singlestat: value mapping for table data

Adds support for value mapping for table data in the single stat panel.

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

@@ -178,6 +178,8 @@ class SingleStatCtrl extends MetricsPanelCtrl {
     var formatFunc = kbn.valueFormats[this.panel.format];
     data.valueFormatted = formatFunc(datapoint[this.panel.tableColumn], decimalInfo.decimals, decimalInfo.scaledDecimals);
     data.valueRounded = kbn.roundValue(data.value, this.panel.decimals || 0);
+
+    this.setValueMapping(data);
   }
 
   setColoring(options) {
@@ -274,7 +276,10 @@ class SingleStatCtrl extends MetricsPanelCtrl {
       data.scopedVars = _.extend({}, this.panel.scopedVars);
       data.scopedVars["__name"] = {value: this.series[0].label};
     }
+    this.setValueMapping(data);
+  }
 
+  setValueMapping(data) {
     // check value to text mappings if its enabled
     if (this.panel.mappingType === 1) {
       for (let i = 0; i < this.panel.valueMaps.length; i++) {

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

@@ -136,40 +136,27 @@ describe('SingleStatCtrl', function() {
     });
   });
 
+  describe('When table data', function() {
     const tableData = [{
       "columns": [
-      {
-        "text": "Time",
-        "type": "time"
-      },
-      {
-        "text": "test1"
-      },
-      {
-        "text": "mean"
-      },
-      {
-        "text": "test2"
-      }
+        { "text": "Time", "type": "time" },
+        { "text": "test1" },
+        { "text": "mean" },
+        { "text": "test2" }
       ],
       "rows": [
-      [
-        1492759673649,
-        'ignore1',
-        15,
-        'ignore2'
-      ]
+        [1492759673649, 'ignore1', 15, 'ignore2']
       ],
       "type": "table"
     }];
 
-  singleStatScenario('When table data', function(ctx) {
+    singleStatScenario('with default values', function(ctx) {
       ctx.setup(function() {
         ctx.data = tableData;
         ctx.ctrl.panel.tableColumn = 'mean';
       });
 
-    it('Should use series avg as default main value', function() {
+      it('Should use first rows value as default main value', function() {
         expect(ctx.data.value).to.be(15);
         expect(ctx.data.valueRounded).to.be(15);
       });
@@ -190,6 +177,72 @@ describe('SingleStatCtrl', function() {
       });
     });
 
+    singleStatScenario('MainValue should use same number for decimals as displayed when checking thresholds', function(ctx) {
+      ctx.setup(function() {
+        ctx.data = tableData;
+        ctx.data[0].rows[0] = [1492759673649,'ignore1', 99.99999, 'ignore2'];
+        ctx.ctrl.panel.tableColumn = 'mean';
+      });
+
+      it('Should be rounded', function() {
+        expect(ctx.data.value).to.be(99.99999);
+        expect(ctx.data.valueRounded).to.be(100);
+      });
+
+      it('should set formatted falue', function() {
+        expect(ctx.data.valueFormatted).to.be('100');
+      });
+    });
+
+    singleStatScenario('When value to text mapping is specified', function(ctx) {
+      ctx.setup(function() {
+        ctx.data = tableData;
+        ctx.data[0].rows[0] = [1492759673649,'ignore1', 9.9, 'ignore2'];
+        ctx.ctrl.panel.tableColumn = 'mean';
+        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.valueFormatted).to.be('OK');
+      });
+    });
+
+    singleStatScenario('When range to text mapping is specified for first range', function(ctx) {
+      ctx.setup(function() {
+        ctx.data = tableData;
+        ctx.data[0].rows[0] = [1492759673649,'ignore1', 41, 'ignore2'];
+        ctx.ctrl.panel.tableColumn = 'mean';
+        ctx.ctrl.panel.mappingType = 2;
+        ctx.ctrl.panel.rangeMaps = [{from: '10', to: '50', text: 'OK'},{from: '51', to: '100', text: 'NOT OK'}];
+      });
+
+      it('Should replace value with text OK', function() {
+        expect(ctx.data.valueFormatted).to.be('OK');
+      });
+    });
+
+    singleStatScenario('When range to text mapping is specified for other ranges', function(ctx) {
+      ctx.setup(function() {
+        ctx.data = tableData;
+        ctx.data[0].rows[0] = [1492759673649,'ignore1', 65, 'ignore2'];
+        ctx.ctrl.panel.tableColumn = 'mean';
+        ctx.ctrl.panel.mappingType = 2;
+        ctx.ctrl.panel.rangeMaps = [{from: '10', to: '50', text: 'OK'},{from: '51', to: '100', text: 'NOT OK'}];
+      });
+
+      it('Should replace value with text NOT OK', function() {
+        expect(ctx.data.valueFormatted).to.be('NOT OK');
+      });
+    });
+  });
 });