/*
    TEST SCRIPT: verify_browser.sesi

    Purpose: Runs automated tests to verify the built-in browser automation module.
    Dependencies: Requires 'test-runner.sesi' for assertion functions.

  Usage:
    node bin/sesi.js -l main/tests/verify_browser.sesi
*/

allow "test-runner" in with {
  assert_equals,
  assert_not_null,
  run_test_suite
}
allow "std/browser" in with {launch}

show "Starting verification tests for Sesi Browser Automation..."

let results = []

// Test 1: Launch browser
let browser = launch({"headless": true})
let res1 = assert_not_null(browser, "Browser launch returns a valid browser object")
push(results, res1)

// Test 2: Create a new page
let page = browser.newPage()
let res2 = assert_not_null(page, "browser.newPage() returns a page object")
push(results, res2)

// Test 3: Navigate and check title
page.goto("https://example.com")
let title = page.title()
let res3 = assert_equals(title, "Example Domain", "page.title() returns correct page title")
push(results, res3)

// Test 4: Get page content
let content = page.content()
let containsTitle = contains(content, "Example Domain")
let res4 = assert_equals(containsTitle, true, "page.content() contains page text")
push(results, res4)

// Test 5: Inner text of an element
let heading = page.inner_text("h1")
let res5 = assert_equals(heading, "Example Domain", "page.inner_text() returns text of h1 element")
push(results, res5)

// Test 6: Attribute of an element
let link_href = page.attribute("a", "href")
let res6 = assert_equals(link_href, "https://iana.org/domains/example", "page.attribute() retrieves href attribute of links")
push(results, res6)

// Test 7: Evaluate JS
let scrollX = page.evaluate("window.scrollX")
let res7 = assert_equals(scrollX, 0, "page.evaluate() executes JS and returns result")
push(results, res7)

// Test 8: Screenshot base64
let screenshot_b64 = page.screenshot()
let is_base64 = len(screenshot_b64) > 100
let res8 = assert_equals(is_base64, true, "page.screenshot() returns a non-empty base64 string")
push(results, res8)

// Test 9: Close page and browser
page.close()
browser.close()
let res9 = assert_equals(true, true, "browser/page clean up executed successfully")
push(results, res9)

// Run the suite
let success = run_test_suite("Sesi Built-in Browser Module", results)

if success {
  show "Browser verification passed."
} else {
  raise_error("TestFailure", "One or more browser verification assertions failed.")
}