test: fix common.expectsError

The function should strictly test for the error class and only accept
the correct one. Any other error class should fail.

PR-URL: https://github.com/nodejs/node/pull/13686
Fixes: https://github.com/nodejs/node/issues/13682
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Michaël Zasso <targos@protonmail.com>

1 files changed, 5 insertions, 0 deletions

diff --git a/test/common/index.js b/test/common/index.js
index 7a2cebac5f..e6236b1be6 100644
--- a/test/common/index.js
+++ b/test/common/index.js
@@ -744,6 +744,11 @@ exports.expectsError = function expectsError(fn, settings, exact) {
       }
       assert(error instanceof type,
              `${error.name} is not instance of ${type.name}`);
+      let typeName = error.constructor.name;
+      if (typeName === 'NodeError' && type.name !== 'NodeError') {
+        typeName = Object.getPrototypeOf(error.constructor).name;
+      }
+      assert.strictEqual(typeName, type.name);
     }
     if ('message' in settings) {
       const message = settings.message;