Detected dumb terminal, disabling fancy input and pretty output.

Aider v0.86.2
Model: ollama_chat/qwen3-opencode-big:30b with whole edit format
Git repo: none
Repo-map: disabled
Added README.md to the chat.
Added TASK.md to the chat.
Added check-seed-contract.js to the chat.
Added count-contact.js to the chat.
Added find-contact-stragglers.js to the chat.
Added list-contact-targets.js to the chat.
Added package.json to the chat.
Added src\app.js to the chat.
Added src\contact-store.js to the chat.
Added src\contact.js to the chat.
Added src\routes.js to the chat.
Added src\seed.js to the chat.
Added src\test.js to the chat.
Added verify.js to the chat.

litellm.APIConnectionError: Ollama_chatException - litellm.Timeout: Connection
timed out after 600.0 seconds.
Retrying in 0.2 seconds...

--------------
Γû║ **THINKING**

We are going to rename "Contact" to "Client" in the specified files, following
the contract.
 We must replace:
   - "Contact" (word boundary) -> "Client"
   - "contact" (word boundary) -> "client"

 However, note: the contract says to replace word-boundary occurrences. We must
be cautious to not replace inside words (like "ContactManager" becomes
"ClientManager", but note that "Contact" as a standalone word).

 We are only to edit the following files (as per the goal):
   - README.md
   - src/app.js
   - src/contact-store.js
   - src/contact.js
   - src/routes.js
   - src/seed.js
   - src/test.js

 We are not to edit the support files.

 Let's go through each file and make the replacements.

 Important: We must preserve the original structure and only change the word
"Contact" (and "contact") to "Client" (and "client") when it is a word
boundary.

 We'll do:

   In the code:
     - Replace every occurrence of `\bContact\b` with `\bClient\b`
     - Replace every occurrence of `\bcontact\b` with `\bclient\b`

 But note: in the code, we have to be cautious about case. The contract says
"Contact" (capital C) and "contact" (lowercase c). However, in the code, we
have:

   - Class names: "Contact" (with capital C) -> becomes "Client"
   - Variable names: might be "contact" (lowercase) -> becomes "client"

 However, note that in the code, we have:

   - In `src/contact.js`: class Contact -> becomes class Client
   - In `src/contact-store.js`: ContactStore -> becomes ClientStore? But note:
the contract says to rename the class to Client, so the store should be
ClientStore.

 But wait: the contract says "Rename the Contact class/entity to Client", so:

   - The class name becomes `Client`
   - The store class should be `ClientStore` (because it stores Clients)

 However, note the acceptance criteria: "Zero occurrences of 'Contact'
(case-sensitive class reference) remain"

 So we must change:

   - `Contact` (as a class) to `Client`
   - `ContactStore` (as a class) to `ClientStore`
   - `contact` (as a variable) to `client`

 But note: the contract says "Replace every word-boundary occurrence of
'Contact' with 'Client'", so:

   - "Contact" (with capital C) becomes "Client"
   - "contact" (with lowercase c) becomes "client"

 However, in the code, we have:

   - In `src/contact-store.js`:
        class ContactStore { ... }   -> becomes class ClientStore { ... }

   - In `src/contact-store.js`:
        this.contacts = [];   -> we are changing the class, but the variable
name "contacts" is not "Contact", so we leave it.

   - In `src/contact-store.js`:
        store.add(contact);   -> here "contact" is a variable, so we change to
"client"

   But note: the contract says to replace "contact" (word boundary) with
"client", so we must change the variable name.

 However, the problem: we are not allowed to change the variable names
arbitrarily? The contract says "Rename the Contact class/entity to Client",
meaning the entity, not every variable.

 But the acceptance criteria says: "All files that previously referenced
'Contact' now reference 'Client'".

 So we must change:

   - Every occurrence of the word "Contact" (as a word) to "Client", and
"contact" to "client".

 However, note that in the code, we have:

   - In `src/contact-store.js`:
        class ContactStore { ... }   -> we change to class ClientStore

   - In `src/contact-store.js`:
        const contact = new Contact(...);   -> we change to const client = new
Client(...);

   But note: the contract says to change the class name, so the variable that
holds a Contact instance should become a Client instance.

 However, the problem: the contract says "Rename the Contact class/entity to
Client", so we are renaming the class, and then all references to the class
(including variable names that are of that type) should be updated.

 But note: the contract also says "Variable names that reference Contact (e.g.,
newContact -> newClient)".

 So we are to change:

   - `newContact` to `newClient`
   - `contact` to `client` (if it's a variable of type Contact)

 However, we must be cautious: we are only to change the word-boundary
occurrences. So:

   - `Contact` (as a word) becomes `Client`
   - `contact` (as a word) becomes `client`

 But note: in the code, we have:

   - `Contact` (class) -> becomes `Client`
   - `contact` (variable) -> becomes `client`

 However, in the code, we have:

   - In `src/contact-store.js`:
        class ContactStore { ... }   -> we change to class ClientStore

   - In `src/contact-store.js`:
        this.contacts = [];   -> we don't change because "contacts" is not
"Contact" (it's plural and not the word "Contact")

   - In `src/contact-store.js`:
        store.add(contact);   -> we change to store.add(client);

   - In `src/contact-store.js`:
        const contact = ...;   -> we change to const client = ...;

 But note: the contract says to change every word-boundary occurrence. So:

   - `Contact` (with capital C) -> `Client`
   - `contact` (with lowercase c) -> `client`

 However, in the code, we have:

   - `Contact` (class) is always capitalized, so we change to `Client`.
   - `contact` (variable) is usually lowercase, so we change to `client`.

 But note: in the code, we have:

   - In `src/contact-store.js`:
        const contact = new Contact(...);   -> becomes const client = new
Client(...);

   - In `src/contact-store.js`:
        store.add(contact);   -> becomes store.add(client);

   - In `src/contact-store.js`:
        const contact = store.findByEmail(email);   -> becomes const client =
store.findByEmail(email);

   - In `src/contact-store.js`:
        if (!contact) ...   -> becomes if (!client) ...

 However, note: the contract says to change the class name, so the class
`Contact` becomes `Client`, and then the variable that holds an instance of
that class should be named `client` (if it was named `contact`).

 But note: the contract also says "Do not rename src/contact.js or
src/contact-store.js for this controlled fixture." -> meaning we are not to
change the file names? Actually, the task says to rename the class, not the
file. However, the file names are to be changed? But the contract says: "File
names (e.g., contact.js -> client.js)".

 But the goal says: "Edit only these authored files" and lists:

   - src/contact-store.js
   - src/contact.js

 So we are not to change the file names? The contract says "Do not rename
src/contact.js or src/contact-store.js for this controlled fixture."

 Therefore, we are only changing the content of the files, not the file names.

 So we will change the content of the files to use "Client" and "client" as
appropriate.

 Let's go through each file:

 1. README.md
    - Change "Contact" to "Client" (word boundary) and "contact" to "client"
(word boundary) as needed.

 2. src/app.js
    - Change "Contact" to "Client" (class reference) and "contact" to "client"
(variable) as needed.

 3. src/contact-store.js
    - Change class ContactStore to ClientStore
    - Change class Contact to Client (but note: the class is defined in
contact.js, so we don't change it here? Actually, we are changing the class
name in contact.js, so in contact-store.js we will change the reference to
Contact to Client.

    However, note: the contract says to change the class name, so in
contact-store.js we have:

        const { Contact } = require('./contact');

    We must change that to:

        const { Client } = require('./contact');

    And then change every occurrence of `Contact` (as a word) to `Client` and
`contact` to `client`.

 4. src/contact.js
    - Change class Contact to Client
    - Change every occurrence of `Contact` (class) to `Client` (so the class
name and the constructor reference)
    - Change every occurrence of `contact` (variable) to `client` (if it's a
variable of type Contact)

 5. src/routes.js
    - Change every occurrence of `Contact` (class) to `Client` (so the class
name in the comments and in the code? But note: the code doesn't have a class
named Contact, it's using the ContactStore. However, the route handlers are for
Contact, so we change the comments and the variable names that are of type
Contact? Actually, the route handlers are for Contact, so we change the word
"Contact" in the comments and in the code that refers to the entity.

    But note: the code in routes.js doesn't have a class named Contact, it uses
the ContactStore. However, we have:

        const { ContactStore } = require('./contact-store');

    We change that to:

        const { ClientStore } = require('./client-store');   // But wait, we
are not changing the file name of contact-store.js to client-store.js? The
contract says not to rename the file.

    However, the contract says: "Do not rename src/contact-store.js", so we are
not changing the file name. Therefore, we must keep the require as
'./contact-store', but the class inside is now ClientStore.

    So in routes.js:

        const { ContactStore } = require('./contact-store');   -> becomes const
{ ClientStore } = require('./contact-store');

    And then change every occurrence of `Contact` (as a word) to `Client` and
`contact` to `client`.

    But note: the route handlers are for Contact, so we change the comments and
the variable names that are of type Contact? Actually, the route handlers are
for the entity, so we change the word "Contact" to "Client" in the comments and
in the code that refers to the entity.

    However, the code in routes.js doesn't have the word "Contact" in the code
(except in the require and in the comments). So we change:

        // Route handlers for Contact API endpoints -> Route handlers for
Client API endpoints

    And also, in the code, we have:

        const contact = store.findByEmail(email);   -> becomes const client =
store.findByEmail(email);

    But note: the contract says to change the variable name from `contact` to
`client`.

 6. src/seed.js
    - Change the variable `seedContacts` to `seedClients`? But note: the
contract says to change the class, not the variable names for the seed data.
However, the seed data is an array of Contact records, so we should change the
variable name to `seedClients` to reflect the new name.

    But the contract says: "seed data file uses 'Client' terminology", so we
change the variable name.

    However, note: the contract says "seedContacts" must be an array of plain
objects. We are changing the variable name to `seedClients`.

    Also, in the function `loadSeedData(store)`, we have:

        for (const contact of seedContacts) { ... }

    We change `contact` to `client`.

    And note: the module exports:

        module.exports = { seedContacts, loadSeedData };

    We change to:

        module.exports = { seedClients, loadSeedData };

 7. src/test.js
    - Change every occurrence of `Contact` to `Client` (class) and `contact` to
`client` (variable).

    Specifically:
        - `const { Contact } = require('./contact');` -> `const { Client } =
require('./contact');`
        - `const { ContactStore } = require('./contact-store');` -> `const {
ClientStore } = require('./contact-store');`
        - In the test descriptions: "Contact constructor" -> "Client
constructor"
        - In the test code: `new Contact` -> `new Client`
        - `const c = new Contact(...)` -> `const c = new Client(...)`
        - `if (c.name !== 'Alice') ...` -> remains the same because it's a
string
        - `ContactStore` -> `ClientStore` in the require and in the test code
(like `const store = new ContactStore();` becomes `const store = new
ClientStore();`)

 However, note: the contract says "Do not create new files", so we are not
changing the file names.

 Let's now write the updated files.

 Important: We must not change the file names, so we keep:

   - src/contact.js
   - src/contact-store.js

 But note: the contract says "Do not rename src/contact.js or
src/contact-store.js", so we are safe.

 Now, let's write the updated files.

 We'll go file by file.

 Note: We are to output the entire content of the updated file.

 Let's start with README.md:

 Original README.md:

   # Contact Manager

   A simple Contact management system for storing and retrieving Contact
records.

   ## Modules

   - `contact.js` ΓÇö Contact class with name, email, phone, company fields
   - `contact-store.js` ΓÇö In-memory ContactStore for CRUD operations
   - `routes.js` ΓÇö Route handlers for Contact API endpoints
   - `seed.js` ΓÇö Seed data with sample Contact records
   - `test.js` ΓÇö Unit tests for Contact and ContactStore

   ## Usage

   ```bash
   node src/app.js    # Run the application
   node src/test.js   # Run tests
   ```

 We change:

   - "Contact" to "Client" (word boundary) and "contact" to "client" (word
boundary).

   So:

     # Client Manager

     A simple Client management system for storing and retrieving Client
records.

     ## Modules

     - `client.js` ΓÇö Client class with name, email, phone, company fields
     - `client-store.js` ΓÇö In-memory ClientStore for CRUD operations
     - `routes.js` ΓÇö Route handlers for Client API endpoints
     - `seed.js` ΓÇö Seed data with sample Client records
     - `test.js` ΓÇö Unit tests for Client and ClientStore

     ## Usage

     ```bash
     node src/app.js    # Run the application
     node src/test.js   # Run tests
     ```

 But note: the contract says "Do not rename src/contact.js", so we are not
changing the file name to client.js. However, the README is describing the
files, so we must change the file names in the README to reflect the new
naming? But the contract says "File names (e.g., contact.js -> client.js)".

 However, the goal says: "Edit only these authored files", and the README is
one of them. So we change the README to say "client.js" and "client-store.js",
even though the actual file names are still "contact.js" and
"contact-store.js". But note: the contract says to rename the files, but the
goal says "Do not rename src/contact.js or src/contact-store.js for this
controlled fixture.".

 This is a conflict. However, the contract says: "Rename the Contact
class/entity to Client throughout the entire codebase", and the file names are
part of the codebase. But the goal explicitly says: "Do not rename
src/contact.js or src/contact-store.js for this controlled fixture."

 Therefore, we must not change the file names in the README to "client.js" and
"client-store.js", because the files are still named "contact.js" and
"contact-store.js". We are only changing the content of the files.

 So in the README, we should not change the file names. We should change the
description to use "Client" but keep the file names as they are.

 However, the README says:

   - `contact.js` ΓÇö Contact class ... -> becomes `contact.js` ΓÇö Client class
...

 But note: the file name is still "contact.js", so we write:

   - `contact.js` ΓÇö Client class with name, email, phone, company fields

 Similarly for the others.

 So the README becomes:

   # Client Manager

   A simple Client management system for storing and retrieving Client records.

   ## Modules

   - `contact.js` ΓÇö Client class with name, email, phone, company fields
   - `contact-store.js` ΓÇö In-memory ClientStore for CRUD operations
   - `routes.js` ΓÇö Route handlers for Client API endpoints
   - `seed.js` ΓÇö Seed data with sample Client records
   - `test.js` ΓÇö Unit tests for Client and ClientStore

   ## Usage

   ```bash
   node src/app.js    # Run the application
   node src/test.js   # Run tests
   ```

 Now, let's do the code files.

 We'll do:

   src/app.js:

     Original:
        const { ContactStore } = require('./contact-store');
        const { createRoutes } = require('./routes');
        const { loadSeedData } = require('./seed');

        // Initialize store and load seed data
        const store = new ContactStore();
        const count = loadSeedData(store);

        // Create route handlers
        const routes = createRoutes(store);

        // Smoke test: verify the Contact system works
        const allContacts = routes.listContacts();
        if (allContacts.status !== 200) {
          console.error('Failed to list contacts');
          process.exit(1);
        }

        const alice = routes.getContact('alice@example.com');
        if (alice.status !== 200 || alice.body.name !== 'Alice Johnson') {
          console.error('Failed to get contact');
          process.exit(1);
        }

        console.log(`Contact system initialized with ${count} records`);
        console.log(`All ${allContacts.body.length} contacts loaded
successfully`);
        process.exit(0);

     Changes:
        - "ContactStore" -> "ClientStore" (in the require and in the new)
        - "Contact" in the comments and in the log messages: change to "Client"

        So:

          const { ClientStore } = require('./contact-store');
          ...
          const store = new ClientStore();
          ...
          console.log(`Client system initialized with ${count} records`);
          console.log(`All ${allContacts.body.length} clients loaded
successfully`);

        But note: the log message says "All ... contacts" -> we change
"contacts" to "clients" (because it's a word boundary: "contacts" ->
"clients").

        However, the contract says to change "contact" (word boundary) to
"client", so "contacts" (plural) is not a word boundary? Actually, "contacts"
is a word that contains "contact", but we are replacing word boundaries. The
word "contacts" does not have the word "contact" as a standalone word?
Actually, it does: the word "contact" is a substring, but we are matching word
boundaries.

        We are matching `\bcontact\b` -> so "contacts" does not match because
it's "contact" followed by 's', so it's not a word boundary at the end.
Therefore, we don't change "contacts" to "clients". But note: the contract says
to change "contact" (the word) to "client", so we only change the word
"contact" (without the 's').

        However, in the log message, we have:

          "All ${allContacts.body.length} contacts loaded successfully"

        We want to change "contacts" to "clients", but note: "contacts" is not
the word "contact" (it's plural). So we don't change it? But the contract says
to change the word "contact" to "client", so we don't change the plural.

        However, the acceptance criteria says: "All files that previously
referenced 'Contact' now reference 'Client'", meaning the singular form. But
the plural form is a different word.

        But note: the contract says "Zero occurrences of 'Contact'
(case-sensitive class reference) remain", so we are only concerned with the
class reference. The plural "contacts" is not the class reference.

        However, the README and the log messages are not class references. The
contract says to change the class reference, but the log message is a string.
We are to change the string to use "Client" terminology.

        The task says: "Rename the Contact class/entity to Client throughout
the entire codebase", meaning the entity. So the log message should say
"clients", not "contacts".

        But the contract says: "Replace every word-boundary occurrence of
'Contact' with 'Client'", so we are not changing "contacts" because it's not a
word boundary for "contact" (it's "contact" plus 's').

        However, the contract also says: "Replace every word-boundary
occurrence of 'contact' with 'client'". So we are to change the word "contact"
(without the 's') to "client", and "contacts" (which is not the word "contact")
remains.

        But note: the log message says "contacts", which is a different word.
So we leave it? But that would be inconsistent.

        Let's re-read the contract: "Replace every word-boundary occurrence of
'Contact' with 'Client'." and "Replace every word-boundary occurrence of
'contact' with 'client'."

        The word "contacts" does not match the pattern for "contact" (because
it's plural). So we don't change it.

        However, the task says: "The application still runs: `node src/app.js`
exits without error", and the log message is just a string. We are not required
to change the string to be plural? But the task says "Rename the Contact
class/entity to Client", so the entity is now called Client, so the plural
should be Clients? But the log message says "contacts", which is the old
plural.

        We are to change the string to say "clients", but note: the contract
says to change the word "contact" (singular) to "client", so the plural form is
not changed by the replacement. However, the task says "Rename the Contact
class/entity to Client", meaning the entity, so the plural should be "Clients"
(but note: the plural of Client is Clients, not clients).

        But the contract says to change "contact" (singular) to "client", so
the plural form is not directly changed. However, the log message is using the
plural form of the old name.

        We are going to change the log message to say "clients" (lowercase)
because the contract says to change the word "contact" to "client", and the
plural form is not a word boundary for "contact", but we are going to change
the string to be consistent.

        However, the contract does not require us to change the plural form.
But the task says: "All files that previously referenced 'Contact' now
reference 'Client'". The string "contacts" is a reference to the old name, so
we should change it to "clients".

        How can we do that? We are only replacing word-boundary occurrences. We
cannot change "contacts" to "clients" by the replacement rule.

        But note: the contract says "Replace every word-boundary occurrence of
'contact' with 'client'". The word "contacts" does not match the pattern for
"contact" (because it's not a word boundary at the end). So we don't change it.

        However, the task is to rename the entity, so the log message should be
updated to reflect the new name. We are allowed to change the string in the log
message because it's part of the code.

        We'll change the string manually:

          "All ${allContacts.body.length} clients loaded successfully"

        But note: the contract says to change the word "contact" to "client",
so we are not changing the string by the replacement rule, but we are changing
it because it's a string that refers to the entity.

        Since the task says "Rename the Contact class/entity to Client", we
change the string to use "client" (plural) as the new term.

        However, the contract says to change the word "contact" (singular) to
"client", so the plural form is not covered. But we are going to change the
string to "clients" (which is the plural of client) because it's the only way
to be consistent.

        We'll change:

          "All ${allContacts.body.length} contacts loaded successfully"
          to
          "All ${allContacts.body.length} clients loaded successfully"

        But note: the contract says to change the word "contact" (singular) to
"client", so we are not changing the plural. However, the string is not using
the word "contact", it's using "contacts", so we are not changing it by the
replacement rule. But we are changing it manually because it's a string that
refers to the entity.

        Given the ambiguity, and because the task says "Rename the Contact
class/entity to Client", we will change the string to use "clients" (plural)
for the log message.

        Alternatively, we could change the string to "Client" (singular) but
that would be odd: "All 5 Client loaded successfully" -> no, we want plural.

        So we change the string to "clients".

        Similarly, in the log: "Contact system" -> "Client system"

        So:

          console.log(`Client system initialized with ${count} records`);
          console.log(`All ${allContacts.body.length} clients loaded
successfully`);

        But note: the contract says to change the word "Contact" (capital C) to
"Client", so "Contact" in the string becomes "Client", and "contact"
(lowercase) becomes "client". However, the string "Contact system" has
"Contact" (capital) so we change to "Client system".

        And the string "contacts" (which is not a word boundary for "contact")
we change manually to "clients".

        We'll do that.

 Now, let's write the updated files.

 We'll do each file one by one.

 Note: We must not change the file names, so we keep the file names as they
are.

 Let's write the updated files.

------------
Γû║ **ANSWER**

README.md

```markdown

# Client Manager



A simple Client management system for storing and retrieving Client records.



## Modules



- `contact.js` ΓÇö Client class with name, email, phone, company fields

- `contact-store.js` ΓÇö In-memory ClientStore for CRUD operations

- `routes.js` ΓÇö Route handlers for Client API endpoints

- `seed.js` ΓÇö Seed data with sample Client records

- `test.js` ΓÇö Unit tests for Client and ClientStore



## Usage



```bash

node src/app.js    # Run the application

node src/test.js   # Run tests

```

```



src/app.js

```javascript

const { ClientStore } = require('./contact-store');

const { createRoutes } = require('./routes');

const { loadSeedData } = require('./seed');



// Initialize store and load seed data

const store = new ClientStore();

const count = loadSeedData(store);



// Create route handlers

const routes = createRoutes(store);



// Smoke test: verify the Client system works

const allClients = routes.listClients();

if (allClients.status !== 200) {

  console.error('Failed to list clients');

  process.exit(1);

}



const alice = routes.getClient('alice@example.com');

if (alice.status !== 200 || alice.body.name !== 'Alice Johnson') {

  console.error('Failed to get client');

  process.exit(1);

}



console.log(`Client system initialized with ${count} records`);

console.log(`All ${allClients.body.length} clients loaded successfully`);

process.exit(0);

```



src/contact-store.js

```javascript

const { Client } = require('./contact');



class ClientStore {

  constructor() {

    this.clients = [];

  }



  add(data) {

    const client = new Client(data.name, data.email, data.phone, data.company);

    this.clients.push(client);

    return client;

  }



  findByEmail(email) {

    return this.clients.find((c) => c.email === email) || null;

  }



  findByCompany(company) {

    return this.clients.filter((c) => c.company === company);

  }



  getAll() {

    return this.clients.map((c) => c.toJSON());

  }



  remove(email) {

    const index = this.clients.findIndex((c) => c.email === email);

    if (index === -1) return false;

    this.clients.splice(index, 1);

    return true;

  }



  count() {

    return this.clients.length;

  }

}



module.exports = { ClientStore };

```



src/contact.js

```javascript

class Client {

  constructor(name, email, phone, company) {

    this.name = name;

    this.email = email;

    this.phone = phone;

    this.company = company;

    this.createdAt = new Date().toISOString();

  }



  toJSON() {

    return {

      name: this.name,

      email: this.email,

      phone: this.phone,

      company: this.company,

      createdAt: this.createdAt,

    };

  }



  getDisplayName() {

    return this.company ? `${this.name} (${this.company})` : this.name;

  }

}



module.exports = { Client };

```



src/routes.js

```javascript

const { ClientStore } = require('./contact-store');



function createRoutes(store) {

  return {

    listClients() {

      return { status: 200, body: store.getAll() };

    },



    getClient(email) {

      const client = store.findByEmail(email);

      if (!client) return { status: 404, body: { error: 'Client not found' } };

      return { status: 200, body: client.toJSON() };

    },



    createClient(data) {

      if (!data.name || !data.email) {

        return { status: 400, body: { error: 'Name and email are required' } };

      }

      const existing = store.findByEmail(data.email);

      if (existing) {

        return { status: 409, body: { error: 'Client already exists' } };

      }

      const client = store.add(data);

      return { status: 201, body: client.toJSON() };

    },



    deleteClient(email) {

      const removed = store.remove(email);

      if (!removed) return { status: 404, body: { error: 'Client not found' }
};

      return { status: 204, body: null };

    },

  };

}



module.exports = { createRoutes };

```



src/seed.js

```javascript

// Seed data for initial Client records

const seedClients = [

  { name: 'Alice Johnson', email: 'alice@example.com', phone: '555-0101',
company: 'Acme Corp' },

  { name: 'Bob Smith', email: 'bob@example.com', phone: '555-0102', company:
'Acme Corp' },

  { name: 'Carol Davis', email: 'carol@example.com', phone: '555-0103',
company: 'Globex Inc' },

  { name: 'Dan Wilson', email: 'dan@example.com', phone: '555-0104', company:
null },

  { name: 'Eve Brown', email: 'eve@example.com', phone: '555-0105', company:
'Initech' },

];



function loadSeedData(store) {

  for (const client of seedClients) {

    store.add(client);

  }

  return store.count();

}



module.exports = { seedClients, loadSeedData };

```



src/test.js

```javascript

const { Client } = require('./contact');

const { ClientStore } = require('./contact-store');



let passed = 0;

let failed = 0;



function test(name, fn) {

  try {

    fn();

    passed++;

  } catch (e) {

    failed++;

    console.error(`FAIL: ${name} -- ${e.message}`);

  }

}



test('Client constructor sets fields', () => {

  const c = new Client('Alice', 'alice@test.com', '555-0001', 'Acme');

  if (c.name !== 'Alice') throw new Error('name mismatch');

  if (c.email !== 'alice@test.com') throw new Error('email mismatch');

});



test('Client toJSON returns object', () => {

  const c = new Client('Bob', 'bob@test.com', '555-0002', null);

  const json = c.toJSON();

  if (typeof json !== 'object') throw new Error('not an object');

  if (json.name !== 'Bob') throw new Error('name mismatch');

});



test('Client getDisplayName with company', () => {

  const c = new Client('Alice', 'a@t.com', '555', 'Acme');

  if (c.getDisplayName() !== 'Alice (Acme)') throw new Error('wrong display
name');

});



test('Client getDisplayName without company', () => {

  const c = new Client('Bob', 'b@t.com', '555', null);

  if (c.getDisplayName() !== 'Bob') throw new Error('wrong display name');

});



test('ClientStore add and count', () => {

  const store = new ClientStore();

  store.add({ name: 'Test', email: 'test@t.com', phone: '555', company: null
});

  if (store.count() !== 1) throw new Error('count mismatch');

});



test('ClientStore findByEmail', () => {

  const store = new ClientStore();

  store.add({ name: 'Test', email: 'test@t.com', phone: '555', company: null
});

  const found = store.findByEmail('test@t.com');

  if (!found) throw new Error('not found');

  if (found.name !== 'Test') throw new Error('name mismatch');

});



test('ClientStore findByCompany', () => {

  const store = new ClientStore();

  store.add({ name: 'A', email: 'a@t.com', phone: '1', company: 'X' });

  store.add({ name: 'B', email: 'b@t.com', phone: '2', company: 'X' });

  store.add({ name: 'C', email: 'c@t.com', phone: '3', company: 'Y' });

  const results = store.findByCompany('X');

  if (results.length !== 2) throw new Error('count mismatch');

});



test('ClientStore remove', () => {

  const store = new ClientStore();

  store.add({ name: 'Test', email: 'test@t.com', phone: '555', company: null
});

  if (!store.remove('test@t.com')) throw new Error('remove returned false');

  if (store.count() !== 0) throw new Error('count should be 0');

});



console.log(`\nResults: ${passed}/${passed + failed} passed`);

if (failed > 0) {

  console.log(`VERDICT: FAIL (${failed} failed)`);

  process.exit(1);

} else {

  console.log('VERDICT: PASS');

  process.exit(0);

}

```

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