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/*******************************************************************************
* Copyright (c) 2021 IBM Corporation and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* https://www.eclipse.org/legal/epl-2.0/
*
* SPDX-License-Identifier: EPL-2.0
*
* This is an implementation of an early-draft specification developed under the Java
* Community Process (JCP) and is made available for testing and evaluation purposes
* only. The code is not compatible with any specification of the JCP.
*
* Contributors:
* IBM Corporation - initial API and implementation
*******************************************************************************/
package org.eclipse.jdt.core.tests.compiler.regression;
import java.util.Map;
import org.eclipse.jdt.internal.compiler.classfmt.ClassFileConstants;
import org.eclipse.jdt.internal.compiler.impl.CompilerOptions;
import org.eclipse.jdt.internal.compiler.impl.JavaFeature;
import junit.framework.Test;
public class PreviewFeatureTest extends AbstractRegressionTest9 {
static {
// TESTS_NUMBERS = new int [] { 40 };
// TESTS_RANGE = new int[] { 1, -1 };
// TESTS_NAMES = new String[] { "test001"};
}
public static Class<?> testClass() {
return PreviewFeatureTest.class;
}
public static Test suite() {
return buildMinimalComplianceTestSuite(testClass(), F_16);
}
public PreviewFeatureTest(String testName){
super(testName);
}
@Override
protected Map<String, String> getCompilerOptions() {
Map<String, String> options = super.getCompilerOptions();
if (isJRE17Plus) {
options.put(CompilerOptions.OPTION_Release, CompilerOptions.ENABLED);
}
return options;
}
/*
* Preview API, --enable-preview=false, SuppressWarning=No
*/
public void test001() {
if (this.complianceLevel >= ClassFileConstants.JDK17) {
return;
}
Map<String, String> options = getCompilerOptions();
String old = options.get(CompilerOptions.OPTION_EnablePreviews);
options.put(CompilerOptions.OPTION_EnablePreviews, CompilerOptions.DISABLED);
try {
runNegativeTest(
new String[] {
"X.java",
"import javax.lang.model.element.Modifier;\n"+
"public class X {\n"+
" Zork z = null;\n" +
"public Modifier getModifier() {\n"+
" return Modifier.SEALED;\n"+
" }\n"+
" public Class<?>[] getPermittedClasses() {\n"+
" return this.getClass().getPermittedSubclasses();\n"+
" }\n"+
"}\n",
},
"----------\n" +
"1. ERROR in X.java (at line 3)\n" +
" Zork z = null;\n" +
" ^^^^\n" +
"Zork cannot be resolved to a type\n" +
"----------\n" +
"2. WARNING in X.java (at line 5)\n" +
" return Modifier.SEALED;\n" +
" ^^^^^^^^^^^^^^^\n" +
"You are using an API that is part of a preview feature and may be removed in future\n" +
"----------\n" +
"3. WARNING in X.java (at line 8)\n" +
" return this.getClass().getPermittedSubclasses();\n" +
" ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^\n" +
"You are using an API that is part of a preview feature and may be removed in future\n" +
"----------\n",
null,
true,
options);
} finally {
options.put(CompilerOptions.OPTION_EnablePreviews, old);
}
}
/*
* Preview API, --enable-preview=false, SuppressWarning=yes
*/
public void test002() {
if (this.complianceLevel >= ClassFileConstants.JDK17) {
return;
}
Map<String, String> options = getCompilerOptions();
String old = options.get(CompilerOptions.OPTION_EnablePreviews);
options.put(CompilerOptions.OPTION_EnablePreviews, CompilerOptions.DISABLED);
try {
runNegativeTest(
new String[] {
"X.java",
"import javax.lang.model.element.Modifier;\n"+
"@SuppressWarnings(\"preview\")\n"+
"public class X {\n"+
" Zork z = null;\n" +
"public Modifier getModifier() {\n"+
" return Modifier.SEALED;\n"+
" }\n"+
" public Class<?>[] getPermittedClasses() {\n"+
" return this.getClass().getPermittedSubclasses();\n"+
" }\n"+
"}\n",
},
"----------\n" +
"1. ERROR in X.java (at line 4)\n" +
" Zork z = null;\n" +
" ^^^^\n" +
"Zork cannot be resolved to a type\n" +
"----------\n",
null,
true,
options);
} finally {
options.put(CompilerOptions.OPTION_EnablePreviews, old);
}
}
/*
* Preview API, --enable-preview=true, SuppressWarning=No
*/
public void test003() {
if (this.complianceLevel < ClassFileConstants.getLatestJDKLevel())
return;
Map<String, String> options = getCompilerOptions();
String old = options.get(CompilerOptions.OPTION_EnablePreviews);
options.put(CompilerOptions.OPTION_EnablePreviews, CompilerOptions.ENABLED);
try {
runNegativeTest(
new String[] {
"X.java",
"import javax.lang.model.element.Modifier;\n"+
"public class X {\n"+
" Zork z = null;\n" +
"public Modifier getModifier() {\n"+
" return Modifier.SEALED;\n"+
" }\n"+
" public Class<?>[] getPermittedClasses() {\n"+
" return this.getClass().getPermittedSubclasses();\n"+
" }\n"+
"}\n",
},
"----------\n" +
"1. ERROR in X.java (at line 3)\n" +
" Zork z = null;\n" +
" ^^^^\n" +
"Zork cannot be resolved to a type\n" +
"----------\n",
null,
true,
options);
} finally {
options.put(CompilerOptions.OPTION_EnablePreviews, old);
}
}
/*
* Preview API, --enable-preview=true, SuppressWarning=Yes
*/
public void test004() {
if (this.complianceLevel < ClassFileConstants.getLatestJDKLevel())
return;
Map<String, String> options = getCompilerOptions();
String old = options.get(CompilerOptions.OPTION_EnablePreviews);
options.put(CompilerOptions.OPTION_EnablePreviews, CompilerOptions.ENABLED);
try {
runNegativeTest(
new String[] {
"X.java",
"import javax.lang.model.element.Modifier;\n"+
"@SuppressWarnings(\"preview\")\n"+
"public class X {\n"+
" Zork z = null;\n" +
"public Modifier getModifier() {\n"+
" return Modifier.SEALED;\n"+
" }\n"+
" public Class<?>[] getPermittedClasses() {\n"+
" return this.getClass().getPermittedSubclasses();\n"+
" }\n"+
"}\n",
},
"----------\n" +
"1. ERROR in X.java (at line 4)\n" +
" Zork z = null;\n" +
" ^^^^\n" +
"Zork cannot be resolved to a type\n" +
"----------\n",
null,
true,
options);
} finally {
options.put(CompilerOptions.OPTION_EnablePreviews, old);
}
}
public void test005() {
if (this.complianceLevel < ClassFileConstants.JDK16)
return;
Map<String, String> options = getCompilerOptions();
String old = options.get(CompilerOptions.OPTION_EnablePreviews);
if (this.complianceLevel == ClassFileConstants.getLatestJDKLevel())
options.put(CompilerOptions.OPTION_EnablePreviews, CompilerOptions.ENABLED);
try {
if (this.complianceLevel < ClassFileConstants.getLatestJDKLevel())
assertFalse(JavaFeature.PATTERN_MATCHING_IN_SWITCH.isSupported(new CompilerOptions(options)));
else
assertTrue(JavaFeature.PATTERN_MATCHING_IN_SWITCH.isSupported(new CompilerOptions(options)));
} finally {
options.put(CompilerOptions.OPTION_EnablePreviews, old);
}
}
}
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