Added e2e tests for page.deleted webhook (#15723)

refs: https://github.com/TryGhost/Ghost/issues/15537

- snapshot test created to add confidence to webhook stability and increase overall test coverage.

ghost/core/test/e2e-webhooks/__snapshots__/pages.test.js.snap

@@ -147,6 +147,82 @@ Object {
 }
 `;
 
+exports[`page.* events page.deleted event is triggered 1: [headers] 1`] = `
+Object {
+  "accept-encoding": "gzip, deflate",
+  "content-length": Any<Number>,
+  "content-type": "application/json",
+  "content-version": StringMatching /v\\\\d\\+\\\\\\.\\\\d\\+/,
+  "user-agent": StringMatching /Ghost\\\\/\\\\d\\+\\\\\\.\\\\d\\+\\\\\\.\\\\d\\+\\\\s\\\\\\(https:\\\\/\\\\/github\\.com\\\\/TryGhost\\\\/Ghost\\\\\\)/,
+}
+`;
+
+exports[`page.* events page.deleted event is triggered 2: [body] 1`] = `
+Object {
+  "page": Object {
+    "current": Object {},
+    "previous": Object {
+      "authors": Array [
+        Object {
+          "accessibility": null,
+          "bio": "bio",
+          "comment_notifications": true,
+          "cover_image": null,
+          "created_at": StringMatching /\\\\d\\{4\\}-\\\\d\\{2\\}-\\\\d\\{2\\}T\\\\d\\{2\\}:\\\\d\\{2\\}:\\\\d\\{2\\}\\\\\\.000Z/,
+          "email": "jbloggs@example.com",
+          "facebook": null,
+          "free_member_signup_notification": true,
+          "id": "1",
+          "last_seen": StringMatching /\\\\d\\{4\\}-\\\\d\\{2\\}-\\\\d\\{2\\}T\\\\d\\{2\\}:\\\\d\\{2\\}:\\\\d\\{2\\}\\\\\\.000Z/,
+          "location": "location",
+          "meta_description": null,
+          "meta_title": null,
+          "name": "Joe Bloggs",
+          "paid_subscription_canceled_notification": false,
+          "paid_subscription_started_notification": true,
+          "profile_image": "https://example.com/super_photo.jpg",
+          "roles": Array [
+            Object {
+              "created_at": StringMatching /\\\\d\\{4\\}-\\\\d\\{2\\}-\\\\d\\{2\\}T\\\\d\\{2\\}:\\\\d\\{2\\}:\\\\d\\{2\\}\\\\\\.000Z/,
+              "description": "Blog Owner",
+              "id": StringMatching /\\[a-f0-9\\]\\{24\\}/,
+              "name": "Owner",
+              "updated_at": StringMatching /\\\\d\\{4\\}-\\\\d\\{2\\}-\\\\d\\{2\\}T\\\\d\\{2\\}:\\\\d\\{2\\}:\\\\d\\{2\\}\\\\\\.000Z/,
+            },
+          ],
+          "slug": "joe-bloggs",
+          "status": "active",
+          "tour": null,
+          "twitter": null,
+          "updated_at": StringMatching /\\\\d\\{4\\}-\\\\d\\{2\\}-\\\\d\\{2\\}T\\\\d\\{2\\}:\\\\d\\{2\\}:\\\\d\\{2\\}\\\\\\.000Z/,
+          "url": StringMatching /http:\\\\/\\\\/127\\.0\\.0\\.1:2369\\\\/\\[A-Za-z0-9_-\\]\\+\\\\//,
+          "website": null,
+        },
+      ],
+      "canonical_url": null,
+      "codeinjection_foot": null,
+      "codeinjection_head": null,
+      "comment_id": StringMatching /\\[a-f0-9\\]\\{24\\}/,
+      "created_at": StringMatching /\\\\d\\{4\\}-\\\\d\\{2\\}-\\\\d\\{2\\}T\\\\d\\{2\\}:\\\\d\\{2\\}:\\\\d\\{2\\}\\\\\\.000Z/,
+      "custom_excerpt": null,
+      "custom_template": null,
+      "feature_image": null,
+      "featured": false,
+      "html": null,
+      "id": StringMatching /\\[a-f0-9\\]\\{24\\}/,
+      "mobiledoc": "{\\"version\\":\\"0.3.1\\",\\"ghostVersion\\":\\"4.0\\",\\"markups\\":[],\\"atoms\\":[],\\"cards\\":[],\\"sections\\":[[1,\\"p\\",[[0,[],0,\\"\\"]]]]}",
+      "published_at": StringMatching /\\\\d\\{4\\}-\\\\d\\{2\\}-\\\\d\\{2\\}T\\\\d\\{2\\}:\\\\d\\{2\\}:\\\\d\\{2\\}\\\\\\.000Z/,
+      "slug": "testing-page-deleted-webhook",
+      "status": "published",
+      "title": "testing page.deleted webhook",
+      "updated_at": StringMatching /\\\\d\\{4\\}-\\\\d\\{2\\}-\\\\d\\{2\\}T\\\\d\\{2\\}:\\\\d\\{2\\}:\\\\d\\{2\\}\\\\\\.000Z/,
+      "uuid": StringMatching /\\[a-f0-9\\]\\{8\\}-\\[a-f0-9\\]\\{4\\}-\\[a-f0-9\\]\\{4\\}-\\[a-f0-9\\]\\{4\\}-\\[a-f0-9\\]\\{12\\}/,
+      "visibility": "public",
+    },
+  },
+}
+`;
+
 exports[`page.* events page.edited event is triggered 1: [headers] 1`] = `
 Object {
   "accept-encoding": "gzip, deflate",

ghost/core/test/e2e-webhooks/pages.test.js

@@ -62,6 +62,17 @@ const buildPageSnapshotWithTiers = ({
 };
 
 const buildPreviousPageSnapshotWithTiers = (tiersCount) => {
+    if (tiersCount === 0) {
+        return {
+            id: anyObjectId,
+            uuid: anyUuid,
+            comment_id: anyObjectId,
+            published_at: anyISODateTime,
+            created_at: anyISODateTime,
+            updated_at: anyISODateTime,
+            authors: new Array(1).fill(buildAuthorSnapshot(true))
+        };
+    }
     return {
         tiers: new Array(tiersCount).fill(tierSnapshot),
         updated_at: anyISODateTime
@@ -188,6 +199,50 @@ describe('page.* events', function () {
             });
     });
 
+    it('page.deleted event is triggered', async function () {
+        const webhookURL = 'https://test-webhook-receiver.com/page-deleted/';
+        await webhookMockReceiver.mock(webhookURL);
+        await fixtureManager.insertWebhook({
+            event: 'page.deleted',
+            url: webhookURL
+        });
+
+        const res = await adminAPIAgent
+            .post('pages/')
+            .body({
+                pages: [
+                    {
+                        title: 'testing page.deleted webhook',
+                        status: 'published',
+                        published_at: moment().subtract(6, 'hours').toISOString()
+                    }
+                ]
+            })
+            .expectStatus(201);
+
+        const id = res.body.pages[0].id;
+
+        await adminAPIAgent
+            .delete('pages/' + id)
+            .expectStatus(204)
+            .expectEmptyBody();
+
+        await webhookMockReceiver.receivedRequest();
+
+        webhookMockReceiver
+            .matchHeaderSnapshot({
+                'content-version': anyContentVersion,
+                'content-length': anyNumber,
+                'user-agent': anyGhostAgent
+            })
+            .matchBodySnapshot({
+                page: {
+                    current: {},
+                    previous: buildPreviousPageSnapshotWithTiers(0)
+                }
+            });
+    });
+
     it('page.edited event is triggered', async function () {
         const webhookURL = 'https://test-webhook-receiver.com/page-edited/';
         await webhookMockReceiver.mock(webhookURL);