chore(lint): replace gulp check-task with tslint no-jasmine-focus rule

fixes angular#11800

gulpfile.js

@@ -125,22 +125,8 @@ gulp.task('public-api:update', ['build.sh'], (done) => {
       .on('close', done);
 });
 
-// Checks tests for presence of ddescribe, fdescribe, fit, iit and fails the build if one of the
-// focused tests is found.
-// Currently xdescribe and xit are _not_ reported as errors since there are a couple of excluded
-// tests in our code base.
-gulp.task('check-tests', function() {
-  const ddescribeIit = require('gulp-ddescribe-iit');
-  return gulp
-      .src([
-        'modules/**/*.spec.ts',
-        'modules/**/*_spec.ts',
-      ])
-      .pipe(ddescribeIit({allowDisabledTests: true}));
-});
-
 // Check the coding standards and programming errors
-gulp.task('lint', ['check-tests', 'format:enforce', 'tools:build'], () => {
+gulp.task('lint', ['format:enforce', 'tools:build'], () => {
   const tslint = require('gulp-tslint');
   // Built-in rules are at
   // https://github.com/palantir/tslint#supported-rules

modules/@angular/examples/testing/ts/testing.ts

@@ -21,6 +21,7 @@ describe('some component', () => {
 // #enddocregion
 
 // #docregion fdescribe
+/* tslint:disable-next-line:no-jasmine-focus */
 fdescribe('some component', () => {
   it('has a test', () => {
                        // This test will run.
@@ -43,6 +44,7 @@ describe('another component', () => {
 
 // #docregion fit
 describe('some component', () => {
+  /* tslint:disable-next-line:no-jasmine-focus */
   fit('has a test', () => {
                         // This test will run.
                     });

npm-shrinkwrap.clean.json

@@ -3416,24 +3416,6 @@
         }
       }
     },
-    "gulp-ddescribe-iit": {
-      "version": "1.3.0",
-      "dev": true,
-      "dependencies": {
-        "isarray": {
-          "version": "1.0.0",
-          "dev": true
-        },
-        "readable-stream": {
-          "version": "2.0.6",
-          "dev": true
-        },
-        "through2": {
-          "version": "2.0.1",
-          "dev": true
-        }
-      }
-    },
     "gulp-diff": {
       "version": "1.0.0",
       "dev": true,

npm-shrinkwrap.readme.md

@@ -47,5 +47,5 @@ To Remove an existing dependency do the following:
 3. ensure that your `node_modules` directory is not stale by running `npm install`
 4. run `npm uninstall --save-dev <packagename>@<version|latest>`
 5. run `./tools/npm/reshrinkwrap`
-6. these steps should change 3 files: `npm-shrinkwrap.json` and `npm-shrinkwrap.clean.json`.
+6. these steps should change 3 files: `package.json`, `npm-shrinkwrap.json` and `npm-shrinkwrap.clean.json`.
 7. commit changes to these three files and you are done

package.json

@@ -50,7 +50,6 @@
     "gulp-clang-format": "^1.0.23",
     "gulp-connect": "^2.3.1",
     "gulp-conventional-changelog": "^1.1.0",
-    "gulp-ddescribe-iit": "^1.3.0",
     "gulp-tslint": "^6.1.1",
     "incremental-dom": "^0.4.1",
     "jasmine": "^2.4.1",

tslint.json

@@ -7,6 +7,7 @@
     "enforce-copyright-header": true,
     "no-duplicate-imports": true,
     "no-duplicate-variable": true,
+    "no-jasmine-focus": true,
     "require-internal-with-underscore": true,
     "semicolon": [true],
     "variable-name": [true, "ban-keywords"]