1 files changed, 32 insertions, 0 deletions
diff --git a/src/tools/ipv4-range-expander/ipv4-range-expander.e2e.spec.ts b/src/tools/ipv4-range-expander/ipv4-range-expander.e2e.spec.ts
new file mode 100644
index 0000000..ae5188e
--- /dev/null
+++ b/src/tools/ipv4-range-expander/ipv4-range-expander.e2e.spec.ts
@@ -0,0 +1,32 @@
+import { test, expect } from '@playwright/test';
+
+test.describe('Tool - IPv4 range expander', () => {
+  test.beforeEach(async ({ page }) => {
+    await page.goto('/ipv4-range-expander');
+  });
+
+  test('Has correct title', async ({ page }) => {
+    await expect(page).toHaveTitle('IPv4 range expander - IT Tools');
+  });
+
+  test('Calculates correct for valid input', async ({ page }) => {
+    await page.getByPlaceholder('Start IPv4 address...').fill('192.168.1.1');
+    await page.getByPlaceholder('End IPv4 address...').fill('192.168.7.255');
+
+    expect(await page.getByTestId('start-address.old').textContent()).toEqual('192.168.1.1');
+    expect(await page.getByTestId('start-address.new').textContent()).toEqual('192.168.0.0');
+    expect(await page.getByTestId('end-address.old').textContent()).toEqual('192.168.7.255');
+    expect(await page.getByTestId('end-address.new').textContent()).toEqual('192.168.7.255');
+    expect(await page.getByTestId('addresses-in-range.old').textContent()).toEqual('1,791');
+    expect(await page.getByTestId('addresses-in-range.new').textContent()).toEqual('2,048');
+    expect(await page.getByTestId('cidr.old').textContent()).toEqual('');
+    expect(await page.getByTestId('cidr.new').textContent()).toEqual('192.168.0.0/21');
+  });
+
+  test('Hides result for invalid input', async ({ page }) => {
+    await page.getByPlaceholder('Start IPv4 address...').fill('192.168.1.1');
+    await page.getByPlaceholder('End IPv4 address...').fill('192.168.0.255');
+
+    await expect(page.getByTestId('result')).not.toBeVisible();
+  });
+});