openide/java/java-tests/testSrc/com/intellij/codeInspection/NullableStuffInspectionTest.java

/*
 * 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.
 */

/*
 * Created by IntelliJ IDEA.
 * User: Alexey
 * Date: 08.07.2006
 * Time: 0:07:45
 */
package com.intellij.codeInspection;

import com.intellij.JavaTestUtil;
import com.intellij.codeInsight.NullableNotNullManager;
import com.intellij.codeInspection.nullable.NullableStuffInspection;
import com.intellij.openapi.Disposable;
import com.intellij.openapi.projectRoots.Sdk;
import com.intellij.openapi.util.Disposer;
import com.intellij.testFramework.LightProjectDescriptor;
import com.intellij.testFramework.PsiTestUtil;
import com.intellij.testFramework.fixtures.DefaultLightProjectDescriptor;
import com.intellij.testFramework.fixtures.LightCodeInsightFixtureTestCase;
import org.jetbrains.annotations.NotNull;

public class NullableStuffInspectionTest extends LightCodeInsightFixtureTestCase {
  private static final DefaultLightProjectDescriptor PROJECT_DESCRIPTOR = new DefaultLightProjectDescriptor() {
    @Override
    public Sdk getSdk() {
      return PsiTestUtil.addJdkAnnotations(super.getSdk());
    }
  };
  private final NullableStuffInspection myInspection = new NullableStuffInspection();
  {
    myInspection.REPORT_ANNOTATION_NOT_PROPAGATED_TO_OVERRIDERS = false;
  }

  @NotNull
  @Override
  protected LightProjectDescriptor getProjectDescriptor() {
    return PROJECT_DESCRIPTOR;
  }

  @Override
  protected String getTestDataPath() {
    return JavaTestUtil.getJavaTestDataPath() + "/inspection/nullableProblems/";
  }

  private void doTest() {
    myFixture.enableInspections(myInspection);
    myFixture.testHighlighting(true, false, true, getTestName(false) + ".java");
  }

  public void testProblems() throws Exception{ doTest(); }
  public void testProblems2() throws Exception{ doTest(); }
  public void testNullableFieldNotnullParam() throws Exception{ doTest(); }
  public void testNotNullFieldNullableParam() throws Exception{ doTest(); }
  public void testNotNullCustomException() throws Exception{ doTest(); }

  public void testNotNullFieldNotInitialized() throws Exception{ doTest(); }
  public void testNotNullFieldInitializedInLambda() { doTest(); }
  public void testNotNullFieldNotInitializedInOneConstructor() { doTest(); }
  public void testNotNullFieldNotInitializedSetting() {
    myInspection.REQUIRE_NOTNULL_FIELDS_INITIALIZED = false;
    doTest();
  }

  public void testNotNullByDefaultFieldNotInitialized() {
    DataFlowInspectionTest.addJavaxNullabilityAnnotations(myFixture);
    doTest();
  }

  public void testNotNullAnnotationChecksInChildClassMethods() { doTest(); }

  public void testGetterSetterProblems() throws Exception{ doTest(); }
  public void testOverriddenMethods() throws Exception{
    myInspection.REPORT_ANNOTATION_NOT_PROPAGATED_TO_OVERRIDERS = true;
    doTest();
  }

  public void testOverridingExternalNotNull() { doTest(); }

  public void testIgnoreExternalNotNull() {
    myInspection.IGNORE_EXTERNAL_SUPER_NOTNULL = true;
    doTest();
  }

  public void testNotNullParameterOverridesNotAnnotated() {
    myInspection.REPORT_NOTNULL_PARAMETERS_OVERRIDES_NOT_ANNOTATED = true;
    doTest();
  }

  public void testHonorSuperParameterDefault() {
    DataFlowInspectionTest.addJavaxNullabilityAnnotations(myFixture);
    DataFlowInspectionTest.addJavaxDefaultNullabilityAnnotations(myFixture);
    myFixture.addFileToProject("foo/package-info.java", "@javax.annotation.ParametersAreNonnullByDefault package foo;");

    myFixture.addClass("import javax.annotation.*; package foo; public interface NullableFunction { void fun(@Nullable Object o); }");
    myFixture.addClass("package foo; public interface AnyFunction { void fun(Object o); }");

    doTest();
  }

  public void testHonorThisParameterDefault() {
    DataFlowInspectionTest.addJavaxNullabilityAnnotations(myFixture);
    DataFlowInspectionTest.addJavaxDefaultNullabilityAnnotations(myFixture);
    myFixture.addFileToProject("foo/package-info.java", "@javax.annotation.ParametersAreNonnullByDefault package foo;");

    myFixture.configureFromExistingVirtualFile(myFixture.copyFileToProject(getTestName(false) + ".java", "foo/Classes.java"));
    myFixture.enableInspections(myInspection);
    myFixture.checkHighlighting(true, false, true);
  }

  public void testHonorCustomDefault() {
    DataFlowInspectionTest.addJavaxNullabilityAnnotations(myFixture);
    myFixture.addClass("package foo;" +
                       "import static java.lang.annotation.ElementType.*;" +
                       "@javax.annotation.meta.TypeQualifierDefault({PARAMETER, FIELD, METHOD, LOCAL_VARIABLE}) " +
                       "@javax.annotation.Nonnull " +
                       "public @interface NotNullByDefault {}");

    myFixture.addFileToProject("foo/package-info.java", "@NotNullByDefault package foo;");

    myFixture.configureFromExistingVirtualFile(myFixture.copyFileToProject(getTestName(false) + ".java", "foo/Classes.java"));
    myFixture.enableInspections(myInspection);
    myFixture.checkHighlighting(true, false, true);
  }

  public void testOverrideCustomDefault() {
    DataFlowInspectionTest.addJavaxNullabilityAnnotations(myFixture);
    myFixture.addClass("package custom;" +
                       "public @interface CheckForNull {}");

    final NullableNotNullManager nnnManager = NullableNotNullManager.getInstance(getProject());
    nnnManager.setNullables("custom.CheckForNull");
    Disposer.register(getTestRootDisposable(), new Disposable() {
      @Override
      public void dispose() {
        nnnManager.setNullables();
      }
    });

    myFixture.addClass("package foo;" +
                       "import static java.lang.annotation.ElementType.*;" +
                       "@javax.annotation.meta.TypeQualifierDefault(METHOD) " +
                       "@javax.annotation.Nonnull " +
                       "public @interface ReturnValuesAreNonnullByDefault {}");

    myFixture.addFileToProject("foo/package-info.java", "@ReturnValuesAreNonnullByDefault package foo;");

    myFixture.configureFromExistingVirtualFile(myFixture.copyFileToProject(getTestName(false) + ".java", "foo/Classes.java"));
    myFixture.enableInspections(myInspection);
    myFixture.checkHighlighting(true, false, true);
  }

  public void testNullPassedToNotNullParameter() {
    doTest();
  }

  public void testNullPassedToNotNullConstructorParameter() {
    doTest();
  }

  public void testNullPassedAsPartNotNullAnnotatedOfVarArg() {
    doTest();
  }

  public void testHonorParameterDefaultInSetters() {
    DataFlowInspectionTest.addJavaxNullabilityAnnotations(myFixture);
    DataFlowInspectionTest.addJavaxDefaultNullabilityAnnotations(myFixture);
    myFixture.addFileToProject("foo/package-info.java", "@javax.annotation.ParametersAreNonnullByDefault package foo;");

    myFixture.configureFromExistingVirtualFile(myFixture.copyFileToProject(getTestName(false) + ".java", "foo/Classes.java"));
    myFixture.enableInspections(myInspection);
    myFixture.checkHighlighting(true, false, true);
  }

}