1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/test/tools/javac/processing/model/util/filter/TestIterables.java Wed Apr 27 01:34:52 2016 +0800
1.3 @@ -0,0 +1,122 @@
1.4 +/*
1.5 + * Copyright (c) 2006, 2010, Oracle and/or its affiliates. All rights reserved.
1.6 + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
1.7 + *
1.8 + * This code is free software; you can redistribute it and/or modify it
1.9 + * under the terms of the GNU General Public License version 2 only, as
1.10 + * published by the Free Software Foundation.
1.11 + *
1.12 + * This code is distributed in the hope that it will be useful, but WITHOUT
1.13 + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
1.14 + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
1.15 + * version 2 for more details (a copy is included in the LICENSE file that
1.16 + * accompanied this code).
1.17 + *
1.18 + * You should have received a copy of the GNU General Public License version
1.19 + * 2 along with this work; if not, write to the Free Software Foundation,
1.20 + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
1.21 + *
1.22 + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
1.23 + * or visit www.oracle.com if you need additional information or have any
1.24 + * questions.
1.25 + */
1.26 +
1.27 +/*
1.28 + * @test
1.29 + * @bug 6406164
1.30 + * @summary Test that ElementFilter iterable methods behave properly.
1.31 + * @author Joseph D. Darcy
1.32 + * @library /tools/javac/lib
1.33 + * @build JavacTestingAbstractProcessor
1.34 + * @compile TestIterables.java
1.35 + * @compile -processor TestIterables -proc:only Foo1.java
1.36 + * @compile Foo1.java
1.37 + * @compile -processor TestIterables Foo1 TestIterables.java
1.38 + */
1.39 +
1.40 +import java.util.Set;
1.41 +import java.util.HashSet;
1.42 +import java.util.Arrays;
1.43 +import java.util.Iterator;
1.44 +import javax.annotation.processing.*;
1.45 +import javax.lang.model.SourceVersion;
1.46 +import static javax.lang.model.SourceVersion.*;
1.47 +import javax.lang.model.element.*;
1.48 +import javax.lang.model.util.*;
1.49 +import static javax.tools.Diagnostic.Kind.*;
1.50 +
1.51 +import static javax.lang.model.util.ElementFilter.*;
1.52 +
1.53 +/**
1.54 + * Verify that the {@code ElementFilter} methods taking iterables
1.55 + * behave correctly by comparing ExpectedElementCounts with actual
1.56 + * results.
1.57 + */
1.58 +@SupportedAnnotationTypes("ExpectedElementCounts")
1.59 +@ExpectedElementCounts(methods=2)
1.60 +public class TestIterables extends JavacTestingAbstractProcessor {
1.61 + public boolean process(Set<? extends TypeElement> annotations,
1.62 + RoundEnvironment roundEnv) {
1.63 + if (!roundEnv.processingOver()) {
1.64 + boolean error = false;
1.65 + int topLevelCount = 0;
1.66 +
1.67 + for (TypeElement type : typesIn(roundEnv.getRootElements())) {
1.68 + topLevelCount++;
1.69 + ExpectedElementCounts elementCounts = type.getAnnotation(ExpectedElementCounts.class);
1.70 + if (elementCounts == null)
1.71 + throw new RuntimeException("Missing ExpectedElementCounts annotation!");
1.72 +
1.73 + Iterable<? extends Element> irritable = type.getEnclosedElements();
1.74 +
1.75 + int constructorCount = getCount(constructorsIn(irritable));
1.76 + int fieldCount = getCount(fieldsIn(irritable));
1.77 + int methodCount = getCount(methodsIn(irritable));
1.78 + int typeCount = getCount(typesIn(irritable));
1.79 +
1.80 + System.out.println("\nType: " + type.getQualifiedName());
1.81 + System.out.format("Element Actual\tExpected%n");
1.82 + System.out.format("constructors %d\t\t%d%n", constructorCount, elementCounts.constructors());
1.83 + System.out.format("fields %d\t\t%d%n", fieldCount, elementCounts.fields());
1.84 + System.out.format("methods %d\t\t%d%n", methodCount, elementCounts.methods());
1.85 + System.out.format("types %d\t\t%d%n", typeCount, elementCounts.types());
1.86 +
1.87 + if ((constructorCount != elementCounts.constructors()) ||
1.88 + (fieldCount != elementCounts.fields()) ||
1.89 + (methodCount != elementCounts.methods()) ||
1.90 + (typeCount != elementCounts.types()) )
1.91 + error = true;
1.92 + }
1.93 +
1.94 + if (topLevelCount == 0)
1.95 + error = true;
1.96 +
1.97 + if (error)
1.98 + throw new RuntimeException("A count mismatch has occured.");
1.99 + }
1.100 +
1.101 + return true;
1.102 + }
1.103 +
1.104 + private int getCount(Iterable<? extends Element> iter) {
1.105 + int count1 = 0;
1.106 + int count2 = 0;
1.107 +
1.108 + Iterator<? extends Element> iterator = iter.iterator();
1.109 + while (iterator.hasNext() ) {
1.110 + count1++;
1.111 + iterator.next();
1.112 + }
1.113 +
1.114 + iterator = iter.iterator();
1.115 + while (iterator.hasNext() ) {
1.116 + count2++;
1.117 + iterator.next();
1.118 + }
1.119 +
1.120 + if (count1 != count2)
1.121 + throw new RuntimeException("Inconsistent counts from iterator.");
1.122 +
1.123 + return count1;
1.124 + }
1.125 +}
