libgo/go/go/ast/ast_test.go

   1 // Copyright 2012 The Go Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style
   3 // license that can be found in the LICENSE file.
   4
   5 package ast
   6
   7 import (
   8         "testing"
   9 )
  10
  11 var comments = []struct {
  12         list []string
  13         text string
  14 }{
  15         {[]string{"//"}, ""},
  16         {[]string{"//   "}, ""},
  17         {[]string{"//", "//", "//   "}, ""},
  18         {[]string{"// foo   "}, "foo\n"},
  19         {[]string{"//", "//", "// foo"}, "foo\n"},
  20         {[]string{"// foo  bar  "}, "foo  bar\n"},
  21         {[]string{"// foo", "// bar"}, "foo\nbar\n"},
  22         {[]string{"// foo", "//", "//", "//", "// bar"}, "foo\n\nbar\n"},
  23         {[]string{"// foo", "/* bar */"}, "foo\n bar\n"},
  24         {[]string{"//", "//", "//", "// foo", "//", "//", "//"}, "foo\n"},
  25
  26         {[]string{"/**/"}, ""},
  27         {[]string{"/*   */"}, ""},
  28         {[]string{"/**/", "/**/", "/*   */"}, ""},
  29         {[]string{"/* Foo   */"}, " Foo\n"},
  30         {[]string{"/* Foo  Bar  */"}, " Foo  Bar\n"},
  31         {[]string{"/* Foo*/", "/* Bar*/"}, " Foo\n Bar\n"},
  32         {[]string{"/* Foo*/", "/**/", "/**/", "/**/", "// Bar"}, " Foo\n\nBar\n"},
  33         {[]string{"/* Foo*/", "/*\n*/", "//", "/*\n*/", "// Bar"}, " Foo\n\nBar\n"},
  34         {[]string{"/* Foo*/", "// Bar"}, " Foo\nBar\n"},
  35         {[]string{"/* Foo\n Bar*/"}, " Foo\n Bar\n"},
  36 }
  37
  38 func TestCommentText(t *testing.T) {
  39         for i, c := range comments {
  40                 list := make([]*Comment, len(c.list))
  41                 for i, s := range c.list {
  42                         list[i] = &Comment{Text: s}
  43                 }
  44
  45                 text := (&CommentGroup{list}).Text()
  46                 if text != c.text {
  47                         t.Errorf("case %d: got %q; expected %q", i, text, c.text)
  48                 }
  49         }
  50 }