cmd/go: dependencies not included in buildinfo for tests #76926
Description
Go version
go version go1.25.5 linux/amd64
Output of go env in your module/workspace:
AR='ar'
CC='gcc'
CGO_CFLAGS='-O2 -g'
CGO_CPPFLAGS=''
CGO_CXXFLAGS='-O2 -g'
CGO_ENABLED='1'
CGO_FFLAGS='-O2 -g'
CGO_LDFLAGS='-O2 -g'
CXX='g++'
GCCGO='gccgo'
GO111MODULE=''
GOAMD64='v1'
GOARCH='amd64'
GOAUTH='netrc'
GOBIN=''
GOCACHE='/home/peter/.cache/go-build'
GOCACHEPROG=''
GODEBUG=''
GOENV='/home/peter/.config/go/env'
GOEXE=''
GOEXPERIMENT=''
GOFIPS140='off'
GOFLAGS=''
GOGCCFLAGS='-fPIC -m64 -pthread -Wl,--no-gc-sections -fmessage-length=0 -ffile-prefix-map=/tmp/go-build2813287053=/tmp/go-build -gno-record-gcc-switches'
GOHOSTARCH='amd64'
GOHOSTOS='linux'
GOINSECURE=''
GOMOD='/home/peter/git/volary/go.mod'
GOMODCACHE='/home/peter/go/pkg/mod'
GONOPROXY=''
GONOSUMDB=''
GOOS='linux'
GOPATH='/home/peter/go'
GOPRIVATE=''
GOPROXY='https://proxy.golang.org,direct'
GOROOT='/home/peter/go/pkg/mod/golang.org/toolchain@v0.0.1-go1.25.5.linux-amd64'
GOSUMDB='sum.golang.org'
GOTELEMETRY='local'
GOTELEMETRYDIR='/home/peter/.config/go/telemetry'
GOTMPDIR=''
GOTOOLCHAIN='auto'
GOTOOLDIR='/home/peter/go/pkg/mod/golang.org/toolchain@v0.0.1-go1.25.5.linux-amd64/pkg/tool/linux_amd64'
GOVCS=''
GOVERSION='go1.25.5'
GOWORK=''
PKG_CONFIG='pkg-config'What did you do?
Wrote a test that uses a library which interrogates deps in the debug build info to check versions. A minimal example (with a simpler third-party setup for clarity, but the same problem is exhibited):
package exec_test
import (
"runtime/debug"
"testing"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
)
func TestBuildInfo(t *testing.T) {
bi, ok := debug.ReadBuildInfo()
require.True(t, ok)
assert.Equal(t, "github.com/volary-ai/volary/common/exec.test", bi.Path)
assert.Equal(t, "github.com/volary-ai/volary", bi.Main.Path)
assert.NotEmpty(t, bi.Deps)
}
What did you see happen?
Error Trace: /home/peter/git/volary/common/exec/exec_test.go:16
Error: Should NOT be empty, but was []
i.e. the BuildInfo object has an empty slice for Deps. Path and Main are populated as expected though.
What did you expect to see?
That it was not empty, that Deps was populated with the set of modules that are dependencies of the test (in this case at least github.com/stretchr/testify should be there).