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feat: add lab5
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‎.github/workflows/lab5.yml‎

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# This workflow will build a golang project
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# For more information see: https://docs.github.com/en/actions/automating-builds-and-tests/building-and-testing-go
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name: lab5
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on:
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push:
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paths:
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- 'lab5/**'
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jobs:
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build:
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runs-on: ubuntu-latest
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steps:
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- uses: actions/checkout@v4
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- uses: actions/setup-go@v4
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with:
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go-version-file: 'lab5/go.mod'
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cache: false
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- name: Build
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working-directory: 'lab5'
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run: |
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pip install -r requirements.txt
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cp "$(go env GOROOT)/misc/wasm/wasm_exec.js" .
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GOOS=js GOARCH=wasm go build -o wasm/lib.wasm wasm/main.go
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- name: Run
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working-directory: 'lab5'
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run: |
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go run server.go &
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python3 validate.py

‎lab5/.gitignore‎

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**.wasm
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wasm_exec.js

‎lab5/index.html‎

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<html>
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<head>
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<meta charset="utf-8" />
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<style>
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body {
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font-family: 'Arial', sans-serif;
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margin: 0;
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padding: 0;
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display: flex;
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align-items: center;
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justify-content: center;
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min-height: 100vh;
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background-color: #f0f0f0;
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}
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.container {
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text-align: center;
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}
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#value {
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padding: 15px;
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font-size: 16px;
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border: none;
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border-bottom: 2px solid #3f51b5;
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outline: none;
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transition: border-bottom 0.3s;
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margin-bottom: 20px;
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background-color: transparent;
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}
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#value:focus {
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border-bottom: 2px solid #303f9f;
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}
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#check {
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display: inline-block;
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padding: 10px 20px;
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font-size: 16px;
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cursor: pointer;
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text-align: center;
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border: none;
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border-radius: 4px;
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box-shadow: 0 2px 2px rgba(0, 0, 0, 0.1);
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transition: background-color 0.3s, box-shadow 0.3s;
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color: #fff;
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background-color: #3f51b5;
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}
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#check:hover {
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background-color: #303f9f;
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box-shadow: 0 4px 4px rgba(0, 0, 0, 0.2);
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}
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#check:active {
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background-color: #222e7a;
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}
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.container>div:nth-child(2) {
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min-height: 1.2rem;
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}
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#answer {
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margin-top: 10px;
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font-size: 18px;
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color: #333;
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}
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</style>
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<script src="wasm_exec.js"></script>
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<script>
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const go = new Go()
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WebAssembly.instantiateStreaming(fetch('wasm/lib.wasm'), go.importObject).then(result => {
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go.run(result.instance)
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})
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</script>
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</head>
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<body>
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<div class="container">
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<div>
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<input type="number" id="value" />
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<button id="check" onclick="CheckPrime()">Check Prime</button>
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</div>
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<div>
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<span id="answer"></span>
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</div>
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</div>
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</body>
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</html>

‎lab5/requirements.txt‎

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selenium==4.15.2

‎lab5/server.go‎

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package main
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import (
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"fmt"
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"log"
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"net/http"
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)
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func main() {
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fmt.Println("Go server is running on http://localhost:8086")
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log.Fatal(http.ListenAndServe(":8086", http.FileServer(http.Dir("."))))
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}

‎lab5/validate.py‎

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import os
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import time
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import urllib.request
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from selenium import webdriver
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from selenium.common.exceptions import TimeoutException
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from selenium.webdriver.common.by import By
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from selenium.webdriver.chrome.service import Service
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from selenium.webdriver.support import expected_conditions as EC
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from selenium.webdriver.support.ui import WebDriverWait
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class text_to_be_changed(object):
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def __init__(self, locator, original_text):
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self.locator = locator
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self.original_text = original_text
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def __call__(self, driver):
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element_text = driver.find_element(*self.locator).text
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return element_text != self.original_text
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def main() -> int:
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PRIME = "It's prime"
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NOTPRIME = "It's not prime"
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test_cases = [
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("1", NOTPRIME),
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("2", PRIME),
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("3", PRIME),
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("977", PRIME),
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("1021", PRIME),
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("7139", NOTPRIME),
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("28669", PRIME),
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("34860283", PRIME),
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("76351879", NOTPRIME),
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("93416783", PRIME),
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("672541787", PRIME),
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("896871567", NOTPRIME),
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("3472666597", PRIME),
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("8632541253", NOTPRIME),
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("9633251477", NOTPRIME),
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("77265818857", PRIME),
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("99999985837", PRIME),
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("99999999997", NOTPRIME),
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("172658105531", PRIME),
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("267714526633", NOTPRIME),
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("201423710699", PRIME),
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("314159265359", PRIME),
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("496635874121", NOTPRIME),
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("588736214479", NOTPRIME),
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("786632547711", NOTPRIME),
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("538941033881", PRIME),
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("6322571574869", NOTPRIME),
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("23674586397841", PRIME),
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("47763354178559", NOTPRIME),
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("99887766554433", NOTPRIME),
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("124475899632119", NOTPRIME),
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("375593357415211", NOTPRIME),
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("923174692024939", PRIME),
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("1000000000000007", NOTPRIME),
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("10000000000000061", PRIME),
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("789663254110256361", NOTPRIME),
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("1056325741526369751", NOTPRIME),
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("1000000000000000003", PRIME),
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("10000000000000000003", NOTPRIME),
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("18446744073709551615", NOTPRIME),
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]
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inp = ""
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if not os.path.exists("wasm_exec.js"):
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print("\033[1;31m[ERROR]\033[0m wasm_exec.js not found!")
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return 1
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if not os.path.exists("wasm/lib.wasm"):
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print("\033[1;31m[ERROR]\033[0m wasm/lib.wasm not found!")
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return 1
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try:
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service = Service()
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options = webdriver.ChromeOptions()
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options.add_argument("--headless=new")
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driver = webdriver.Chrome(service=service, options=options)
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wait = WebDriverWait(driver, 3)
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url = "http://localhost:8086"
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for _ in range(30):
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try:
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code = urllib.request.urlopen(url).getcode()
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if code == 200:
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break
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except Exception as e:
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print(
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"\033[1;36m[INFO]\033[0m Unable to connect to Go server, try again..."
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)
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time.sleep(2)
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else:
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print("\033[1;31m[ERROR]\033[0m Unable to connect to Go server!")
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return 1
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driver.get(url)
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print("\033[1;36m[INFO]\033[0m Start testing!")
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for tc in test_cases:
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input_field = driver.find_element(By.ID, "value")
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input_field.send_keys(tc[0])
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check_button = driver.find_element(By.ID, "check")
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check_button.click()
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inp = tc[0]
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wait.until(text_to_be_changed((By.ID, "answer"), ""))
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answer = driver.find_element(By.ID, "answer")
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if answer.text != tc[1]:
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print(
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'\033[1;31m[ERROR]\033[0m Input: "%s", expected: "%s", got: "%s"'
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% (tc[0], tc[1], answer.text)
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)
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return 1
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driver.refresh()
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return 0
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except TimeoutException as e:
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print('\033[1;31m[ERROR]\033[0m Time limit excceed!! Last input: "%s"' % inp)
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return 1
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except Exception as e:
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print("\033[1;31m[ERROR]\033[0m")
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print(e)
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return 1
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finally:
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driver.quit()
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if __name__ == "__main__":
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status = main()
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if status == 0:
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print("\033[1;32mPASS\033[0m")
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exit(status)

‎lab5/wasm/main.go‎

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package main
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import (
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"fmt"
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"math/big"
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"strconv"
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"syscall/js"
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)
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func CheckPrime(this js.Value, args []js.Value) interface{} {
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// TODO: Check if the number is prime
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}
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func registerCallbacks() {
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// TODO: Register the function CheckPrime
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}
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func main() {
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fmt.Println("Golang main function executed")
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registerCallbacks()
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//need block the main thread forever
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select {}
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}

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