fix(tests): Improve test output (#16449)

* fix(tests): Improve test output

Switches test-challengse from tap-spec to tap-difflet in
pessimistic mode for a more concise test output.
Also removes unused gulp tasks.

Closes #16406

* build(npm-script): Update scripts to have developer mode test run

gulpfile.js

@@ -38,15 +38,7 @@ const Rx = require('rx'),
 
   // rev
   rev = require('gulp-rev'),
-  revDel = require('rev-del'),
+  revDel = require('rev-del');
-
-  // lint
-  jsonlint = require('gulp-jsonlint'),
-  eslint = require('gulp-eslint'),
-
-  // unit-tests
-  tape = require('gulp-tape'),
-  tapSpec = require('tap-spec');
 
 Rx.config.longStackSupport = true;
 const sync = browserSync.create('fcc-sync-server');
@@ -246,27 +238,6 @@ gulp.task('dev-server', syncDepenedents, function() {
   });
 });
 
-gulp.task('lint-js', function() {
-  return gulp.src([
-    'common/**/*.js',
-    'common/**/*.jsx',
-    'client/**/*.js',
-    'client/**/*.jsx',
-    'server/**/*.js',
-    'config/**/*.js'
-  ])
-    .pipe(eslint())
-    .pipe(eslint.format());
-});
-
-gulp.task('lint-json', function() {
-  return gulp.src(paths.challenges)
-    .pipe(jsonlint())
-    .pipe(jsonlint.reporter());
-});
-
-gulp.task('test-challenges', ['lint-json']);
-
 gulp.task('pack-client', function() {
   if (!__DEV__) { console.log('\n\nbundling production\n\n'); }
 
@@ -448,10 +419,3 @@ gulp.task('default', [
   'dev-server',
   'pack-frame-runner'
 ]);
-
-gulp.task('test', function() {
-  return gulp.src('test/**/*.js')
-    .pipe(tape({
-      reporter: tapSpec()
-    }));
-});

package.json

@@ -24,8 +24,10 @@
     "snyk-protect": "snyk protect",
     "start": "babel-node server/server.js",
     "start-production": "node pm2Start",
-    "test-challenges": "babel-node seed/test-challenges.js | tap-spec",
     "test": "npm run test-js && npm run test-challenges",
+    "test-develop": "npm run test-js && npm run test-challenges-develop",
+    "test-challenges": "babel-node seed/test-challenges.js | tap-spec",
+    "test-challenges-develop": "babel-node seed/test-challenges.js | tap-difflet -p",
     "test-js": "npm run test-js-client && npm run test-js-common && npm run test-js-server",
     "test-js-client": "tape -r babel-register \"client/**/*.test.js\" | tap-spec",
     "test-js-common": "tape -r babel-register \"common/**/*.test.js\" | tap-spec",
@@ -156,8 +158,6 @@
     "gulp": "^3.9.1",
     "gulp-babel": "^6.1.1",
     "gulp-concat": "^2.6.0",
-    "gulp-eslint": "^3.0.1",
-    "gulp-jsonlint": "^1.1.0",
     "gulp-less": "^3.0.3",
     "gulp-nodemon": "^2.0.3",
     "gulp-notify": "^3.0.0",
@@ -165,7 +165,6 @@
     "gulp-reduce-file": "0.0.1",
     "gulp-rev": "^7.0.0",
     "gulp-sourcemaps": "^2.2.1",
-    "gulp-tape": "0.0.9",
     "gulp-uglify": "^2.0.0",
     "gulp-util": "^3.0.6",
     "husky": "^0.14.3",
@@ -182,6 +181,7 @@
     "rev-del": "^1.0.5",
     "sinon": "^2.0.0",
     "sort-keys": "^1.1.1",
+    "tap-difflet": "^0.7.0",
     "tap-spec": "^4.1.1",
     "tape": "^4.2.2",
     "uglifyjs-webpack-plugin": "^1.1.8",