Add tests for destroy()

tests/browser/packages/core/application/destroy.test.js

@@ -0,0 +1,59 @@
+import { Application } from "@aedart/core";
+
+describe('@aedart/core', () => {
+    describe('destroy', () => {
+
+        it('can destroy application', async () => {
+
+            const identifier = Symbol('my_instance');
+            class A {}
+
+            const app = new Application();
+
+            // ------------------------------------------------------------------------------- //
+
+            app.bind(identifier, A);
+
+            await app.run();
+
+            app.destroy();
+
+            // ------------------------------------------------------------------------------- //
+
+            expect(app.isRunning())
+                .withContext('application should NOT be running')
+                .toBeFalse();
+
+            expect(app.hasBooted())
+                .withContext('application should NOT be booted')
+                .toBeFalse();
+
+            expect(app.hasBeenBootstrapped())
+                .withContext('application should NOT be bootstrapped')
+                .toBeFalse();
+
+            expect(app.bound(identifier))
+                .withContext('application should NOT have any bindings')
+                .toBeFalse();
+        });
+
+        it('invokes destroy callbacks', () => {
+            const app = new Application();
+
+            let invoked = false;
+            const callback = () => {
+                invoked = true;
+            }
+
+            // ------------------------------------------------------------------------------- //
+
+            app
+                .destroying(callback)
+                .destroy();
+
+            expect(invoked)
+                .withContext('destroy callback not invoked')
+                .toBeTrue();
+        });
+    });
+});