Server : Apache/2.4.41 (Ubuntu) System : Linux absol.cf 5.4.0-198-generic #218-Ubuntu SMP Fri Sep 27 20:18:53 UTC 2024 x86_64 User : www-data ( 33) PHP Version : 7.4.33 Disable Function : pcntl_alarm,pcntl_fork,pcntl_waitpid,pcntl_wait,pcntl_wifexited,pcntl_wifstopped,pcntl_wifsignaled,pcntl_wifcontinued,pcntl_wexitstatus,pcntl_wtermsig,pcntl_wstopsig,pcntl_signal,pcntl_signal_get_handler,pcntl_signal_dispatch,pcntl_get_last_error,pcntl_strerror,pcntl_sigprocmask,pcntl_sigwaitinfo,pcntl_sigtimedwait,pcntl_exec,pcntl_getpriority,pcntl_setpriority,pcntl_async_signals,pcntl_unshare, Directory :  /usr/local/lib/node_modules/browserify/node_modules/stream-splicer/test/

Upload File : current_dir [ Writeable ] document_root [ Writeable ]

var pipeline = require('../');
var through = require('through2');
var test = require('tape');

test('unshift', function (t) {
    var expected = {};
    expected.a = [ 5, 6 ];
    expected.b = [ 3, 4, 500, 600 ];
    expected.c = [ 13, 14, 510, 610 ];
    expected.output = [ 13/2, 7, 255, 305 ];
    
    t.plan(2 + 4 + 4 + 4);
    
    var a = through.obj(function (x, enc, next) {
        var ex = expected.a.shift();
        t.equal(x, ex, 'a');
        this.push(x * 100);
        next();
    });
    var b = through.obj(function (x, enc, next) {
        var ex = expected.b.shift();
        t.equal(x, ex, 'b');
        if (expected.b.length === 2) p.unshift(a)
        this.push(x + 10);
        next();
    });
    var c = through.obj(function (x, enc, next) {
        var ex = expected.c.shift();
        t.equal(x, ex, 'c');
        this.push(x / 2);
        next();
    });
    
    var p = pipeline.obj([ b, c ]);
    p.pipe(through.obj(function (x, enc, next) {
        var ex = expected.output.shift();
        t.equal(x, ex);
        next();
    }));
    
    p.write(3);
    p.write(4);
    p.write(5);
    p.write(6);
    p.end();
});