Files

T

mostalive 4e0aea732a Add payment state to Order with guarded Pay transition

- Order records payments: Payments, AmountPaid, Outstanding,
  IsFullyPaid (parameterless, replaces IsFullyPaid(expectedTotal))
- Pay rejects open orders, non-positive amounts, and overpayments
- 4 new OrderCompletion tests assert observable state:
  PaymentOnOpenOrder_Throws_OrderStillUnpaid,
  CompletedOrder_PartialPayment_IsNotFullyPaid,
  CompletedOrder_PaymentsSummingToTotal_IsFullyPaid,
  Overpayment_Throws_AmountPaidUnchanged
- 11 tests green (6 OrderTotal + 5 OrderCompletion)

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src

Add payment state to Order with guarded Pay transition

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tests

Add payment state to Order with guarded Pay transition

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global.json

Add Order and OrderBook domains with test suites

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mise.toml

Add Order and OrderBook domains with test suites

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README.md

Add Order and OrderBook domains with test suites

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ShowDontTell.sln

Add Order and OrderBook domains with test suites

2026-10-01 11:38:06 +01:00

README.md

Show, Don't Tell — C# exercise workspace

Workspace for the "Show, Don't Tell — Using Examples with Coding Agents" exercise (C# / .NET 10 / NUnit).

Prerequisites

.NET 10 SDK (version pinned in global.json)
If you use mise: mise install installs the SDK listed in mise.toml

Build and run the tests

dotnet build
dotnet test

Layout

Directory	Contents
`src/OrderDomain`, `tests/OrderTests`	Order domain with discount behaviour, and its tests
`src/OrderBookDomain`, `tests/OrderBookTests`	OrderBook state machine, and its integration tests

Open ShowDontTell.sln in your IDE (Rider, Visual Studio, VS Code with the C# extension).