What methods and tools can be used for local testing and debugging of applications during development?

For local testing and debugging of Go applications during development, the following methods and tools can be used:

• go test — a built-in tool for running unit tests. It allows writing and executing tests within packages.

• Delve (dlv) — a debugger for Go that enables setting breakpoints, stepping through code, and viewing variable values.

• Logging — adding logs to the code to track the program's behavior.

• IDE integration — many IDEs (such as GoLand, VSCode with the Go plugin) support running tests and debugging with Delve directly from the interface.

Example of running tests:

go test ./... -v

Example of starting a debug session with Delve:

dlv debug ./myapp

Thus, the combination of go test and Delve provides effective local testing and debugging.