Auto-skip failing test when executed in bad GOPATH

staging/src/k8s.io/code-generator/pkg/codegen/helpers/generator_test.go

@@ -29,13 +29,19 @@ import (
 	"os/exec"
 	"path"
 	"path/filepath"
+	"reflect"
+	"strings"
 	"testing"
 )
 
 func TestGenerate(t *testing.T) {
 	if testing.Short() {
 		t.Skip("skipping test in short mode")
 	}
+	currPkg := reflect.TypeOf(empty{}).PkgPath()
+	if !strings.HasPrefix(currPkg, "k8s.io/code-generator") {
+		t.Skipf("skipping test in vendored package %s", currPkg)
+	}
 
 	_ = klogtest.InitKlog(t)
 	klog.SetLogger(ktesting.NewLogger(t, ktesting.NewConfig()))
@@ -73,6 +79,11 @@ func prepareWorkdir(tb testing.TB) (string, string) {
 	} else {
 		sourcedir = path.Join(root, "examples")
 	}
+	if rd, err := filepath.EvalSymlinks(sourcedir); err != nil {
+		tb.Fatal(err)
+	} else {
+		sourcedir = rd
+	}
 	if _, err := os.Stat(sourcedir); err != nil {
 		tb.Fatal(err)
 	}
@@ -129,3 +140,5 @@ func hashdir(dir string) (string, error) {
 	// as hex encoded string
 	return hex.EncodeToString(hash.Sum(nil)), nil
 }
+
+type empty struct{}