twonly-app-dependencies/hashlib/test/core/block_hash_test.dart
2025-12-07 16:10:41 +01:00

102 lines
2.6 KiB
Dart

// Copyright (c) 2023, Sudipto Chandra
// All rights reserved. Check LICENSE file for details.
import 'dart:typed_data';
import 'package:test/test.dart';
import 'package:hashlib/hashlib.dart';
// Concrete implementation for testing purposes
class TestBlockHashSink extends BlockHashSink {
TestBlockHashSink(super.blockLength, [int? bufferLength])
: super(bufferLength: bufferLength);
@override
int hashLength = 8;
@override
void $update(List<int> block, [int offset = 0, bool last = false]) {
//
}
@override
Uint8List $finalize() {
return buffer;
}
}
void main() {
group('BlockHashSink', () {
test('Invalid block size', () {
expect(
() => TestBlockHashSink(0),
throwsA(isA<AssertionError>()),
);
expect(
() => TestBlockHashSink(-1),
throwsA(isA<AssertionError>()),
);
expect(
() => TestBlockHashSink(-10),
throwsA(isA<AssertionError>()),
);
});
test('Invalid buffer size', () {
TestBlockHashSink(1, 0);
expect(
() => TestBlockHashSink(10, -1),
throwsA(isA<AssertionError>()),
);
expect(
() => TestBlockHashSink(10, -100),
throwsA(isA<AssertionError>()),
);
});
test('Initial state', () {
final sink = TestBlockHashSink(16);
expect(sink.closed, isFalse);
expect(sink.messageLength, equals(0));
expect(sink.pos, equals(0));
});
test('Reset method', () {
final sink = TestBlockHashSink(16);
sink.add([1, 2, 3]);
sink.reset();
expect(sink.closed, isFalse);
expect(sink.messageLength, equals(0));
expect(sink.pos, equals(0));
});
test('Add and process data', () {
final sink = TestBlockHashSink(16);
sink.add([1, 2, 3, 4, 5]);
expect(sink.messageLength, equals(5));
expect(sink.pos, equals(5));
});
test('Digest after close', () {
final sink = TestBlockHashSink(16);
sink.add([1, 2, 3, 4, 5]);
final digest = sink.digest();
expect(sink.closed, isTrue);
expect(digest.bytes.isNotEmpty, isTrue);
});
test('Throws error if adding data after close', () {
final sink = TestBlockHashSink(16);
sink.add([1, 2, 3, 4, 5]);
sink.close();
expect(() => sink.add([6, 7, 8]), throwsA(isA<StateError>()));
});
test('Buffer processing', () {
final sink = TestBlockHashSink(16);
final data = List<int>.filled(32, 1); // Two full blocks
sink.add(data);
expect(sink.messageLength, equals(32));
expect(sink.pos, equals(0)); // Should be 0 after processing full blocks
});
});
}