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Source file src/go/ast/ast_test.go

Documentation: go/ast

     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  }
    51  

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