✅ Improve tests

Author: AlexV525

packages/agent_dart_base/test/agent/utils/leb128.dart

@@ -24,6 +24,7 @@ void leb128Test() {
       lebEncode(BigInt.from(60000000000000000)).toHex(),
       '808098f4e9b5ca6a',
     );
+    expect(lebEncode('1').toHex(), '01');
 
     expect(lebDecode(BufferPipe<int>(Uint8List.fromList([0]))), BigInt.zero);
     expect(lebDecode(BufferPipe<int>(Uint8List.fromList([1]))), BigInt.one);
@@ -59,6 +60,7 @@ void leb128Test() {
       slebEncode(BigInt.parse('60000000000000000')).toHex(),
       '808098f4e9b5caea00',
     );
+    expect(slebEncode('1').toHex(), '01');
 
     expect(
       slebDecode(BufferPipe<int>(Uint8List.fromList([0x7f]))),

packages/agent_dart_base/test/wallet/signer.dart

@@ -41,8 +41,9 @@ void main() {
     stopwatch.stop();
     final acc22TimePeriod = stopwatch.elapsed;
 
-    expect(acc21TimePeriod < allCurvesDuration, true);
-    expect(acc22TimePeriod < allCurvesDuration, true);
+    print([allCurvesDuration, acc21TimePeriod, acc22TimePeriod]);
+    expect(acc21TimePeriod <= allCurvesDuration, true);
+    expect(acc22TimePeriod <= allCurvesDuration, true);
     expect(acc2.account.identity != null, true);
     expect(acc2.account.ecIdentity != null, true);
     expect(acc21.account.ecIdentity, equals(null));