| /* |
| * Copyright (c) 2014, 2016, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| /* |
| * @test |
| * @bug 8065360 |
| * @summary The test checks possibility of class members to be imported. |
| * @library /tools/lib |
| * @modules jdk.compiler/com.sun.tools.javac.api |
| * jdk.compiler/com.sun.tools.javac.main |
| * jdk.jdeps/com.sun.tools.javap |
| * @build toolbox.ToolBox ImportMembersTest |
| * @run main ImportMembersTest |
| */ |
| |
| import javax.tools.JavaCompiler; |
| import javax.tools.ToolProvider; |
| import java.io.StringWriter; |
| import java.util.ArrayList; |
| import java.util.Arrays; |
| import java.util.List; |
| |
| import toolbox.ToolBox; |
| |
| /** |
| * The test checks that members of a class, an enum, an interface or annotation |
| * can be imported with help of a static import or an import statement. |
| * The tests generates a code, compiles it and checks whether it can be compiled |
| * successfully or fails with a proper message. |
| * The following is the example of a test case: |
| * package pkg; |
| * class ChildA extends A {} |
| * |
| * package pkg; |
| * class A { |
| * static class Inner {} |
| * static Object field; |
| * static void method() {} |
| * } |
| * |
| * package pkg; |
| * import static pkg.ChildA.method; |
| * public class Test {{ |
| * method(); |
| * }} |
| * |
| */ |
| public class ImportMembersTest { |
| |
| private static final String[] expectedErrorMessages = { |
| "Test.java:\\d+:\\d+: compiler.err.cant.resolve.location: .*\n1 error\n", |
| "Test.java:\\d+:\\d+: compiler.err.import.requires.canonical: .*\n1 error\n" |
| }; |
| |
| private static final String sourceTemplate = |
| "package pkg;\n" + |
| "#IMPORT\n" + |
| "public class Test {{\n" + |
| " #STATEMENT\n" + |
| "}}\n"; |
| |
| public static void main(String[] args) { |
| new ImportMembersTest().test(); |
| } |
| |
| public void test() { |
| int passed = 0; |
| int total = 0; |
| for (ClassType classType : ClassType.values()) { |
| for (ImportType importType : ImportType.values()) { |
| for (MemberType memberType : MemberType.values()) { |
| ++total; |
| List<ToolBox.JavaSource> sources = classType.getSources(); |
| sources.add(new ToolBox.JavaSource("Test.java", |
| generateSource(classType, memberType, importType))); |
| |
| CompilationResult compilationResult = compile(sources); |
| boolean isErrorExpected = importType.hasError(classType, memberType); |
| if (!compilationResult.isSuccessful) { |
| if (isErrorExpected) { |
| String expectedErrorMessage = |
| getExpectedErrorMessage(classType, importType, memberType); |
| if (compilationResult.message.matches(expectedErrorMessage)) { |
| ++passed; |
| } else { |
| reportFailure(sources, String.format("Expected compilation failure message:\n" + |
| "%s\ngot message:\n%s", |
| expectedErrorMessage, compilationResult.message)); |
| } |
| } else { |
| reportFailure(sources, String.format("Unexpected compilation failure:\n%s", |
| compilationResult.message)); |
| } |
| } else { |
| if (isErrorExpected) { |
| reportFailure(sources, "Expected compilation failure."); |
| } else { |
| ++passed; |
| } |
| } |
| } |
| } |
| } |
| String message = String.format( |
| "Total test cases run: %d, passed: %d, failed: %d.", |
| total, passed, total - passed); |
| if (passed != total) { |
| throw new RuntimeException(message); |
| } |
| echo(message); |
| } |
| |
| private String getExpectedErrorMessage(ClassType classType, ImportType importType, MemberType memberType) { |
| String expectedErrorMessage; |
| if (importType == ImportType.IMPORT && classType == ClassType.CHILD_A && |
| memberType == MemberType.CLASS) { |
| expectedErrorMessage = expectedErrorMessages[1]; |
| } else { |
| expectedErrorMessage = expectedErrorMessages[0]; |
| } |
| return expectedErrorMessage; |
| } |
| |
| private void reportFailure(List<ToolBox.JavaSource> sources, String message) { |
| echo("Test case failed!"); |
| printSources(sources); |
| echo(message); |
| echo(); |
| } |
| |
| private String generateSource(ClassType classType, MemberType memberType, ImportType importType) { |
| String importString = importType.generateImport(classType.getClassName(), memberType.getMemberType()); |
| String statement; |
| if (importType.hasError(classType, memberType)) { |
| // if the source code has a compilation error, nothing is added. |
| // just to prevent the compiler from appending additional |
| // compilation errors to output |
| statement = ""; |
| } else if (memberType == MemberType.STAR) { |
| // in case of import-on-demand, every class member is used |
| if (importType == ImportType.STATIC_IMPORT) { |
| statement = MemberType.CLASS.getStatement() + "\n " |
| + MemberType.FIELD.getStatement(); |
| // an annotation does not have a static method. |
| if (classType != ClassType.D) { |
| statement += "\n " + MemberType.METHOD.getStatement() + "\n"; |
| } |
| } else { |
| statement = classType != ClassType.CHILD_A |
| ? MemberType.CLASS.getStatement() : ""; |
| } |
| } else { |
| statement = memberType.getStatement(); |
| } |
| return sourceTemplate |
| .replace("#IMPORT", importString) |
| .replace("#STATEMENT", statement); |
| } |
| |
| private static class CompilationResult { |
| public final boolean isSuccessful; |
| public final String message; |
| |
| public CompilationResult(boolean isSuccessful, String message) { |
| this.isSuccessful = isSuccessful; |
| this.message = message; |
| } |
| } |
| |
| private CompilationResult compile(List<ToolBox.JavaSource> sources) { |
| StringWriter writer = new StringWriter(); |
| JavaCompiler jc = ToolProvider.getSystemJavaCompiler(); |
| Boolean call = jc.getTask(writer, null, null, Arrays.asList("-XDrawDiagnostics"), null, sources).call(); |
| return new CompilationResult(call, writer.toString().replace(ToolBox.lineSeparator, "\n")); |
| } |
| |
| public void printSources(List<ToolBox.JavaSource> sources) { |
| for (ToolBox.JavaSource javaSource : sources) { |
| echo(javaSource.getCharContent(true).toString()); |
| } |
| } |
| |
| public void echo() { |
| echo(""); |
| } |
| |
| public void echo(String output) { |
| printf(output + "\n"); |
| } |
| |
| public void printf(String template, Object...args) { |
| System.err.print(String.format(template, args).replace("\n", ToolBox.lineSeparator)); |
| } |
| |
| enum ClassType { |
| A("A", |
| "package pkg;\n" + |
| "class A {\n" + |
| " static class Inner {}\n" + |
| " static Object field;\n" + |
| " static void method() {}\n" + |
| "}\n" |
| ), |
| B("B", |
| "package pkg;\n" + |
| "interface B {\n" + |
| " static class Inner {}\n" + |
| " static Object field = null;\n" + |
| " static void method() {}\n" + |
| "}\n" |
| ), |
| C("C", |
| "package pkg;\n" + |
| "enum C {field;\n" + |
| " static class Inner {}\n" + |
| " static void method() {}\n" + |
| "}\n" |
| ), |
| D("D", |
| "package pkg;\n" + |
| "@interface D {\n" + |
| " static class Inner {}\n" + |
| " static Object field = null;\n" + |
| "}\n" |
| ), |
| CHILD_A("ChildA", |
| "package pkg;\n" + |
| "class ChildA extends A {}\n", |
| A); |
| |
| private final String className; |
| private final String source; |
| private final ClassType parentType; |
| |
| private ClassType(String className, String source) { |
| this(className, source, null); |
| } |
| |
| private ClassType(String className, String source, ClassType classType) { |
| this.className = className; |
| this.source = source; |
| this.parentType = classType; |
| } |
| |
| public String getClassName() { |
| return className; |
| } |
| |
| public List<ToolBox.JavaSource> getSources() { |
| List<ToolBox.JavaSource> sourceList = new ArrayList<>(); |
| ClassType current = this; |
| while (current != null) { |
| sourceList.add(new ToolBox.JavaSource(current.className, current.source)); |
| current = current.parentType; |
| } |
| return sourceList; |
| } |
| } |
| |
| enum MemberType { |
| CLASS("Inner", "Inner inner = null;"), |
| FIELD("field", "Object o = field;"), |
| METHOD("method", "method();"), |
| STAR("*", ""), |
| NOT_EXIST("NotExist", ""); |
| |
| private final String memberType; |
| private final String statement; |
| |
| private MemberType(String memberType, String statement) { |
| this.memberType = memberType; |
| this.statement = statement; |
| } |
| |
| public String getStatement() { |
| return statement; |
| } |
| |
| public String getMemberType() { |
| return memberType; |
| } |
| } |
| |
| enum ImportType { |
| IMPORT("import pkg.#CLASS_NAME.#MEMBER_NAME;"), |
| STATIC_IMPORT("import static pkg.#CLASS_NAME.#MEMBER_NAME;"); |
| |
| private final String importType; |
| |
| private ImportType(String importType) { |
| this.importType = importType; |
| } |
| |
| public String generateImport(String className, String memberName) { |
| return importType |
| .replace("#CLASS_NAME", className) |
| .replace("#MEMBER_NAME", memberName); |
| } |
| |
| public boolean hasError(ClassType classType, MemberType memberType) { |
| switch (memberType) { |
| case FIELD: |
| return this != ImportType.STATIC_IMPORT; |
| case METHOD: |
| return this != ImportType.STATIC_IMPORT || classType == ClassType.D; |
| case NOT_EXIST: |
| return true; |
| case CLASS: |
| return classType.parentType != null && this != STATIC_IMPORT; |
| default: |
| return false; |
| } |
| } |
| } |
| } |