DetectIndentAndTypeTest.java

/*
 * Copyright 2000-2015 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.codeStyle.autodetect;

import com.intellij.ide.highlighter.JavaFileType;
import com.intellij.lang.java.JavaLanguage;
import com.intellij.psi.PsiFile;
import com.intellij.psi.codeStyle.CodeStyleSettings;
import com.intellij.psi.codeStyle.CodeStyleSettingsManager;
import com.intellij.psi.codeStyle.CommonCodeStyleSettings;
import com.intellij.psi.codeStyle.DetectableIndentOptionsProvider;
import com.intellij.testFramework.fixtures.LightPlatformCodeInsightFixtureTestCase;

import static org.assertj.core.api.AssertionsForInterfaceTypes.assertThat;

public class DetectIndentAndTypeTest extends LightPlatformCodeInsightFixtureTestCase {

  private CodeStyleSettings mySettings;
  private String myText = "public class T {\n" +
                        "\tvoid run() {\n" +
                        "\t\tint t = 1 + <caret>2;\n" +
                        "\t}\n" +
                        "}";

  @Override
  public void setUp() throws Exception {
    super.setUp();
    CodeStyleSettingsManager.getInstance(getProject()).setTemporarySettings(new CodeStyleSettings());
    mySettings = CodeStyleSettingsManager.getInstance(getProject()).getCurrentSettings();
    mySettings.AUTODETECT_INDENTS = true;
    DetectableIndentOptionsProvider optionsProvider = DetectableIndentOptionsProvider.getInstance();
    if (optionsProvider != null) {
      optionsProvider.setEnabledInTest(true);
    }
  }

  @Override
  public void tearDown() throws Exception {
    CodeStyleSettingsManager.getInstance(getProject()).dropTemporarySettings();
    DetectableIndentOptionsProvider optionsProvider = DetectableIndentOptionsProvider.getInstance();
    if (optionsProvider != null) {
      optionsProvider.setEnabledInTest(false);
    }
    super.tearDown();
  }

  public void testWhenTabsDetected_SetIndentSizeToTabSize() {
    CommonCodeStyleSettings common = mySettings.getCommonSettings(JavaLanguage.INSTANCE);
    CommonCodeStyleSettings.IndentOptions indentOptions = common.getIndentOptions();

    assert indentOptions != null;

    indentOptions.INDENT_SIZE = 1;
    indentOptions.TAB_SIZE = 2;

    myFixture.configureByText(JavaFileType.INSTANCE,
                              "public class T {\n" +
                              "\tvoid run() {\n" +
                              "\t\tint a = 2;<caret>\n" +
                              "\t}\n" +
                              "}\n");
    myFixture.type('\n');
    myFixture.checkResult("public class T {\n" +
                          "\tvoid run() {\n" +
                          "\t\tint a = 2;\n" +
                          "\t\t<caret>\n" +
                          "\t}\n" +
                          "}\n");
  }

  public void testContinuationTab_AsTabSize() {
    CommonCodeStyleSettings common = mySettings.getCommonSettings(JavaLanguage.INSTANCE);
    mySettings.ALIGN_MULTILINE_BINARY_OPERATION = false;
    CommonCodeStyleSettings.IndentOptions indentOptions = common.getIndentOptions();

    assert indentOptions != null;

    indentOptions.TAB_SIZE = 2;
    indentOptions.INDENT_SIZE = 2;
    indentOptions.CONTINUATION_INDENT_SIZE = 2;

    myFixture.configureByText(JavaFileType.INSTANCE, myText);
    myFixture.type('\n');

    myFixture.checkResult(
      "public class T {\n" +
      "\tvoid run() {\n"   +
      "\t\tint t = 1 + \n" +
      "\t\t\t2;\n"         +
      "\t}\n"              +
      "}");
  }

  public void testContinuationTabs_AsDoubleTabSize() {
    CommonCodeStyleSettings common = mySettings.getCommonSettings(JavaLanguage.INSTANCE);
    mySettings.ALIGN_MULTILINE_BINARY_OPERATION = false;
    CommonCodeStyleSettings.IndentOptions indentOptions = common.getIndentOptions();

    assert indentOptions != null;

    indentOptions.TAB_SIZE = 2;
    indentOptions.INDENT_SIZE = 2;
    indentOptions.CONTINUATION_INDENT_SIZE = 4;
    myFixture.configureByText(JavaFileType.INSTANCE, myText);
    myFixture.type('\n');

    myFixture.checkResult(
      "public class T {\n" +
      "\tvoid run() {\n"   +
      "\t\tint t = 1 + \n" +
      "\t\t\t\t2;\n"       +
      "\t}\n"              +
      "}");
  }

  public void testWhenTabsDetected_SetContinuationIndentSizeToDoubleTabSize() {
    CommonCodeStyleSettings common = mySettings.getCommonSettings(JavaLanguage.INSTANCE);
    CommonCodeStyleSettings.IndentOptions indentOptions = common.getIndentOptions();

    assert indentOptions != null;

    indentOptions.INDENT_SIZE = 1;
    indentOptions.TAB_SIZE = 2;
    indentOptions.CONTINUATION_INDENT_SIZE = 2;

    myFixture.configureByText(JavaFileType.INSTANCE,
                              "public class T {\n" +
                              "\tvoid run() {\n" +
                              "\t\tint a = 2 <caret>+ 2;\n" +
                              "\t}\n" +
                              "}\n");
    myFixture.type('\n');
    myFixture.checkResult("public class T {\n" +
                          "\tvoid run() {\n" +
                          "\t\tint a = 2 \n" +
                          "\t\t\t\t<caret>+ 2;\n" +
                          "\t}\n" +
                          "}\n");
  }
  
  public void testDoNotIndentOptions_WhenTabsDetected_AndUseTabsWasSetByDefault() {
    CommonCodeStyleSettings common = mySettings.getCommonSettings(JavaLanguage.INSTANCE);
    CommonCodeStyleSettings.IndentOptions indentOptions = common.getIndentOptions();

    assert indentOptions != null;
    
    indentOptions.USE_TAB_CHARACTER = true;
    
    indentOptions.TAB_SIZE = 8;
    indentOptions.INDENT_SIZE = 4;
    indentOptions.CONTINUATION_INDENT_SIZE = 8;

    myFixture.configureByText(JavaFileType.INSTANCE, myText);
    PsiFile file = myFixture.getFile();
    CommonCodeStyleSettings.IndentOptions options = mySettings.getIndentOptionsByFile(file);

    assertThat(options.INDENT_SIZE).isEqualTo(4);
    assertThat(indentOptions.CONTINUATION_INDENT_SIZE).isEqualTo(8);
  }
  
}