diff --git a/schematics/scully/src/add-blog/index_spec.ts b/schematics/scully/src/add-blog/index_spec.ts
new file mode 100644
index 000000000..e55735212
--- /dev/null
+++ b/schematics/scully/src/add-blog/index_spec.ts
@@ -0,0 +1,38 @@
+import {HostTree} from '@angular-devkit/schematics';
+import {SchematicTestRunner, UnitTestTree} from '@angular-devkit/schematics/testing';
+import * as path from 'path';
+
+import {setupProject} from '../utils/test-utils';
+import {Schema} from './schema';
+
+const collectionPath = path.join(__dirname, '../collection.json');
+
+describe('add-blog schematic', () => {
+  const schematicRunner = new SchematicTestRunner('scully-schematics', collectionPath);
+  const project = 'foo';
+  const defaultOptions: Schema = {};
+  let appTree: UnitTestTree;
+
+  beforeEach(async () => {
+    appTree = new UnitTestTree(new HostTree());
+    appTree = await setupProject(appTree, schematicRunner, project);
+  });
+
+  describe('when using the default options', () => {
+    beforeEach(async () => {
+      appTree = await schematicRunner.runSchematicAsync('blog', defaultOptions, appTree).toPromise();
+    });
+
+    it('should have run the markdown schematic', () => {
+      expect(
+        schematicRunner.tasks.some(
+          task =>
+            task.name === 'run-schematic' &&
+            (task.options as any).name === 'create-markdown' &&
+            (task.options as any).options.name === 'blog' &&
+            (task.options as any).options.slug === 'slug'
+        )
+      ).toBe(true);
+    });
+  });
+});
diff --git a/schematics/scully/src/ng-add/index.ts b/schematics/scully/src/ng-add/index.ts
index 85146af9b..761fbcb93 100644
--- a/schematics/scully/src/ng-add/index.ts
+++ b/schematics/scully/src/ng-add/index.ts
@@ -15,6 +15,7 @@ export default (options: Schema): Rule => {
     addHttpClientModule(options),
     addPolyfill(options),
     injectIdleService(options),
+    runBlogSchematic(options),
     runScullySchematic(options),
   ]);
 };
@@ -134,17 +135,21 @@ const injectIdleService = (options: Schema) => (tree: Tree, context: SchematicCo
   }
 };
 
-const runScullySchematic = (options: Schema) => (tree: Tree, context: SchematicContext) => {
+const runBlogSchematic = (options: Schema) => (tree: Tree, context: SchematicContext) => {
   const nextRules: Rule[] = [];
   if (options.blog === true) {
-    // @ts-ignore
-    nextRules.push(context.addTask(new RunSchematicTask('blog', options), []));
+    nextRules.push((host: Tree, ctx: SchematicContext) => {
+      ctx.addTask(new RunSchematicTask('blog', options), []);
+    });
   }
-  // tslint:disable-next-line:no-shadowed-variable
-  nextRules.push((tree: Tree, context: SchematicContext) => {
-    const installTaskId = context.addTask(new NodePackageInstallTask());
-    context.addTask(new RunSchematicTask('run', options), [installTaskId]);
-  });
+  return chain(nextRules);
+};
 
+const runScullySchematic = (options: Schema) => (tree: Tree, context: SchematicContext) => {
+  const nextRules: Rule[] = [];
+  nextRules.push((host: Tree, ctx: SchematicContext) => {
+    const installTaskId = ctx.addTask(new NodePackageInstallTask());
+    ctx.addTask(new RunSchematicTask('run', options), [installTaskId]);
+  });
   return chain(nextRules);
 };
diff --git a/schematics/scully/src/ng-add/index_spec.ts b/schematics/scully/src/ng-add/index_spec.ts
index bdb3287e0..c9660d93b 100644
--- a/schematics/scully/src/ng-add/index_spec.ts
+++ b/schematics/scully/src/ng-add/index_spec.ts
@@ -59,5 +59,25 @@ describe('ng-add schematic', () => {
       const appModuleContent = getFileContent(appTree, 'src/app/app.component.ts');
       expect(appModuleContent).toMatch(/constructor*.*.private idle: IdleMonitorService/s);
     });
+
+    it('should run NodePackageInstallTask', () => {
+      expect(schematicRunner.tasks.some(task => task.name === 'node-package')).toBe(true);
+    });
+
+    it('should have run the blog schematic', () => {
+      expect(
+        schematicRunner.tasks.some(
+          task => task.name === 'run-schematic' && (task.options as any).name === 'blog'
+        )
+      ).toBe(true);
+    });
+
+    it('should have run the blog schematic', () => {
+      expect(
+        schematicRunner.tasks.some(
+          task => task.name === 'run-schematic' && (task.options as any).name === 'run'
+        )
+      ).toBe(true);
+    });
   });
 });
diff --git a/schematics/scully/src/scully/index_spec.ts b/schematics/scully/src/scully/index_spec.ts
index 2b91b5c9d..c6e6e4ebe 100644
--- a/schematics/scully/src/scully/index_spec.ts
+++ b/schematics/scully/src/scully/index_spec.ts
@@ -28,7 +28,7 @@ describe('scully schematic', () => {
       appTree = await schematicRunner.runSchematicAsync('scully', defaultOptions, appTree).toPromise();
     });
 
-    it('add config file', () => {
+    it('should create the scully config file when not exists', () => {
       expect(appTree.files).toContain(SCULLY_PATH);
     });
 
@@ -39,5 +39,14 @@ describe('scully schematic', () => {
       expect(scripts.scully).toEqual('scully');
       expect(scripts['scully:serve']).toEqual('scully serve');
     });
+
+    it(`should not override an existing scully config file'`, async () => {
+      appTree = new UnitTestTree(new HostTree());
+      appTree = await setupProject(appTree, schematicRunner, project);
+      appTree.create(SCULLY_PATH, 'foo');
+      appTree = await schematicRunner.runSchematicAsync('scully', defaultOptions, appTree).toPromise();
+      expect(appTree.files).toContain(PACKAGE_JSON_PATH);
+      expect(getFileContent(appTree, SCULLY_PATH)).toEqual('foo');
+    });
   });
 });