2 files changed, 6 insertions, 6 deletions
diff --git a/devtools/client/shared/components/test/node/__mocks__/object-front.js b/devtools/client/shared/components/test/node/__mocks__/object-front.js
index def182111d..5913deb82e 100644
--- a/devtools/client/shared/components/test/node/__mocks__/object-front.js
+++ b/devtools/client/shared/components/test/node/__mocks__/object-front.js
@@ -14,7 +14,7 @@ function ObjectFront(grip, overrides) {
         })
       );
     },
-    enumProperties(options) {
+    enumProperties() {
       return Promise.resolve(
         this.getIterator({
           ownProperties: {},
@@ -43,7 +43,7 @@ function ObjectFront(grip, overrides) {
     // Declared here so we can override it.
     getIterator(res) {
       return {
-        slice(start, count) {
+        slice() {
           return Promise.resolve(res);
         },
       };
diff --git a/devtools/client/shared/components/test/node/components/tree.test.js b/devtools/client/shared/components/test/node/components/tree.test.js
index c70b66e8ff..eb6f95fa7d 100644
--- a/devtools/client/shared/components/test/node/components/tree.test.js
+++ b/devtools/client/shared/components/test/node/components/tree.test.js
@@ -50,12 +50,12 @@ function mountTree(overrides = {}) {
                 getKey: x => `key-${x}`,
                 itemHeight: 1,
                 onFocus: x => {
-                  this.setState(previousState => {
+                  this.setState(() => {
                     return { focused: x };
                   });
                 },
                 onActivate: x => {
-                  this.setState(previousState => {
+                  this.setState(() => {
                     return { active: x };
                   });
                 },
@@ -207,7 +207,7 @@ describe("Tree", () => {
   });
 
   it("calls shouldItemUpdate when provided", () => {
-    const shouldItemUpdate = jest.fn((prev, next) => true);
+    const shouldItemUpdate = jest.fn(() => true);
     const wrapper = mountTree({
       shouldItemUpdate,
     });
@@ -636,7 +636,7 @@ describe("Tree", () => {
   it("renders as expected navigating with arrows on unexpandable roots", () => {
     const wrapper = mountTree({
       focused: "A",
-      isExpandable: item => false,
+      isExpandable: () => false,
     });
     expect(formatTree(wrapper)).toMatchSnapshot();