github.com/maenmax/kairep@v0.0.0-20210218001208-55bf3df36788/src/golang.org/x/crypto/openpgp/canonical_text_test.go (about)

     1  // Copyright 2011 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 openpgp
     6  
     7  import (
     8  	"bytes"
     9  	"testing"
    10  )
    11  
    12  type recordingHash struct {
    13  	buf *bytes.Buffer
    14  }
    15  
    16  func (r recordingHash) Write(b []byte) (n int, err error) {
    17  	return r.buf.Write(b)
    18  }
    19  
    20  func (r recordingHash) Sum(in []byte) []byte {
    21  	return append(in, r.buf.Bytes()...)
    22  }
    23  
    24  func (r recordingHash) Reset() {
    25  	panic("shouldn't be called")
    26  }
    27  
    28  func (r recordingHash) Size() int {
    29  	panic("shouldn't be called")
    30  }
    31  
    32  func (r recordingHash) BlockSize() int {
    33  	panic("shouldn't be called")
    34  }
    35  
    36  func testCanonicalText(t *testing.T, input, expected string) {
    37  	r := recordingHash{bytes.NewBuffer(nil)}
    38  	c := NewCanonicalTextHash(r)
    39  	c.Write([]byte(input))
    40  	result := c.Sum(nil)
    41  	if expected != string(result) {
    42  		t.Errorf("input: %x got: %x want: %x", input, result, expected)
    43  	}
    44  }
    45  
    46  func TestCanonicalText(t *testing.T) {
    47  	testCanonicalText(t, "foo\n", "foo\r\n")
    48  	testCanonicalText(t, "foo", "foo")
    49  	testCanonicalText(t, "foo\r\n", "foo\r\n")
    50  	testCanonicalText(t, "foo\r\nbar", "foo\r\nbar")
    51  	testCanonicalText(t, "foo\r\nbar\n\n", "foo\r\nbar\r\n\r\n")
    52  }