1 files changed, 15 insertions, 0 deletions
diff --git a/src/tools/hash-text/hash-text.service.test.ts b/src/tools/hash-text/hash-text.service.test.ts
new file mode 100644
index 0000000..b0e9c79
--- /dev/null
+++ b/src/tools/hash-text/hash-text.service.test.ts
@@ -0,0 +1,15 @@
+import { describe, expect, it } from 'vitest';
+import { convertHexToBin } from './hash-text.service';
+
+describe('hash text', () => {
+  describe('convertHexToBin', () => {
+    it('convert hex to bin', () => {
+      expect(convertHexToBin('')).toEqual('');
+      expect(convertHexToBin('FF')).toEqual('11111111');
+      expect(convertHexToBin('F'.repeat(200))).toEqual('1111'.repeat(200));
+      expect(convertHexToBin('2123006AD00F694CE120')).toEqual(
+        '00100001001000110000000001101010110100000000111101101001010011001110000100100000',
+      );
+    });
+  });
+});