20240517

node_modules/es5-shim/tests/spec/s-error.js

@@ -0,0 +1,49 @@
+describe('Error', function () {
+    'use strict';
+
+    var supportsDescriptors = Object.defineProperty && (function () {
+        try {
+            var obj = {};
+            Object.defineProperty(obj, 'x', { enumerable: false, value: obj });
+            // eslint-disable-next-line no-unreachable-loop
+            for (var _ in obj) { return false; } // jscs:ignore disallowUnusedVariables
+            return obj.x === obj;
+        } catch (e) { /* this is ES3 */
+            return false;
+        }
+    }());
+    var ifSupportsDescriptorsIt = supportsDescriptors ? it : xit;
+
+    describe('#toString()', function () {
+        it('stringifies a newed error properly', function () {
+            var msg = 'test';
+            var error = new RangeError(msg);
+            expect(error.name).toBe('RangeError');
+            expect(error.message).toBe(msg);
+            expect(String(error)).toBe(error.name + ': ' + msg);
+        });
+
+        it('stringifies a thrown error properly', function () {
+            var msg = 'test';
+            var error;
+            try {
+                throw new RangeError(msg);
+            } catch (e) {
+                error = e;
+            }
+            expect(error.name).toBe('RangeError');
+            expect(error.message).toBe(msg);
+            expect(String(error)).toBe(error.name + ': ' + msg);
+        });
+    });
+
+    describe('enumerability of prototype properties', function () {
+        ifSupportsDescriptorsIt('#message', function () {
+            expect(Object.prototype.propertyIsEnumerable.call(Error.prototype, 'message')).toBe(false);
+        });
+
+        ifSupportsDescriptorsIt('#name', function () {
+            expect(Object.prototype.propertyIsEnumerable.call(Error.prototype, 'name')).toBe(false);
+        });
+    });
+});