chore: write tests

add extra test case for uppercase on `Bit.ly`

Author: seaerchin

package-lock.json

@@ -9,6 +9,11 @@ describe('Test whiteliste check', () => {
 })
 
 describe('Test blacklist check', () => {
+  test('example GooGle.com url is not blacklisted', () => {
+    const url = 'https://www.GooGle.com'
+    expect(validation.isBlacklisted(url)).toBe(false)
+  })
+
   test('localstack url is not blacklisted', () => {
     const url = 'http://localhost:4566'
     expect(validation.isBlacklisted(url)).toBe(false)
@@ -18,6 +23,11 @@ describe('Test blacklist check', () => {
     const url = 'https://bit.ly/abc'
     expect(validation.isBlacklisted(url)).toBe(true)
   })
+
+  test('example Bit.Ly url is also blacklisted', () => {
+    const url = 'https://Bit.Ly/abc'
+    expect(validation.isBlacklisted(url)).toBe(true)
+  })
 })
 
 describe('Test https check', () => {