feat($exceptionHandlerProvider): add mode logAndRethrow

src/ngMock/angular-mocks.js

@@ -243,31 +243,31 @@ angular.mock.$ExceptionHandlerProvider = function() {
    *
    * @param {string} mode Mode of operation, defaults to `rethrow`.
    *
-   *   - `rethrow`: If any errors are passed to the handler in tests, it typically means that there
-   *                is a bug in the application or test, so this mock will make these tests fail.
    *   - `log`: Sometimes it is desirable to test that an error is thrown, for this case the `log`
    *            mode stores an array of errors in `$exceptionHandler.errors`, to allow later
    *            assertion of them. See {@link ngMock.$log#assertEmpty assertEmpty()} and
    *            {@link ngMock.$log#reset reset()}
+   *   - `rethrow`: If any errors are passed to the handler in tests, it typically means that there
+   *                is a bug in the application or test, so this mock will make these tests fail.
+   *                For any impementations that expect exceptions to be thrown, the `rethrow` mode
+   *                will also maintain a log of thrown errors.
    */
   this.mode = function(mode) {
+
     switch (mode) {
-      case 'rethrow':
-        handler = function(e) {
-          throw e;
-        };
-        break;
       case 'log':
+      case 'rethrow':
         var errors = [];
-
         handler = function(e) {
           if (arguments.length == 1) {
             errors.push(e);
           } else {
             errors.push([].slice.call(arguments, 0));
           }
+          if (mode === "rethrow") {
+            throw e;
+          }
         };
-
         handler.errors = errors;
         break;
       default:

test/ngMock/angular-mocksSpec.js

@@ -592,22 +592,42 @@ describe('ngMock', function() {
     }));
 
 
-    it('should log exceptions', module(function($exceptionHandlerProvider) {
-      $exceptionHandlerProvider.mode('log');
-      var $exceptionHandler = $exceptionHandlerProvider.$get();
-      $exceptionHandler('MyError');
-      expect($exceptionHandler.errors).toEqual(['MyError']);
-
-      $exceptionHandler('MyError', 'comment');
-      expect($exceptionHandler.errors[1]).toEqual(['MyError', 'comment']);
-    }));
+    it('should log exceptions', function() {
+      module(function($exceptionHandlerProvider) {
+        $exceptionHandlerProvider.mode('log');
+      });
+      inject(function($exceptionHandler) {
+        $exceptionHandler('MyError');
+        expect($exceptionHandler.errors).toEqual(['MyError']);
 
+        $exceptionHandler('MyError', 'comment');
+        expect($exceptionHandler.errors[1]).toEqual(['MyError', 'comment']);
+      });
+    });
+
+    it('should log and rethrow exceptions', function() {
+      module(function($exceptionHandlerProvider) {
+        $exceptionHandlerProvider.mode('rethrow');
+      });
+      inject(function($exceptionHandler) {
+        expect(function() { $exceptionHandler('MyError'); }).toThrow('MyError');
+        expect($exceptionHandler.errors).toEqual(['MyError']);
+
+        expect(function() { $exceptionHandler('MyError', 'comment'); }).toThrow('MyError');
+        expect($exceptionHandler.errors[1]).toEqual(['MyError', 'comment']);
+      });
+    });
+
+    it('should throw on wrong argument', function() {
+      module(function($exceptionHandlerProvider) {
+        expect(function() {
+          $exceptionHandlerProvider.mode('XXX');
+        }).toThrow("Unknown mode 'XXX', only 'log'/'rethrow' modes are allowed!");
+      });
+
+      inject(); // Trigger the tests in `module`
+    });
 
-    it('should throw on wrong argument', module(function($exceptionHandlerProvider) {
-      expect(function() {
-        $exceptionHandlerProvider.mode('XXX');
-      }).toThrow("Unknown mode 'XXX', only 'log'/'rethrow' modes are allowed!");
-    }));
   });