NativeScript/tests/app/main-page.ts

import { Trace, Page } from "@nativescript/core";

import * as tests from "./test-runner";

let executeTests = true;

Trace.enable();
Trace.addCategories(Trace.categories.Test + "," + Trace.categories.Error);

// When debugging
// Trace.setCategories(Trace.categories.concat(
//    Trace.categories.Test,
//    Trace.categories.Navigation,
//    Trace.categories.Transition,
//    Trace.categories.NativeLifecycle,
//    Trace.categories.ViewHierarchy,
//    Trace.categories.VisualTreeEvents
// ));

function runTests() {
    setTimeout(() => tests.runAll(""), 10);
}

export function onNavigatedTo(args) {
    args.object.off(Page.loadedEvent, onNavigatedTo);
    if (executeTests) {
        executeTests = false;
        runTests();
    }
}