plugins/InspectionGadgets/testsrc/com/siyeh/ig/style/ProblematicWhitespaceInspectionTest.java

/*
 * Copyright 2000-2014 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.siyeh.ig.style;

import com.intellij.codeInspection.InspectionProfileEntry;
import com.intellij.ide.highlighter.JavaFileType;
import com.intellij.psi.codeStyle.CodeStyleSettings;
import com.intellij.psi.codeStyle.CodeStyleSettingsManager;
import com.intellij.psi.codeStyle.CommonCodeStyleSettings;
import com.siyeh.ig.LightInspectionTestCase;

/**
 * @author Bas Leijdekkers
 */
public class ProblematicWhitespaceInspectionTest extends LightInspectionTestCase {

  public void testTabsInFile() {
    final CodeStyleSettings settings = CodeStyleSettingsManager.getSettings(getProject());
    settings.getIndentOptions(JavaFileType.INSTANCE).USE_TAB_CHARACTER = false;
    doTest("/*File 'X.java' uses tabs for indentation*/class X {\n" +
           "\tString s;\n" +
           "}\n/**/");
  }

  public void testTabsInFile2() {
    final CodeStyleSettings settings = CodeStyleSettingsManager.getSettings(getProject());
    settings.getIndentOptions(JavaFileType.INSTANCE).USE_TAB_CHARACTER = true;
    doTest("class X {\n" +
           "\tString s;\n" +
           "}\n");
  }

  public void testSpacesInFile() {
    final CodeStyleSettings settings = CodeStyleSettingsManager.getSettings(getProject());
    settings.getIndentOptions(JavaFileType.INSTANCE).USE_TAB_CHARACTER = true;
    doTest("/*File 'X.java' uses spaces for indentation*/class X {\n" +
           "  String s;\n" +
           "}\n/**/");
  }

  public void testSpacesInFile2() {
    final CodeStyleSettings settings = CodeStyleSettingsManager.getSettings(getProject());
    settings.getIndentOptions(JavaFileType.INSTANCE).USE_TAB_CHARACTER = false;
    doTest("class X {\n" +
           "  String s;\n" +
           "}\n");
  }

  public void testSmartTabsInFile() {
    final CodeStyleSettings settings = CodeStyleSettingsManager.getSettings(getProject());
    final CommonCodeStyleSettings.IndentOptions options = settings.getIndentOptions(JavaFileType.INSTANCE);
    options.USE_TAB_CHARACTER = true;
    options.SMART_TABS = true;
    doTest("/*File 'X.java' uses spaces for indentation*/class X {\n" +
           "  \tString s;\n" +
           "}\n/**/");
  }

  public void testSmartTabsInFile2() {
    final CodeStyleSettings settings = CodeStyleSettingsManager.getSettings(getProject());
    final CommonCodeStyleSettings.IndentOptions options = settings.getIndentOptions(JavaFileType.INSTANCE);
    options.USE_TAB_CHARACTER = true;
    options.SMART_TABS = true;
    doTest("class X {\n" +
           "\tvoid aaa(boolean a, boolean b, boolean c) {\n" +
           "\t\taaa(true,\n" +
           "\t\t    true,\n" +
           "\t\t    true);\n" +
           "\t}\n" +
           "}\n");
  }

  public void testSmartTabsInFile3() {
    final CodeStyleSettings settings = CodeStyleSettingsManager.getSettings(getProject());
    final CommonCodeStyleSettings.IndentOptions options = settings.getIndentOptions(JavaFileType.INSTANCE);
    options.USE_TAB_CHARACTER = true;
    options.SMART_TABS = true;
    doTest("/*File 'X.java' uses spaces for indentation*/class X {\n" +
           "\tvoid aaa(boolean a, boolean b, boolean c) {\n" +
           "\t\taaa(true,\n" +
           "\t \t    true,\n" +
           "\t\t    true);\n" +
           "\t}\n" +
           "}\n/**/");
  }

  public void testSmartTabsInFileWihtoutBinaryExpressionMultilineAlignment() {
    final CodeStyleSettings settings = CodeStyleSettingsManager.getSettings(getProject());
    final CommonCodeStyleSettings.IndentOptions options = settings.getIndentOptions(JavaFileType.INSTANCE);
    options.USE_TAB_CHARACTER = true;
    options.SMART_TABS = true;
    doTest("class X {{\n" +
           "\tSystem.out.println(\"asdf\" +\n" +
           "\t\t\t                   \"asdf\");\n" +
           "}}");
  }

  @Override
  protected InspectionProfileEntry getInspection() {
    return new ProblematicWhitespaceInspection();
  }
}