Prevent monkey patching

This doesn't affect globals (describe, it, expect, etc). Those belong to
the user and Jasmine doesn't depend on them.

src/core/Clock.js

@@ -192,6 +192,8 @@ callbacks to execute _before_ running the next one.
     setInterval[IsMockClockTimingFn] = true;
     clearInterval[IsMockClockTimingFn] = true;
 
+    Object.freeze(this);
+
     return this;
 
     // Advances the Clock's time until the mode changes.
@@ -345,5 +347,7 @@ callbacks to execute _before_ running the next one.
   };
 
   Clock.IsMockClockTimingFn = IsMockClockTimingFn;
+  Object.freeze(Clock);
+  Object.freeze(Clock.prototype);
   return Clock;
 };

src/core/Env.js

@@ -835,6 +835,8 @@ getJasmineRequireObj().Env = function(j$, private$) {
     this.cleanup_ = function() {
       uninstallGlobalErrors();
     };
+
+    Object.freeze(this);
   }
 
   function indirectCallerFilename(depth) {
@@ -845,5 +847,7 @@ getJasmineRequireObj().Env = function(j$, private$) {
     return frames[depth] && frames[depth].file;
   }
 
+  Object.freeze(Env);
+  Object.freeze(Env.prototype);
   return Env;
 };

src/core/ParallelReportDispatcher.js

@@ -87,8 +87,11 @@ getJasmineRequireObj().ParallelReportDispatcher = function(j$, private$) {
       for (const eventName of private$.reporterEvents) {
         this[eventName] = dispatcher[eventName].bind(dispatcher);
       }
+
+      Object.freeze(this);
     }
   }
 
+  Object.freeze(ParallelReportDispatcher.prototype);
   return ParallelReportDispatcher;
 };

src/core/Timer.js

@@ -39,7 +39,11 @@ getJasmineRequireObj().Timer = function() {
     this.elapsed = function() {
       return now() - startTime;
     };
+
+    Object.freeze(this);
   }
 
+  Object.freeze(Timer);
+  Object.freeze(Timer.prototype);
   return Timer;
 };

src/core/base.js

@@ -43,6 +43,7 @@ getJasmineRequireObj().base = function(j$, private$, jasmineGlobal) {
    */
   let DEFAULT_TIMEOUT_INTERVAL = 5000;
   Object.defineProperty(j$, 'DEFAULT_TIMEOUT_INTERVAL', {
+    enumerable: true,
     get: function() {
       return DEFAULT_TIMEOUT_INTERVAL;
     },

src/core/requireCore.js

@@ -116,6 +116,28 @@ const getJasmineRequireObj = (function() {
 
     private$.loadedAsBrowserEsm = loadedAsBrowserEsm;
 
+    // Prevent monkey patching of existing properties but allow adding new ones.
+    // jasmine-html.js needs to be able to add to the jasmine namespace.
+    // jasmine-ajax also installs itself this way.
+    const writeable = [
+      'DEFAULT_TIMEOUT_INTERVAL',
+      'MAX_PRETTY_PRINT_ARRAY_LENGTH',
+      'MAX_PRETTY_PRINT_CHARS',
+      'MAX_PRETTY_PRINT_DEPTH'
+    ];
+    const descriptors = Object.getOwnPropertyDescriptors(j$);
+
+    for (const [k, d] of Object.entries(descriptors)) {
+      if (!writeable.includes(k)) {
+        Object.defineProperty(j$, k, {
+          value: d.value,
+          enumerable: d.enumerable,
+          configurable: false,
+          writable: false
+        });
+      }
+    }
+
     return { jasmine: j$, private: private$ };
   };
 

src/html/HtmlReporterV2.js

@@ -98,6 +98,8 @@ getJasmineHtmlRequireObj().HtmlReporterV2 = function(j$, private$) {
       );
       this.#container.appendChild(this.#htmlReporterMain);
       this.#failures.show();
+
+      Object.freeze(this);
     }
 
     jasmineStarted(options) {
@@ -275,5 +277,6 @@ getJasmineHtmlRequireObj().HtmlReporterV2 = function(j$, private$) {
     }
   }
 
+  Object.freeze(HtmlReporterV2.prototype);
   return HtmlReporterV2;
 };

src/html/HtmlReporterV2Urls.js

@@ -18,6 +18,8 @@ getJasmineHtmlRequireObj().HtmlReporterV2Urls = function(j$, private$) {
             return window.location;
           }
         });
+
+      Object.freeze(this);
     }
 
     /**
@@ -68,5 +70,6 @@ getJasmineHtmlRequireObj().HtmlReporterV2Urls = function(j$, private$) {
     }
   }
 
+  Object.freeze(HtmlReporterV2Urls.prototype);
   return HtmlReporterV2Urls;
 };

src/html/QueryString.js

@@ -14,6 +14,7 @@ getJasmineHtmlRequireObj().QueryString = function() {
      */
     constructor(options) {
       this.#getWindowLocation = options.getWindowLocation;
+      Object.freeze(this);
     }
 
     /**
@@ -81,5 +82,6 @@ getJasmineHtmlRequireObj().QueryString = function() {
     return '?' + qStrPairs.join('&');
   }
 
+  Object.freeze(QueryString.prototype);
   return QueryString;
 };

src/html/requireHtml.js

@@ -25,10 +25,16 @@ const getJasmineHtmlRequireObj = (function() {
     private$.FailuresView = htmlRequire.FailuresView(j$, private$);
     private$.PerformanceView = htmlRequire.PerformanceView(j$, private$);
     private$.TabBar = htmlRequire.TabBar(j$, private$);
-    j$.HtmlReporterV2Urls = htmlRequire.HtmlReporterV2Urls(j$, private$);
-    j$.HtmlReporterV2 = htmlRequire.HtmlReporterV2(j$, private$);
-    j$.QueryString = htmlRequire.QueryString();
     private$.HtmlSpecFilterV2 = htmlRequire.HtmlSpecFilterV2();
+
+    for (const k of ['HtmlReporterV2Urls', 'HtmlReporterV2', 'QueryString']) {
+      Object.defineProperty(j$, k, {
+        enumerable: true,
+        configurable: false,
+        writable: false,
+        value: htmlRequire[k](j$, private$)
+      });
+    }
   };
 
   return getJasmineHtmlRequire;