Add test for negative reimbursable expense PAY badge

Co-authored-by: Situ Chandra Shil <situchan@users.noreply.github.com>

Author: MelvinBot

tests/actions/IOUTest/ReportWorkflowTest.ts

@@ -3779,6 +3779,64 @@ describe('actions/IOU/ReportWorkflow', () => {
             expect(result).toBe(CONST.REPORT.ACTION_BADGE.PAY);
         });
 
+        it('should return PAY badge for negative reimbursable expense via pay-elsewhere path', async () => {
+            const iouReportID = '1600';
+            const chatReportID = '1601';
+            const policyID = '1602';
+
+            const fakePolicy: Policy = {
+                ...createRandomPolicy(Number(policyID)),
+                id: policyID,
+                type: CONST.POLICY.TYPE.TEAM,
+                approvalMode: CONST.POLICY.APPROVAL_MODE.BASIC,
+                role: CONST.POLICY.ROLE.ADMIN,
+                reimbursementChoice: CONST.POLICY.REIMBURSEMENT_CHOICES.REIMBURSEMENT_MANUAL,
+            };
+
+            const fakeChatReport: Report = {
+                ...createRandomReport(Number(chatReportID), CONST.REPORT.CHAT_TYPE.POLICY_EXPENSE_CHAT),
+                reportID: chatReportID,
+                policyID,
+            };
+
+            // Negative reimbursable expense (credit): total is positive on expense reports,
+            // which flips to negative reimbursableSpend in getMoneyRequestSpendBreakdown.
+            // canBePaidNow returns false (negative reimbursableSpend), but canBePaidElsewhere
+            // returns true via canShowMarkedAsPaidForNegativeAmount.
+            // Since the transaction IS reimbursable, hasOnlyNonReimbursableTransactions returns
+            // false, so PAY badge should be shown.
+            const fakeIouReport: Report = {
+                ...createRandomReport(Number(iouReportID), CONST.REPORT.CHAT_TYPE.POLICY_EXPENSE_CHAT),
+                reportID: iouReportID,
+                type: CONST.REPORT.TYPE.EXPENSE,
+                policyID,
+                stateNum: CONST.REPORT.STATE_NUM.APPROVED,
+                statusNum: CONST.REPORT.STATUS_NUM.APPROVED,
+                managerID: 999999,
+                total: 5000,
+                nonReimbursableTotal: 0,
+                isWaitingOnBankAccount: false,
+            };
+
+            const fakeTransaction: Transaction = {
+                ...createRandomTransaction(0),
+                reportID: iouReportID,
+                amount: 5000,
+                status: CONST.TRANSACTION.STATUS.POSTED,
+                bank: '',
+                reimbursable: true,
+            };
+
+            await Onyx.set(`${ONYXKEYS.COLLECTION.POLICY}${policyID}`, fakePolicy);
+            await Onyx.set(`${ONYXKEYS.COLLECTION.REPORT}${chatReportID}`, fakeChatReport);
+            await Onyx.set(`${ONYXKEYS.COLLECTION.REPORT}${iouReportID}`, fakeIouReport);
+            await Onyx.set(`${ONYXKEYS.COLLECTION.TRANSACTION}${fakeTransaction.transactionID}`, fakeTransaction);
+            await waitForBatchedUpdates();
+
+            const result = getBadgeFromIOUReport(fakeIouReport, fakeChatReport, fakePolicy, {}, undefined, RORY_EMAIL, RORY_ACCOUNT_ID);
+            expect(result).toBe(CONST.REPORT.ACTION_BADGE.PAY);
+        });
+
         it('should return undefined badge for settled report', async () => {
             const iouReportID = '1300';
             const chatReportID = '1301';