text_editing_delta_unittests.cc

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// Copyright 2013 The Flutter Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
 
#include "flutter/shell/platform/common/text_editing_delta.h"
 
#include "gtest/gtest.h"
 
namespace flutter {
 
TEST(TextEditingDeltaTest, TestTextEditingDeltaConstructor) {
  // Here we are simulating inserting an "o" at the end of "hell".
  std::string old_text = "hell";
  std::string replacement_text = "hello";
  TextRange range(0, 4);
 
  TextEditingDelta delta = TextEditingDelta(old_text, range, replacement_text);
 
  EXPECT_EQ(delta.old_text(), old_text);
  EXPECT_EQ(delta.delta_text(), "hello");
  EXPECT_EQ(delta.delta_start(), 0);
  EXPECT_EQ(delta.delta_end(), 4);
}
 
TEST(TextEditingDeltaTest, TestTextEditingDeltaNonTextConstructor) {
  // Here we are simulating inserting an "o" at the end of "hell".
  std::string old_text = "hello";
 
  TextEditingDelta delta = TextEditingDelta(old_text);
 
  EXPECT_EQ(delta.old_text(), old_text);
  EXPECT_EQ(delta.delta_text(), "");
  EXPECT_EQ(delta.delta_start(), -1);
  EXPECT_EQ(delta.delta_end(), -1);
}
 
}  // namespace flutter