---

# (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 builds a small in-memory reference set of `PetType` test data for the `PetTypeFormatterTests` class. Its business role is not to persist or retrieve master data, but to provide deterministic sample pet categories that can be fed into formatter tests. The method prepares two domain values, `Dog` and `Bird`, which represent common pet classifications used by the formatter test scenarios. It follows a simple factory-style construction pattern: create a collection, instantiate sample domain objects, assign display names, and return the assembled list. Because this is a test fixture helper, it is intentionally isolated from external services, databases, and conditional business rules. The method supports repeatable validation of formatting behavior by ensuring the same sample pet types are always available.

## 2. Processing Pattern (Detailed Business Logic)

```mermaid
flowchart TD
    START["makePetTypes()"]
    CREATE_LIST["Create new ArrayList<PetType>"]
    CREATE_DOG["Instantiate PetType anonymous object"]
    SET_DOG["setName(\"Dog\")"]
    ADD_DOG["Add Dog PetType to list"]
    CREATE_BIRD["Instantiate PetType anonymous object"]
    SET_BIRD["setName(\"Bird\")"]
    ADD_BIRD["Add Bird PetType to list"]
    RETURN_NODE["Return petTypes"]
    START --> CREATE_LIST
    CREATE_LIST --> CREATE_DOG
    CREATE_DOG --> SET_DOG
    SET_DOG --> ADD_DOG
    ADD_DOG --> CREATE_BIRD
    CREATE_BIRD --> SET_BIRD
    SET_BIRD --> ADD_BIRD
    ADD_BIRD --> RETURN_NODE
```

## 3. Parameter Analysis

| No | Parameter Name | Type | Business Description |
|----|---------------|------|---------------------|
| - | (none) | - | This method takes no input parameters. All business data is created internally as static test fixture content. |

External state read by the method: none. The method does not access instance fields, request context, database state, or environment configuration.

## 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.

| CRUD | SC / CBS | SC Code | Entity / DB | Operation Description |
|------|----------|---------|-------------|----------------------|
| U | `setName` | NamedEntity | `PetType` | Assigns the display name on each sample `PetType` test object before returning it to the formatter test. |

## 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.

| # | Caller (Screen/Batch) | Call Chain (Full Path to this Method) | Terminal (SC / CRUD / Entity) |
|---|----------------------|--------------------------------------|-------------------------------|
| 1 | `PetTypeFormatterTests.shouldDisplayPetTypes()` | `PetTypeFormatterTests.shouldDisplayPetTypes()` -> `PetTypeFormatterTests.makePetTypes()` | `setName [U] PetType` |
| 2 | `PetTypeFormatterTests.shouldParsePetTypes()` | `PetTypeFormatterTests.shouldParsePetTypes()` -> `PetTypeFormatterTests.makePetTypes()` | `setName [U] PetType` |

## 6. Per-Branch Detail Blocks

**Block 1** — [SEQUENCE] `(initialize sample pet types)` (L82)

> Creates an empty list that will hold the test pet type master data.

| # | Type | Code |
|---|------|------|
| 1 | SET | `List<PetType> petTypes = new ArrayList<>();` |

**Block 2** — [SEQUENCE] `(create first sample pet type)` (L83-L86)

> Builds the first fixture record used by formatter tests.

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

**Block 3** — [SEQUENCE] `(create second sample pet type)` (L87-L90)

> Builds the second fixture record used by formatter tests.

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

**Block 4** — [RETURN] `(return assembled fixture list)` (L91-L93)

> Returns the completed in-memory collection to the caller.

| # | Type | Code |
|---|------|------|
| 1 | RETURN | `return petTypes;` |

## 7. Glossary

| Term | Type | Business Meaning |
|------|------|------------------|
| `PetType` | Domain object | Pet category master data used to classify animals in the PetClinic domain. |
| `PetTypeFormatterTests` | Test class | Unit test class that verifies formatter behavior for pet type values. |
| `makePetTypes` | Helper method | Test fixture builder that creates sample pet type reference data. |
| `Dog` | Sample value | A common pet category used as test input for formatter scenarios. |
| `Bird` | Sample value | A common pet category used as test input for formatter scenarios. |
| `setName` | Method | Assigns the human-readable pet type label on a `PetType` instance. |
| `ArrayList` | Technical term | Mutable in-memory list implementation used to assemble the sample fixture set. |