garble/testdata/script/test.txtar

# build the test binary
exec garble test -c
! stdout 'PASS'
binsubstr bar.test$exe 'TestFoo' 'TestSeparateFoo'
! binsubstr bar.test$exe 'LocalFoo|ImportedVar|OriginalFuncName'

# run the tests; OriginalFuncName should be obfuscated
exec ./bar.test -test.v
stdout 'PASS.*TestFoo'
stdout 'PASS.*TestSeparateFoo'
stdout 'package bar, func name:'
stdout 'package bar_test, func name:'
! stdout 'OriginalFuncName'

[short] stop # no need to verify this with -short

# Also check that many packages test fine, including a main package and multiple
# test packages.
#
# Exporttest is special, as it:
#
#  * uses an external test package
#  * exports unexported APIs via export_test.go
#  * is imported by another package, also tested via "./..."
#
# The combination of those used to result in "refusing to list non-dependency
# package" errors, which we've currently worked around.
exec garble test -v ./...
stdout 'ok\s+test/bar\s'
stdout 'PASS.*TestFoo'
stdout 'PASS.*TestMain'
stdout 'PASS.*TestSeparateFoo'
stdout 'SKIP.*TestWithFlag'
stdout 'package bar, func name:'
stdout 'package bar_test, func name:'
! stdout 'OriginalFuncName'
stdout '\?\s+test/bar/somemain\s'
stdout 'ok\s+test/bar/somemaintest\s'
stdout 'ok\s+test/bar/sometest\s'
stdout 'ok\s+test/bar/exporttest\s'

# verify that non-build flags are kept
exec garble test -withflag -v
stdout 'PASS.*TestWithFlag'

# verify with regular cmd/go; OriginalFuncName should appear
go test -v
stdout 'PASS.*TestFoo'
stdout 'PASS.*TestSeparateFoo'
stdout 'package bar, func name: test/bar\.OriginalFuncName'
stdout 'package bar_test, func name: test/bar\.OriginalFuncName'
-- go.mod --
module test/bar

go 1.23
-- bar.go --
package bar

import "runtime"

import _ "test/bar/exporttest"

func LocalFoo() string { return "Foo" }

var ImportedVar = "imported var value"

// OriginalFuncName returns its own func name.
func OriginalFuncName() string {
	pc, _, _, _ := runtime.Caller(0)
	fn := runtime.FuncForPC(pc)
	return fn.Name()
}
-- bar_test.go --
package bar

import "testing"

func TestFoo(t *testing.T) {
	t.Log(ImportedVar)
	if LocalFoo() != "Foo" {
		t.FailNow()
	}
	t.Logf("package bar, func name: %s", OriginalFuncName())
}
-- bar_separate_test.go --
package bar_test

import (
	"flag"
	"testing"

	"test/bar"
)

var withFlag = flag.Bool("withflag", false, "")

func TestSeparateFoo(t *testing.T) {
	t.Log(bar.ImportedVar)
	if bar.LocalFoo() != "Foo" {
		t.FailNow()
	}
	t.Logf("package bar_test, func name: %s", bar.OriginalFuncName())
}

func TestWithFlag(t *testing.T) {
	if !*withFlag {
		t.Skip()
	}
}
-- main_test.go --
package bar

import (
	"os"
	"testing"
)

func TestMain(m *testing.M) {
	os.Exit(m.Run())
}
-- somemain/main.go --
package main

func main() {}
-- somemaintest/main.go --
package main

func main() {}
-- somemaintest/main_test.go --
package main

import "testing"

func TestMain(t *testing.T) {}
-- sometest/foo_test.go --
package sometest

import "testing"

func TestFoo(t *testing.T) {}
-- exporttest/foo.go --
package exporttest

type foo int
-- exporttest/export_test.go --
package exporttest

type Foo = foo
-- exporttest/foo_test.go --
package exporttest_test

import "testing"

func TestFoo(t *testing.T) {}