
+data/json
 # Logs
 logs
 *.log
diff --git a/data/raw/test/date.raw b/data/raw/test/date.raw
new file mode 100644
index 0000000..50f67ef
--- /dev/null
+++ b/data/raw/test/date.raw
@@ -0,0 +1 @@
+Mon Jan 01 01:01:01 CDT 2019
diff --git a/data/raw/test/diskspace.raw b/data/raw/test/diskspace.raw
new file mode 100644
index 0000000..fe66081
--- /dev/null
+++ b/data/raw/test/diskspace.raw
@@ -0,0 +1 @@
+/dev/disk1    1000G    100G   900G    10% 0000001 9999999999999999999    0%   /
diff --git a/mkData.js b/mkData.js
index 004a2b3..96dc0d6 100644
--- a/mkData.js
+++ b/mkData.js
@@ -1,5 +1,7 @@
 let dataFromDate = require('./mkDataFromDate.js');
 let dataFromDiskspace = require('./mkDataFromDiskspace.js');
 
-dataFromDate();
-dataFromDiskspace();
+let isTestMode = process.argv[2] === '--test';
+
+dataFromDate(isTestMode);
+dataFromDiskspace(isTestMode);
diff --git a/mkDataFromDate.js b/mkDataFromDate.js
index 3aba07d..51aa43a 100644
--- a/mkDataFromDate.js
+++ b/mkDataFromDate.js
@@ -1,8 +1,8 @@
 const fs = require('fs');
 const path = require('path');
 
-module.exports = async function() {
-  fs.readFile(path.join(__dirname, 'data/raw/real', 'date.raw'), 'utf8', (err, date) => {
+module.exports = async function(useTestData = false) {
+  fs.readFile(path.join(__dirname, 'data/raw', useTestData ? 'test' : 'real', 'date.raw'), 'utf8', (err, date) => {
     if (err || !date.length) {
       console.error(err);
       process.exit(1);
diff --git a/mkDataFromDiskspace.js b/mkDataFromDiskspace.js
index b24c75e..a43abd4 100644
--- a/mkDataFromDiskspace.js
+++ b/mkDataFromDiskspace.js
@@ -1,8 +1,8 @@
 const fs = require('fs');
 const path = require('path');
 
-module.exports = async function() {
-  fs.readFile(path.join(__dirname, 'data/raw/real', 'diskspace.raw'), 'utf8', (err, diskspace) => {
+module.exports = async function(useTestData = false) {
+  fs.readFile(path.join(__dirname, 'data/raw', useTestData ? 'test' : 'real', 'diskspace.raw'), 'utf8', (err, diskspace) => {
     if (err || !diskspace.length) {
       console.error(err);
       process.exit(1);
diff --git a/mkRaw.sh b/mkRaw.sh
index 9d5a0bf..7ad1223 100644
--- a/mkRaw.sh
+++ b/mkRaw.sh
@@ -1,5 +1,5 @@
 mkdir -p data/raw/real
-mkdir -p data/json/real
+mkdir -p data/json
 
 touch data/raw/real/date.raw
 date > data/raw/real/date.raw
diff --git a/package.json b/package.json
index 9b35c02..0aeff67 100644
--- a/package.json
+++ b/package.json
@@ -8,6 +8,7 @@
     "copy:assets": "bash ./copyAssets.sh",
     "mk:raw": "bash ./mkRaw.sh",
     "mk:data": "node mkData.js",
+    "mk:data:test": "node mkData.js --test",
     "test": "echo \"Error: no test specified\" && exit 1"
   },
   "repository": {