DefinitelyTyped/types/gulp/gulp-tests.ts

import gulp = require("gulp");

var typescript: gulp.GulpPlugin = null; // this would be the TypeScript compiler
var jasmine: gulp.GulpPlugin = null; // this would be the jasmine test runner

gulp.task('compile', function() {
    gulp.src("**/*.ts")
        .pipe(typescript())
        .pipe(gulp.dest('out'))
});

gulp.task('compile2', function(callback: (err?: any) => void) {
    gulp.src("**/*.ts")
        .pipe(typescript())
        .pipe(gulp.dest('out'))
        .on('end', callback);
});

gulp.task('test', ['compile', 'compile2'], function() {
    gulp.src("out/test/**/*.js")
        .pipe(jasmine());
});

gulp.task('default', ['compile', 'test']);

gulp.task('another', ['with1', 'with2'])
    .task('some', ['other1', 'other2'], function(cb) { cb(null); })
    .task('last', function() { });


var opts = {};

gulp.watch('*.html', 'compile');
gulp.watch('*.html', ['compile', 'test']);
gulp.watch('*.html', () => {});
gulp.watch('*.html', [() => {}, (event) => {}]);
gulp.watch('*.html', ['compile', () => {}]);

gulp.watch('*.html', opts, 'compile');
gulp.watch('*.html', opts, ['compile', 'test']);
gulp.watch('*.html', opts, () => {});
gulp.watch('*.html', opts, [() => {}, (event) => {}]);
gulp.watch('*.html', opts, ['compile', () => {}]);

gulp.watch(['*.html', '*.ts'], 'compile');
gulp.watch(['*.html', '*.ts'], ['compile', 'test']);
gulp.watch(['*.html', '*.ts'], () => {});
gulp.watch(['*.html', '*.ts'], [() => {}, (event) => {}]);
gulp.watch(['*.html', '*.ts'], ['compile', () => {}]);

gulp.watch(['*.html', '*.ts'], opts, 'compile');
gulp.watch(['*.html', '*.ts'], opts, ['compile', 'test']);
gulp.watch(['*.html', '*.ts'], opts, () => {});
gulp.watch(['*.html', '*.ts'], opts, [() => {}, (event) => {}]);
gulp.watch(['*.html', '*.ts'], opts, ['compile', () => {}]);

var watcher = gulp.watch('*.html', event => {
    console.log('Event type: ' + event.type);
    console.log('Event path: ' + event.path);
});

gulp.task('serve', ['compile'], () => {
    gulp.watch(['*.html', '*.ts'], ['compile', () => { return "data"; }]);
});

gulp.start('test', 'compile');