Testing
How to Test Go CLI Tools With Table Driven Tests Properly
Test Go command line tools with table driven tests: a testable run function, in-memory streams, subtests, temp directories and a real binary test.
7 min read
Tag
go
5 posts
Go
Go Build Error Exec Format Error When Cross Compiling
Fix exec format error with Go binaries: GOOS and GOARCH mismatches, building on Mac for Linux, Docker platform flags, and how to check a binary with file.
6 min read
Go
Go Exec Executable File Not Found in PATH Error Fully
Fix the Go error exec executable file not found in PATH: why exec.Command needs the program on PATH, LookPath, absolute paths, containers and services.
6 min read
Go
Cobra vs urfave cli vs Kong for Go CLIs and Which to Pick
Compare Cobra, urfave/cli and Kong for Go command line tools: how each declares commands, flags, help and completions, and which fits which project.
6 min read
Go
Why Go Binaries Are Large and How to Shrink Them Explained
Why Go binaries are large and how to shrink them: ldflags -s -w, trimpath, UPX trade-offs, dropping heavy dependencies and measuring what takes space.
6 min read