Have past, future and recent return random dates

Functions `past` and `future` only returned dates EXACTLY N YEARS before
or after the reference date. Function `recent` only returned dates
EXACTLY N DAYS before the reference date.

For example, `faker.date.past(1)` would return either *Nov 12, 2014*, or
*Nov 12, 2013*, but nothing in-between.

Also, now you can call those functions without parameter, and N will
take the default value of `1`.

1 files changed, 17 insertions, 3 deletions

diff --git a/lib/date.js b/lib/date.js
index 01d505eb..afe9fdc9 100644
--- a/lib/date.js
+++ b/lib/date.js
@@ -4,9 +4,13 @@ var date = {
 
     past: function (years, refDate) {
         var date = (refDate) ? new Date(Date.parse(refDate)) : new Date();
+        var range = {
+          min: 1000,
+          max: (years || 1) * 365 * 24 * 3600 * 1000
+        };
 
         var past = date.getTime();
-        past -= faker.random.number(years) * 365 * 24 * 3600 * 1000; // some time from now to N years ago, in milliseconds
+        past -= faker.random.number(range); // some time from now to N years ago, in milliseconds
         date.setTime(past);
 
         return date;
@@ -14,8 +18,13 @@ var date = {
 
     future: function (years, refDate) {
         var date = (refDate) ? new Date(Date.parse(refDate)) : new Date();
+        var range = {
+          min: 1000,
+          max: (years || 1) * 365 * 24 * 3600 * 1000
+        };
+
         var future = date.getTime();
-        future += faker.random.number(years) * 365 * 3600 * 1000 + 1000; // some time from now to N years later, in milliseconds
+        future += faker.random.number(range); // some time from now to N years later, in milliseconds
         date.setTime(future);
 
         return date;
@@ -32,8 +41,13 @@ var date = {
 
     recent: function (days) {
         var date = new Date();
+        var range = {
+          min: 1000,
+          max: (days || 1) * 24 * 3600 * 1000
+        };
+
         var future = date.getTime();
-        future -= faker.random.number(days) * 24 * 60 * 60 * 1000; // some time from now to N days ago, in milliseconds
+        future -= faker.random.number(range); // some time from now to N days ago, in milliseconds
         date.setTime(future);
 
         return date;