Run single wct test through gulp task

Question

How do I have to create a single gulp task to run a single wct test? I have the following project structure:

|-build
|--gulpfile.babel.js
|--wct.conf.js
|-test
|--test-folder1
|----t-test1.html
|----t-test1.js
|--test-folder2
|----t-test2.html
|----t-test2.js

Inside my gulpfile.babel.js I would like to create separate tasks for t-test1 and t-test2.

Pseudo code:

gulp.task('test1', (done) => { 
    <RUN WCT TEST FROM FOLDER t-folder1>; // Is there a way to trigger single test here???
    done();
});

gulp.task('test2', (done) => { 
    <RUN WCT TEST FROM FOLDER t-folder2>; // Is there a way to trigger single test here???
    done();
});

I couldn't find any sample code for this.

Any help is appreciated.