feat: Add coverage for:

* User defined number of bytes
* Not found element

tests/bloom.test.ts

@@ -1,5 +1,6 @@
 import { expect } from 'chai'
 import { Bloom } from '../src'
+import { Buffer } from 'buffer'
 
 describe('bloom', () => {
     it('estimate k', () => {
@@ -11,18 +12,33 @@ describe('bloom', () => {
         expect(Bloom.estimateK(500)).equal(3)
     })
     it('bloom add', () => {
-        const b = new Bloom(14)
-        b.add(Buffer.from('hello world', 'utf8'))
-        expect(b.bits.toString('hex')).equal('00000000000000000000000000000000000000000000000000040000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001000000000004000000000000000000040000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000100000000000000001000000000000020000000000000000000000000008000000000000000000000000000000080000000100000000000000000000040020000000000080000000000000000000080000000000000000000000000')
+        // Bloom filter with standard number of bites (definde in Bloom class)
+        const bloomWithStandardNumberOfBites = new Bloom(14)
+
+        // Bloom filter with user defined number of bites (2048 / 8 = 256)
+        const bloomWithUserDefinedNumberOfBites = new Bloom(14, Buffer.alloc(Bloom.BITS_LENGTH / 8))
+
+        bloomWithStandardNumberOfBites.add(Buffer.from('hello world', 'utf8'))
+        bloomWithUserDefinedNumberOfBites.add(Buffer.from('hello world', 'utf8'))
+
+        // Expect the same result because the number of bites is the same and the same data was added
+        expect(bloomWithStandardNumberOfBites.bits.toString('hex')).equal('00000000000000000000000000000000000000000000000000040000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001000000000004000000000000000000040000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000100000000000000001000000000000020000000000000000000000000008000000000000000000000000000000080000000100000000000000000000040020000000000080000000000000000000080000000000000000000000000')
+        expect(bloomWithUserDefinedNumberOfBites.bits.toString('hex')).equal('00000000000000000000000000000000000000000000000000040000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001000000000004000000000000000000040000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000100000000000000001000000000000020000000000000000000000000008000000000000000000000000000000080000000100000000000000000000040020000000000080000000000000000000080000000000000000000000000')
+
     })
     it('bloom test', () => {
+        // Initialize bloom filter with 14 hash functions and add number from 0 to 99
         const b = new Bloom(14)
         for (let i = 0; i < 100; i++) {
             b.add(Buffer.from(i + '', 'utf8'))
         }
 
+        // Positive case (number from 0 to 99 must be present in the bloom filter)
         for (let i = 0; i < 100; i++) {
             expect(b.test(Buffer.from(i + '', 'utf8'))).equal(true)
         }
+
+        // Negative case (number from 100 must not be present in the bloom filter)
+        expect(b.test(Buffer.from('100', 'utf8'))).equal(false)
     })
 })