mirror of
https://github.com/tesseract-ocr/tesseract.git
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523 lines
21 KiB
C++
523 lines
21 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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#include "include_gunit.h"
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#include "boxchar.h"
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#include "boxread.h"
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#include "commandlineflags.h"
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#include "stringrenderer.h"
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#include "strngs.h"
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#include <allheaders.h>
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#include "absl/strings/str_split.h" // for absl::StrSplit
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#include <memory>
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#include <string>
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BOOL_PARAM_FLAG(display, false, "Display image for inspection");
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namespace tesseract {
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const char kEngText[] = "the quick brown fox jumps over the lazy dog";
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const char kHinText[] = "पिताने विवाह की | हो गई उद्विग्न वह सोचा";
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const char kKorText[] = "이는 것으로 다시 넣을 1234 수는 있지만 선택의 의미는";
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const char kArabicText[] =
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"والفكر والصراع ، بالتأمل والفهم والتحليل ، "
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"بالعلم والفن ، وأخيرا بالضحك أوبالبكاء ، ";
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const char kMixedText[] = "والفكر 123 والصراع abc";
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const char kEngNonLigatureText[] = "fidelity";
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// Same as kEngNonLigatureText, but with "fi" replaced with its ligature.
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const char kEngLigatureText[] = "fidelity";
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static PangoFontMap *font_map;
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class StringRendererTest : public ::testing::Test {
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protected:
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void SetUp() override {
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if (!font_map) {
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font_map = pango_cairo_font_map_new_for_font_type(CAIRO_FONT_TYPE_FT);
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}
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pango_cairo_font_map_set_default(PANGO_CAIRO_FONT_MAP(font_map));
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}
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static void SetUpTestCase() {
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static std::locale system_locale("");
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std::locale::global(system_locale);
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l_chooseDisplayProg(L_DISPLAY_WITH_XZGV);
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FLAGS_fonts_dir = TESTING_DIR;
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FLAGS_fontconfig_tmpdir = FLAGS_test_tmpdir;
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file::MakeTmpdir();
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PangoFontInfo::SoftInitFontConfig(); // init early
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}
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void DisplayClusterBoxes(Pix *pix) {
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if (!FLAGS_display)
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return;
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const std::vector<BoxChar *> &boxchars = renderer_->GetBoxes();
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Boxa *boxes = boxaCreate(0);
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for (const auto &boxchar : boxchars) {
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if (boxchar->box())
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boxaAddBox(boxes, const_cast<Box *>(boxchar->box()), L_CLONE);
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}
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Pix *box_pix = pixDrawBoxaRandom(pix, boxes, 1);
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boxaDestroy(&boxes);
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pixDisplay(box_pix, 0, 0);
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pixDestroy(&box_pix);
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}
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std::unique_ptr<StringRenderer> renderer_;
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};
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TEST_F(StringRendererTest, DoesRenderToImage) {
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renderer_.reset(new StringRenderer("Verdana 10", 600, 600));
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Pix *pix = nullptr;
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EXPECT_EQ(strlen(kEngText), renderer_->RenderToImage(kEngText, strlen(kEngText), &pix));
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EXPECT_TRUE(pix != nullptr);
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EXPECT_GT(renderer_->GetBoxes().size(), 0);
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DisplayClusterBoxes(pix);
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pixDestroy(&pix);
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renderer_.reset(new StringRenderer("UnBatang 10", 600, 600));
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EXPECT_EQ(strlen(kKorText), renderer_->RenderToImage(kKorText, strlen(kKorText), &pix));
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EXPECT_GT(renderer_->GetBoxes().size(), 0);
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DisplayClusterBoxes(pix);
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pixDestroy(&pix);
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renderer_.reset(new StringRenderer("Lohit Hindi 10", 600, 600));
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EXPECT_EQ(strlen(kHinText), renderer_->RenderToImage(kHinText, strlen(kHinText), &pix));
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EXPECT_GT(renderer_->GetBoxes().size(), 0);
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DisplayClusterBoxes(pix);
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pixDestroy(&pix);
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// RTL text
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renderer_.reset(new StringRenderer("Arab 10", 600, 600));
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EXPECT_EQ(strlen(kArabicText), renderer_->RenderToImage(kArabicText, strlen(kArabicText), &pix));
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EXPECT_TRUE(pix != nullptr);
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EXPECT_GT(renderer_->GetBoxes().size(), 0);
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DisplayClusterBoxes(pix);
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pixDestroy(&pix);
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// Mixed direction Arabic + english text
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renderer_.reset(new StringRenderer("Arab 10", 600, 600));
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EXPECT_EQ(strlen(kMixedText), renderer_->RenderToImage(kMixedText, strlen(kMixedText), &pix));
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EXPECT_TRUE(pix != nullptr);
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EXPECT_GT(renderer_->GetBoxes().size(), 0);
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DisplayClusterBoxes(pix);
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pixDestroy(&pix);
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}
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TEST_F(StringRendererTest, DoesRenderToImageWithUnderline) {
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renderer_.reset(new StringRenderer("Verdana 10", 600, 600));
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// Underline all words but NOT intervening spaces.
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renderer_->set_underline_start_prob(1.0);
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renderer_->set_underline_continuation_prob(0);
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Pix *pix = nullptr;
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EXPECT_EQ(strlen(kEngText), renderer_->RenderToImage(kEngText, strlen(kEngText), &pix));
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EXPECT_TRUE(pix != nullptr);
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EXPECT_GT(renderer_->GetBoxes().size(), 0);
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DisplayClusterBoxes(pix);
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pixDestroy(&pix);
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renderer_->ClearBoxes();
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// Underline all words AND intervening spaces.
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renderer_->set_underline_start_prob(1.0);
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renderer_->set_underline_continuation_prob(1.0);
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EXPECT_EQ(strlen(kEngText), renderer_->RenderToImage(kEngText, strlen(kEngText), &pix));
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EXPECT_TRUE(pix != nullptr);
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EXPECT_GT(renderer_->GetBoxes().size(), 0);
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DisplayClusterBoxes(pix);
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pixDestroy(&pix);
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renderer_->ClearBoxes();
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// Underline words and intervening spaces with 0.5 prob.
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renderer_->set_underline_start_prob(0.5);
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renderer_->set_underline_continuation_prob(0.5);
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EXPECT_EQ(strlen(kEngText), renderer_->RenderToImage(kEngText, strlen(kEngText), &pix));
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EXPECT_TRUE(pix != nullptr);
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EXPECT_GT(renderer_->GetBoxes().size(), 0);
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DisplayClusterBoxes(pix);
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pixDestroy(&pix);
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}
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TEST_F(StringRendererTest, DoesHandleNewlineCharacters) {
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const char kRawText[] = "\n\n\n A \nB \nC \n\n\n";
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const char kStrippedText[] = " A B C "; // text with newline chars removed
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renderer_.reset(new StringRenderer("Verdana 10", 600, 600));
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Pix *pix = nullptr;
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EXPECT_EQ(strlen(kRawText), renderer_->RenderToImage(kRawText, strlen(kRawText), &pix));
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EXPECT_TRUE(pix != nullptr);
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const std::vector<BoxChar *> &boxchars = renderer_->GetBoxes();
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// 3 characters + 4 spaces => 7 boxes
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EXPECT_EQ(7, boxchars.size());
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if (boxchars.size() == 7) {
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// Verify the text content of the boxchars
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for (size_t i = 0; i < boxchars.size(); ++i) {
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EXPECT_EQ(std::string(1, kStrippedText[i]), boxchars[i]->ch());
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}
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}
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DisplayClusterBoxes(pix);
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pixDestroy(&pix);
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}
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TEST_F(StringRendererTest, DoesRenderLigatures) {
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renderer_.reset(new StringRenderer("Arab 12", 600, 250));
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const char kArabicLigature[] = "لا";
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Pix *pix = nullptr;
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EXPECT_EQ(strlen(kArabicLigature),
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renderer_->RenderToImage(kArabicLigature, strlen(kArabicLigature), &pix));
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EXPECT_TRUE(pix != nullptr);
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EXPECT_GT(renderer_->GetBoxes().size(), 0);
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const std::vector<BoxChar *> &boxes = renderer_->GetBoxes();
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EXPECT_EQ(1, boxes.size());
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EXPECT_TRUE(boxes[0]->box() != nullptr);
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EXPECT_STREQ(kArabicLigature, boxes[0]->ch().c_str());
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DisplayClusterBoxes(pix);
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pixDestroy(&pix);
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renderer_.reset(new StringRenderer("Arab 12", 600, 250));
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const char kArabicMixedText[] = "والفكر والصراع 1234,\nوالفكر لا والصراع";
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renderer_->RenderToImage(kArabicMixedText, strlen(kArabicMixedText), &pix);
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DisplayClusterBoxes(pix);
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pixDestroy(&pix);
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}
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static int FindBoxCharXCoord(const std::vector<BoxChar *> &boxchars, const std::string &ch) {
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for (const auto &boxchar : boxchars) {
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if (boxchar->ch() == ch)
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return boxchar->box()->x;
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}
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return INT_MAX;
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}
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TEST_F(StringRendererTest, ArabicBoxcharsInLTROrder) {
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renderer_.reset(new StringRenderer("Arab 10", 600, 600));
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Pix *pix = nullptr;
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// Arabic letters should be in decreasing x-coordinates
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const char kArabicWord[] = "\u0644\u0627\u0641\u0643\u0631";
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const std::string kRevWord = "\u0631\u0643\u0641\u0627\u0644";
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renderer_->RenderToImage(kArabicWord, strlen(kArabicWord), &pix);
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std::string boxes_str = renderer_->GetBoxesStr();
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// Decode to get the box text strings.
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EXPECT_FALSE(boxes_str.empty());
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std::vector<STRING> texts;
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EXPECT_TRUE(ReadMemBoxes(0, false, boxes_str.c_str(), false, nullptr, &texts, nullptr, nullptr));
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std::string ltr_str;
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for (size_t i = 0; i < texts.size(); ++i) {
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ltr_str += texts[i].c_str();
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}
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// The string should come out perfectly reversed, despite there being a
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// ligature.
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EXPECT_EQ(ltr_str, kRevWord);
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// Just to prove there was a ligature, the number of texts is less than the
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// number of unicodes.
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EXPECT_LT(texts.size(), 5);
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pixDestroy(&pix);
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}
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TEST_F(StringRendererTest, DoesOutputBoxcharsInReadingOrder) {
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renderer_.reset(new StringRenderer("Arab 10", 600, 600));
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Pix *pix = nullptr;
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// Arabic letters should be in decreasing x-coordinates
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const char kArabicWord[] = "والفكر";
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renderer_->RenderToImage(kArabicWord, strlen(kArabicWord), &pix);
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EXPECT_GT(renderer_->GetBoxes().size(), 0);
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const std::vector<BoxChar *> &boxchars = renderer_->GetBoxes();
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for (size_t i = 1; i < boxchars.size(); ++i) {
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EXPECT_GT(boxchars[i - 1]->box()->x, boxchars[i]->box()->x) << boxchars[i - 1]->ch();
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}
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pixDestroy(&pix);
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// English letters should be in increasing x-coordinates
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const char kEnglishWord[] = "Google";
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renderer_->ClearBoxes();
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renderer_->RenderToImage(kEnglishWord, strlen(kEnglishWord), &pix);
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EXPECT_EQ(boxchars.size(), strlen(kEnglishWord));
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for (size_t i = 1; i < boxchars.size(); ++i) {
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EXPECT_LT(boxchars[i - 1]->box()->x, boxchars[i]->box()->x) << boxchars[i - 1]->ch();
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}
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pixDestroy(&pix);
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// Mixed text should satisfy both.
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renderer_->ClearBoxes();
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renderer_->RenderToImage(kMixedText, strlen(kMixedText), &pix);
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EXPECT_LT(FindBoxCharXCoord(boxchars, "a"), FindBoxCharXCoord(boxchars, "b"));
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EXPECT_LT(FindBoxCharXCoord(boxchars, "1"), FindBoxCharXCoord(boxchars, "2"));
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EXPECT_GT(FindBoxCharXCoord(boxchars, "و"), FindBoxCharXCoord(boxchars, "ر"));
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pixDestroy(&pix);
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}
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TEST_F(StringRendererTest, DoesRenderVerticalText) {
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Pix *pix = nullptr;
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renderer_.reset(new StringRenderer("UnBatang 10", 600, 600));
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renderer_->set_vertical_text(true);
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EXPECT_EQ(strlen(kKorText), renderer_->RenderToImage(kKorText, strlen(kKorText), &pix));
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EXPECT_GT(renderer_->GetBoxes().size(), 0);
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DisplayClusterBoxes(pix);
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pixDestroy(&pix);
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}
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// Checks that we preserve charboxes across RenderToImage calls, with
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// appropriate page numbers.
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TEST_F(StringRendererTest, DoesKeepAllImageBoxes) {
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renderer_.reset(new StringRenderer("Verdana 10", 600, 600));
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Pix *pix = nullptr;
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int num_boxes_per_page = 0;
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const int kNumTrials = 2;
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for (int i = 0; i < kNumTrials; ++i) {
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EXPECT_EQ(strlen(kEngText), renderer_->RenderToImage(kEngText, strlen(kEngText), &pix));
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EXPECT_TRUE(pix != nullptr);
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pixDestroy(&pix);
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EXPECT_GT(renderer_->GetBoxes().size(), 0);
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if (!num_boxes_per_page) {
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num_boxes_per_page = renderer_->GetBoxes().size();
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} else {
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EXPECT_EQ((i + 1) * num_boxes_per_page, renderer_->GetBoxes().size());
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}
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for (int j = i * num_boxes_per_page; j < (i + 1) * num_boxes_per_page; ++j) {
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EXPECT_EQ(i, renderer_->GetBoxes()[j]->page());
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}
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}
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}
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TEST_F(StringRendererTest, DoesClearBoxes) {
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renderer_.reset(new StringRenderer("Verdana 10", 600, 600));
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Pix *pix = nullptr;
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EXPECT_EQ(strlen(kEngText), renderer_->RenderToImage(kEngText, strlen(kEngText), &pix));
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pixDestroy(&pix);
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EXPECT_GT(renderer_->GetBoxes().size(), 0);
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const int num_boxes_per_page = renderer_->GetBoxes().size();
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renderer_->ClearBoxes();
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EXPECT_EQ(strlen(kEngText), renderer_->RenderToImage(kEngText, strlen(kEngText), &pix));
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pixDestroy(&pix);
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EXPECT_EQ(num_boxes_per_page, renderer_->GetBoxes().size());
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}
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TEST_F(StringRendererTest, DoesLigatureTextForRendering) {
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renderer_.reset(new StringRenderer("Verdana 10", 600, 600));
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renderer_->set_add_ligatures(true);
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Pix *pix = nullptr;
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EXPECT_EQ(strlen(kEngNonLigatureText),
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renderer_->RenderToImage(kEngNonLigatureText, strlen(kEngNonLigatureText), &pix));
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pixDestroy(&pix);
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// There should be one less box than letters due to the 'fi' ligature.
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EXPECT_EQ(strlen(kEngNonLigatureText) - 1, renderer_->GetBoxes().size());
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// The output box text should be ligatured.
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EXPECT_STREQ("fi", renderer_->GetBoxes()[0]->ch().c_str());
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}
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TEST_F(StringRendererTest, DoesRetainInputLigatureForRendering) {
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renderer_.reset(new StringRenderer("Verdana 10", 600, 600));
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Pix *pix = nullptr;
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EXPECT_EQ(strlen(kEngLigatureText),
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renderer_->RenderToImage(kEngLigatureText, strlen(kEngLigatureText), &pix));
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pixDestroy(&pix);
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// There should be one less box than letters due to the 'fi' ligature.
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EXPECT_EQ(strlen(kEngNonLigatureText) - 1, renderer_->GetBoxes().size());
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// The output box text should be ligatured.
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EXPECT_STREQ("\uFB01", renderer_->GetBoxes()[0]->ch().c_str());
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}
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TEST_F(StringRendererTest, DoesStripUnrenderableWords) {
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// Verdana should only be able to render the english letters and numbers in
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// the mixed text.
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renderer_.reset(new StringRenderer("Verdana 10", 600, 600));
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std::string text(kMixedText);
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EXPECT_GT(renderer_->StripUnrenderableWords(&text), 0);
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EXPECT_EQ(" 123 abc", text);
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}
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TEST_F(StringRendererTest, DoesRenderWordBoxes) {
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renderer_.reset(new StringRenderer("Verdana 10", 600, 600));
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renderer_->set_output_word_boxes(true);
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Pix *pix = nullptr;
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EXPECT_EQ(strlen(kEngText), renderer_->RenderToImage(kEngText, strlen(kEngText), &pix));
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pixDestroy(&pix);
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// Verify #boxchars = #words + #spaces
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std::vector<std::string> words = absl::StrSplit(kEngText, ' ', absl::SkipEmpty());
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const int kNumSpaces = words.size() - 1;
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const int kExpectedNumBoxes = words.size() + kNumSpaces;
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const std::vector<BoxChar *> &boxchars = renderer_->GetBoxes();
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EXPECT_EQ(kExpectedNumBoxes, boxchars.size());
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// Verify content of words and spaces
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for (size_t i = 0; i < boxchars.size(); i += 2) {
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EXPECT_EQ(words[i / 2], boxchars[i]->ch());
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if (i < boxchars.size() - 1) {
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EXPECT_EQ(" ", boxchars[i + 1]->ch());
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EXPECT_TRUE(boxchars[i + 1]->box() == nullptr);
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}
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}
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}
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TEST_F(StringRendererTest, DoesRenderWordBoxesFromMultiLineText) {
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renderer_.reset(new StringRenderer("Verdana 10", 600, 600));
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renderer_->set_output_word_boxes(true);
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Pix *pix = nullptr;
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const char kMultlineText[] = "the quick brown fox\njumps over the lazy dog";
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EXPECT_EQ(strlen(kMultlineText), renderer_->RenderToImage(kMultlineText, strlen(kEngText), &pix));
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pixDestroy(&pix);
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// Verify #boxchars = #words + #spaces + #newlines
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std::vector<std::string> words =
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absl::StrSplit(kMultlineText, absl::ByAnyChar(" \n"), absl::SkipEmpty());
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const int kNumSeparators = words.size() - 1;
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const int kExpectedNumBoxes = words.size() + kNumSeparators;
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const std::vector<BoxChar *> &boxchars = renderer_->GetBoxes();
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EXPECT_EQ(kExpectedNumBoxes, boxchars.size());
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// Verify content of words and spaces
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for (size_t i = 0; i < boxchars.size(); i += 2) {
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EXPECT_EQ(words[i / 2], boxchars[i]->ch());
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if (i + 1 < boxchars.size()) {
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EXPECT_EQ(" ", boxchars[i + 1]->ch());
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EXPECT_TRUE(boxchars[i + 1]->box() == nullptr);
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}
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}
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}
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TEST_F(StringRendererTest, DoesRenderAllFontsToImage) {
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renderer_.reset(new StringRenderer("Verdana 10", 1200, 1200));
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size_t offset = 0;
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std::string font_used;
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do {
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Pix *pix = nullptr;
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font_used.clear();
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offset += renderer_->RenderAllFontsToImage(1.0, kEngText + offset, strlen(kEngText + offset),
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&font_used, &pix);
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if (offset < strlen(kEngText)) {
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EXPECT_TRUE(pix != nullptr);
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EXPECT_STRNE("", font_used.c_str());
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}
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if (FLAGS_display)
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pixDisplay(pix, 0, 0);
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pixDestroy(&pix);
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} while (offset < strlen(kEngText));
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}
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TEST_F(StringRendererTest, DoesNotRenderWordJoiner) {
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renderer_.reset(new StringRenderer("Verdana 10", 500, 200));
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const std::string word = "A- -B C-D A BC";
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const std::string joined_word = StringRenderer::InsertWordJoiners(word);
|
||
Pix *pix = nullptr;
|
||
renderer_->RenderToImage(joined_word.c_str(), joined_word.length(), &pix);
|
||
pixDestroy(&pix);
|
||
const std::vector<BoxChar *> &boxchars = renderer_->GetBoxes();
|
||
const std::string kWordJoinerUTF8 = "\u2060";
|
||
ASSERT_EQ(word.length(), boxchars.size());
|
||
for (size_t i = 0; i < boxchars.size(); ++i) {
|
||
EXPECT_NE(kWordJoinerUTF8, boxchars[i]->ch());
|
||
EXPECT_EQ(word.substr(i, 1), boxchars[i]->ch());
|
||
}
|
||
}
|
||
|
||
TEST_F(StringRendererTest, DISABLED_DoesDropUncoveredChars) {
|
||
renderer_.reset(new StringRenderer("Verdana 10", 500, 200));
|
||
renderer_->set_drop_uncovered_chars(true);
|
||
const std::string kWord = "office";
|
||
const std::string kCleanWord = "oice";
|
||
Pix *pix = nullptr;
|
||
EXPECT_FALSE(renderer_->font().CanRenderString(kWord.c_str(), kWord.length()));
|
||
EXPECT_FALSE(renderer_->font().CoversUTF8Text(kWord.c_str(), kWord.length()));
|
||
int offset = renderer_->RenderToImage(kWord.c_str(), kWord.length(), &pix);
|
||
pixDestroy(&pix);
|
||
const std::vector<BoxChar *> &boxchars = renderer_->GetBoxes();
|
||
EXPECT_EQ(kWord.length(), offset);
|
||
ASSERT_EQ(kCleanWord.length(), boxchars.size());
|
||
for (size_t i = 0; i < boxchars.size(); ++i) {
|
||
EXPECT_EQ(kCleanWord.substr(i, 1), boxchars[i]->ch());
|
||
}
|
||
}
|
||
|
||
// ------------ StringRenderer::ConvertBasicLatinToFullwidthLatin() ------------
|
||
|
||
TEST(ConvertBasicLatinToFullwidthLatinTest, DoesConvertBasicLatin) {
|
||
const std::string kHalfAlpha = "ABCD";
|
||
const std::string kFullAlpha = "ＡＢＣＤ";
|
||
EXPECT_EQ(kFullAlpha, StringRenderer::ConvertBasicLatinToFullwidthLatin(kHalfAlpha));
|
||
|
||
const std::string kHalfDigit = "0123";
|
||
const std::string kFullDigit = "０１２３";
|
||
EXPECT_EQ(kFullDigit, StringRenderer::ConvertBasicLatinToFullwidthLatin(kHalfDigit));
|
||
|
||
const std::string kHalfSym = "()[]:;!?";
|
||
const std::string kFullSym = "（）［］：；！？";
|
||
EXPECT_EQ(kFullSym, StringRenderer::ConvertBasicLatinToFullwidthLatin(kHalfSym));
|
||
}
|
||
|
||
TEST(ConvertBasicLatinToFullwidthLatinTest, DoesNotConvertFullwidthLatin) {
|
||
const std::string kFullAlpha = "ＡＢＣＤ";
|
||
EXPECT_EQ(kFullAlpha, StringRenderer::ConvertBasicLatinToFullwidthLatin(kFullAlpha));
|
||
|
||
const std::string kFullDigit = "０１２３";
|
||
EXPECT_EQ(kFullDigit, StringRenderer::ConvertBasicLatinToFullwidthLatin(kFullDigit));
|
||
|
||
const std::string kFullSym = "（）［］：；！？";
|
||
EXPECT_EQ(kFullSym, StringRenderer::ConvertBasicLatinToFullwidthLatin(kFullSym));
|
||
}
|
||
|
||
TEST(ConvertBasicLatinToFullwidthLatinTest, DoesNotConvertNonLatin) {
|
||
const std::string kHalfKana = "ｱｲｳｴｵ";
|
||
const std::string kFullKana = "アイウエオ";
|
||
EXPECT_EQ(kHalfKana, StringRenderer::ConvertBasicLatinToFullwidthLatin(kHalfKana));
|
||
EXPECT_EQ(kFullKana, StringRenderer::ConvertBasicLatinToFullwidthLatin(kFullKana));
|
||
}
|
||
|
||
TEST(ConvertBasicLatinToFullwidthLatinTest, DoesNotConvertSpace) {
|
||
const std::string kHalfSpace = " ";
|
||
const std::string kFullSpace = " ";
|
||
EXPECT_EQ(kHalfSpace, StringRenderer::ConvertBasicLatinToFullwidthLatin(kHalfSpace));
|
||
EXPECT_EQ(kFullSpace, StringRenderer::ConvertBasicLatinToFullwidthLatin(kFullSpace));
|
||
}
|
||
|
||
// ------------ StringRenderer::ConvertFullwidthLatinToBasicLatin() ------------
|
||
|
||
TEST(ConvertFullwidthLatinToBasicLatinTest, DoesConvertFullwidthLatin) {
|
||
const std::string kHalfAlpha = "ABCD";
|
||
const std::string kFullAlpha = "ＡＢＣＤ";
|
||
EXPECT_EQ(kHalfAlpha, StringRenderer::ConvertFullwidthLatinToBasicLatin(kFullAlpha));
|
||
|
||
const std::string kHalfDigit = "0123";
|
||
const std::string kFullDigit = "０１２３";
|
||
EXPECT_EQ(kHalfDigit, StringRenderer::ConvertFullwidthLatinToBasicLatin(kFullDigit));
|
||
|
||
const std::string kHalfSym = "()[]:;!?";
|
||
const std::string kFullSym = "（）［］：；！？";
|
||
EXPECT_EQ(kHalfSym, StringRenderer::ConvertFullwidthLatinToBasicLatin(kFullSym));
|
||
}
|
||
|
||
TEST(ConvertFullwidthLatinToBasicLatinTest, DoesNotConvertBasicLatin) {
|
||
const std::string kHalfAlpha = "ABCD";
|
||
EXPECT_EQ(kHalfAlpha, StringRenderer::ConvertFullwidthLatinToBasicLatin(kHalfAlpha));
|
||
|
||
const std::string kHalfDigit = "0123";
|
||
EXPECT_EQ(kHalfDigit, StringRenderer::ConvertFullwidthLatinToBasicLatin(kHalfDigit));
|
||
|
||
const std::string kHalfSym = "()[]:;!?";
|
||
EXPECT_EQ(kHalfSym, StringRenderer::ConvertFullwidthLatinToBasicLatin(kHalfSym));
|
||
}
|
||
|
||
TEST(ConvertFullwidthLatinToBasicLatinTest, DoesNotConvertNonLatin) {
|
||
const std::string kHalfKana = "ｱｲｳｴｵ";
|
||
const std::string kFullKana = "アイウエオ";
|
||
EXPECT_EQ(kHalfKana, StringRenderer::ConvertFullwidthLatinToBasicLatin(kHalfKana));
|
||
EXPECT_EQ(kFullKana, StringRenderer::ConvertFullwidthLatinToBasicLatin(kFullKana));
|
||
}
|
||
|
||
TEST(ConvertFullwidthLatinToBasicLatinTest, DoesNotConvertSpace) {
|
||
const std::string kHalfSpace = " ";
|
||
const std::string kFullSpace = " ";
|
||
EXPECT_EQ(kHalfSpace, StringRenderer::ConvertFullwidthLatinToBasicLatin(kHalfSpace));
|
||
EXPECT_EQ(kFullSpace, StringRenderer::ConvertFullwidthLatinToBasicLatin(kFullSpace));
|
||
}
|
||
} // namespace tesseract
|