From 2dbd4d827cfcae9397b49f20454120c3391ad635 Mon Sep 17 00:00:00 2001
From: gitcliff <gitacliff48@gmail.com>
Date: Sun, 9 Jun 2024 23:22:44 +0300
Subject: [PATCH] (test):Adding test coverage for encounter date time handler

---
 .../encounterDatetimeHandler.test.ts          | 159 ++++++++++++++++++
 .../encounterDatetimeHandler.ts               |   2 +-
 2 files changed, 160 insertions(+), 1 deletion(-)
 create mode 100644 src/submission-handlers/encounterDatetimeHandler.test.ts

diff --git a/src/submission-handlers/encounterDatetimeHandler.test.ts b/src/submission-handlers/encounterDatetimeHandler.test.ts
new file mode 100644
index 000000000..d8b7604fc
--- /dev/null
+++ b/src/submission-handlers/encounterDatetimeHandler.test.ts
@@ -0,0 +1,159 @@
+import { type EncounterContext } from '../form-context';
+import { type OpenmrsEncounter, type FormField } from '../types';
+import { EncounterDatetimeHandler } from './encounterDatetimeHandler';
+
+const encounterContext: EncounterContext = {
+  patient: {
+    id: '833eb896-c1f0-11eb-8529-0242ac130003',
+  },
+  location: {
+    uuid: '81e6e516-c1f0-11eb-8529-0242ac130003',
+  },
+  encounter: {
+    uuid: '773455da-3ec4-453c-b565-7c1fe35426be',
+    encounterDatetime: '2023-06-09T09:42:40+00:00',
+    encounterProviders: [],
+    obs: [],
+  },
+  sessionMode: 'enter',
+  encounterDate: new Date(2020, 11, 29),
+  setEncounterDate: (value) => {},
+  encounterProvider: '2c95f6f5-788e-4e73-9079-5626911231fa',
+  setEncounterProvider: jest.fn,
+  setEncounterLocation: jest.fn,
+  encounterRole: '6d95f6f5-788e-4e73-9079-5626911231f4',
+  setEncounterRole: jest.fn,
+};
+
+describe('EncounterDatetimeHandler', () => {
+  let field: FormField;
+
+  beforeEach(() => {
+    // Define the field once before each test
+    field = {
+      label: 'Encounter Location',
+      type: 'encounterLocation',
+      required: false,
+      id: 'encounterLocation',
+      questionOptions: {
+        rendering: 'ui-select-extended',
+      },
+      validators: [],
+    };
+  });
+
+  afterEach(() => {
+    // Clean up any side effects if needed
+    jest.clearAllMocks();
+  });
+
+  describe('handleFieldSubmission', () => {
+    it('should handle encounter date time submission', () => {
+      // replay
+      const role = EncounterDatetimeHandler.handleFieldSubmission(field, '2017-01-18T09:42:40+00:00', encounterContext);
+      // verify
+      expect(role).toEqual('2017-01-18T09:42:40+00:00');
+    });
+  });
+
+  describe('getInitialValue', () => {
+    it('should return encounterDatetime when it exists', () => {
+      // invoke
+      const initialValue = EncounterDatetimeHandler.getInitialValue(encounterContext.encounter, field);
+
+      // verify
+      expect(initialValue).toEqual(new Date('2023-06-09T09:42:40+00:00'));
+    });
+
+    it('should return current date when encounterDatetime does not exist', () => {
+      // setup
+      const encounter: OpenmrsEncounter = {
+        uuid: '773455da-3ec4-453c-b565-7c1fe35426be',
+        encounterProviders: [],
+        obs: [],
+      };
+
+      // invoke
+      const initialValue = EncounterDatetimeHandler.getInitialValue(encounter, field);
+
+      // verify
+      expect(initialValue).toEqual(expect.any(Date));
+    });
+  });
+
+  describe('getDisplayValue', () => {
+    it('should return the value as-is for a valid date string', () => {
+      const value = '2023-06-09T09:42:40+00:00';
+      // invoke
+      const displayValue = EncounterDatetimeHandler.getDisplayValue(field, value);
+
+      // verify
+      expect(displayValue).toEqual(value);
+    });
+
+    it('should return the value as-is for a Date object', () => {
+      const value = new Date('2023-06-09T09:42:40+00:00');
+
+      // invoke
+      const displayValue = EncounterDatetimeHandler.getDisplayValue(field, value);
+
+      // verify
+      expect(displayValue).toEqual(value);
+    });
+
+    it('should return null for null value', () => {
+      const value = null;
+
+      // invoke
+      const displayValue = EncounterDatetimeHandler.getDisplayValue(field, value);
+
+      // verify
+      expect(displayValue).toBeNull();
+    });
+
+    it('should return undefined for undefined value', () => {
+      const value = undefined;
+
+      // invoke
+      const displayValue = EncounterDatetimeHandler.getDisplayValue(field, value);
+
+      // verify
+      expect(displayValue).toBeUndefined();
+    });
+
+    it('should return the value as-is for other types of values', () => {
+      const value = 12345; // Example of another type of value
+
+      // invoke
+      const displayValue = EncounterDatetimeHandler.getDisplayValue(field, value);
+
+      // verify
+      expect(displayValue).toEqual(value);
+    });
+  });
+
+  describe('getPreviousValue', () => {
+    it('should return the encounterDatetime as a Date object', () => {
+      // invoke
+      const previousValue = EncounterDatetimeHandler.getPreviousValue(field, encounterContext.encounter, []);
+
+      // verify
+      expect(previousValue).toEqual(new Date('2023-06-09T09:42:40+00:00'));
+    });
+
+    it('should return the current date if encounterDatetime does not exist', () => {
+      // setup
+      const encounter: OpenmrsEncounter = {
+        uuid: '773455da-3ec4-453c-b565-7c1fe35426be',
+        encounterProviders: [],
+        obs: [],
+      };
+
+      // invoke
+      const previousValue = EncounterDatetimeHandler.getPreviousValue(field, encounter, []);
+
+      // verify
+      expect(previousValue).toBeUndefined();
+    });
+  });
+});
diff --git a/src/submission-handlers/encounterDatetimeHandler.ts b/src/submission-handlers/encounterDatetimeHandler.ts
index 7810384dc..6d905336a 100644
--- a/src/submission-handlers/encounterDatetimeHandler.ts
+++ b/src/submission-handlers/encounterDatetimeHandler.ts
@@ -15,6 +15,6 @@ export const EncounterDatetimeHandler: SubmissionHandler = {
     return value;
   },
   getPreviousValue: (field: FormField, encounter: OpenmrsEncounter, allFormFields?: FormField[]) => {
-    return new Date(encounter.encounterDatetime);
+    return encounter?.encounterDatetime ? new Date(encounter.encounterDatetime) : undefined;
   },
 };