fix(single_stat): rounding bug in value => text

public/app/plugins/panel/singlestat/editor.html

@@ -167,13 +167,13 @@
 					<i class="fa fa-remove pointer" ng-click="ctrl.removeValueMap(map)"></i>
 				</li>
 				<li>
-					<input type="text" ng-model="ctrl.map.value" placeholder="value" class="input-mini tight-form-input" ng-blur="ctrl.render()">
+					<input type="text" ng-model="map.value" placeholder="value" class="input-mini tight-form-input" ng-blur="ctrl.render()">
 				</li>
 				<li class="tight-form-item">
 					<i class="fa fa-arrow-right"></i>
 				</li>
 				<li ng-repeat-end>
-					<input type="text" placeholder="text" ng-model="ctrl.map.text" class="input-mini tight-form-input" ng-blur="ctrl.render()">
+					<input type="text" placeholder="text" ng-model="map.text" class="input-mini tight-form-input" ng-blur="ctrl.render()">
 				</li>
 
 				<li>

public/app/plugins/panel/singlestat/module.ts

@@ -213,7 +213,7 @@ class SingleStatCtrl extends MetricsPanelCtrl {
 
       // value/number to text mapping
       var value = parseFloat(map.value);
-      if (value === data.value) {
+      if (value === data.valueRounded) {
         data.valueFormated = map.text;
         return;
       }

public/app/plugins/panel/singlestat/specs/singlestat-specs.ts

@@ -69,14 +69,20 @@ describe('SingleStatCtrl', function() {
 
   singleStatScenario('When value to text mapping is specified', function(ctx) {
     ctx.setup(function() {
-      ctx.datapoints = [[10,1]];
+      ctx.datapoints = [[9.9,1]];
       ctx.ctrl.panel.valueMaps = [{value: '10', text: 'OK'}];
     });
 
+    it('value should remain', function() {
+      expect(ctx.data.value).to.be(9.9);
+    });
+
+    it('round should be rounded up', function() {
+      expect(ctx.data.valueRounded).to.be(10);
+    });
+
     it('Should replace value with text', function() {
-      expect(ctx.data.value).to.be(10);
       expect(ctx.data.valueFormated).to.be('OK');
     });
-
   });
 });