Move tests next to their implementations.

src/ftxui/dom/text_test.cpp

@@ -0,0 +1,82 @@
+#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());
+}