add test when replace is false

src/core/public/application/application_service.test.ts

@@ -482,9 +482,6 @@ describe('#setup()', () => {
 
 describe('#start()', () => {
   beforeEach(() => {
-    MockHistory.push.mockReset();
-    parseAppUrlMock.mockReset();
-
     const http = httpServiceMock.createSetupContract({ basePath: '/base-path' });
     setupDeps = {
       http,
@@ -497,6 +494,12 @@ describe('#start()', () => {
     service = new ApplicationService();
   });
 
+  afterEach(() => {
+    MockHistory.push.mockReset();
+    MockHistory.replace.mockReset();
+    parseAppUrlMock.mockReset();
+  });
+
   it('rejects if called prior to #setup()', async () => {
     await expect(service.start(startDeps)).rejects.toThrowErrorMatchingInlineSnapshot(
       `"ApplicationService#setup() must be invoked before start."`
@@ -981,6 +984,22 @@ describe('#start()', () => {
         expect(setupDeps.redirectTo).toHaveBeenCalledWith('/test/app/alpha');
       });
     });
+
+    describe('when `replace` option is false', () => {
+      it('behave as when the option is unspecified', async () => {
+        service.setup(setupDeps);
+
+        const { navigateToApp } = await service.start(startDeps);
+
+        await navigateToApp('myTestApp', { replace: false });
+        expect(MockHistory.push).toHaveBeenCalledWith('/app/myTestApp', undefined);
+
+        await navigateToApp('myOtherApp', { replace: false });
+        expect(MockHistory.push).toHaveBeenCalledWith('/app/myOtherApp', undefined);
+
+        expect(MockHistory.replace).not.toHaveBeenCalled();
+      });
+    });
   });
 
   describe('navigateToUrl', () => {