1 files changed, 59 insertions, 0 deletions
diff --git a/packages/connect/test/orders_channel_message_parsers_test.ts b/packages/connect/test/orders_channel_message_parsers_test.ts
new file mode 100644
index 000000000..4d4a2d23f
--- /dev/null
+++ b/packages/connect/test/orders_channel_message_parsers_test.ts
@@ -0,0 +1,59 @@
+import * as chai from 'chai';
+import * as dirtyChai from 'dirty-chai';
+import 'mocha';
+
+import { ordersChannelMessageParser } from '../src/utils/orders_channel_message_parser';
+
+import { orderResponse } from './fixtures/standard_relayer_api/order/0xabc67323774bdbd24d94f977fa9ac94a50f016026fd13f42990861238897721f';
+import { unknownOrdersChannelMessage } from './fixtures/standard_relayer_api/unknown_orders_channel_message';
+import {
+    malformedUpdateOrdersChannelMessage,
+    updateOrdersChannelMessage,
+} from './fixtures/standard_relayer_api/update_orders_channel_message';
+
+chai.config.includeStack = true;
+chai.use(dirtyChai);
+const expect = chai.expect;
+
+describe('ordersChannelMessageParser', () => {
+    describe('#parser', () => {
+        it('parses update messages', () => {
+            const updateMessage = ordersChannelMessageParser.parse(updateOrdersChannelMessage);
+            expect(updateMessage.type).to.be.equal('update');
+            expect(updateMessage.payload).to.be.deep.equal([orderResponse]);
+        });
+        it('returns unknown message for messages with unsupported types', () => {
+            const unknownMessage = ordersChannelMessageParser.parse(unknownOrdersChannelMessage);
+            expect(unknownMessage.type).to.be.equal('unknown');
+            expect(unknownMessage.payload).to.be.undefined();
+        });
+        it('throws when message does not include a type', () => {
+            const typelessMessage = `{
+                "channel": "orders",
+                "requestId": "4d8efcee-adde-4475-9601-f0b30962ca2b",
+                "payload": []
+            }`;
+            const badCall = () => ordersChannelMessageParser.parse(typelessMessage);
+            expect(badCall).throws(`Message is missing a type parameter: ${typelessMessage}`);
+        });
+        it('throws when type is not a string', () => {
+            const messageWithBadType = `{
+                "type": 1,
+                "channel": "orders",
+                "requestId": "4d8efcee-adde-4475-9601-f0b30962ca2b",
+                "payload": []
+            }`;
+            const badCall = () => ordersChannelMessageParser.parse(messageWithBadType);
+            expect(badCall).throws('Expected type to be of type string, encountered: 1');
+        });
+        it('throws when update message has malformed payload', () => {
+            const badCall = () => ordersChannelMessageParser.parse(malformedUpdateOrdersChannelMessage);
+            expect(badCall).throws(/^Expected message to conform to schema/);
+        });
+        it('throws when input message is not valid JSON', () => {
+            const nonJsonString = 'h93b{sdfs9fsd f';
+            const badCall = () => ordersChannelMessageParser.parse(nonJsonString);
+            expect(badCall).throws('Unexpected token h in JSON at position 0');
+        });
+    });
+});