Allow currently registered reporters to be cleared

- jasmine/jasmine-npm#88

lib/jasmine-core/jasmine.js

@@ -792,6 +792,10 @@ getJasmineRequireObj().Env = function(j$) {
       reporter.provideFallbackReporter(reporterToAdd);
     };
 
+    this.clearReporters = function() {
+      reporter.clearReporters();
+    };
+
     var spyRegistry = new j$.SpyRegistry({currentSpies: function() {
       if(!currentRunnable()) {
         throw new Error('Spies must be created in a before function or a spec');
@@ -2017,11 +2021,14 @@ getJasmineRequireObj().ReportDispatcher = function() {
     this.addReporter = function(reporter) {
       reporters.push(reporter);
     };
-    
+
     this.provideFallbackReporter = function(reporter) {
       fallbackReporter = reporter;
     };
 
+    this.clearReporters = function() {
+      reporters = [];
+    };
 
     return this;
 

spec/core/ReportDispatcherSpec.js

@@ -45,7 +45,6 @@ describe("ReportDispatcher", function() {
     dispatcher.provideFallbackReporter(reporter);
     dispatcher.foo(123, 456);
     expect(reporter.foo).toHaveBeenCalledWith(123, 456);
-
   });
 
   it("does not call fallback reporting methods when another report is provided", function() {
@@ -59,6 +58,22 @@ describe("ReportDispatcher", function() {
 
     expect(reporter.foo).toHaveBeenCalledWith(123, 456);
     expect(fallbackReporter.foo).not.toHaveBeenCalledWith(123, 456);
+  });
 
+  it("allows registered reporters to be cleared", function() {
+    var dispatcher = new jasmineUnderTest.ReportDispatcher(['foo', 'bar']),
+        reporter1 = jasmine.createSpyObj('reporter1', ['foo', 'bar']),
+        reporter2 = jasmine.createSpyObj('reporter2', ['foo', 'bar']);
+
+    dispatcher.addReporter(reporter1);
+    dispatcher.foo(123);
+    expect(reporter1.foo).toHaveBeenCalledWith(123);
+
+    dispatcher.clearReporters();
+    dispatcher.addReporter(reporter2);
+    dispatcher.bar(456);
+
+    expect(reporter1.bar).not.toHaveBeenCalled();
+    expect(reporter2.bar).toHaveBeenCalledWith(456);
   });
 });

src/core/Env.js

@@ -278,6 +278,10 @@ getJasmineRequireObj().Env = function(j$) {
       reporter.provideFallbackReporter(reporterToAdd);
     };
 
+    this.clearReporters = function() {
+      reporter.clearReporters();
+    };
+
     var spyRegistry = new j$.SpyRegistry({currentSpies: function() {
       if(!currentRunnable()) {
         throw new Error('Spies must be created in a before function or a spec');

src/core/ReportDispatcher.js

@@ -18,11 +18,14 @@ getJasmineRequireObj().ReportDispatcher = function() {
     this.addReporter = function(reporter) {
       reporters.push(reporter);
     };
-    
+
     this.provideFallbackReporter = function(reporter) {
       fallbackReporter = reporter;
     };
 
+    this.clearReporters = function() {
+      reporters = [];
+    };
 
     return this;