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https://github.com/tesseract-ocr/tesseract.git
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85 lines
3.5 KiB
C++
85 lines
3.5 KiB
C++
// (C) Copyright 2017, Google Inc.
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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// http://www.apache.org/licenses/LICENSE-2.0
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#ifndef TESSERACT_UNITTEST_NORMSTRNGS_TEST_H_
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#define TESSERACT_UNITTEST_NORMSTRNGS_TEST_H_
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#include <sstream> // for std::stringstream
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#include <string>
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#include <vector>
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#include "absl/strings/str_cat.h"
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#include "absl/strings/str_join.h"
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#include <tesseract/unichar.h>
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namespace tesseract {
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inline std::string CodepointList(const std::vector<char32>& str32) {
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std::stringstream result;
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int total_chars = str32.size();
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result << std::hex;
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for (int i = 0; i < total_chars; ++i) {
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result << "[" << str32[i] << "]";
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}
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return result.str();
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}
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inline std::string PrintString32WithUnicodes(const std::string& str) {
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std::vector<char32> str32 = UNICHAR::UTF8ToUTF32(str.c_str());
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return absl::StrCat("\"", str, "\" ", CodepointList(str32));
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}
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inline std::string PrintStringVectorWithUnicodes(const std::vector<std::string>& glyphs) {
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std::string result;
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for (const auto& s : glyphs) {
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result += "Glyph:";
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result += PrintString32WithUnicodes(s) + "\n";
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}
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return result;
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}
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inline void ExpectGraphemeModeResults(const std::string& str, UnicodeNormMode u_mode,
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int unicode_count, int glyph_count,
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int grapheme_count,
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const std::string& target_str) {
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std::vector<std::string> glyphs;
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EXPECT_TRUE(NormalizeCleanAndSegmentUTF8(
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u_mode, OCRNorm::kNone, GraphemeNormMode::kIndividualUnicodes, true,
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str.c_str(), &glyphs));
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EXPECT_EQ(glyphs.size(), unicode_count)
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<< PrintStringVectorWithUnicodes(glyphs);
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EXPECT_EQ(target_str, absl::StrJoin(glyphs.begin(), glyphs.end(), ""));
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EXPECT_TRUE(NormalizeCleanAndSegmentUTF8(u_mode, OCRNorm::kNone,
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GraphemeNormMode::kGlyphSplit, true,
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str.c_str(), &glyphs));
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EXPECT_EQ(glyphs.size(), glyph_count)
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<< PrintStringVectorWithUnicodes(glyphs);
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EXPECT_EQ(target_str, absl::StrJoin(glyphs.begin(), glyphs.end(), ""));
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EXPECT_TRUE(NormalizeCleanAndSegmentUTF8(u_mode, OCRNorm::kNone,
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GraphemeNormMode::kCombined, true,
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str.c_str(), &glyphs));
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EXPECT_EQ(glyphs.size(), grapheme_count)
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<< PrintStringVectorWithUnicodes(glyphs);
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EXPECT_EQ(target_str, absl::StrJoin(glyphs.begin(), glyphs.end(), ""));
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EXPECT_TRUE(NormalizeCleanAndSegmentUTF8(u_mode, OCRNorm::kNone,
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GraphemeNormMode::kSingleString,
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true, str.c_str(), &glyphs));
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EXPECT_EQ(glyphs.size(), 1) << PrintStringVectorWithUnicodes(glyphs);
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EXPECT_EQ(target_str, glyphs[0]);
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std::string result;
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EXPECT_TRUE(NormalizeUTF8String(
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u_mode, OCRNorm::kNone, GraphemeNorm::kNormalize, str.c_str(), &result));
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EXPECT_EQ(target_str, result);
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}
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} // namespace tesseract
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#endif // TESSERACT_UNITTEST_NORMSTRNGS_TEST_H_
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