/*
* Copyright 2000-2016 JetBrains s.r.o.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.intellij.psi.formatter.java;
import com.intellij.lang.java.JavaLanguage;
import com.intellij.openapi.command.WriteCommandAction;
import com.intellij.openapi.editor.Document;
import com.intellij.openapi.editor.ex.EditorSettingsExternalizable;
import com.intellij.openapi.fileEditor.FileDocumentManager;
import com.intellij.psi.PsiDocumentManager;
import com.intellij.psi.codeStyle.CodeStyleManager;
import com.intellij.psi.codeStyle.CodeStyleSettingsManager;
import com.intellij.psi.codeStyle.CommonCodeStyleSettings;
import com.intellij.testFramework.EditorTestUtil;
import com.intellij.testFramework.LightPlatformCodeInsightTestCase;
import org.jetbrains.annotations.NotNull;
import java.io.IOException;
/**
* Is intended to test formatting in editor behavior, i.e. check how formatting affects things like caret position, selection etc.
*
* @author Denis Zhdanov
* @since 6/1/11 6:17 PM
*/
public class JavaFormatterInEditorTest extends LightPlatformCodeInsightTestCase {
public void testCaretPositionOnLongLineWrapping() throws IOException {
// Inspired by IDEA-70242
CommonCodeStyleSettings javaCommonSettings = getCurrentCodeStyleSettings().getCommonSettings(JavaLanguage.INSTANCE);
javaCommonSettings.WRAP_LONG_LINES = true;
javaCommonSettings.RIGHT_MARGIN = 40;
doTest(
"import static java.util.concurrent.atomic.AtomicInteger.*;\n" +
"\n" +
"class <caret>Test {\n" +
"}",
"import static java.util.concurrent\n" +
" .atomic.AtomicInteger.*;\n" +
"\n" +
"class <caret>Test {\n" +
"}"
);
}
public void testCaretPositionPreserved_WhenOnSameLineWithWhiteSpacesOnly() throws IOException {
String text = "class Test {\n" +
" void test() {\n" +
" <caret>\n" +
" }\n" +
"}";
doTest(text, text);
String before = "class Test {\n" +
" void test() {\n" +
" <caret> \n" +
" }\n" +
"}";
doTest(before, text);
}
public void testCaretPositionPreserved_WhenSomeFormattingNeeded() throws IOException {
String before = "public class Test {\n" +
" int a;\n" +
" \n" +
" public static void main(String[] args) {\n" +
" <caret>\n" +
" }\n" +
"\n" +
" static final long j = 2;\n" +
"}";
String after = "public class Test {\n" +
" int a;\n" +
"\n" +
" public static void main(String[] args) {\n" +
" <caret>\n" +
" }\n" +
"\n" +
" static final long j = 2;\n" +
"}";
doTest(before, after);
before = "public class Test {\n" +
" int a;\n" +
" \n" +
" public static void main(String[] args) {\n" +
" <caret> \n" +
" }\n" +
"\n" +
" static final long j = 2;\n" +
"}";
doTest(before, after);
}
public void testCaretLineAndPositionPreserved_WhenBracketOnNextLineWillBeFormatted() throws IOException {
String before = "public class Test {\n" +
" int a;\n" +
" \n" +
" public static void main(String[] args) {\n" +
" <caret>\n" +
" }\n" +
"\n" +
" static final long j = 2;\n" +
"}";
String after = "public class Test {\n" +
" int a;\n" +
"\n" +
" public static void main(String[] args) {\n" +
" <caret>\n" +
" }\n" +
"\n" +
" static final long j = 2;\n" +
"}";
doTest(before, after);
before = "public class Test {\n" +
" int a;\n" +
" \n" +
" public static void main(String[] args) {\n" +
" <caret> \n" +
" }\n" +
"\n" +
" static final long j = 2;\n" +
"}";
doTest(before, after);
}
public void testKeepIndentsOnBlankLinesCaretPosition() throws IOException {
CommonCodeStyleSettings.IndentOptions indentOptions =
CodeStyleSettingsManager.getSettings(getProject()).getCommonSettings(JavaLanguage.INSTANCE).getIndentOptions();
assertNotNull(indentOptions);
indentOptions.KEEP_INDENTS_ON_EMPTY_LINES = true;
final String initial =
"public class Main {\n" +
" public void foo(boolean a, int x, int y, int z) {\n" +
" do {\n" +
" if (x > 0) {\n" +
" <caret>\n" +
" }\n" +
" }\n" +
" while (y > 0);\n" +
" }\n" +
"}";
doTest(
initial,
"public class Main {\n" +
" public void foo(boolean a, int x, int y, int z) {\n" +
" do {\n" +
" if (x > 0) {\n" +
" <caret>\n" +
" }\n" +
" }\n" +
" while (y > 0);\n" +
" }\n" +
"}"
);
}
public void testKeepWhitespacesOnEmptyLines() {
CommonCodeStyleSettings.IndentOptions indentOptions =
CodeStyleSettingsManager.getSettings(getProject()).getCommonSettings(JavaLanguage.INSTANCE).getIndentOptions();
assertNotNull(indentOptions);
boolean keepIndents = indentOptions.KEEP_INDENTS_ON_EMPTY_LINES;
EditorSettingsExternalizable editorSettings = EditorSettingsExternalizable.getInstance();
String stripSpaces = editorSettings.getStripTrailingSpaces();
try {
editorSettings.setStripTrailingSpaces(EditorSettingsExternalizable.STRIP_TRAILING_SPACES_WHOLE);
indentOptions.KEEP_INDENTS_ON_EMPTY_LINES = true;
final String initial =
"<caret>package com.acme;\n" +
"\n" +
"class Foo {\n" +
" Integer[] foo() {\n" +
" \n" +
" \n" +
" return new Integer[]{0, 1};\n" +
" }\n" +
" \n" +
"}";
final String expected =
" package com.acme;\n" +
"\n" +
"class Foo {\n" +
" Integer[] foo() {\n" +
" \n" +
" \n" +
" return new Integer[]{0, 1};\n" +
" }\n" +
" \n" +
"}";
configureFromFileText(getTestName(false) + ".java", initial);
//WriteCommandAction.runWriteCommandAction(getProject(), () -> CodeStyleManager.getInstance(getProject())
// .reformatText(getFile(), 0, getEditor().getDocument().getTextLength()));
Document doc = getEditor().getDocument();
EditorTestUtil.performTypingAction(getEditor(), ' ');
PsiDocumentManager.getInstance(getProject()).commitDocument(doc);
FileDocumentManager.getInstance().saveAllDocuments();
checkResultByText(expected);
}
finally {
indentOptions.KEEP_INDENTS_ON_EMPTY_LINES = keepIndents;
editorSettings.setStripTrailingSpaces(stripSpaces);
}
}
public void doTest(@NotNull String before, @NotNull String after) throws IOException {
configureFromFileText(getTestName(false) + ".java", before);
WriteCommandAction.runWriteCommandAction(getProject(), () -> CodeStyleManager.getInstance(getProject()).reformatText(getFile(), 0, getEditor().getDocument().getTextLength()));
checkResultByText(after);
}
}