/usr/share/gocode/src/github.com/jacobsa/crypto/common/xor_test.go is in golang-github-jacobsa-crypto-dev 0.0~git20161111.0.293ce0c-3.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 | // Copyright 2012 Aaron Jacobs. All Rights Reserved.
// Author: aaronjjacobs@gmail.com (Aaron Jacobs)
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package common_test
import (
"testing"
"github.com/jacobsa/crypto/common"
. "github.com/jacobsa/oglematchers"
. "github.com/jacobsa/ogletest"
)
func TestXor(t *testing.T) { RunTests(t) }
////////////////////////////////////////////////////////////////////////
// Helpers
////////////////////////////////////////////////////////////////////////
type XorTest struct{}
func init() { RegisterTestSuite(&XorTest{}) }
func xorWithResult(a []byte, b []byte) (result []byte) {
result = make([]byte, len(a))
common.Xor(result, a, b)
return
}
////////////////////////////////////////////////////////////////////////
// Tests
////////////////////////////////////////////////////////////////////////
func (t *XorTest) LengthsNotEqual() {
a := []byte{0x00}
b := []byte{0x00, 0x11}
f := func() { xorWithResult(a, b) }
ExpectThat(f, Panics(HasSubstr("length")))
}
func (t *XorTest) NilBuffers() {
a := []byte(nil)
b := []byte(nil)
result := xorWithResult(a, b)
AssertNe(nil, result)
ExpectThat(result, DeepEquals([]byte{}))
}
func (t *XorTest) EmptyBuffers() {
a := []byte{}
b := []byte{}
result := xorWithResult(a, b)
AssertNe(nil, result)
ExpectThat(result, DeepEquals([]byte{}))
}
func (t *XorTest) OneByteBuffers() {
var a, b, expected []byte
a = []byte{fromBinary("00000000")}
b = []byte{fromBinary("00000000")}
expected = []byte{fromBinary("00000000")}
ExpectThat(xorWithResult(a, b), DeepEquals(expected))
a = []byte{fromBinary("11111111")}
b = []byte{fromBinary("11111111")}
expected = []byte{fromBinary("00000000")}
ExpectThat(xorWithResult(a, b), DeepEquals(expected))
a = []byte{fromBinary("11111111")}
b = []byte{fromBinary("00000000")}
expected = []byte{fromBinary("11111111")}
ExpectThat(xorWithResult(a, b), DeepEquals(expected))
a = []byte{fromBinary("00000000")}
b = []byte{fromBinary("11111111")}
expected = []byte{fromBinary("11111111")}
ExpectThat(xorWithResult(a, b), DeepEquals(expected))
a = []byte{fromBinary("10100100")}
b = []byte{fromBinary("11111111")}
expected = []byte{fromBinary("01011011")}
ExpectThat(xorWithResult(a, b), DeepEquals(expected))
}
func (t *XorTest) MultiByteBuffers() {
var a, b, expected []byte
a = []byte{fromBinary("00000000"), fromBinary("00000000")}
b = []byte{fromBinary("00000000"), fromBinary("00000000")}
expected = []byte{fromBinary("00000000"), fromBinary("00000000")}
ExpectThat(xorWithResult(a, b), DeepEquals(expected))
a = []byte{fromBinary("11111111"), fromBinary("11111111")}
b = []byte{fromBinary("11111111"), fromBinary("11111111")}
expected = []byte{fromBinary("00000000"), fromBinary("00000000")}
ExpectThat(xorWithResult(a, b), DeepEquals(expected))
a = []byte{fromBinary("00000000"), fromBinary("11111111")}
b = []byte{fromBinary("11111111"), fromBinary("00000000")}
expected = []byte{fromBinary("11111111"), fromBinary("11111111")}
ExpectThat(xorWithResult(a, b), DeepEquals(expected))
}
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