Fix InputConnection.deleteSurroundingText()

third_party/WebKit/Source/web/tests/WebViewTest.cpp

Index: third_party/WebKit/Source/web/tests/WebViewTest.cpp
diff --git a/third_party/WebKit/Source/web/tests/WebViewTest.cpp b/third_party/WebKit/Source/web/tests/WebViewTest.cpp
index a32e4562bcd64f4aa8be19556a92a42d1114d5fa..833818a97e05ea1a7f8951ec0a10a1d374fbc0ab 100644
--- a/third_party/WebKit/Source/web/tests/WebViewTest.cpp
+++ b/third_party/WebKit/Source/web/tests/WebViewTest.cpp
@@ -917,6 +917,47 @@ TEST_F(WebViewTest, ExtendSelectionAndDelete)
     EXPECT_EQ("ijklmnopqrstuvwxyz", std::string(info.value.utf8().data()));
 }
 
+TEST_F(WebViewTest, DeleteSurroundingText)
+{
+    URLTestHelpers::registerMockedURLFromBaseURL(WebString::fromUTF8(m_baseURL.c_str()), WebString::fromUTF8("input_field_populated.html"));
+    WebView* webView = m_webViewHelper.initializeAndLoad(m_baseURL + "input_field_populated.html");
+    WebLocalFrameImpl* frame = toWebLocalFrameImpl(webView->mainFrame());
+    webView->setInitialFocus(false);
+
+    frame->setEditableSelectionOffsets(10, 10);
+    frame->deleteSurroundingText(5, 8);
+    WebTextInputInfo info = webView->textInputInfo();
+    EXPECT_EQ("01234ijklmnopqrstuvwxyz", std::string(info.value.utf8().data()));
+    EXPECT_EQ(5, info.selectionStart);
+    EXPECT_EQ(5, info.selectionEnd);
+
+    frame->setEditableSelectionOffsets(5, 10);
+    frame->deleteSurroundingText(3, 5);
+    info = webView->textInputInfo();
+    EXPECT_EQ("01ijklmstuvwxyz", std::string(info.value.utf8().data()));
+    EXPECT_EQ(2, info.selectionStart);
+    EXPECT_EQ(7, info.selectionEnd);
+
+    frame->setEditableSelectionOffsets(5, 5);
+    frame->deleteSurroundingText(10, 0);
+    info = webView->textInputInfo();
+    EXPECT_EQ("lmstuvwxyz", std::string(info.value.utf8().data()));
+    EXPECT_EQ(0, info.selectionStart);
+    EXPECT_EQ(0, info.selectionEnd);
+
+    frame->deleteSurroundingText(0, 20);
+    info = webView->textInputInfo();
+    EXPECT_EQ("", std::string(info.value.utf8().data()));
+    EXPECT_EQ(0, info.selectionStart);
+    EXPECT_EQ(0, info.selectionEnd);
+
+    frame->deleteSurroundingText(10, 10);
+    info = webView->textInputInfo();
+    EXPECT_EQ("", std::string(info.value.utf8().data()));
+    EXPECT_EQ(0, info.selectionStart);
+    EXPECT_EQ(0, info.selectionEnd);
+}
+
 TEST_F(WebViewTest, SetCompositionFromExistingText)
 {
     URLTestHelpers::registerMockedURLFromBaseURL(WebString::fromUTF8(m_baseURL.c_str()), WebString::fromUTF8("input_field_populated.html"));