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      1 // Copyright 2014 The Chromium Authors. All rights reserved.
      2 // Use of this source code is governed by a BSD-style license that can be
      3 // found in the LICENSE file.
      4 
      5 #include "config.h"
      6 #include "core/editing/InputMethodController.h"
      7 
      8 #include "core/frame/LocalFrame.h"
      9 #include "core/html/HTMLDocument.h"
     10 #include "core/html/HTMLInputElement.h"
     11 #include "core/testing/DummyPageHolder.h"
     12 #include <gtest/gtest.h>
     13 
     14 using namespace blink;
     15 using namespace WebCore;
     16 
     17 namespace {
     18 
     19 class InputMethodControllerTest : public ::testing::Test {
     20 protected:
     21     InputMethodController& controller() { return frame().inputMethodController(); }
     22     HTMLDocument& document() const { return *m_document; }
     23     LocalFrame& frame() const { return m_dummyPageHolder->frame(); }
     24 
     25 private:
     26     virtual void SetUp() OVERRIDE;
     27 
     28     OwnPtr<DummyPageHolder> m_dummyPageHolder;
     29     HTMLDocument* m_document;
     30 };
     31 
     32 void InputMethodControllerTest::SetUp()
     33 {
     34     m_dummyPageHolder = DummyPageHolder::create(IntSize(800, 600));
     35     m_document = toHTMLDocument(&m_dummyPageHolder->document());
     36     ASSERT(m_document);
     37 }
     38 
     39 TEST_F(InputMethodControllerTest, BackspaceFromEndOfInput)
     40 {
     41     document().write("<input id='sample'>");
     42     HTMLInputElement* input = toHTMLInputElement(document().getElementById("sample"));
     43     document().updateLayout();
     44     input->focus();
     45 
     46     input->setValue("fooX");
     47     controller().setEditableSelectionOffsets(PlainTextRange(4, 4));
     48     EXPECT_STREQ("fooX", input->value().utf8().data());
     49     controller().extendSelectionAndDelete(0, 0);
     50     EXPECT_STREQ("fooX", input->value().utf8().data());
     51 
     52     input->setValue("fooX");
     53     controller().setEditableSelectionOffsets(PlainTextRange(4, 4));
     54     EXPECT_STREQ("fooX", input->value().utf8().data());
     55     controller().extendSelectionAndDelete(1, 0);
     56     EXPECT_STREQ("foo", input->value().utf8().data());
     57 
     58     input->setValue(String::fromUTF8("foo\xE2\x98\x85")); // U+2605 == "black star"
     59     controller().setEditableSelectionOffsets(PlainTextRange(4, 4));
     60     EXPECT_STREQ("foo\xE2\x98\x85", input->value().utf8().data());
     61     controller().extendSelectionAndDelete(1, 0);
     62     EXPECT_STREQ("foo", input->value().utf8().data());
     63 
     64     input->setValue(String::fromUTF8("foo\xF0\x9F\x8F\x86")); // U+1F3C6 == "trophy"
     65     controller().setEditableSelectionOffsets(PlainTextRange(4, 4));
     66     EXPECT_STREQ("foo\xF0\x9F\x8F\x86", input->value().utf8().data());
     67     controller().extendSelectionAndDelete(1, 0);
     68     EXPECT_STREQ("foo", input->value().utf8().data());
     69 
     70     input->setValue(String::fromUTF8("foo\xE0\xB8\x81\xE0\xB9\x89")); // composed U+0E01 "ka kai" + U+0E49 "mai tho"
     71     controller().setEditableSelectionOffsets(PlainTextRange(4, 4));
     72     EXPECT_STREQ("foo\xE0\xB8\x81\xE0\xB9\x89", input->value().utf8().data());
     73     controller().extendSelectionAndDelete(1, 0);
     74     EXPECT_STREQ("foo", input->value().utf8().data());
     75 
     76     input->setValue("fooX");
     77     controller().setEditableSelectionOffsets(PlainTextRange(4, 4));
     78     EXPECT_STREQ("fooX", input->value().utf8().data());
     79     controller().extendSelectionAndDelete(0, 1);
     80     EXPECT_STREQ("fooX", input->value().utf8().data());
     81 }
     82 
     83 } // namespace
     84