archive/jdk
1
0
Fork 0
mirror of https://github.com/openjdk/jdk.git synced 2025-09-20 11:04:34 +02:00
Code Issues Projects Releases Packages Wiki Activity Actions

8003280: Add lambda tests

Browse source 
Turn on lambda expression, method reference and default method support

Reviewed-by: jjg
This commit is contained in:
Maurizio Cimadamore 2012-11-17 19:01:03 +00:00
parent c39f1d99b4
commit a494f0ab86
451 changed files with 15433 additions and 488 deletions
Download patch file Download diff file Expand all files Collapse all files

246
langtools/test/tools/javac/lambda/LambdaConversionTest.java Normal file
View file

@ -0,0 +1,246 @@
/*
* Copyright (c) 2011, 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 8003280
* @summary Add lambda tests
* perform several automated checks in lambda conversion, esp. around accessibility
* @author Maurizio Cimadamore
* @run main LambdaConversionTest
*/
import com.sun.source.util.JavacTask;
import java.net.URI;
import java.util.Arrays;
import javax.tools.Diagnostic;
import javax.tools.JavaCompiler;
import javax.tools.JavaFileObject;
import javax.tools.SimpleJavaFileObject;
import javax.tools.ToolProvider;
public class LambdaConversionTest {
enum PackageKind {
NO_PKG(""),
PKG_A("a");
String pkg;
PackageKind(String pkg) {
this.pkg = pkg;
}
String getPkgDecl() {
return this == NO_PKG ?
"" :
"package " + pkg + ";";
}
String getImportStat() {
return this == NO_PKG ?
"" :
"import " + pkg + ".*;";
}
}
enum SamKind {
CLASS("public class Sam { }"),
ABSTACT_CLASS("public abstract class Sam { }"),
ANNOTATION("public @interface Sam { }"),
ENUM("public enum Sam { }"),
INTERFACE("public interface Sam { \n #METH; \n }");
String sam_str;
SamKind(String sam_str) {
this.sam_str = sam_str;
}
String getSam(String methStr) {
return sam_str.replaceAll("#METH", methStr);
}
}
enum ModifierKind {
PUBLIC("public"),
PACKAGE("");
String modifier_str;
ModifierKind(String modifier_str) {
this.modifier_str = modifier_str;
}
boolean stricterThan(ModifierKind that) {
return this.ordinal() > that.ordinal();
}
}
enum TypeKind {
EXCEPTION("Exception"),
PKG_CLASS("PackageClass");
String typeStr;
private TypeKind(String typeStr) {
this.typeStr = typeStr;
}
}
enum MethodKind {
NONE(""),
NON_GENERIC("public #R m(#ARG s) throws #T;"),
GENERIC("public <X> #R m(#ARG s) throws #T;");
String methodTemplate;
private MethodKind(String methodTemplate) {
this.methodTemplate = methodTemplate;
}
String getMethod(TypeKind retType, TypeKind argType, TypeKind thrownType) {
return methodTemplate.replaceAll("#R", retType.typeStr).
replaceAll("#ARG", argType.typeStr).
replaceAll("#T", thrownType.typeStr);
}
}
public static void main(String[] args) throws Exception {
for (PackageKind samPkg : PackageKind.values()) {
for (ModifierKind modKind : ModifierKind.values()) {
for (SamKind samKind : SamKind.values()) {
for (MethodKind meth : MethodKind.values()) {
for (TypeKind retType : TypeKind.values()) {
for (TypeKind argType : TypeKind.values()) {
for (TypeKind thrownType : TypeKind.values()) {
new LambdaConversionTest(samPkg, modKind, samKind,
meth, retType, argType, thrownType).test();
}
}
}
}
}
}
}
}
PackageKind samPkg;
ModifierKind modKind;
SamKind samKind;
MethodKind meth;
TypeKind retType;
TypeKind argType;
TypeKind thrownType;
SourceFile samSourceFile = new SourceFile("Sam.java", "#P \n #C") {
public String toString() {
return template.replaceAll("#P", samPkg.getPkgDecl()).
replaceAll("#C", samKind.getSam(meth.getMethod(retType, argType, thrownType)));
}
};
SourceFile pkgClassSourceFile = new SourceFile("PackageClass.java",
"#P\n #M class PackageClass extends Exception { }") {
public String toString() {
return template.replaceAll("#P", samPkg.getPkgDecl()).
replaceAll("#M", modKind.modifier_str);
}
};
SourceFile clientSourceFile = new SourceFile("Client.java",
"#I\n class Client { Sam s = x -> null; }") {
public String toString() {
return template.replaceAll("#I", samPkg.getImportStat());
}
};
LambdaConversionTest(PackageKind samPkg, ModifierKind modKind, SamKind samKind,
MethodKind meth, TypeKind retType, TypeKind argType, TypeKind thrownType) {
this.samPkg = samPkg;
this.modKind = modKind;
this.samKind = samKind;
this.meth = meth;
this.retType = retType;
this.argType = argType;
this.thrownType = thrownType;
}
void test() throws Exception {
final JavaCompiler tool = ToolProvider.getSystemJavaCompiler();
DiagnosticChecker dc = new DiagnosticChecker();
JavacTask ct = (JavacTask)tool.getTask(null, null, dc,
null, null, Arrays.asList(samSourceFile, pkgClassSourceFile, clientSourceFile));
ct.analyze();
if (dc.errorFound == checkSamConversion()) {
throw new AssertionError(samSourceFile + "\n\n" + pkgClassSourceFile + "\n\n" + clientSourceFile);
}
}
boolean checkSamConversion() {
if (samKind != SamKind.INTERFACE) {
//sam type must be an interface
return false;
} else if (meth != MethodKind.NON_GENERIC) {
//target method must be non-generic
return false;
} else if (samPkg != PackageKind.NO_PKG &&
modKind != ModifierKind.PUBLIC &&
(retType == TypeKind.PKG_CLASS ||
argType == TypeKind.PKG_CLASS ||
thrownType == TypeKind.PKG_CLASS)) {
//target must not contain inaccessible types
return false;
} else {
return true;
}
}
abstract class SourceFile extends SimpleJavaFileObject {
protected String template;
public SourceFile(String filename, String template) {
super(URI.create("myfo:/" + filename), JavaFileObject.Kind.SOURCE);
this.template = template;
}
@Override
public CharSequence getCharContent(boolean ignoreEncodingErrors) {
return toString();
}
public abstract String toString();
}
static class DiagnosticChecker implements javax.tools.DiagnosticListener<JavaFileObject> {
boolean errorFound = false;
public void report(Diagnostic<? extends JavaFileObject> diagnostic) {
if (diagnostic.getKind() == Diagnostic.Kind.ERROR) {
errorFound = true;
}
}
}
}