123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596

import { Evt } from "../lib/index.ts";import { assert } from "https://raw.githubusercontent.com/garronej/tsafe/v1.0.0/deno_dist/assert.ts";import { getPromiseAssertionApi } from "../tools/testing/getPromiseAssertionApi.ts";
const { mustResolve, mustStayPending } = getPromiseAssertionApi();
(async () => {
    {
        let stdout= "";
        const sevText = Evt.create("foo");
        sevText.evtChange.toStateless().attach(text => {
            stdout+= text;
        });
        sevText.state = "foo";        sevText.state = " bar";
        assert(stdout === " bar");

    }
    {
        let stdout= "";
        const sevText = Evt.create("foo");
        sevText.evtChangeDiff.attach(({ newState }) => {
            stdout+= newState;
        });
        sevText.state = " bar";
        assert(stdout === " bar");

    }
    {
        let stdout= "";
        const sevText = Evt.create("foo");
        sevText.evtDiff.attach(({ newState }) => {
            stdout+= newState;
        });
        sevText.state = "foo";        sevText.state = " bar";
        assert(stdout === " bar");

    }

    {
        const sevText = Evt.create("");
        const pr1 = mustResolve({            "promise": sevText.waitFor(),            "expectedData": ""        });
        mustStayPending(            sevText.evtDiff.waitFor(({ newState }) => [newState])        );
        mustResolve({            "promise": sevText.evtChange.waitFor(),            "expectedData": ""        });        mustStayPending(sevText.evtChangeDiff.waitFor());
        await pr1;
    }
    console.log("PASS");
})();