--- /dev/null
+package buildutil_test
+
+import (
+ "flag"
+ "go/build"
+ "reflect"
+ "testing"
+
+ "golang.org/x/tools/go/buildutil"
+)
+
+func TestTags(t *testing.T) {
+ f := flag.NewFlagSet("TestTags", flag.PanicOnError)
+ var ctxt build.Context
+ f.Var((*buildutil.TagsFlag)(&ctxt.BuildTags), "tags", buildutil.TagsFlagDoc)
+ f.Parse([]string{"-tags", ` 'one'"two" 'three "four"'`, "rest"})
+
+ // BuildTags
+ want := []string{"one", "two", "three \"four\""}
+ if !reflect.DeepEqual(ctxt.BuildTags, want) {
+ t.Errorf("BuildTags = %q, want %q", ctxt.BuildTags, want)
+ }
+
+ // Args()
+ if want := []string{"rest"}; !reflect.DeepEqual(f.Args(), want) {
+ t.Errorf("f.Args() = %q, want %q", f.Args(), want)
+ }
+}