FTXUI/src/ftxui/dom/text_test.cpp

#include <gtest/gtest.h>
#include <string>  // for allocator, string

#include "ftxui/dom/elements.hpp"   // for text, operator|, border, Element
#include "ftxui/dom/node.hpp"       // for Render
#include "ftxui/screen/screen.hpp"  // for Screen

namespace ftxui {

TEST(TextTest, ScreenHeightSmaller) {
  auto element = text("test");
  Screen screen(2, 0);
  Render(screen, element);

  EXPECT_EQ("", screen.ToString());
}

TEST(TextTest, ScreenSmaller) {
  auto element = text("test");
  Screen screen(2, 1);
  Render(screen, element);

  EXPECT_EQ("te", screen.ToString());
}

TEST(TextTest, ScreenFit) {
  auto element = text("test");
  Screen screen(4, 1);
  Render(screen, element);

  EXPECT_EQ("test", screen.ToString());
}

TEST(TextTest, ScreenBigger) {
  auto element = text("test");
  Screen screen(6, 1);
  Render(screen, element);

  EXPECT_EQ("test  ", screen.ToString());
}

TEST(TextTest, ScreenBigger2) {
  auto element = text("test");
  Screen screen(6, 2);
  Render(screen, element);

  EXPECT_EQ("test  \r\n      ", screen.ToString());
}

// See https://github.com/ArthurSonzogni/FTXUI/issues/2#issuecomment-504871456
TEST(TextTest, CJK) {
  auto element = text("测试") | border;
  Screen screen(6, 3);
  Render(screen, element);
  EXPECT_EQ(
      "╭────╮\r\n"
      "│测试│\r\n"
      "╰────╯",
      screen.ToString());
}

// See https://github.com/ArthurSonzogni/FTXUI/issues/2#issuecomment-504871456
TEST(TextTest, CJK_2) {
  auto element = text("测试") | border;
  Screen screen(5, 3);
  Render(screen, element);
  EXPECT_EQ(
      "╭───╮\r\n"
      "│测试\r\n"
      "╰───╯",
      screen.ToString());
}

// See https://github.com/ArthurSonzogni/FTXUI/issues/2#issuecomment-504871456
TEST(TextTest, CJK_3) {
  auto element = text("测试") | border;
  Screen screen(4, 3);
  Render(screen, element);
  EXPECT_EQ(
      "╭──╮\r\n"
      "│测│\r\n"
      "╰──╯",
      screen.ToString());
}

TEST(TextTest, CombiningCharacters) {
  const std::string t =
      // Combining above:
      "āàáâãāa̅ăȧäảåa̋ǎa̍a̎ȁa̐ȃa̒a̔a̕a̚a̛a̽a̾a̿àáa͂a͆a͊a͋a͌a͐"
      "a͑a͒a͗a͘a͛a͝a͞a͠a͡aͣaͤaͥaͦaͧaͨaͩaͪaͫaͬaͭaͮaͯa᷀a᷁a᷃a᷄a᷅a᷆a᷇a᷈a᷉a᷾a⃐a⃑a⃔"
      "a⃕a⃖a⃗a⃛a⃜a⃡a⃩a⃰a︠a︡a︢a︣"
      // Combining middle:
      "a̴a̵a̶a̷a̸a⃒a⃓a⃘a⃙a⃚a⃝a⃞a⃟a⃥a⃦"
      // Combining below:
      "a̗a̘a̙a̜a̝a̞a̟a̠a̡a̢ạḁa̦a̧ąa̩a̪a̫a̬a̭a̮a̯a̰a̱a̲a̳a̹a̺a̻a̼aͅa͇a͈a͉a͍"
      "a͎a͓a͔a͕a͖a͙a͚a͜a͟a͢a᷂a᷊a᷿a⃨";
  auto element = text(t);
  Screen screen(146, 1);
  Render(screen, element);
  EXPECT_EQ(t, screen.ToString());
}

TEST(TextTest, CombiningCharactersWithSpace) {
  const std::string t =
      // Combining above:
      "ā à á â ã ā a̅ ă ȧ ä ả å a̋ ǎ a̍ a̎ ȁ a̐ ȃ a̒ a̔ a̕ a̚ a̛ a̽ a̾ a̿ à á a͂ a͆ a͊ a͋ a͌ a͐ "
      "a͑ a͒ a͗ a͘ a͛ a͝ a͞ a͠ a͡ aͣ aͤ aͥ aͦ aͧ aͨ aͩ aͪ aͫ aͬ aͭ aͮ aͯ a᷀ a᷁ a᷃ a᷄ a᷅ a᷆ a᷇ a᷈ a᷉ a᷾ a⃐ a⃑ a⃔ "
      "a⃕ a⃖ a⃗ a⃛ a⃜ a⃡ a⃩ a⃰ a︠ a︡ a︢ a︣"
      // Combining middle:
      "a̴ a̵ a̶ a̷ a̸ a⃒ a⃓ a⃘ a⃙ a⃚ a⃝ a⃞ a⃟ a⃥ a⃦"
      // Combining below:
      "a̗ a̘ a̙ a̜ a̝ a̞ a̟ a̠ a̡ a̢ ạ ḁ a̦ a̧ ą a̩ a̪ a̫ a̬ a̭ a̮ a̯ a̰ a̱ a̲ a̳ a̹ a̺ a̻ a̼ aͅ a͇ a͈ a͉ a͍ "
      "a͎ a͓ a͔ a͕ a͖ a͙ a͚ a͜ a͟ a͢ a᷂ a᷊ a᷿ a⃨ ";
  auto element = text(t);
  Screen screen(290, 1);
  Render(screen, element);
  EXPECT_EQ(t, screen.ToString());
}

}  // namespace ftxui

// Copyright 2020 Arthur Sonzogni. All rights reserved.
// Use of this source code is governed by the MIT license that can be found in
// the LICENSE file.