add unit tests to app/utils/permalink (#8141)

app/utils/permalink/index.test.ts

@@ -0,0 +1,84 @@
+// Copyright (c) 2015-present Mattermost, Inc. All Rights Reserved.
+// See LICENSE.txt for license information.
+
+import {Keyboard, Platform} from 'react-native';
+import {OptionsModalPresentationStyle} from 'react-native-navigation';
+
+import {dismissAllModals, showModalOverCurrentContext} from '@screens/navigation';
+
+import {displayPermalink, closePermalink} from '.';
+
+jest.mock('@screens/navigation', () => ({
+    dismissAllModals: jest.fn(),
+    showModalOverCurrentContext: jest.fn(),
+}));
+
+describe('permalinkUtils', () => {
+    const originalSelect = Platform.select;
+
+    beforeAll(() => {
+        Platform.select = ({android, ios, default: dft}: any) => {
+            if (Platform.OS === 'android' && android) {
+                return android;
+            } else if (Platform.OS === 'ios' && ios) {
+                return ios;
+            }
+
+            return dft;
+        };
+    });
+
+    afterAll(() => {
+        Platform.select = originalSelect;
+    });
+
+    afterEach(() => {
+        jest.clearAllMocks();
+    });
+
+    describe('displayPermalink', () => {
+        it('should dismiss keyboard and show permalink modal', async () => {
+            const dismiss = jest.spyOn(Keyboard, 'dismiss');
+            await displayPermalink('teamName', 'postId');
+            expect(dismiss).toHaveBeenCalled();
+            expect(showModalOverCurrentContext).toHaveBeenCalledWith(
+                'Permalink',
+                {isPermalink: true, teamName: 'teamName', postId: 'postId'},
+                {
+                    modalPresentationStyle: OptionsModalPresentationStyle.overFullScreen,
+                    layout: {
+                        componentBackgroundColor: 'rgba(0,0,0,0.2)',
+                    },
+                },
+            );
+        });
+
+        it('should dismiss all modals if showingPermalink is true', async () => {
+            // Simulate showingPermalink being true
+            await displayPermalink('teamName', 'postId');
+            await displayPermalink('teamName', 'postId');
+            expect(dismissAllModals).toHaveBeenCalled();
+        });
+
+        it('should handle platform specific options correctly', async () => {
+            await displayPermalink('teamName', 'postId');
+            expect(showModalOverCurrentContext).toHaveBeenCalledWith(
+                'Permalink',
+                {isPermalink: true, teamName: 'teamName', postId: 'postId'},
+                {
+                    modalPresentationStyle: OptionsModalPresentationStyle.overFullScreen,
+                    layout: {
+                        componentBackgroundColor: 'rgba(0,0,0,0.2)',
+                    },
+                },
+            );
+        });
+    });
+
+    describe('closePermalink', () => {
+        it('should set showingPermalink to false', () => {
+            const showingPermalink = closePermalink();
+            expect(showingPermalink).toBe(false);
+        });
+    });
+});

app/utils/permalink/index.ts

@@ -39,4 +39,5 @@ export const displayPermalink = async (teamName: string, postId: string, openAsP
 
 export const closePermalink = () => {
     showingPermalink = false;
+    return showingPermalink;
 };