Handle failure of runtime.Caller

[lazysegtree]

Issue - #2

[lazysegtree]

Testcase run

➜  ~/Workspace/kuknitin/assert-go git:(main) [9:42:05] git log --oneline | head -n 2
152c645 Handle failure of runtime.Caller
1e10074 docs(readme): add personal perspective about assertions in Go
➜  ~/Workspace/kuknitin/assert-go git:(main) [9:42:15] go test
PASS
ok  	github.com/nikoksr/assert-go	0.263s
➜  ~/Workspace/kuknitin/assert-go git:(main) [9:42:22]

[lazysegtree]

Testing the failure scenario code flow by locally updating the skip value to 10. Thats the only way I have for now to make runtime.Caller() fail deterministically

➜  ~/Workspace/kuknitin/assert-go git:(main) ✗ [9:54:17] cat assert.go | grep -n runtime.Caller
42:	_, file, line, ok := runtime.Caller(10) //nolint:mnd // Explained in comment
➜  ~/Workspace/kuknitin/assert-go git:(main) ✗ [9:54:22]

# Using locally changed module
(.venv) ➜  ~/Workspace/kuknitin/shared/Misc/Go/Learning/basics/assert git:(main) ✗ [9:50:50] go mod edit -replace "github.com/nikoksr/assert-go"=/Users/kuknitin/Workspace/kuknitin/assert-go

(.venv) ➜  ~/Workspace/kuknitin/shared/Misc/Go/Learning/basics/assert git:(main) ✗ [10:02:22] go run main.go     
panic: Assertion failed (Runtime caller info is not available)
        Message: Failing assertion


goroutine 1 [running]:
github.com/nikoksr/assert-go.assert(0x68?, {0x104ac80be, 0x11}, {0x0, 0x0, 0x0})
        /Users/kuknitin/Workspace/kuknitin/assert-go/assert.go:46 +0x32c
github.com/nikoksr/assert-go.Assert(...)
        /Users/kuknitin/Workspace/kuknitin/assert-go/assert.go:30
main.main()
        /Users/kuknitin/Workspace/kuknitin/shared/Misc/Go/Learning/basics/assert/main.go:6 +0x3c
exit status 2
(.venv) ➜  ~/Workspace/kuknitin/shared/Misc/Go/Learning/basics/assert git:(main) ✗ [10:02:24] 

main.go

package main 
import (
	"github.com/nikoksr/assert-go"
)
func main() {
	assert.Assert(false, "Failing assertion")
}