diff --git a/test/config/jest-playwright.cjs b/test/config/jest-playwright.cjs
index 566f2ab61f..e096f6bb24 100644
--- a/test/config/jest-playwright.cjs
+++ b/test/config/jest-playwright.cjs
@@ -110,7 +110,7 @@ const computeConfigurationForDevelopmentServerUsage = defaultBrowsers => {
 const computeConfiguration = options => {
   let configuration;
   configuration =
-    options.startWebServer ?? true ? computeConfigurationForDevelopmentServerUsage(options.defaultBrowsers) : computeConfigurationForStaticUsage(options.defaultBrowsers);
+    (options.startWebServer ?? true) ? computeConfigurationForDevelopmentServerUsage(options.defaultBrowsers) : computeConfigurationForStaticUsage(options.defaultBrowsers);
   log('Computed configuration', configuration);
   return configuration;
 };
diff --git a/test/performance/bpmn.load.performance.test.ts b/test/performance/bpmn.load.performance.test.ts
index 19e3948f42..3837c4faef 100644
--- a/test/performance/bpmn.load.performance.test.ts
+++ b/test/performance/bpmn.load.performance.test.ts
@@ -51,7 +51,7 @@ afterAll(async () => {
   await metricsCollector.destroy().then(() => {
     try {
       const oldDataString = fs.readFileSync(performanceDataFilePath, 'utf8');
-      const oldData = JSON.parse(oldDataString.slice('const data = '.length, oldDataString.length)) as ChartData;
+      const oldData = JSON.parse(oldDataString.slice('const data = '.length)) as ChartData;
       const data = {
         zoom: oldData.zoom,
         load: [...oldData.load, ...metricsArray],
diff --git a/test/performance/bpmn.navigation.performance.test.ts b/test/performance/bpmn.navigation.performance.test.ts
index cbe6573cb3..01fb9918b9 100644
--- a/test/performance/bpmn.navigation.performance.test.ts
+++ b/test/performance/bpmn.navigation.performance.test.ts
@@ -76,7 +76,7 @@ afterAll(async () => {
   await metricsCollector.destroy().then(() => {
     try {
       const oldDataString = fs.readFileSync(performanceDataFilePath, 'utf8');
-      const oldData = JSON.parse(oldDataString.slice('const data = '.length, oldDataString.length)) as ChartData;
+      const oldData = JSON.parse(oldDataString.slice('const data = '.length)) as ChartData;
       const data = {
         zoom: [...oldData.zoom, ...metricsArray],
         load: oldData.load,
diff --git a/test/unit/helpers/JsonBuilder.ts b/test/unit/helpers/JsonBuilder.ts
index d41a43248e..97c4e98e5f 100644
--- a/test/unit/helpers/JsonBuilder.ts
+++ b/test/unit/helpers/JsonBuilder.ts
@@ -553,7 +553,7 @@ function addEventDefinitions(
             ...(typeof eventDefinition === 'object' ? eventDefinition : { id: eventDefinition }),
             ...buildEventDefinition(eventDefinitionKind, idSuffix, source, target),
           }
-        : eventDefinition ?? '';
+        : (eventDefinition ?? '');
 
     addEventDefinition(elementWhereAddDefinition, eventDefinitionKind, eventDefinitions);
   }