---

# (DD45) Business Logic — PetTypeFormatterTests.makePetTypes() [14 LOC]

| Field | Value |
|-------|-------|
| Fully Qualified Name | `org.springframework.samples.petclinic.owner.PetTypeFormatterTests` |
| Layer | Utility / Test Support |
| Module | `owner` (Package: `org.springframework.samples.petclinic.owner`) |

## 1. Role

### PetTypeFormatterTests.makePetTypes()

This helper method prepares a deterministic in-memory catalog of pet types for formatter test execution. In business terms, it simulates the master data that the `PetTypeFormatter` must read from the repository when converting user-facing text into a `PetType` domain object. The method builds a small sample list containing two canonical pet categories, `Dog` and `Bird`, so the tests can verify both a successful parse path and a parse-failure path against known values.

The method follows a simple fixture-builder pattern: it creates a collection, populates it with preconfigured `PetType` instances, and returns the collection to the test setup. It does not branch, validate, or consult any external system; its role is purely to supply repeatable test data. In the larger system, it acts as private test scaffolding for the formatter behavior and helps isolate the test from the repository implementation.

## 2. Processing Pattern (Detailed Business Logic)

```mermaid
flowchart TD
START(["makePetTypes()"])
INIT["Create empty ArrayList<PetType>"]
DOG["Instantiate anonymous PetType and setName('Dog')"]
ADD_DOG["Add Dog pet type to list"]
BIRD["Instantiate anonymous PetType and setName('Bird')"]
ADD_BIRD["Add Bird pet type to list"]
RETURN_NODE["Return petTypes list"]
START --> INIT
INIT --> DOG
DOG --> ADD_DOG
ADD_DOG --> BIRD
BIRD --> ADD_BIRD
ADD_BIRD --> RETURN_NODE
```

The method executes as a straight-line fixture construction flow. It creates an empty list, instantiates the first sample pet type, assigns the business name `Dog`, and appends it to the collection. It then repeats the same pattern for the second sample pet type with the name `Bird`. Finally, it returns the populated list to the caller.

## 3. Parameter Analysis

| No | Parameter Name | Type | Business Description |
|----|---------------|------|---------------------|
| - | (none) | - | - |

This method has no parameters. Its behavior is driven entirely by local object creation and hard-coded test fixture values. The only state it reads is the `PetType` domain type and the inherited `setName` behavior used to seed each sample record.

## 4. CRUD Operations / Called Services

### Pre-computed evidence from code analysis graph:

| CRUD | SC / CBS | SC Code | Entity / DB | Operation Description |
|------|----------|---------|-------------|----------------------|
| - | `NamedEntity.setName` | NamedEntity | - | Calls `setName` in `NamedEntity` |

Analyze all method calls within this method and classify each as a CRUD operation.
Use the pre-computed evidence above. If SC Code or Entity/DB is missing, try to infer from:
- The SC Code (Service Component code, e.g., `EKK0361A010SC`, `EKK1081D010CBS`) — look at the class name of the called method or its containing class.
- The Entity/DB tables — search for table name constants (often `KK_T_*` pattern), SQL references, or entity names in the called method.

| CRUD | SC / CBS | SC Code | Entity / DB | Operation Description |
|------|----------|---------|-------------|----------------------|
| C | `setName` | NamedEntity | `PetType` | Assigns the display name for each sample pet type used in formatter testing |
| C | `add` | ArrayList | - | Adds each initialized sample pet type to the in-memory list |
| R | `return petTypes` | - | - | Returns the constructed sample collection to the caller |

The method performs no persistence CRUD against a database. The only business-facing mutation is the construction of two `PetType` instances and the assignment of their names. The list addition is a local collection operation that supports the test fixture, not a repository write.

## 5. Dependency Trace

### Pre-computed evidence from code analysis graph:

No screen/batch entry points found within 8 hops. Direct callers found: 2 methods.
Terminal operations from this method: `setName` [-], `setName` [-]

Trace who calls this method and what this method ultimately calls.
Use the pre-computed evidence and caller search results from Step 2 above.

| # | Caller (Screen/Batch) | Call Chain (Full Path to this Method) | Terminal (SC / CRUD / Entity) |
|---|----------------------|--------------------------------------|-------------------------------|
| 1 | Test method: `shouldParse` | `PetTypeFormatterTests.shouldParse` -> `PetTypeFormatterTests.makePetTypes` | `setName [C] PetType` |
| 2 | Test method: `shouldThrowParseException` | `PetTypeFormatterTests.shouldThrowParseException` -> `PetTypeFormatterTests.makePetTypes` | `setName [C] PetType` |

This helper is only invoked by local test methods in the same class. It is not reached from a production screen, controller, batch, or service entry point. Both callers use the generated list as mocked repository output so the formatter can be exercised against a stable sample dataset.

## 6. Per-Branch Detail Blocks

**Block 1** — [SEQUENCE] `(straight-line fixture construction)` (L82-L95)

> Builds a small, fixed set of sample pet types for formatter tests.

| # | Type | Code |
|---|------|------|
| 1 | SET | `List<PetType> petTypes = new ArrayList<>();` |
| 2 | EXEC | `petTypes.add(new PetType() { ... });` |
| 3 | EXEC | `setName("Dog");` |
| 4 | EXEC | `petTypes.add(new PetType() { ... });` |
| 5 | EXEC | `setName("Bird");` |
| 6 | RETURN | `return petTypes;` |

**Block 1.1** — [INLINE INITIALIZER] `(first sample pet type)` (L84-L88)

| # | Type | Code |
|---|------|------|
| 1 | EXEC | `new PetType() { ... }` |
| 2 | EXEC | `setName("Dog");` |

**Block 1.2** — [INLINE INITIALIZER] `(second sample pet type)` (L89-L93)

| # | Type | Code |
|---|------|------|
| 1 | EXEC | `new PetType() { ... }` |
| 2 | EXEC | `setName("Bird");` |

## 7. Glossary

| Term | Type | Business Meaning |
|------|------|------------------|
| `PetType` | Domain entity | Master record representing an animal category that can be selected in the pet workflow |
| `PetTypeFormatter` | Formatter | Spring formatter that converts between text input and `PetType` domain objects |
| `PetTypeRepository` | Repository | Data access component used by the formatter tests to simulate available pet types |
| `setName` | Method | Assigns the human-readable pet type label used in UI and parsing logic |
| `Dog` | Sample value | Test fixture pet type representing a common animal category |
| `Bird` | Sample value | Test fixture pet type representing an alternative animal category |
| formatter | Technical term | A conversion component that translates between text and domain objects |
| test fixture | Technical term | Prebuilt sample data used to make unit tests deterministic |
| anonymous subclass | Technical term | Inline object definition used here to initialize `PetType` instances with a name immediately |