test: start setExpirationStartTimestamp

tested different modes

ts/test/session/unit/disappearing/DisappearingMessage_test.ts

@@ -1,6 +1,11 @@
 import { expect } from 'chai';
 import Sinon from 'sinon';
 import { stubWindowLog } from '../../../test-utils/utils';
+import {
+  DisappearingMessageConversationModeType,
+  setExpirationStartTimestamp,
+} from '../../../../util/expiringMessages';
+import { isValidUnixTimestamp } from '../../../../session/utils/Timestamps';
 
 describe('Disappearing Messages', () => {
   stubWindowLog();
@@ -13,30 +18,70 @@ describe('Disappearing Messages', () => {
     Sinon.restore();
   });
 
-  // ts/util/expiringMessages.ts
-  it('setExpirationStartTimestamp', async () => {
-    expect('TODO').to.be.eq('TODO');
-  });
+  describe('expiringMessages.ts', () => {
+    describe('setExpirationStartTimestamp', () => {
+      it('returns a valid unix timestamp for deleteAfterRead', async () => {
+        const mode: DisappearingMessageConversationModeType = 'deleteAfterRead';
+        const expirationStartTimestamp = setExpirationStartTimestamp(mode);
 
-  it('changeToDisappearingMessageType', async () => {
-    expect('TODO').to.be.eq('TODO');
-  });
+        expect(expirationStartTimestamp, 'it should return a number').to.be.is.a('number');
+        expect(
+          isValidUnixTimestamp(expirationStartTimestamp!),
+          'it should be a valid unix timestamp'
+        ).to.be.true;
+      });
 
-  it('changeToDisappearingConversationMode', async () => {
-    expect('TODO').to.be.eq('TODO');
-  });
+      it('returns a valid unix timestamp for deleteAfterSend', async () => {
+        const mode: DisappearingMessageConversationModeType = 'deleteAfterSend';
+        const expirationStartTimestamp = setExpirationStartTimestamp(mode);
+
+        expect(expirationStartTimestamp, 'it should return a number').to.be.is.a('number');
+        expect(
+          isValidUnixTimestamp(expirationStartTimestamp!),
+          'it should be a valid unix timestamp'
+        ).to.be.true;
+      });
+
+      it('returns undefined when disappearing messages is off', async () => {
+        const mode: DisappearingMessageConversationModeType = 'off';
+        const expirationStartTimestamp = setExpirationStartTimestamp(mode);
+
+        expect(expirationStartTimestamp, 'it should return undefined').to.be.undefined;
+      });
+
+      // TODO Test with timestamp argument
+      // Timestamp is bigger
+      // Timestamp is smaller
+      // Timestamp is the equal
+      // Timestamp is invalid
+    });
+
+    it('changeToDisappearingMessageType', async () => {
+      expect('TODO').to.be.eq('TODO');
+    });
+
+    it('changeToDisappearingConversationMode', async () => {
+      expect('TODO').to.be.eq('TODO');
+    });
 
-  it('checkForExpireUpdateInContentMessage', async () => {
-    expect('TODO').to.be.eq('TODO');
+    it('checkForExpireUpdateInContentMessage', async () => {
+      expect('TODO').to.be.eq('TODO');
+    });
   });
 
-  // ts/models/conversation.ts
-  it('updateExpireTimer', async () => {
-    expect('TODO').to.be.eq('TODO');
+  describe('conversation.ts', () => {
+    describe('updateExpireTimer', () => {
+      it('TODO', async () => {
+        expect('TODO').to.be.eq('TODO');
+      });
+    });
   });
 
-  // ts/models/message.ts
-  it('isExpirationTimerUpdate', async () => {
-    expect('TODO').to.be.eq('TODO');
+  describe('message.ts', () => {
+    describe('isExpirationTimerUpdate', () => {
+      it('TODO', async () => {
+        expect('TODO').to.be.eq('TODO');
+      });
+    });
   });
 });