Docs + tests optimization

Author: gwyneblaidd

docs/charts/bar.md

@@ -213,6 +213,11 @@ You can also specify the dataset as x/y coordinates when using the [time scale](
 data: [{x:'2016-12-25', y:20}, {x:'2016-12-26', y:10}]
 ```
 
+You can also specify the dataset for a bar chart as arrays of two numbers. This will force rendering of bars with gaps between them (floating-bars). First and second numbers in array will correspond the start and the end point of a bar respectively.
+```javascript
+data: [[5,6], [-3,-6]]
+```
+
 ## Stacked Bar Chart
 
 Bar charts can be configured into stacked bar charts by changing the settings on the X and Y axes to enable stacking. Stacked bar charts can be used to show how one data series is made up of a number of smaller pieces.

test/fixtures/controller.bar/floatBar/float-bar-horizontal.json

@@ -19,16 +19,14 @@
             "legend": false,
             "scales": {
                 "xAxes": [{
+                    "display": false,
                     "ticks": {
-                        "source": "labels",
-                        "display": false
+                        "min": -8,
+                        "max": 12
                     }
                 }],
                 "yAxes": [{
-                    "ticks": {
-                        "display": false,
-                        "beginAtZero": true
-                    }
+                    "display": false
                 }]
             }
         }

test/fixtures/controller.bar/floatBar/float-bar-horizontal.png

@@ -19,17 +19,15 @@
             "legend": false,
             "scales": {
                 "xAxes": [{
-                    "stacked": true,
-                    "ticks": {
-                        "source": "labels",
-                        "display": false
-                    }
+                    "display": false,
+                    "stacked": true
                 }],
                 "yAxes": [{
+                    "display": false,
                     "stacked": true,
                     "ticks": {
-                        "display": false,
-                        "beginAtZero": true
+                        "min": -8,
+                        "max": 12
                     }
                 }]
             }

test/fixtures/controller.bar/floatBar/float-bar-stacked-horizontal.json

@@ -19,16 +19,16 @@
             "legend": false,
             "scales": {
                 "xAxes": [{
+                    "display": false,
                     "stacked": true,
                     "ticks": {
-                        "display": false
+                        "min": -8,
+                        "max": 12
                     }
                 }],
                 "yAxes": [{
-                    "stacked": true,
-                    "ticks": {
-                        "display": false
-                    }
+                    "display": false,
+                    "stacked": true
                 }]
             }
         }

test/fixtures/controller.bar/floatBar/float-bar-stacked-horizontal.png

@@ -19,16 +19,14 @@
             "legend": false,
             "scales": {
                 "xAxes": [{
+                    "display": false,
                     "ticks": {
-                        "source": "labels",
-                        "display": false
+                        "min": -8,
+                        "max": 12
                     }
                 }],
                 "yAxes": [{
-                    "ticks": {
-                        "display": false,
-                        "beginAtZero": true
-                    }
+                    "display": false
                 }]
             }
         }