libgo: Update to Go 1.0.3.

[pf3gnuchains/gcc-fork.git] / libgo / go / go / printer / printer_test.go

diff --git a/libgo/go/go/printer/printer_test.go b/libgo/go/go/printer/printer_test.go
index 497d671..ab9e9b2 100644 (file)
--- a/libgo/go/go/printer/printer_test.go
+++ b/libgo/go/go/printer/printer_test.go
@@ -385,6 +385,35 @@ func (t *t) foo(a, b, c int) int {
        }
 }
 
+// TestFuncType tests that an ast.FuncType with a nil Params field
+// can be printed (per go/ast specification). Test case for issue 3870.
+func TestFuncType(t *testing.T) {
+       src := &ast.File{
+               Name: &ast.Ident{Name: "p"},
+               Decls: []ast.Decl{
+                       &ast.FuncDecl{
+                               Name: &ast.Ident{Name: "f"},
+                               Type: &ast.FuncType{},
+                       },
+               },
+       }
+
+       var buf bytes.Buffer
+       if err := Fprint(&buf, fset, src); err != nil {
+               t.Fatal(err)
+       }
+       got := buf.String()
+
+       const want = `package p
+
+func f()
+`
+
+       if got != want {
+               t.Fatalf("got:\n%s\nwant:\n%s\n", got, want)
+       }
+}
+
 // TextX is a skeleton test that can be filled in for debugging one-off cases.
 // Do not remove.
 func TestX(t *testing.T) {