🧪 testing improvement: add tests for createDAPClient

[anusornc]

🎯 What: Added missing unit tests for the createDAPClient factory function in test/dap-client.test.ts.

📊 Coverage: Covered creating the client with the provided config, ensuring the factory function correctly initializes the DAPClient instance, maps over the necessary config attributes, and properly sets default values.

✨ Result: Improved test coverage for src/client/dap-client.ts, addressing the gap where createDAPClient had no explicit tests.

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PR created automatically by Jules for task 6064820282345168533 started by @anusornc

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[gemini-code-assist]

Code Review

This pull request introduces unit tests for the createDAPClient function in test/dap-client.test.ts to verify that it correctly instantiates a DAPClient with default and overridden configuration values. The review feedback suggests avoiding the use of as any when accessing private configuration properties to maintain TypeScript type safety, recommending a safer type casting approach instead.

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[gemini-code-assist]

Using as any to access private properties disables all TypeScript type checking for the rest of the expression. If DAPClientConfig properties are renamed or refactored in the future, this test will compile successfully but might fail at runtime or assert incorrect properties silently.

By casting to unknown and then to an object with a typed config property, we preserve type safety for the configuration fields.

    const clientConfig = (client as unknown as { config: DAPClientConfig }).config;
    expect(clientConfig.relayUrl).toBe('ws://localhost:3000');
    expect(clientConfig.reconnectIntervalMs).toBe(5000); // Check default values
    expect(clientConfig.requestTimeoutMs).toBe(60000); // Check default values

[gemini-code-assist]

Avoid using as any here to maintain type safety for the configuration properties during future refactoring.

    const clientConfig = (client as unknown as { config: DAPClientConfig }).config;
    expect(clientConfig.reconnectIntervalMs).toBe(1000);
    expect(clientConfig.requestTimeoutMs).toBe(10000);