FTXUI/src/ftxui/dom/text_test.cpp

// 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.

#include "ftxui/dom/elements.hpp"
#include "ftxui/screen/screen.hpp"
#include "gtest/gtest.h"

using namespace ftxui;
using namespace ftxui;

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

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

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

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

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

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

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

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

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

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

// See https://github.com/ArthurSonzogni/FTXUI/issues/2#issuecomment-504871456
TEST(TextTest, CJK) {
  auto element = text(L"测试") | border;
  Screen screen(6, 3);
  Render(screen, element.get());
  EXPECT_EQ(
      "┌────┐\n"
      "│测试│\n"
      "└────┘",
      screen.ToString());
}

// See https://github.com/ArthurSonzogni/FTXUI/issues/2#issuecomment-504871456
TEST(TextTest, CJK_2) {
  auto element = text(L"测试") | border;
  Screen screen(5, 3);
  Render(screen, element.get());
  EXPECT_EQ(
      "┌───┐\n"
      "│测试\n"
      "└───┘",
      screen.ToString());
}

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