tesseract/unittest/normstrngs_test.h

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#ifndef TESSERACT_UNITTEST_NORMSTRNGS_TEST_H_
#define TESSERACT_UNITTEST_NORMSTRNGS_TEST_H_
#include <string>
#include <vector>
#include "base/stringprintf.h"
#include "absl/strings/str_cat.h"
#include "absl/strings/str_join.h"
#include "tesseract/ccutil/unichar.h"
namespace tesseract {
inline string CodepointList(const std::vector<char32>& str32) {
string result;
int total_chars = str32.size();
for (int i = 0; i < total_chars; ++i) {
StringAppendF(&result, "[%x]", str32[i]);
}
return result;
}
inline string PrintString32WithUnicodes(const string& str) {
std::vector<char32> str32 = UNICHAR::UTF8ToUTF32(str.c_str());
return absl::StrCat("\"", str, "\" ", CodepointList(str32));
}
inline string PrintStringVectorWithUnicodes(const std::vector<string>& glyphs) {
string result;
for (const auto& s : glyphs) {
absl::StrAppend(&result, "Glyph:", PrintString32WithUnicodes(s), "\n");
}
return result;
}
inline void ExpectGraphemeModeResults(const string& str, UnicodeNormMode u_mode,
int unicode_count, int glyph_count,
int grapheme_count,
const string& target_str) {
std::vector<string> glyphs;
EXPECT_TRUE(NormalizeCleanAndSegmentUTF8(
u_mode, OCRNorm::kNone, GraphemeNormMode::kIndividualUnicodes, true,
str.c_str(), &glyphs));
EXPECT_EQ(glyphs.size(), unicode_count)
<< PrintStringVectorWithUnicodes(glyphs);
EXPECT_EQ(target_str, absl::StrJoin(glyphs.begin(), glyphs.end(), ""));
EXPECT_TRUE(NormalizeCleanAndSegmentUTF8(u_mode, OCRNorm::kNone,
GraphemeNormMode::kGlyphSplit, true,
str.c_str(), &glyphs));
EXPECT_EQ(glyphs.size(), glyph_count)
<< PrintStringVectorWithUnicodes(glyphs);
EXPECT_EQ(target_str, absl::StrJoin(glyphs.begin(), glyphs.end(), ""));
EXPECT_TRUE(NormalizeCleanAndSegmentUTF8(u_mode, OCRNorm::kNone,
GraphemeNormMode::kCombined, true,
str.c_str(), &glyphs));
EXPECT_EQ(glyphs.size(), grapheme_count)
<< PrintStringVectorWithUnicodes(glyphs);
EXPECT_EQ(target_str, absl::StrJoin(glyphs.begin(), glyphs.end(), ""));
EXPECT_TRUE(NormalizeCleanAndSegmentUTF8(u_mode, OCRNorm::kNone,
GraphemeNormMode::kSingleString,
true, str.c_str(), &glyphs));
EXPECT_EQ(glyphs.size(), 1) << PrintStringVectorWithUnicodes(glyphs);
EXPECT_EQ(target_str, glyphs[0]);
string result;
EXPECT_TRUE(NormalizeUTF8String(
u_mode, OCRNorm::kNone, GraphemeNorm::kNormalize, str.c_str(), &result));
EXPECT_EQ(target_str, result);
}
} // namespace tesseract
#endif // TESSERACT_UNITTEST_NORMSTRNGS_TEST_H_