fxbarcode/pdf417/BC_PDF417HighLevelEncoder_unittest.cpp - pdfium - Git at Google

 // Copyright 2014 PDFium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.

 #include "fxbarcode/pdf417/BC_PDF417HighLevelEncoder.h"

 #include <vector>

 #include "testing/gtest/include/gtest/gtest.h"
 #include "third_party/base/cxx17_backports.h"

 TEST(PDF417HighLevelEncoderTest, EncodeHighLevel) {
   static constexpr struct EncodeHighLevelCase {
     const wchar_t* input;
     const wchar_t* expected;
     int expected_length;
   } kEncodeHighLevelCases[] = {
       // Empty string encodes as empty string.
       {L"", L"", 0},

       // Binary mode with digit.
       {L"\x000b\x000b\x0030", L"\x0385\x000b\x000b\x0030", 4},

       // Text mode.
       {L"xxxxxxXx", L"\x0384\x0341\x02c9\x02c9\x02cd\x02c9", 6},

       // Text mode with punctuation.
       {L"xxxxxx!x", L"\x0384\x0341\x02c9\x02c9\x02cf\x0143", 6},

       // Text mode with mixed submode.
       {L"xxxxxx0x", L"\x0384\x0341\x02c9\x02c9\x02ce\x001b\x02cf", 7},

       // Text mode with mixed submode, and space in alpha submode.
       {L"xxxxxx0X ", L"\x0384\x0341\x02c9\x02c9\x02ce\x001c\x02cc", 7},

       // Text mode to binary mode.
       {L"xxxxxx\x0b", L"\x0384\x0341\x02c9\x02c9\x02cf\x0391\x0385\x000b", 8},

       // 13 consecutive digits triggers numeric encoding.
       {L"0000000000000", L"\x0386\x000f\x00d9\x017b\x000b\x0064", 6},
   };

   for (size_t i = 0; i < pdfium::size(kEncodeHighLevelCases); ++i) {
     const EncodeHighLevelCase& testcase = kEncodeHighLevelCases[i];
     WideStringView input(testcase.input);
     WideString expected(testcase.expected, testcase.expected_length);
     absl::optional<WideString> result =
         CBC_PDF417HighLevelEncoder::EncodeHighLevel(input);
     ASSERT_TRUE(result.has_value());
     EXPECT_EQ(expected, result.value()) << " for case number " << i;
   }
 }

 TEST(PDF417HighLevelEncoderTest, EncodeText) {
   // TODO(tsepez): implement test cases.
 }

 TEST(PDF417HighLevelEncoderTest, EncodeBinary) {
   static constexpr struct EncodeBinaryCase {
     const char* input;
     int offset;
     int count;
     CBC_PDF417HighLevelEncoder::EncodingMode startmode;
     const wchar_t* expected;
     int expected_length;
   } kEncodeBinaryCases[] = {
       // Empty string encodes as empty string.
       {"", 0, 0, CBC_PDF417HighLevelEncoder::EncodingMode::kText, L"", 0},

       // Single digit encodes with a shift-to byte.
       {"x", 0, 1, CBC_PDF417HighLevelEncoder::EncodingMode::kText,
        L"\x0391\x0385x", 3},

       // Fewer than 6 characters encodes as prefix without compaction.
       {"xxxxx", 0, 5, CBC_PDF417HighLevelEncoder::EncodingMode::kText,
        L"\x0385xxxxx", 6},

       // 6 charcters triggers text encoding compaction.
       {"xxxxxx", 0, 6, CBC_PDF417HighLevelEncoder::EncodingMode::kText,
        L"\u039c\u00c9\u031f\u012a\u00d2\u02d0", 6},

       // Same result if initially in numeric compaction mode.
       {"xxxxxx", 0, 6, CBC_PDF417HighLevelEncoder::EncodingMode::kNumeric,
        L"\u039c\u00c9\u031f\u012a\u00d2\u02d0", 6},
   };

   for (size_t i = 0; i < pdfium::size(kEncodeBinaryCases); ++i) {
     const EncodeBinaryCase& testcase = kEncodeBinaryCases[i];
     std::vector<uint8_t> input_array;
     size_t input_length = strlen(testcase.input);
     input_array.resize(input_length);
     for (size_t j = 0; j < input_length; ++j) {
       input_array[j] = testcase.input[j];
     }
     WideString expected(testcase.expected, testcase.expected_length);
     WideString result;
     CBC_PDF417HighLevelEncoder::EncodeBinary(input_array, testcase.offset,
                                              testcase.count, testcase.startmode,
                                              &result);
     EXPECT_EQ(expected, result) << " for case number " << i;
   }
 }

 TEST(PDF417HighLevelEncoderTest, EncodeNumeric) {
   static constexpr struct EncodeNumericCase {
     const wchar_t* input;
     int offset;
     int count;
     const wchar_t* expected;
     int expected_length;
   } kEncodeNumericCases[] = {
       // Empty string encodes as empty string.
       {L"", 0, 0, L"", 0},

       // Single 0 should encode as 10 base-900 == a.
       {L"0", 0, 1, L"\x000a", 1},

       // 800 should encode as 1800 base-900 == 2,0.
       {L"800", 0, 3, L"\x0002\x0000", 2},

       // Test longer strings and sub-strings.
       {L"123456", 0, 6, L"\x0001\x015c\x0100", 3},
       {L"123456", 0, 5, L"\x007c\x02e9", 2},
       {L"123456", 1, 5, L"\x0089\x009c", 2},
       {L"123456", 2, 2, L"\x0086", 1},

       // Up to 44 characters encodes as 15 base-900 words.
       {L"00000000000000000000000000000000000000000000", 0, 44,
        L"\x01b5\x006f\x02cc\x0084\x01bc\x0076\x00b3\x005c\x01f0\x034f\x01e6"
        L"\x0090\x020b\x019b\x0064",
        15},

       // 45 characters should encode as same 15 words followed by one additional
       // word.
       {L"000000000000000000000000000000000000000000000", 0, 45,
        L"\x01b5\x006f\x02cc\x0084\x01bc\x0076\x00b3\x005c\x01f0\x034f\x01e6"
        L"\x0090\x020b\x019b\x0064\x000a",
        16},

       // 44 characters followed by 800 should encode as 15 words followed by
       // 1800 base-900 == 2,0.
       {L"00000000000000000000000000000000000000000000800", 0, 47,
        L"\x01b5\x006f\x02cc\x0084\x01bc\x0076\x00b3\x005c\x01f0\x034f\x01e6"
        L"\x0090\x020b\x019b\x0064\x0002\x0000",
        17},

       // Even longer input.
       {L"10000000000000000000000000000000000000000000000000", 0, 50,
        L"\x01e0\x02f0\x036d\x02ad\x029c\x01ea\x0011\x000b\x02d6\x023c\x0108"
        L"\x02bb\x0023\x02d2\x00c8\x0001\x00d3\x0064",
        18},
   };

   for (size_t i = 0; i < pdfium::size(kEncodeNumericCases); ++i) {
     const EncodeNumericCase& testcase = kEncodeNumericCases[i];
     WideString input(testcase.input);
     WideString expected(testcase.expected, testcase.expected_length);
     WideString result;
     CBC_PDF417HighLevelEncoder::EncodeNumeric(input, testcase.offset,
                                               testcase.count, &result);
     EXPECT_EQ(expected, result) << " for case number " << i;
   }
 }

 TEST(PDF417HighLevelEncoderTest, ConsecutiveDigitCount) {
   static constexpr struct ConsecutiveDigitCase {
     const wchar_t* input;
     int offset;
     int expected_count;
   } kConsecutiveDigitCases[] = {
       // Empty string contains 0 consecutive digits.
       {L"", 0, 0},

       // Single non-digit character contains 0 consecutive digits.
       {L"X", 0, 0},

       // Leading non-digit followed by digits contains 0 consecutive.
       {L"X123", 0, 0},

       // Single digit contains 1 consecutive digit.
       {L"1", 0, 1},

       // Single digit followe by non-digit contains 1 consecutive digit.
       {L"1Z", 0, 1},

       // Test longer strings.
       {L"123FOO45678", 0, 3},

       // Test subtring starting in digits field.
       {L"123FOO45678", 3, 0},

       // Test subtring starting in non-digits field.
       {L"123FOO45678", 3, 0},

       // Test substring starting in digits field following non-digit field.
       {L"123FOO45678", 6, 5},
   };

   for (size_t i = 0; i < pdfium::size(kConsecutiveDigitCases); ++i) {
     const ConsecutiveDigitCase& testcase = kConsecutiveDigitCases[i];
     WideString input(testcase.input);
     int actual_count =
         CBC_PDF417HighLevelEncoder::DetermineConsecutiveDigitCount(
             input, testcase.offset);
     EXPECT_EQ(testcase.expected_count, actual_count)
         << " for case number " << i;
   }
 }

 TEST(PDF417HighLevelEncoderTest, ConsecutiveTextCount) {
   static constexpr struct ConsecutiveTextCase {
     const wchar_t* input;
     int offset;
     int expected_count;
   } kConsecutiveTextCases[] = {
       // Empty string contains 0 consecutive text characters.
       {L"", 0, 0},

       // Single text character is 1 consecutive text characters.
       {L"X", 0, 1},

       // Trailing numbers count as text characters.
       {L"X123", 0, 4},

       // Leading numbers count as text characters.
       {L"123X", 0, 4},

       // Embedded lo-value binary characters terminate text runs.
       {L"ABC\x0001XXXX", 0, 3},

       // Embedded hi-value binary characters terminate text runs.
       {L"ABC\x0100XXXX", 0, 3},

       // Text run still found after indexing past lo-value character.
       {L"ABC\x0001XXXX", 4, 4},

       // Text run still found after indexing past hi-value character.
       {L"ABC\x0100XXXX", 4, 4},

       // Leading hi-value character results in 0 consecutive characters.
       {L"\x0100XXX", 0, 0},

       // Up to 12 numbers count as text.
       {L"123456789012", 0, 12},

       // 13 or more numbers are compresssed using numeric compression, not text.
       {L"1234567890123", 0, 0},

       // Leading Text character doesn't affect the 12 character case.
       {L"X123456789012", 0, 13},

       // Leading Text character doesn't affect the 13 character case.
       {L"X1234567890123", 0, 1},

       // Jumping between numbers and letters works properly.
       {L"XXX121XXX12345678901234", 0, 9},
   };

   for (size_t i = 0; i < pdfium::size(kConsecutiveTextCases); ++i) {
     const ConsecutiveTextCase& testcase = kConsecutiveTextCases[i];
     WideString input(testcase.input);
     int actual_count =
         CBC_PDF417HighLevelEncoder::DetermineConsecutiveTextCount(
             input, testcase.offset);
     EXPECT_EQ(testcase.expected_count, actual_count)
         << " for case number " << i;
   }
 }

 TEST(PDF417HighLevelEncoderTest, ConsecutiveBinaryCount) {
   // TODO(tsepez): implement test cases.
 }
	// Copyright 2014 PDFium Authors. All rights reserved.
	// Use of this source code is governed by a BSD-style license that can be
	// found in the LICENSE file.

	#include "fxbarcode/pdf417/BC_PDF417HighLevelEncoder.h"

	#include <vector>

	#include "testing/gtest/include/gtest/gtest.h"
	#include "third_party/base/cxx17_backports.h"

	TEST(PDF417HighLevelEncoderTest, EncodeHighLevel) {
	static constexpr struct EncodeHighLevelCase {
	const wchar_t* input;
	const wchar_t* expected;
	int expected_length;
	} kEncodeHighLevelCases[] = {
	// Empty string encodes as empty string.
	{L"", L"", 0},

	// Binary mode with digit.
	{L"\x000b\x000b\x0030", L"\x0385\x000b\x000b\x0030", 4},

	// Text mode.
	{L"xxxxxxXx", L"\x0384\x0341\x02c9\x02c9\x02cd\x02c9", 6},

	// Text mode with punctuation.
	{L"xxxxxx!x", L"\x0384\x0341\x02c9\x02c9\x02cf\x0143", 6},

	// Text mode with mixed submode.
	{L"xxxxxx0x", L"\x0384\x0341\x02c9\x02c9\x02ce\x001b\x02cf", 7},

	// Text mode with mixed submode, and space in alpha submode.
	{L"xxxxxx0X ", L"\x0384\x0341\x02c9\x02c9\x02ce\x001c\x02cc", 7},

	// Text mode to binary mode.
	{L"xxxxxx\x0b", L"\x0384\x0341\x02c9\x02c9\x02cf\x0391\x0385\x000b", 8},

	// 13 consecutive digits triggers numeric encoding.
	{L"0000000000000", L"\x0386\x000f\x00d9\x017b\x000b\x0064", 6},
	};

	for (size_t i = 0; i < pdfium::size(kEncodeHighLevelCases); ++i) {
	const EncodeHighLevelCase& testcase = kEncodeHighLevelCases[i];
	WideStringView input(testcase.input);
	WideString expected(testcase.expected, testcase.expected_length);
	absl::optional<WideString> result =
	CBC_PDF417HighLevelEncoder::EncodeHighLevel(input);
	ASSERT_TRUE(result.has_value());
	EXPECT_EQ(expected, result.value()) << " for case number " << i;
	}
	}

	TEST(PDF417HighLevelEncoderTest, EncodeText) {
	// TODO(tsepez): implement test cases.
	}

	TEST(PDF417HighLevelEncoderTest, EncodeBinary) {
	static constexpr struct EncodeBinaryCase {
	const char* input;
	int offset;
	int count;
	CBC_PDF417HighLevelEncoder::EncodingMode startmode;
	const wchar_t* expected;
	int expected_length;
	} kEncodeBinaryCases[] = {
	// Empty string encodes as empty string.
	{"", 0, 0, CBC_PDF417HighLevelEncoder::EncodingMode::kText, L"", 0},

	// Single digit encodes with a shift-to byte.
	{"x", 0, 1, CBC_PDF417HighLevelEncoder::EncodingMode::kText,
	L"\x0391\x0385x", 3},

	// Fewer than 6 characters encodes as prefix without compaction.
	{"xxxxx", 0, 5, CBC_PDF417HighLevelEncoder::EncodingMode::kText,
	L"\x0385xxxxx", 6},

	// 6 charcters triggers text encoding compaction.
	{"xxxxxx", 0, 6, CBC_PDF417HighLevelEncoder::EncodingMode::kText,
	L"\u039c\u00c9\u031f\u012a\u00d2\u02d0", 6},

	// Same result if initially in numeric compaction mode.
	{"xxxxxx", 0, 6, CBC_PDF417HighLevelEncoder::EncodingMode::kNumeric,
	L"\u039c\u00c9\u031f\u012a\u00d2\u02d0", 6},
	};

	for (size_t i = 0; i < pdfium::size(kEncodeBinaryCases); ++i) {
	const EncodeBinaryCase& testcase = kEncodeBinaryCases[i];
	std::vector<uint8_t> input_array;
	size_t input_length = strlen(testcase.input);
	input_array.resize(input_length);
	for (size_t j = 0; j < input_length; ++j) {
	input_array[j] = testcase.input[j];
	}
	WideString expected(testcase.expected, testcase.expected_length);
	WideString result;
	CBC_PDF417HighLevelEncoder::EncodeBinary(input_array, testcase.offset,
	testcase.count, testcase.startmode,
	&result);
	EXPECT_EQ(expected, result) << " for case number " << i;
	}
	}

	TEST(PDF417HighLevelEncoderTest, EncodeNumeric) {
	static constexpr struct EncodeNumericCase {
	const wchar_t* input;
	int offset;
	int count;
	const wchar_t* expected;
	int expected_length;
	} kEncodeNumericCases[] = {
	// Empty string encodes as empty string.
	{L"", 0, 0, L"", 0},

	// Single 0 should encode as 10 base-900 == a.
	{L"0", 0, 1, L"\x000a", 1},

	// 800 should encode as 1800 base-900 == 2,0.
	{L"800", 0, 3, L"\x0002\x0000", 2},

	// Test longer strings and sub-strings.
	{L"123456", 0, 6, L"\x0001\x015c\x0100", 3},
	{L"123456", 0, 5, L"\x007c\x02e9", 2},
	{L"123456", 1, 5, L"\x0089\x009c", 2},
	{L"123456", 2, 2, L"\x0086", 1},

	// Up to 44 characters encodes as 15 base-900 words.
	{L"00000000000000000000000000000000000000000000", 0, 44,
	L"\x01b5\x006f\x02cc\x0084\x01bc\x0076\x00b3\x005c\x01f0\x034f\x01e6"
	L"\x0090\x020b\x019b\x0064",
	15},

	// 45 characters should encode as same 15 words followed by one additional
	// word.
	{L"000000000000000000000000000000000000000000000", 0, 45,
	L"\x01b5\x006f\x02cc\x0084\x01bc\x0076\x00b3\x005c\x01f0\x034f\x01e6"
	L"\x0090\x020b\x019b\x0064\x000a",
	16},

	// 44 characters followed by 800 should encode as 15 words followed by
	// 1800 base-900 == 2,0.
	{L"00000000000000000000000000000000000000000000800", 0, 47,
	L"\x01b5\x006f\x02cc\x0084\x01bc\x0076\x00b3\x005c\x01f0\x034f\x01e6"
	L"\x0090\x020b\x019b\x0064\x0002\x0000",
	17},

	// Even longer input.
	{L"10000000000000000000000000000000000000000000000000", 0, 50,
	L"\x01e0\x02f0\x036d\x02ad\x029c\x01ea\x0011\x000b\x02d6\x023c\x0108"
	L"\x02bb\x0023\x02d2\x00c8\x0001\x00d3\x0064",
	18},
	};

	for (size_t i = 0; i < pdfium::size(kEncodeNumericCases); ++i) {
	const EncodeNumericCase& testcase = kEncodeNumericCases[i];
	WideString input(testcase.input);
	WideString expected(testcase.expected, testcase.expected_length);
	WideString result;
	CBC_PDF417HighLevelEncoder::EncodeNumeric(input, testcase.offset,
	testcase.count, &result);
	EXPECT_EQ(expected, result) << " for case number " << i;
	}
	}

	TEST(PDF417HighLevelEncoderTest, ConsecutiveDigitCount) {
	static constexpr struct ConsecutiveDigitCase {
	const wchar_t* input;
	int offset;
	int expected_count;
	} kConsecutiveDigitCases[] = {
	// Empty string contains 0 consecutive digits.
	{L"", 0, 0},

	// Single non-digit character contains 0 consecutive digits.
	{L"X", 0, 0},

	// Leading non-digit followed by digits contains 0 consecutive.
	{L"X123", 0, 0},

	// Single digit contains 1 consecutive digit.
	{L"1", 0, 1},

	// Single digit followe by non-digit contains 1 consecutive digit.
	{L"1Z", 0, 1},

	// Test longer strings.
	{L"123FOO45678", 0, 3},

	// Test subtring starting in digits field.
	{L"123FOO45678", 3, 0},

	// Test subtring starting in non-digits field.
	{L"123FOO45678", 3, 0},

	// Test substring starting in digits field following non-digit field.
	{L"123FOO45678", 6, 5},
	};

	for (size_t i = 0; i < pdfium::size(kConsecutiveDigitCases); ++i) {
	const ConsecutiveDigitCase& testcase = kConsecutiveDigitCases[i];
	WideString input(testcase.input);
	int actual_count =
	CBC_PDF417HighLevelEncoder::DetermineConsecutiveDigitCount(
	input, testcase.offset);
	EXPECT_EQ(testcase.expected_count, actual_count)
	<< " for case number " << i;
	}
	}

	TEST(PDF417HighLevelEncoderTest, ConsecutiveTextCount) {
	static constexpr struct ConsecutiveTextCase {
	const wchar_t* input;
	int offset;
	int expected_count;
	} kConsecutiveTextCases[] = {
	// Empty string contains 0 consecutive text characters.
	{L"", 0, 0},

	// Single text character is 1 consecutive text characters.
	{L"X", 0, 1},

	// Trailing numbers count as text characters.
	{L"X123", 0, 4},

	// Leading numbers count as text characters.
	{L"123X", 0, 4},

	// Embedded lo-value binary characters terminate text runs.
	{L"ABC\x0001XXXX", 0, 3},

	// Embedded hi-value binary characters terminate text runs.
	{L"ABC\x0100XXXX", 0, 3},

	// Text run still found after indexing past lo-value character.
	{L"ABC\x0001XXXX", 4, 4},

	// Text run still found after indexing past hi-value character.
	{L"ABC\x0100XXXX", 4, 4},

	// Leading hi-value character results in 0 consecutive characters.
	{L"\x0100XXX", 0, 0},

	// Up to 12 numbers count as text.
	{L"123456789012", 0, 12},

	// 13 or more numbers are compresssed using numeric compression, not text.
	{L"1234567890123", 0, 0},

	// Leading Text character doesn't affect the 12 character case.
	{L"X123456789012", 0, 13},

	// Leading Text character doesn't affect the 13 character case.
	{L"X1234567890123", 0, 1},

	// Jumping between numbers and letters works properly.
	{L"XXX121XXX12345678901234", 0, 9},
	};

	for (size_t i = 0; i < pdfium::size(kConsecutiveTextCases); ++i) {
	const ConsecutiveTextCase& testcase = kConsecutiveTextCases[i];
	WideString input(testcase.input);
	int actual_count =
	CBC_PDF417HighLevelEncoder::DetermineConsecutiveTextCount(
	input, testcase.offset);
	EXPECT_EQ(testcase.expected_count, actual_count)
	<< " for case number " << i;
	}
	}

	TEST(PDF417HighLevelEncoderTest, ConsecutiveBinaryCount) {
	// TODO(tsepez): implement test cases.
	}