Hp 2250/fix behat test at billing mrdp

[ValeriyShnurovoy]

Summary by CodeRabbit

• New Features

  • Enhanced usage calculation logic in the ProgressivePrice class
  • Added a new method to build progressive prices in the Behat testing context

• Tests

  • Improved test infrastructure for billing scenarios

[coderabbitai]

Walkthrough

The pull request introduces modifications to the ProgressivePrice class in calculating usage and adds a new method to the BillingContext class for building progressive prices. The changes focus on improving the precision of usage calculation by ensuring unit compatibility during subtraction and enhancing the Behat testing framework's ability to construct progressive pricing scenarios more efficiently.

Changes

File	Change Summary
src/price/ProgressivePrice.php	Modified calculateUsage method to convert input quantity before subtraction and return calculated usage
tests/behat/bootstrap/BillingContext.php	Added buildProgressivePrices method with @Given annotation for streamlined progressive price construction

Sequence Diagram

sequenceDiagram
    participant Input as Input Quantity
    participant Prepaid as Prepaid Quantity
    participant Calculator as ProgressivePrice
    participant Result as Usage Calculation

    Input ->> Calculator: Convert units
    Prepaid ->> Calculator: Compare units
    Calculator ->> Result: Subtract prepaid from input
    Result -->> Calculator: Return calculated usage

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Possibly related PRs

• HP-1950/Implement_progressive_prices_API #67: ProgressivePriceTest class unit tests for the calculateUsage method modifications

Poem

🐰 A Rabbit's Ode to Progressive Pricing 🧮

In units precise, our numbers dance,
Subtracting with mathematical stance,
Prepaid and input, now in sync,
A calculation that makes metrics wink!
Progressive pricing, oh so neat! 🚀

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[coderabbitai]

Actionable comments posted: 0

🧹 Nitpick comments (1)

tests/behat/bootstrap/BillingContext.php (1)

153-167: New step definition to build progressive prices is logically consistent.
This method iterates gracefully over the stored progressive price data, building each price through fullPrice(). You might consider adding a guard condition to handle empty or malformed $this->progressivePrice[$type] arrays—this will provide clearer error messages in Behat tests.

📜 Review details

Configuration used: CodeRabbit UI
Review profile: CHILL
Plan: Pro

📥 Commits

Reviewing files that changed from the base of the PR and between 9f1c3f1 and ece2df7.

📒 Files selected for processing (2)

• src/price/ProgressivePrice.php (1 hunks)
• tests/behat/bootstrap/BillingContext.php (1 hunks)

🔇 Additional comments (1)

src/price/ProgressivePrice.php (1)

52-55: Well-handled unit conversion and usage subtraction.
The conversion to the unit of the prepaid quantity prior to subtraction is a good decision, ensuring consistent unit handling. This helps avoid miscalculations when the input quantity has a different unit. Additionally, returning a zero quantity on non-positive usage is clear and intuitive. However, you may wish to verify through unit tests that all edge cases (e.g., exact equality or fractional units) are handled properly.