Some code cleanup, add jest coverage and begin using it for utility functions

resources/scripts/lib/formatters.spec.ts

@@ -0,0 +1,56 @@
+import { bytesToString, ip, mbToBytes } from '@/lib/formatters';
+
+describe('@/lib/formatters.ts', function () {
+    describe('mbToBytes()', function () {
+        it('should convert from MB to Bytes', function () {
+            expect(mbToBytes(1)).toBe(1_000_000);
+            expect(mbToBytes(0)).toBe(0);
+            expect(mbToBytes(0.1)).toBe(100_000);
+            expect(mbToBytes(0.001)).toBe(1000);
+            expect(mbToBytes(1024)).toBe(1_024_000_000);
+        });
+    });
+
+    describe('bytesToString()', function () {
+        it.each([
+            [ 0, '0 Bytes' ],
+            [ 0.5, '0 Bytes' ],
+            [ 0.9, '0 Bytes' ],
+            [ 100, '100 Bytes' ],
+            [ 100.25, '100.25 Bytes' ],
+            [ 100.998, '101 Bytes' ],
+            [ 512, '512 Bytes' ],
+            [ 1000, '1 KB' ],
+            [ 1024, '1.02 KB' ],
+            [ 5068, '5.07 KB' ],
+            [ 10_000, '10 KB' ],
+            [ 11_864, '11.86 KB' ],
+            [ 1_000_000, '1 MB' ],
+            [ 1_356_000, '1.36 MB' ],
+            [ 1_024_000, '1.02 MB' ],
+            [ 1_000_000_000, '1 GB' ],
+            [ 1_024_000_000, '1.02 GB' ],
+            [ 1_678_342_000, '1.68 GB' ],
+            [ 1_000_000_000_000, '1 TB' ],
+        ])('should format %d bytes as "%s"', function (input, output) {
+            expect(bytesToString(input)).toBe(output);
+        });
+    });
+
+    describe('ip()', function () {
+        it('should format an IPv4 address', function () {
+            expect(ip('127.0.0.1')).toBe('127.0.0.1');
+        });
+
+        it('should format an IPv6 address', function () {
+            expect(ip(':::1')).toBe('[:::1]');
+            expect(ip('2001:db8::')).toBe('[2001:db8::]');
+        });
+
+        it('should handle random inputs', function () {
+            expect(ip('1')).toBe('1');
+            expect(ip('foobar')).toBe('foobar');
+            expect(ip('127.0.0.1:25565')).toBe('[127.0.0.1:25565]');
+        });
+    });
+});