changed functions to arrowfunctions for only-arrow-functions rule (#13127)

public/app/plugins/datasource/graphite/specs/gfunc.test.ts

@@ -1,7 +1,7 @@
 import gfunc from '../gfunc';
 
-describe('when creating func instance from func names', function() {
-  it('should return func instance', function() {
+describe('when creating func instance from func names', () => {
+  it('should return func instance', () => {
     const func = gfunc.createFuncInstance('sumSeries');
     expect(func).toBeTruthy();
     expect(func.def.name).toEqual('sumSeries');
@@ -10,18 +10,18 @@ describe('when creating func instance from func names', function() {
     expect(func.def.defaultParams.length).toEqual(1);
   });
 
-  it('should return func instance with shortName', function() {
+  it('should return func instance with shortName', () => {
     const func = gfunc.createFuncInstance('sum');
     expect(func).toBeTruthy();
   });
 
-  it('should return func instance from funcDef', function() {
+  it('should return func instance from funcDef', () => {
     const func = gfunc.createFuncInstance('sum');
     const func2 = gfunc.createFuncInstance(func.def);
     expect(func2).toBeTruthy();
   });
 
-  it('func instance should have text representation', function() {
+  it('func instance should have text representation', () => {
     const func = gfunc.createFuncInstance('groupByNode');
     func.params[0] = 5;
     func.params[1] = 'avg';
@@ -30,78 +30,78 @@ describe('when creating func instance from func names', function() {
   });
 });
 
-describe('when rendering func instance', function() {
-  it('should handle single metric param', function() {
+describe('when rendering func instance', () => {
+  it('should handle single metric param', () => {
     const func = gfunc.createFuncInstance('sumSeries');
     expect(func.render('hello.metric')).toEqual('sumSeries(hello.metric)');
   });
 
-  it('should include default params if options enable it', function() {
+  it('should include default params if options enable it', () => {
     const func = gfunc.createFuncInstance('scaleToSeconds', {
       withDefaultParams: true,
     });
     expect(func.render('hello')).toEqual('scaleToSeconds(hello, 1)');
   });
 
-  it('should handle int or interval params with number', function() {
+  it('should handle int or interval params with number', () => {
     const func = gfunc.createFuncInstance('movingMedian');
     func.params[0] = '5';
     expect(func.render('hello')).toEqual('movingMedian(hello, 5)');
   });
 
-  it('should handle int or interval params with interval string', function() {
+  it('should handle int or interval params with interval string', () => {
     const func = gfunc.createFuncInstance('movingMedian');
     func.params[0] = '5min';
     expect(func.render('hello')).toEqual("movingMedian(hello, '5min')");
   });
 
-  it('should never quote boolean paramater', function() {
+  it('should never quote boolean paramater', () => {
     const func = gfunc.createFuncInstance('sortByName');
     func.params[0] = '$natural';
     expect(func.render('hello')).toEqual('sortByName(hello, $natural)');
   });
 
-  it('should never quote int paramater', function() {
+  it('should never quote int paramater', () => {
     const func = gfunc.createFuncInstance('maximumAbove');
     func.params[0] = '$value';
     expect(func.render('hello')).toEqual('maximumAbove(hello, $value)');
   });
 
-  it('should never quote node paramater', function() {
+  it('should never quote node paramater', () => {
     const func = gfunc.createFuncInstance('aliasByNode');
     func.params[0] = '$node';
     expect(func.render('hello')).toEqual('aliasByNode(hello, $node)');
   });
 
-  it('should handle metric param and int param and string param', function() {
+  it('should handle metric param and int param and string param', () => {
     const func = gfunc.createFuncInstance('groupByNode');
     func.params[0] = 5;
     func.params[1] = 'avg';
     expect(func.render('hello.metric')).toEqual("groupByNode(hello.metric, 5, 'avg')");
   });
 
-  it('should handle function with no metric param', function() {
+  it('should handle function with no metric param', () => {
     const func = gfunc.createFuncInstance('randomWalk');
     func.params[0] = 'test';
     expect(func.render(undefined)).toEqual("randomWalk('test')");
   });
 
-  it('should handle function multiple series params', function() {
+  it('should handle function multiple series params', () => {
     const func = gfunc.createFuncInstance('asPercent');
     func.params[0] = '#B';
     expect(func.render('#A')).toEqual('asPercent(#A, #B)');
   });
 });
 
-describe('when requesting function definitions', function() {
-  it('should return function definitions', function() {
+describe('when requesting function definitions', () => {
+  it('should return function definitions', () => {
     const funcIndex = gfunc.getFuncDefs('1.0');
     expect(Object.keys(funcIndex).length).toBeGreaterThan(8);
   });
 });
 
-describe('when updating func param', function() {
-  it('should update param value and update text representation', function() {
+describe('when updating func param', () => {
+  it('should update param value and update text representation', () => {
     const func = gfunc.createFuncInstance('summarize', {
       withDefaultParams: true,
     });
@@ -110,21 +110,21 @@ describe('when updating func param', function() {
     expect(func.text).toBe('summarize(1h, sum, false)');
   });
 
-  it('should parse numbers as float', function() {
+  it('should parse numbers as float', () => {
     const func = gfunc.createFuncInstance('scale');
     func.updateParam('0.001', 0);
     expect(func.params[0]).toBe('0.001');
   });
 });
 
-describe('when updating func param with optional second parameter', function() {
-  it('should update value and text', function() {
+describe('when updating func param with optional second parameter', () => {
+  it('should update value and text', () => {
     const func = gfunc.createFuncInstance('aliasByNode');
     func.updateParam('1', 0);
     expect(func.params[0]).toBe('1');
   });
 
-  it('should slit text and put value in second param', function() {
+  it('should slit text and put value in second param', () => {
     const func = gfunc.createFuncInstance('aliasByNode');
     func.updateParam('4,-5', 0);
     expect(func.params[0]).toBe('4');
@@ -132,7 +132,7 @@ describe('when updating func param with optional second parameter', function() {
     expect(func.text).toBe('aliasByNode(4, -5)');
   });
 
-  it('should remove second param when empty string is set', function() {
+  it('should remove second param when empty string is set', () => {
     const func = gfunc.createFuncInstance('aliasByNode');
     func.updateParam('4,-5', 0);
     func.updateParam('', 1);