bmp-string_test.go

Documentation: golang.org/x/crypto/pkcs12

     1  // Copyright 2015 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 pkcs12
     6  
     7  import (
     8  	"bytes"
     9  	"encoding/hex"
    10  	"testing"
    11  )
    12  
    13  var bmpStringTests = []struct {
    14  	in          string
    15  	expectedHex string
    16  	shouldFail  bool
    17  }{
    18  	{"", "0000", false},
    19  	// Example from https://tools.ietf.org/html/rfc7292#appendix-B.
    20  	{"Beavis", "0042006500610076006900730000", false},
    21  	// Some characters from the "Letterlike Symbols Unicode block".
    22  	{"\u2115 - Double-struck N", "21150020002d00200044006f00750062006c0065002d00730074007200750063006b0020004e0000", false},
    23  	// any character outside the BMP should trigger an error.
    24  	{"\U0001f000 East wind (Mahjong)", "", true},
    25  }
    26  
    27  func TestBMPString(t *testing.T) {
    28  	for i, test := range bmpStringTests {
    29  		expected, err := hex.DecodeString(test.expectedHex)
    30  		if err != nil {
    31  			t.Fatalf("#%d: failed to decode expectation", i)
    32  		}
    33  
    34  		out, err := bmpString(test.in)
    35  		if err == nil && test.shouldFail {
    36  			t.Errorf("#%d: expected to fail, but produced %x", i, out)
    37  			continue
    38  		}
    39  
    40  		if err != nil && !test.shouldFail {
    41  			t.Errorf("#%d: failed unexpectedly: %s", i, err)
    42  			continue
    43  		}
    44  
    45  		if !test.shouldFail {
    46  			if !bytes.Equal(out, expected) {
    47  				t.Errorf("#%d: expected %s, got %x", i, test.expectedHex, out)
    48  				continue
    49  			}
    50  
    51  			roundTrip, err := decodeBMPString(out)
    52  			if err != nil {
    53  				t.Errorf("#%d: decoding output gave an error: %s", i, err)
    54  				continue
    55  			}
    56  
    57  			if roundTrip != test.in {
    58  				t.Errorf("#%d: decoding output resulted in %q, but it should have been %q", i, roundTrip, test.in)
    59  				continue
    60  			}
    61  		}
    62  	}
    63  }
    64
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