add mock to test bullet spanning negative values

Author: antoinerg

src/traces/indicator/plot.js

@@ -826,14 +826,12 @@ function strTranslate(x, y) {
 
 function fitTextInsideBox(textBB, width, height) {
     // compute scaling ratio to have text fit within specified width and height
-    // var textBB = Drawing.bBox(el.node());
     var ratio = Math.min(width / textBB.width, height / textBB.height);
     return [ratio, textBB, width + 'x' + height];
 }
 
 function fitTextInsideCircle(textBB, radius) {
     // compute scaling ratio to have text fit within specified radius
-    // var textBB = Drawing.bBox(el.node());
     var elRadius = Math.sqrt((textBB.width / 2) * (textBB.width / 2) + textBB.height * textBB.height);
     var ratio = radius / elRadius;
     return [ratio, textBB, radius];

test/image/baselines/indicator_grid_template.png

@@ -3,12 +3,12 @@
       "type": "indicator",
       "value": 120,
       "delta": {"reference": 60},
-      "gauge": {"axis": {"visible": false}},
+      "gauge": {"axis": {"visible": false, "range": [0, 200]}},
       "domain": {"row": 0, "column": 0}
   }, {
       "type": "indicator",
       "value": 120,
-      "gauge": {"shape": "bullet", "axis": {"visible": false}},
+      "gauge": {"shape": "bullet", "axis": {"visible": false, "range": [-200, 200]}},
       "domain": {"x": [0.05, 0.5], "y": [0.15, 0.35]}
   }, {
       "type": "indicator",