Source file src/cmd/internal/edit/edit_test.go

     1  // Copyright 2017 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 edit
     6  
     7  import "testing"
     8  
     9  func TestEdit(t *testing.T) {
    10  	b := NewBuffer([]byte("0123456789"))
    11  	b.Insert(8, ",7½,")
    12  	b.Replace(9, 10, "the-end")
    13  	b.Insert(10, "!")
    14  	b.Insert(4, "3.14,")
    15  	b.Insert(4, "π,")
    16  	b.Insert(4, "3.15,")
    17  	b.Replace(3, 4, "three,")
    18  	want := "012three,3.14,π,3.15,4567,7½,8the-end!"
    19  
    20  	s := b.String()
    21  	if s != want {
    22  		t.Errorf("b.String() = %q, want %q", s, want)
    23  	}
    24  	sb := b.Bytes()
    25  	if string(sb) != want {
    26  		t.Errorf("b.Bytes() = %q, want %q", sb, want)
    27  	}
    28  }
    29  

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