cpp/core/tests/src/qrcode/decoder/FormatInformationTest.cpp

   1 /*
   2  *  FormatInformationTest.cpp
   3  *  zxing
   4  *
   5  *  Created by Christian Brunschen on 19/05/2008.
   6  *  Copyright 2008 ZXing authors All rights reserved.
   7  *
   8  * Licensed under the Apache License, Version 2.0 (the "License");
   9  * you may not use this file except in compliance with the License.
  10  * You may obtain a copy of the License at
  11  *
  12  *      http://www.apache.org/licenses/LICENSE-2.0
  13  *
  14  * Unless required by applicable law or agreed to in writing, software
  15  * distributed under the License is distributed on an "AS IS" BASIS,
  16  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  17  * See the License for the specific language governing permissions and
  18  * limitations under the License.
  19  */
  20
  21 #include "FormatInformationTest.h"
  22
  23 #include "ErrorCorrectionLevelTest.h"
  24 #include "../../../../src/ReaderException.h"
  25 #include "../../../../src/qrcode/decoder/FormatInformation.h"
  26 #include "../../../../src/qrcode/decoder/ErrorCorrectionLevel.h"
  27
  28 namespace qrcode {
  29   namespace decoder {
  30
  31     CPPUNIT_TEST_SUITE_REGISTRATION(FormatInformationTest);
  32
  33     static void assertEquals(Ref<FormatInformation> a,
  34                              Ref<FormatInformation> b) {
  35       FormatInformation &aa = *a;
  36       FormatInformation &bb = *b;
  37       CPPUNIT_ASSERT_EQUAL(aa, bb);
  38     }
  39
  40     void FormatInformationTest::testBitsDiffering() {
  41       CPPUNIT_ASSERT_EQUAL(0, FormatInformation::numBitsDiffering(1, 1));
  42       CPPUNIT_ASSERT_EQUAL(1, FormatInformation::numBitsDiffering(0, 2));
  43       CPPUNIT_ASSERT_EQUAL(2, FormatInformation::numBitsDiffering(1, 2));
  44       CPPUNIT_ASSERT_EQUAL(32, FormatInformation::numBitsDiffering(0xffffffff,
  45                                                                    0));
  46     }
  47
  48     void FormatInformationTest::testDecode() {
  49       // Normal case
  50       Ref<FormatInformation> expected =
  51       FormatInformation::decodeFormatInformation(0x2BED ^ 0x5412);
  52       CPPUNIT_ASSERT_EQUAL((unsigned char) 0x07, expected->getDataMask());
  53       CPPUNIT_ASSERT_EQUAL(&ErrorCorrectionLevel::Q,
  54                            &expected->getErrorCorrectionLevel());
  55       // where the code forgot the mask!
  56       assertEquals(expected,
  57                    FormatInformation::decodeFormatInformation(0x2BED));
  58
  59       // 1,2,3,4 bits difference
  60       assertEquals(expected,
  61                    FormatInformation::decodeFormatInformation(0x2BEF ^ 0x5412));
  62       assertEquals(expected,
  63                    FormatInformation::decodeFormatInformation(0x2BEE ^ 0x5412));
  64       assertEquals(expected,
  65                    FormatInformation::decodeFormatInformation(0x2BEA ^ 0x5412));
  66       CPPUNIT_ASSERT_EQUAL(true, FormatInformation::
  67                            decodeFormatInformation(0x2BE2 ^ 0x5412) == 0);
  68     }
  69   }
  70 }