Qodo AI Test Generation: How It Works with Examples

Based on the provided JavaScript function for calculating a shopping cart total with discounts, Qodo would generate comprehensive test cases to cover various scenarios and edge cases. Here's an overview of what Qodo might produce:

Happy Path Tests:

1. Basic Calculation: Test that the function correctly calculates the subtotal without any discount.

   • Input: items = [{price: 50}, {price: 30}]
   • Expected Output: {subtotal: 80, discount: 0}

2. Discount Application: Test that a valid discount code is applied to reduce the total price.

   • Input: items = [{price: 100}], discountCode = 'SUMMER50'
   • Expected Output: {subtotal: 100, discount: 50}

Edge Case Tests:

1. Empty Items Array: Test that an empty items array results in a subtotal of zero.

   • Input: items = []
   • Expected Output: {subtotal: 0, discount: 0}

2. Invalid Discount Code: Test that the function throws an error when provided with an invalid or non-existent discount code.

   • Input: `

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