2 files changed, 4 insertions, 4 deletions
diff --git a/devtools/client/debugger/src/actions/tests/expressions.spec.js b/devtools/client/debugger/src/actions/tests/expressions.spec.js
index c69276fa40..093f99e228 100644
--- a/devtools/client/debugger/src/actions/tests/expressions.spec.js
+++ b/devtools/client/debugger/src/actions/tests/expressions.spec.js
@@ -6,7 +6,7 @@ import { actions, selectors, createStore } from "../../utils/test-head";
 
 const mockThreadFront = {
   evaluate: (script, { frameId }) =>
-    new Promise((resolve, reject) => {
+    new Promise(resolve => {
       if (!frameId) {
         resolve("bla");
       } else {
@@ -16,8 +16,8 @@ const mockThreadFront = {
   evaluateExpressions: (inputs, { frameId }) =>
     Promise.all(
       inputs.map(
-        input =>
-          new Promise((resolve, reject) => {
+        () =>
+          new Promise(resolve => {
             if (!frameId) {
               resolve("bla");
             } else {
diff --git a/devtools/client/debugger/src/actions/tests/helpers/mockCommandClient.js b/devtools/client/debugger/src/actions/tests/helpers/mockCommandClient.js
index 38dd55c274..2e0333fc99 100644
--- a/devtools/client/debugger/src/actions/tests/helpers/mockCommandClient.js
+++ b/devtools/client/debugger/src/actions/tests/helpers/mockCommandClient.js
@@ -29,7 +29,7 @@ const sources = [
 ];
 
 export const mockCommandClient = {
-  sourceContents: function ({ source }) {
+  sourceContents({ source }) {
     return new Promise((resolve, reject) => {
       if (sources.includes(source)) {
         resolve(createSource(source));