[SDK] Enable JUnit support for unit testing

[ThuF]

Fixes: #5824

[ThuF]

Example Test Suite:

import { test, assertEquals, assertTrue, assertFalse, storeResults } from "@aerokit/sdk/junit";

// Example functions to test
function add(a: number, b: number): number {
    return a + b;
}

function multiply(a: number, b: number): number {
    return a * b;
}

function isPositive(num: number): boolean {
    return num > 0;
}

function validateEmail(email: string): boolean {
    const emailRegex = /^[^\s@]+@[^\s@]+\.[^\s@]+$/;
    return emailRegex.test(email);
}

// Test Suites

// Suite: Basic Math Operations
test("add: should add two positive numbers", () => {
    const result = add(2, 3);
    assertEquals(5, result);
    console.log("✓ Test passed: add(2, 3) = 5");
});

test("add: should add negative numbers", () => {
    const result = add(-5, 3);
    assertEquals(-2, result);
    console.log("✓ Test passed: add(-5, 3) = -2");
});

test("add: should add zero", () => {
    const result = add(0, 5);
    assertEquals(5, result);
    console.log("✓ Test passed: add(0, 5) = 5");
});

test("multiply: should multiply two numbers", () => {
    const result = multiply(4, 5);
    assertEquals(20, result);
    console.log("✓ Test passed: multiply(4, 5) = 20");
});

test("multiply: should handle zero", () => {
    const result = multiply(5, 0);
    assertEquals(5, result);
    console.log("✓ Test passed: multiply(5, 0) = 0");
});

// Suite: Validation Functions
test("isPositive: should return true for positive numbers", () => {
    const result = isPositive(5);
    assertTrue(result);
    console.log("✓ Test passed: isPositive(5) = true");
});

test("isPositive: should return false for negative numbers", () => {
    const result = isPositive(-5);
    assertFalse(result);
    console.log("✓ Test passed: isPositive(-5) = false");
});

test("isPositive: should return false for zero", () => {
    const result = isPositive(0);
    assertFalse(result);
    console.log("✓ Test passed: isPositive(0) = false");
});

test("validateEmail: should accept valid email addresses", () => {
    const validEmails = [
        "user@example.com",
        "john.doe@company.co.uk",
        "test+tag@domain.org"
    ];

    validEmails.forEach(email => {
        const result = validateEmail(email);
        assertTrue(result, `Email ${email} should be valid`);
    });
    console.log("✓ Test passed: all valid emails accepted");
});

test("validateEmail: should reject invalid email addresses", () => {
    const invalidEmails = [
        "userexample.com",
        "user@example",
        "user @example.com",
        "user@.com"
    ];

    invalidEmails.forEach(email => {
        const result = validateEmail(email);
        assertFalse(result, `Email ${email} should be invalid`);
    });
    console.log("✓ Test passed: all invalid emails rejected");
});


storeResults();

Test run result: