From 8d99f27be89748225b21dd7b7a62491055f118ea Mon Sep 17 00:00:00 2001
From: Steve Gravrock <sdg@panix.com>
Date: Sat, 23 Aug 2025 08:19:11 -0700
Subject: [PATCH] Throw an Error rather than a string when createSpyObj is
 called incorectly

---
 lib/jasmine-core/jasmine.js | 4 +++-
 spec/core/SpySpec.js        | 6 +++---
 src/core/SpyFactory.js      | 4 +++-
 3 files changed, 9 insertions(+), 5 deletions(-)

diff --git a/lib/jasmine-core/jasmine.js b/lib/jasmine-core/jasmine.js
index 10f28f93..d4a5ae4e 100644
--- a/lib/jasmine-core/jasmine.js
+++ b/lib/jasmine-core/jasmine.js
@@ -9964,7 +9964,9 @@ getJasmineRequireObj().SpyFactory = function(j$) {
       }
 
       if (methods.length === 0 && properties.length === 0) {
-        throw 'createSpyObj requires a non-empty array or object of method names to create spies for';
+        throw new Error(
+          'createSpyObj requires a non-empty array or object of method names to create spies for'
+        );
       }
 
       return obj;
diff --git a/spec/core/SpySpec.js b/spec/core/SpySpec.js
index 323bd5ca..d880d290 100644
--- a/spec/core/SpySpec.js
+++ b/spec/core/SpySpec.js
@@ -153,7 +153,7 @@ describe('Spies', function() {
     it('should throw if you do not pass an array or object argument', function() {
       expect(function() {
         env.createSpyObj('BaseName');
-      }).toThrow(
+      }).toThrowError(
         'createSpyObj requires a non-empty array or object of method names to create spies for'
       );
     });
@@ -161,7 +161,7 @@ describe('Spies', function() {
     it('should throw if you pass an empty array argument', function() {
       expect(function() {
         env.createSpyObj('BaseName', []);
-      }).toThrow(
+      }).toThrowError(
         'createSpyObj requires a non-empty array or object of method names to create spies for'
       );
     });
@@ -169,7 +169,7 @@ describe('Spies', function() {
     it('should throw if you pass an empty object argument', function() {
       expect(function() {
         env.createSpyObj('BaseName', {});
-      }).toThrow(
+      }).toThrowError(
         'createSpyObj requires a non-empty array or object of method names to create spies for'
       );
     });
diff --git a/src/core/SpyFactory.js b/src/core/SpyFactory.js
index a9768e1e..512a8912 100644
--- a/src/core/SpyFactory.js
+++ b/src/core/SpyFactory.js
@@ -54,7 +54,9 @@ getJasmineRequireObj().SpyFactory = function(j$) {
       }
 
       if (methods.length === 0 && properties.length === 0) {
-        throw 'createSpyObj requires a non-empty array or object of method names to create spies for';
+        throw new Error(
+          'createSpyObj requires a non-empty array or object of method names to create spies for'
+        );
       }
 
       return obj;