Merge pull request #86 from ahrefs/yasu/update-tests

Update tests

Author: yasunariw

test/dune

@@ -1,6 +1,6 @@
 (executable
  (name test)
- (libraries lib)
+ (libraries lib base base.caml devkit lwt.unix stdio yojson)
  (preprocess
   (pps lwt_ppx)))
 

test/slack_payloads.expected

@@ -463,7 +463,7 @@ will notify #longest-a1
 }
 ===== file ../mock_payloads/status.cancelled_test.json =====
 ===== file ../mock_payloads/status.failure_test.json =====
-will notify #all-push-events
+will notify #default
 {
   "attachments": [
     {
@@ -487,7 +487,7 @@ will notify #all-push-events
 ===== file ../mock_payloads/status.pending_test.json =====
 ===== file ../mock_payloads/status.state_hide_success_test.json =====
 ===== file ../mock_payloads/status.success_public_repo_no_buildkite.json =====
-will notify #all-push-events
+will notify #default
 {
   "attachments": [
     {
@@ -507,7 +507,7 @@ will notify #all-push-events
   ]
 }
 ===== file ../mock_payloads/status.success_test.json =====
-will notify #all-push-events
+will notify #default
 {
   "attachments": [
     {