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redis_protocol_transformer_tests.dart
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redis_protocol_transformer_tests.dart
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library redis_protocol_transformer_tests;
import 'dart:async';
import 'dart:convert';
import 'package:test/test.dart';
import 'package:mockito/mockito.dart';
import 'package:redis_client/redis_protocol_transformer.dart';
import 'package:redis_client/redis_client.dart';
class MockSink extends Mock implements EventSink<RedisReply> {
bool connected = true;
MockSink();
close() {}
addError(errorEvent, [stackTrace]) {}
List<RedisReply> replies = <RedisReply>[ ];
void add(RedisReply reply) {
replies.add(reply);
}
}
main() {
group("RedisProtocolTransformer:", () {
group("Exceptions", () {
test("should all be able to be instantiated", () {
// Had a problem with that at the beginning. Just making sure.
new InvalidRedisResponseError("test");
new UnexpectedRedisClosureError("test");
});
});
group("OneLineReplies", () {
test("should properly return RedisReplies of all kinds", () {
var sink = new MockSink();
var redisConnection = new RedisStreamTransformerHandler();
redisConnection.handleData(UTF8.encode("+Status message\r\n"), sink);
expect(sink.replies.length, equals(1));
expect(sink.replies.last.runtimeType, equals(StatusReply));
StatusReply tested1 = sink.replies.last;
expect(tested1.status, equals("Status message"));
redisConnection.handleData(UTF8.encode("-Error message\r\n"), sink);
expect(sink.replies.length, equals(2));
expect(sink.replies.last.runtimeType, equals(ErrorReply));
ErrorReply tested2 = sink.replies.last;
expect(tested2.error, equals("Error message"));
redisConnection.handleData(UTF8.encode(":12345\r\n"), sink);
expect(sink.replies.length, equals(3));
expect(sink.replies.last.runtimeType, equals(IntegerReply));
IntegerReply tested3 = sink.replies.last;
expect(tested3.integer, equals(12345));
});
test("should properly handle it if only the symbol is passed", () {
var sink = new MockSink();
var redisConnection = new RedisStreamTransformerHandler();
redisConnection.handleData(UTF8.encode("+"), sink);
expect(sink.replies.length, equals(0));
redisConnection.handleData(UTF8.encode("Hi there\r\n"), sink);
expect(sink.replies.length, equals(1));
expect(sink.replies[0].runtimeType, equals(StatusReply));
StatusReply testedStatus = sink.replies[0];
expect(testedStatus.status, equals("Hi there"));
});
test("should properly handle it if all data is passed at once", () {
var sink = new MockSink();
var redisConnection = new RedisStreamTransformerHandler();
redisConnection.handleData(UTF8.encode("+Status message\r\n:132\r\n-Error message\r\n"), sink);
expect(sink.replies.length, equals(3));
expect(sink.replies[0].runtimeType, equals(StatusReply));
expect(sink.replies[1].runtimeType, equals(IntegerReply));
expect(sink.replies[2].runtimeType, equals(ErrorReply));
StatusReply testedStatus = sink.replies[0];
IntegerReply testedInteger = sink.replies[1];
ErrorReply testedError = sink.replies[2];
expect(testedStatus.status, equals("Status message"));
expect(testedInteger.integer, equals(132));
expect(testedError.error, equals("Error message"));
});
test("should properly handle chunked data", () {
var sink = new MockSink();
var redisConnection = new RedisStreamTransformerHandler();
redisConnection.handleData(UTF8.encode("+Status m"), sink);
expect(sink.replies.length, equals(0));
redisConnection.handleData(UTF8.encode("essage\r"), sink);
// Shouldn't be handled yet because of the missing \n
expect(sink.replies.length, equals(0));
redisConnection.handleData(UTF8.encode("\n:1234\r\n-Start of err"), sink);
// Should have handled the status and the integer
expect(sink.replies.length, equals(2));
redisConnection.handleData(UTF8.encode("or end\r\n"), sink);
expect(sink.replies.length, equals(3));
expect(sink.replies[0].runtimeType, equals(StatusReply));
expect(sink.replies[1].runtimeType, equals(IntegerReply));
expect(sink.replies[2].runtimeType, equals(ErrorReply));
StatusReply testedStatus = sink.replies[0];
IntegerReply testedInteger = sink.replies[1];
ErrorReply testedError = sink.replies[2];
expect(testedStatus.status, equals("Status message"));
expect(testedInteger.integer, equals(1234));
expect(testedError.error, equals("Start of error end"));
});
});
group("BulkReplies", () {
test("should properly return single bulk replies", () {
var sink = new MockSink();
var redisConnection = new RedisStreamTransformerHandler();
redisConnection.handleData(UTF8.encode("\$6\r\nfoobar\r\n"), sink);
expect(sink.replies.length, equals(1));
expect(sink.replies.first.runtimeType, equals(BulkReply));
BulkReply tested1 = sink.replies.first;
expect(tested1.bytes, equals("foobar".codeUnits));
expect(tested1.string, equals("foobar"));
});
test("should properly handle multiple bulk replies in one data chunk", () {
var sink = new MockSink();
var redisConnection = new RedisStreamTransformerHandler();
redisConnection.handleData(UTF8.encode("\$6\r\nfoobar\r\n\$8\r\nfoobars2\r\n"), sink);
expect(sink.replies.length, equals(2));
expect(sink.replies.first.runtimeType, equals(BulkReply));
expect(sink.replies.last.runtimeType, equals(BulkReply));
BulkReply tested1 = sink.replies.first;
BulkReply tested2 = sink.replies.last;
expect(tested1.string, equals("foobar"));
expect(tested2.string, equals("foobars2"));
});
test("should properly handle null replies", () {
var sink = new MockSink();
var redisConnection = new RedisStreamTransformerHandler();
redisConnection.handleData(UTF8.encode("\$-"), sink);
redisConnection.handleData(UTF8.encode("1\r"), sink);
expect(sink.replies.length, equals(0));
redisConnection.handleData(UTF8.encode("\n"), sink);
expect(sink.replies.length, equals(1));
BulkReply reply = sink.replies.first;
expect(reply.string, equals(null));
expect(reply.bytes, equals(null));
});
test("should properly handle multiple chopped data chunks", () {
var sink = new MockSink();
var redisConnection = new RedisStreamTransformerHandler();
redisConnection.handleData(UTF8.encode("\$6\r\nfoo"), sink);
expect(sink.replies.length, equals(0));
redisConnection.handleData(UTF8.encode("bar\r"), sink);
expect(sink.replies.length, equals(0));
redisConnection.handleData(UTF8.encode("\n\$4\r\ntest\r\n\$"), sink);
expect(sink.replies.length, equals(2));
redisConnection.handleData(UTF8.encode("3\r\nend\r\n\$1"), sink);
expect(sink.replies.length, equals(3));
redisConnection.handleData(UTF8.encode("1\r\nabcdefghijk\r\n"), sink);
expect(sink.replies.length, equals(4));
expect(sink.replies[0].runtimeType, equals(BulkReply));
expect(sink.replies[1].runtimeType, equals(BulkReply));
expect(sink.replies[2].runtimeType, equals(BulkReply));
expect(sink.replies[3].runtimeType, equals(BulkReply));
BulkReply tested1 = sink.replies[0];
BulkReply tested2 = sink.replies[1];
BulkReply tested3 = sink.replies[2];
BulkReply tested4 = sink.replies[3];
expect(tested1.string, equals("foobar"));
expect(tested2.string, equals("test"));
expect(tested3.string, equals("end"));
expect(tested4.string, equals("abcdefghijk"));
});
});
group("Mixed replies", () {
test("should properly be handled (one line and bulk replies together)", () {
var sink = new MockSink();
var redisConnection = new RedisStreamTransformerHandler();
redisConnection.handleData(UTF8.encode("\$6\r\nfoo"), sink);
redisConnection.handleData(UTF8.encode("bar\r\n+Mess"), sink);
redisConnection.handleData(UTF8.encode("age"), sink);
redisConnection.handleData(UTF8.encode("\r\n-Error message\r\n:12345\r"), sink);
redisConnection.handleData(UTF8.encode("\n"), sink);
expect(sink.replies.length, equals(4));
BulkReply tested1 = sink.replies[0];
StatusReply tested2 = sink.replies[1];
ErrorReply tested3 = sink.replies[2];
IntegerReply tested4 = sink.replies[3];
expect(tested1.string, equals("foobar"));
expect(tested2.status, equals("Message"));
expect(tested3.error, equals("Error message"));
expect(tested4.integer, equals(12345));
});
});
group("MultiBulkReplies", () {
test("should properly handle one MultiBulkReply with mixed Replies.", () {
var sink = new MockSink();
var redisConnection = new RedisStreamTransformerHandler();
redisConnection.handleData(UTF8.encode("\*4\r\n:5\r"), sink);
redisConnection.handleData(UTF8.encode("\n-Error\r\n+Status\r\n\$6\r"), sink);
redisConnection.handleData(UTF8.encode("\nfoobar"), sink);
expect(sink.replies.length, equals(0));
redisConnection.handleData(UTF8.encode("\r\n"), sink);
expect(sink.replies.length, equals(1));
MultiBulkReply mbr = sink.replies.last;
expect(mbr.replies.length, equals(4));
expect(mbr.replies[0].runtimeType, equals(IntegerReply));
expect(mbr.replies[1].runtimeType, equals(ErrorReply));
expect(mbr.replies[2].runtimeType, equals(StatusReply));
expect(mbr.replies[3].runtimeType, equals(BulkReply));
IntegerReply tested1 = mbr.replies[0];
ErrorReply tested2 = mbr.replies[1];
StatusReply tested3 = mbr.replies[2];
BulkReply tested4 = mbr.replies[3];
expect(tested1.integer, equals(5));
expect(tested2.error, "Error");
expect(tested3.status, "Status");
expect(tested4.string, "foobar");
});
test("should handle multi bulk replies with 0 bulk replies", () {
var sink = new MockSink();
var redisConnection = new RedisStreamTransformerHandler();
redisConnection.handleData(UTF8.encode("\*"), sink);
expect(sink.replies.length, equals(0));
redisConnection.handleData(UTF8.encode("0\r"), sink);
expect(sink.replies.length, equals(0));
redisConnection.handleData(UTF8.encode("\n"), sink);
expect(sink.replies.length, equals(1));
MultiBulkReply test = sink.replies.first;
expect(test.replies.length, equals(0));
});
test("should properly handle consecutive MultiBulkReplys in single packet", () {
var sink = new MockSink();
var redisConnection = new RedisStreamTransformerHandler();
redisConnection.handleData(UTF8.encode("\*2\r\n:5\r\n:6\r\n\*2\r\n:8\r\n:9\r\n"), sink);
expect(sink.replies, hasLength(2));
MultiBulkReply mbr1 = sink.replies[0];
expect(mbr1.replies, hasLength(2));
expect(mbr1.replies[0], new isInstanceOf<IntegerReply>());
expect((mbr1.replies[0] as IntegerReply).integer, equals(5));
MultiBulkReply mbr2 = sink.replies[1];
expect(mbr2.replies, hasLength(2));
expect(mbr2.replies[0], new isInstanceOf<IntegerReply>());
expect((mbr2.replies[0] as IntegerReply).integer, equals(8));
});
});
group("UTF8", () {
test("should properly be handled in bulk and one line replies", () {
var sink = new MockSink();
var redisConnection = new RedisStreamTransformerHandler();
redisConnection.handleData(UTF8.encode("\$9\r\nfo¢b€r\r\n"), sink);
BulkReply tested1 = sink.replies[0];
expect(tested1.string, equals("fo¢b€r"));
});
});
});
}