mock-utf8-stream

    0.1.1 • Public • Published

    mock-utf8-stream

    Mock readable and writable streams for UTF-8 text. Useful for testing command-line programs by mocking stdin, stdout, and stderr.

    Example

    var assert = require("assert");
    var stream = require("mock-utf8-stream");
    
    var stdin = new stream.MockReadableStream();
    var stdout = new stream.MockWritableStream();
    
    function example(opts, cb) {
        opts.stdin.on("data", function (data) {
            if (data === "hello") {
                opts.stdout.write("hello\n");
            }
            cb(null);
        });
    }
    
    // Begin capturing data events.
    // You can read captured data as a UTF-8
    // string on the `stdout.capturedData` property.
    stdout.startCapture();
    
    example({
        stdin: stdin,
        stdout: stdout
    }, function (err) {
        if (err) { throw err; }
        assert.strictEqual(stdout.capturedData, "hello\n");
        console.log("OK");
    });
    
    stdin.write("hello");
    

    Author & License

    BSD. See LICENSE for details and copyright information.

    Install

    npm i mock-utf8-stream

    DownloadsWeekly Downloads

    23

    Version

    0.1.1

    License

    BSD

    Last publish

    Collaborators

    • reid