nodejs
diff --git a/Collapse file
‎lib/internal/assert.js‎
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+1-1Lines changed: 1 addition & 1 deletion b/Collapse file
‎lib/internal/assert.js‎
Copy file name to clipboardExpand all lines: lib/internal/assert.js
+1-1Lines changed: 1 addition & 1 deletion
diff --git a/Collapse file
‎test/parallel/test-assert.js‎
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+10Lines changed: 10 additions & 0 deletions b/Collapse file
‎test/parallel/test-assert.js‎
Copy file name to clipboardExpand all lines: test/parallel/test-assert.js
+10Lines changed: 10 additions & 0 deletions
@@ -196,7 +196,7 @@ class AssertionError extends Error {
     } = options;
 
     if (message != null) {
-      super(message);
+      super(String(message));
     } else {
       if (process.stdout.isTTY) {
         // Reset on each call to make sure we handle dynamically set environment
 
@@ -640,6 +640,16 @@ common.expectsError(
   }
 );
 
+common.expectsError(
+  () => assert(false, Symbol('foo')),
+  {
+    code: 'ERR_ASSERTION',
+    type: assert.AssertionError,
+    generatedMessage: false,
+    message: 'Symbol(foo)'
+  }
+);
+
 {
   // Test caching.
   const fs = process.binding('fs');