Merge pull request #11 from muzzammilshahid/helpers-tests

Add tests for helpers

test/helpers_test.dart

@@ -0,0 +1,82 @@
+import "dart:typed_data";
+
+import "package:test/test.dart";
+import "package:wampproto/messages.dart";
+import "package:wampproto/serializers.dart";
+
+import "package:xconn/src/helpers.dart";
+
+class TestSerializer implements Serializer {
+  @override
+  Uint8List serialize(final Message message) {
+    return Uint8List.fromList("".codeUnits);
+  }
+
+  @override
+  Message deserialize(final Object message) {
+    return Hello("realm", {}, "", []);
+  }
+}
+
+void main() {
+  test("getSubProtocol", () {
+    // with json Serializer
+    var jsonProtocol = getSubProtocol(JSONSerializer());
+    expect(jsonProtocol, jsonSubProtocol);
+
+    // with cbor Serializer
+    var cborProtocol = getSubProtocol(CBORSerializer());
+    expect(cborProtocol, cborSubProtocol);
+
+    // with msgpack Serializer
+    var msgpackProtocol = getSubProtocol(MsgPackSerializer());
+    expect(msgpackProtocol, msgpackSubProtocol);
+
+    // with invalid Serializer
+    expect(() => getSubProtocol(TestSerializer()), throwsArgumentError);
+  });
+
+  test("getSerializer", () {
+    // with json subProtocol
+    var jsonSerializer = getSerializer(jsonSubProtocol);
+    expect(jsonSerializer, isA<JSONSerializer>());
+
+    // null should also return jsonSerializer
+    var jsonSerializer1 = getSerializer(null);
+    expect(jsonSerializer1, isA<JSONSerializer>());
+
+    // with cbor subProtocol
+    var cborSerializer = getSerializer(cborSubProtocol);
+    expect(cborSerializer, isA<CBORSerializer>());
+
+    // with msgpack subProtocol
+    var msgpackSerializer = getSerializer(msgpackSubProtocol);
+    expect(msgpackSerializer, isA<MsgPackSerializer>());
+
+    // with invalid subProtocol
+    expect(() => getSerializer("abc"), throwsException);
+  });
+
+  test("wampErrorString", () {
+    // with no args or kwargs
+    final error = Error(Register.id, 1, "wamp.error.no_such_procedure");
+    var errString = wampErrorString(error);
+    expect(errString, "wamp.error.no_such_procedure");
+
+    // with args only
+    final errorArgs = Error(Register.id, 1, "wamp.error.no_such_procedure", args: [1, "two"]);
+    var errArgsString = wampErrorString(errorArgs);
+    expect(errArgsString, "wamp.error.no_such_procedure: 1, two");
+
+    // with kwargs only
+    final errorKwArgs = Error(Register.id, 1, "wamp.error.no_such_procedure", kwargs: {"key": "value"});
+    var errKwArgsString = wampErrorString(errorKwArgs);
+    expect(errKwArgsString, "wamp.error.no_such_procedure: key=value");
+
+    // with args and kwargs
+    final errorArgsKwArgs =
+        Error(Register.id, 1, "wamp.error.no_such_procedure", args: [1, "two"], kwargs: {"key": "value"});
+    var errArgsKwArgsString = wampErrorString(errorArgsKwArgs);
+    expect(errArgsKwArgsString, "wamp.error.no_such_procedure: 1, two: key=value");
+  });
+}