create-case.test.js

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// Import all functions from createCase.js
const lambda = require('../../../src/handlers/create-case.js');
// Defined Constants
const SuccessMessages = require('../../../src/constants/messages/success');

// Mock bean.js
jest.mock('../../../src/core/bean.js', () => () => ({
    save: function() {
        return {
            id: 1,
            case_number: 1
        };
    },
    get: function() {
        return 1;
    }
}));

// This includes all tests for createCaseHandler()
describe('Test for create-case', function() {
    // This test invokes createCaseHandler() and compare the result
    it('Verifies successful response', async () => {
        // Input
        const evt = {
            Details: {
                Parameters: {
                    contactName: 'John',
                    contactId: 'JohnId',
                    caseDescription: 'test',
                    caseSource: 'Phone'
                }
            }
        };
        // Invoke helloFromLambdaHandler()
        const result = await lambda.createCaseHandler(evt);
        // The expected result
        const expectedResult = {
            statusCode: 200,
            caseId: 1,
            caseNumber: 1,
            body: SuccessMessages.LAMBDA_FUNCTION_SUCCESS
        };
        // Compare the result with the expected result
        expect(result).toEqual(expectedResult);
    });
});