Added query ctrl tests for Opentsdb

public/app/plugins/datasource/opentsdb/specs/query-ctrl-specs.ts

+import {describe, beforeEach, it, sinon, expect, angularMocks} from 'test/lib/common';
+import helpers from 'test/specs/helpers';
+import {OpenTsQueryCtrl} from "../query_ctrl";
+
+describe('OpenTsQueryCtrl', function() {
+  var ctx = new helpers.ControllerTestContext();
+
+  beforeEach(angularMocks.module('grafana.core'));
+  beforeEach(angularMocks.module('grafana.services'));
+  beforeEach(ctx.providePhase(['backendSrv','templateSrv']));
+
+  beforeEach(ctx.providePhase());
+  beforeEach(angularMocks.inject(($rootScope, $controller, $q) => {
+    ctx.$q = $q;
+    ctx.scope = $rootScope.$new();
+    ctx.target = {target: ''};
+    ctx.panelCtrl = {panel: {}};
+    ctx.panelCtrl.refresh = sinon.spy();
+    ctx.datasource.getAggregators = sinon.stub().returns(ctx.$q.when([]));
+
+    ctx.ctrl = $controller(OpenTsQueryCtrl, {$scope: ctx.scope}, {
+      panelCtrl: ctx.panelCtrl,
+      datasource: ctx.datasource,
+      target: ctx.target,
+    });
+    ctx.scope.$digest();
+  }));
+
+  describe('init query_ctrl variables', function() {
+
+    it('filter types should be initialized', function() {
+      expect(ctx.ctrl.filterTypes.length).to.be(7);
+    });
+
+    it('aggregators should be initialized', function() {
+      expect(ctx.ctrl.aggregators.length).to.be(8);
+    });
+
+    it('fill policy options should be initialized', function() {
+      expect(ctx.ctrl.fillPolicies.length).to.be(4);
+    });
+
+  });
+
+  describe('when adding filters and tags', function() {
+
+    it('addTagMode should be false when closed', function() {
+      ctx.ctrl.addTagMode = true;
+      ctx.ctrl.closeAddTagMode();
+      expect(ctx.ctrl.addTagMode).to.be(false);
+    });
+
+    it('addFilterMode should be false when closed', function() {
+      ctx.ctrl.addFilterMode = true;
+      ctx.ctrl.closeAddFilterMode();
+      expect(ctx.ctrl.addFilterMode).to.be(false);
+    });
+
+    it('removing a tag from the tags list', function() {
+      ctx.ctrl.target.tags = {"tagk": "tag_key", "tagk2": "tag_value2"};
+      ctx.ctrl.removeTag("tagk");
+      expect(Object.keys(ctx.ctrl.target.tags).length).to.be(1);
+    });
+
+    it('removing a filter from the filters list', function() {
+      ctx.ctrl.target.filters = [{"tagk": "tag_key", "filter": "tag_value2", "type": "wildcard", "groupBy": true}];
+      ctx.ctrl.removeFilter(0);
+      expect(ctx.ctrl.target.filters.length).to.be(0);
+    });
+
+    it('adding a filter when tags exist should generate error', function() {
+      ctx.ctrl.target.tags = {"tagk": "tag_key", "tagk2": "tag_value2"};
+      ctx.ctrl.addFilter();
+      expect(ctx.ctrl.errors.filters).to.be('Please remove tags to use filters, tags and filters are mutually exclusive.');
+    });
+
+    it('adding a tag when filters exist should generate error', function() {
+      ctx.ctrl.target.filters = [{"tagk": "tag_key", "filter": "tag_value2", "type": "wildcard", "groupBy": true}];
+      ctx.ctrl.addTag();
+      expect(ctx.ctrl.errors.tags).to.be('Please remove filters to use tags, tags and filters are mutually exclusive.');
+    });
+
+  });
+
+});