4 files changed, 8 insertions, 7 deletions
diff --git a/js/tests/unit/collapse.spec.js b/js/tests/unit/collapse.spec.js
index da709bb85..082e6505f 100644
--- a/js/tests/unit/collapse.spec.js
+++ b/js/tests/unit/collapse.spec.js
@@ -734,7 +734,7 @@ describe('Collapse', () => {
         two: false
       }
 
-      function firstTest() {
+      const firstTest = () => {
         expect(collapseOneOne.classList.contains('show')).toEqual(true)
         expect(collapseOneTwo.classList.contains('show')).toEqual(true)
 
@@ -744,7 +744,7 @@ describe('Collapse', () => {
         triggerTwo.click()
       }
 
-      function secondTest() {
+      const secondTest = () => {
         expect(collapseOneOne.classList.contains('show')).toEqual(false)
         expect(collapseOneTwo.classList.contains('show')).toEqual(false)
 
@@ -816,7 +816,7 @@ describe('Collapse', () => {
       const collapseTwo = fixtureEl.querySelector('#collapseTwo')
       const nestedCollapseOne = fixtureEl.querySelector('#nestedCollapseOne')
 
-      function handlerCollapseOne() {
+      const handlerCollapseOne = () => {
         expect(collapseOne.classList.contains('show')).toEqual(true)
         expect(collapseTwo.classList.contains('show')).toEqual(false)
         expect(nestedCollapseOne.classList.contains('show')).toEqual(false)
@@ -826,7 +826,7 @@ describe('Collapse', () => {
         collapseOne.removeEventListener('shown.bs.collapse', handlerCollapseOne)
       }
 
-      function handlerNestedCollapseOne() {
+      const handlerNestedCollapseOne = () => {
         expect(collapseOne.classList.contains('show')).toEqual(true)
         expect(collapseTwo.classList.contains('show')).toEqual(false)
         expect(nestedCollapseOne.classList.contains('show')).toEqual(true)
diff --git a/js/tests/unit/scrollspy.spec.js b/js/tests/unit/scrollspy.spec.js
index ad44d5b3c..66e4cd7bf 100644
--- a/js/tests/unit/scrollspy.spec.js
+++ b/js/tests/unit/scrollspy.spec.js
@@ -15,7 +15,7 @@ describe('ScrollSpy', () => {
     const paddingTop = 5
     const scrollHeight = Math.ceil(contentEl.scrollTop + Manipulator.position(target).top) + paddingTop
 
-    function listener() {
+    const listener = () => {
       expect(element.classList.contains('active')).toEqual(true)
       contentEl.removeEventListener('scroll', listener)
       expect(scrollSpy._process).toHaveBeenCalled()
diff --git a/js/tests/unit/util/index.spec.js b/js/tests/unit/util/index.spec.js
index 38e94dc6b..2563aad8f 100644
--- a/js/tests/unit/util/index.spec.js
+++ b/js/tests/unit/util/index.spec.js
@@ -625,9 +625,9 @@ describe('Util', () => {
     })
 
     it('should define a plugin on the jQuery instance', () => {
-      const pluginMock = function () {}
+      const pluginMock = () => {}
       pluginMock.NAME = 'test'
-      pluginMock.jQueryInterface = function () {}
+      pluginMock.jQueryInterface = () => {}
 
       Util.defineJQueryPlugin(pluginMock)
       expect(fakejQuery.fn.test).toBe(pluginMock.jQueryInterface)
diff --git a/js/tests/unit/util/sanitizer.spec.js b/js/tests/unit/util/sanitizer.spec.js
index 7379d221f..6aa307f72 100644
--- a/js/tests/unit/util/sanitizer.spec.js
+++ b/js/tests/unit/util/sanitizer.spec.js
@@ -55,6 +55,7 @@ describe('Sanitizer', () => {
         '</div>'
       ].join('')
 
+      // eslint-disable-next-line func-style
       function mySanitize(htmlUnsafe) {
         return htmlUnsafe
       }