Add jest file

public/app/plugins/datasource/influxdb/specs/query_ctrl.jest.ts

+import '../query_ctrl';
+import 'app/core/services/segment_srv';
+// import { describe, beforeEach, it, sinon, expect, angularMocks } from 'test/lib/common';
+// import helpers from 'test/specs/helpers';
+import { InfluxQueryCtrl } from '../query_ctrl';
+
+describe('InfluxDBQueryCtrl', function() {
+  let uiSegmentSrv = {
+    newPlusButton: () => {},
+  };
+
+  let ctx = <any>{
+    dataSource: {
+      metricFindQuery: jest.fn(() => Promise.resolve([])),
+    },
+  };
+
+  InfluxQueryCtrl.prototype.panelCtrl = {
+    panel: {
+      targets: [{}],
+    },
+  };
+
+  //   beforeEach(angularMocks.module('grafana.core'));
+  //   beforeEach(angularMocks.module('grafana.controllers'));
+  //   beforeEach(angularMocks.module('grafana.services'));
+  //   beforeEach(
+  //     angularMocks.module(function($compileProvider) {
+  //       $compileProvider.preAssignBindingsEnabled(true);
+  //     })
+  //   );
+  //   beforeEach(ctx.providePhase());
+
+  //   beforeEach(
+  //     angularMocks.inject(($rootScope, $controller, $q) => {
+  //       ctx.$q = $q;
+  //       ctx.scope = $rootScope.$new();
+  //       ctx.datasource.metricFindQuery = sinon.stub().returns(ctx.$q.when([]));
+  //       ctx.target = { target: {} };
+  //       ctx.panelCtrl = {
+  //         panel: {
+  //           targets: [ctx.target],
+  //         },
+  //       };
+  //       ctx.panelCtrl.refresh = sinon.spy();
+  //       ctx.ctrl = $controller(
+  //         InfluxQueryCtrl,
+  //         { $scope: ctx.scope },
+  //         {
+  //           panelCtrl: ctx.panelCtrl,
+  //           target: ctx.target,
+  //           datasource: ctx.datasource,
+  //         }
+  //       );
+  //     })
+  //   );
+
+  beforeEach(() => {
+    ctx.ctrl = new InfluxQueryCtrl({}, {}, {}, {}, uiSegmentSrv);
+  });
+
+  describe('init', function() {
+    it('should init tagSegments', function() {
+      expect(ctx.ctrl.tagSegments.length).toBe(1);
+    });
+
+    it('should init measurementSegment', function() {
+      expect(ctx.ctrl.measurementSegment.value).toBe('select measurement');
+    });
+  });
+
+  describe('when first tag segment is updated', function() {
+    beforeEach(function() {
+      ctx.ctrl.tagSegmentUpdated({ value: 'asd', type: 'plus-button' }, 0);
+    });
+
+    it('should update tag key', function() {
+      expect(ctx.ctrl.target.tags[0].key).toBe('asd');
+      expect(ctx.ctrl.tagSegments[0].type).toBe('key');
+    });
+
+    it('should add tagSegments', function() {
+      expect(ctx.ctrl.tagSegments.length).toBe(3);
+    });
+  });
+
+  describe('when last tag value segment is updated', function() {
+    beforeEach(function() {
+      ctx.ctrl.tagSegmentUpdated({ value: 'asd', type: 'plus-button' }, 0);
+      ctx.ctrl.tagSegmentUpdated({ value: 'server1', type: 'value' }, 2);
+    });
+
+    it('should update tag value', function() {
+      expect(ctx.ctrl.target.tags[0].value).toBe('server1');
+    });
+
+    it('should set tag operator', function() {
+      expect(ctx.ctrl.target.tags[0].operator).toBe('=');
+    });
+
+    it('should add plus button for another filter', function() {
+      expect(ctx.ctrl.tagSegments[3].fake).toBe(true);
+    });
+  });
+
+  describe('when last tag value segment is updated to regex', function() {
+    beforeEach(function() {
+      ctx.ctrl.tagSegmentUpdated({ value: 'asd', type: 'plus-button' }, 0);
+      ctx.ctrl.tagSegmentUpdated({ value: '/server.*/', type: 'value' }, 2);
+    });
+
+    it('should update operator', function() {
+      expect(ctx.ctrl.tagSegments[1].value).toBe('=~');
+      expect(ctx.ctrl.target.tags[0].operator).toBe('=~');
+    });
+  });
+
+  describe('when second tag key is added', function() {
+    beforeEach(function() {
+      ctx.ctrl.tagSegmentUpdated({ value: 'asd', type: 'plus-button' }, 0);
+      ctx.ctrl.tagSegmentUpdated({ value: 'server1', type: 'value' }, 2);
+      ctx.ctrl.tagSegmentUpdated({ value: 'key2', type: 'plus-button' }, 3);
+    });
+
+    it('should update tag key', function() {
+      expect(ctx.ctrl.target.tags[1].key).toBe('key2');
+    });
+
+    it('should add AND segment', function() {
+      expect(ctx.ctrl.tagSegments[3].value).toBe('AND');
+    });
+  });
+
+  describe('when condition is changed', function() {
+    beforeEach(function() {
+      ctx.ctrl.tagSegmentUpdated({ value: 'asd', type: 'plus-button' }, 0);
+      ctx.ctrl.tagSegmentUpdated({ value: 'server1', type: 'value' }, 2);
+      ctx.ctrl.tagSegmentUpdated({ value: 'key2', type: 'plus-button' }, 3);
+      ctx.ctrl.tagSegmentUpdated({ value: 'OR', type: 'condition' }, 3);
+    });
+
+    it('should update tag condition', function() {
+      expect(ctx.ctrl.target.tags[1].condition).toBe('OR');
+    });
+
+    it('should update AND segment', function() {
+      expect(ctx.ctrl.tagSegments[3].value).toBe('OR');
+      expect(ctx.ctrl.tagSegments.length).toBe(7);
+    });
+  });
+
+  describe('when deleting first tag filter after value is selected', function() {
+    beforeEach(function() {
+      ctx.ctrl.tagSegmentUpdated({ value: 'asd', type: 'plus-button' }, 0);
+      ctx.ctrl.tagSegmentUpdated({ value: 'server1', type: 'value' }, 2);
+      ctx.ctrl.tagSegmentUpdated(ctx.ctrl.removeTagFilterSegment, 0);
+    });
+
+    it('should remove tags', function() {
+      expect(ctx.ctrl.target.tags.length).toBe(0);
+    });
+
+    it('should remove all segment after 2 and replace with plus button', function() {
+      expect(ctx.ctrl.tagSegments.length).toBe(1);
+      expect(ctx.ctrl.tagSegments[0].type).toBe('plus-button');
+    });
+  });
+
+  describe('when deleting second tag value before second tag value is complete', function() {
+    beforeEach(function() {
+      ctx.ctrl.tagSegmentUpdated({ value: 'asd', type: 'plus-button' }, 0);
+      ctx.ctrl.tagSegmentUpdated({ value: 'server1', type: 'value' }, 2);
+      ctx.ctrl.tagSegmentUpdated({ value: 'key2', type: 'plus-button' }, 3);
+      ctx.ctrl.tagSegmentUpdated(ctx.ctrl.removeTagFilterSegment, 4);
+    });
+
+    it('should remove all segment after 2 and replace with plus button', function() {
+      expect(ctx.ctrl.tagSegments.length).toBe(4);
+      expect(ctx.ctrl.tagSegments[3].type).toBe('plus-button');
+    });
+  });
+
+  describe('when deleting second tag value before second tag value is complete', function() {
+    beforeEach(function() {
+      ctx.ctrl.tagSegmentUpdated({ value: 'asd', type: 'plus-button' }, 0);
+      ctx.ctrl.tagSegmentUpdated({ value: 'server1', type: 'value' }, 2);
+      ctx.ctrl.tagSegmentUpdated({ value: 'key2', type: 'plus-button' }, 3);
+      ctx.ctrl.tagSegmentUpdated(ctx.ctrl.removeTagFilterSegment, 4);
+    });
+
+    it('should remove all segment after 2 and replace with plus button', function() {
+      expect(ctx.ctrl.tagSegments.length).toBe(4);
+      expect(ctx.ctrl.tagSegments[3].type).toBe('plus-button');
+    });
+  });
+
+  describe('when deleting second tag value after second tag filter is complete', function() {
+    beforeEach(function() {
+      ctx.ctrl.tagSegmentUpdated({ value: 'asd', type: 'plus-button' }, 0);
+      ctx.ctrl.tagSegmentUpdated({ value: 'server1', type: 'value' }, 2);
+      ctx.ctrl.tagSegmentUpdated({ value: 'key2', type: 'plus-button' }, 3);
+      ctx.ctrl.tagSegmentUpdated({ value: 'value', type: 'value' }, 6);
+      ctx.ctrl.tagSegmentUpdated(ctx.ctrl.removeTagFilterSegment, 4);
+    });
+
+    it('should remove all segment after 2 and replace with plus button', function() {
+      expect(ctx.ctrl.tagSegments.length).toBe(4);
+      expect(ctx.ctrl.tagSegments[3].type).toBe('plus-button');
+    });
+  });
+});