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-rw-r--r--src/pkg/go/printer/performance_test.go58
1 files changed, 0 insertions, 58 deletions
diff --git a/src/pkg/go/printer/performance_test.go b/src/pkg/go/printer/performance_test.go
deleted file mode 100644
index 5b29affcb..000000000
--- a/src/pkg/go/printer/performance_test.go
+++ /dev/null
@@ -1,58 +0,0 @@
-// Copyright 2009 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// This file implements a simple printer performance benchmark:
-// go test -bench=BenchmarkPrint
-
-package printer
-
-import (
- "bytes"
- "go/ast"
- "go/parser"
- "io"
- "io/ioutil"
- "log"
- "testing"
-)
-
-var testfile *ast.File
-
-func testprint(out io.Writer, file *ast.File) {
- if err := (&Config{TabIndent | UseSpaces, 8, 0}).Fprint(out, fset, file); err != nil {
- log.Fatalf("print error: %s", err)
- }
-}
-
-// cannot initialize in init because (printer) Fprint launches goroutines.
-func initialize() {
- const filename = "testdata/parser.go"
-
- src, err := ioutil.ReadFile(filename)
- if err != nil {
- log.Fatalf("%s", err)
- }
-
- file, err := parser.ParseFile(fset, filename, src, parser.ParseComments)
- if err != nil {
- log.Fatalf("%s", err)
- }
-
- var buf bytes.Buffer
- testprint(&buf, file)
- if !bytes.Equal(buf.Bytes(), src) {
- log.Fatalf("print error: %s not idempotent", filename)
- }
-
- testfile = file
-}
-
-func BenchmarkPrint(b *testing.B) {
- if testfile == nil {
- initialize()
- }
- for i := 0; i < b.N; i++ {
- testprint(ioutil.Discard, testfile)
- }
-}