jdk/test/java/lang/annotation/AnnotationToStringTest.java
changeset 40116 9bde91c0d0ef
child 41882 0549e50db4bf
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/jdk/test/java/lang/annotation/AnnotationToStringTest.java	Wed Aug 03 08:13:45 2016 -0700
@@ -0,0 +1,293 @@
+/*
+ * Copyright (c) 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 8162817
+ * @summary Test of toString on normal annotations
+ */
+
+import java.lang.annotation.*;
+import java.lang.reflect.*;
+import java.util.*;
+
+/**
+ * The expected string values are stored in @ExpectedString
+ * annotations. The essence of the test is comparing the toString()
+ * result of annotations to the corresponding ExpectedString.value().
+ */
+
+public class AnnotationToStringTest {
+    public static void main(String... args) throws Exception {
+        int failures = 0;
+
+        failures += check(PrimHost.class.getAnnotation(ExpectedString.class).value(),
+                          PrimHost.class.getAnnotation(MostlyPrimitive.class).toString());
+        failures += classyTest();
+        failures += arrayAnnotationTest();
+
+        if (failures > 0)
+            throw new RuntimeException(failures + " failures");
+    }
+
+    private static int check(String expected, String actual) {
+        if (!expected.equals(actual)) {
+            System.err.printf("ERROR: Expected ''%s'';%ngot             ''%s''.\n",
+                              expected, actual);
+            return 1;
+        } else
+            return 0;
+    }
+
+    @ExpectedString(
+        "@MostlyPrimitive(c0='a', "+
+        "c1='\\'', " +
+        "i0=1, " +
+        "i1=2, " +
+        "f0=1.0f, " +
+        "f1=0.0f/0.0f, " +
+        "d0=0.0, " +
+        "d1=1.0/0.0, " +
+        "l0=5, " +
+        "l1=9223372036854775807L, " +
+        "s0=\"Hello world.\", " +
+        "s1=\"a\\\"b\", " +
+        "class0=Obj[].class)")
+    @MostlyPrimitive(
+        c0='a',
+        c1='\'',
+        i0=1,
+        i1=2,
+        f0=1.0f,
+        f1=Float.NaN,
+        d0=0.0,
+        d1=2.0/0.0,
+        l0=5,
+        l1=Long.MAX_VALUE,
+        s0="Hello world.",
+        s1="a\"b",
+        class0=Obj[].class
+    )
+    static class PrimHost{}
+
+    private static int classyTest() {
+        int failures = 0;
+        for (Field f : AnnotationHost.class.getFields()) {
+            Annotation a = f.getAnnotation(Classy.class);
+            System.out.println(a);
+            failures += check(f.getAnnotation(ExpectedString.class).value(),
+                              a.toString());
+        }
+        return failures;
+    }
+
+    static class AnnotationHost {
+        @ExpectedString(
+       "@Classy(value=Obj.class)")
+        @Classy(value=Obj.class)
+        public int f0;
+
+        @ExpectedString(
+       "@Classy(value=Obj[].class)")
+        @Classy(value=Obj[].class)
+        public int f1;
+
+        @ExpectedString(
+       "@Classy(value=Obj[][].class)")
+        @Classy(value=Obj[][].class)
+        public int f2;
+
+        @ExpectedString(
+       "@Classy(value=Obj[][][].class)")
+        @Classy(value=Obj[][][].class)
+        public int f3;
+
+        @ExpectedString(
+       "@Classy(value=int.class)")
+        @Classy(value=int.class)
+        public int f4;
+
+        @ExpectedString(
+       "@Classy(value=int[][][].class)")
+        @Classy(value=int[][][].class)
+        public int f5;
+    }
+
+    /**
+     * Each field should have two annotations, the first being
+     * @ExpectedString and the second the annotation under test.
+     */
+    private static int arrayAnnotationTest() {
+        int failures = 0;
+        for (Field f : ArrayAnnotationHost.class.getFields()) {
+            Annotation[] annotations = f.getAnnotations();
+            System.out.println(annotations[1]);
+            failures += check(((ExpectedString)annotations[0]).value(),
+                              annotations[1].toString());
+        }
+        return failures;
+    }
+
+    static class ArrayAnnotationHost {
+        @ExpectedString(
+       "@BooleanArray(value={true, false, true})")
+        @BooleanArray(value={true, false, true})
+        public boolean[]   f0;
+
+        @ExpectedString(
+       "@FloatArray(value={3.0f, 4.0f, 0.0f/0.0f, -1.0f/0.0f, 1.0f/0.0f})")
+        @FloatArray(value={3.0f, 4.0f, Float.NaN, Float.NEGATIVE_INFINITY, Float.POSITIVE_INFINITY})
+        public float[]     f1;
+
+        @ExpectedString(
+       "@DoubleArray(value={1.0, 2.0, 0.0/0.0, 1.0/0.0, -1.0/0.0})")
+        @DoubleArray(value={1.0, 2.0, Double.NaN, Double.POSITIVE_INFINITY, Double.NEGATIVE_INFINITY,})
+        public double[]    f2;
+
+        @ExpectedString(
+       "@ByteArray(value={10, 11, 12})")
+        @ByteArray(value={10, 11, 12})
+        public byte[]      f3;
+
+        @ExpectedString(
+       "@ShortArray(value={0, 4, 5})")
+        @ShortArray(value={0, 4, 5})
+        public short[]     f4;
+
+        @ExpectedString(
+       "@CharArray(value={'a', 'b', 'c', '\\''})")
+        @CharArray(value={'a', 'b', 'c', '\''})
+        public char[]      f5;
+
+        @ExpectedString(
+       "@IntArray(value={1})")
+        @IntArray(value={1})
+        public int[]       f6;
+
+        @ExpectedString(
+       "@LongArray(value={-2147483647, 2147483648L, 9223372036854775807L})")
+        @LongArray(value={-Integer.MAX_VALUE, Integer.MAX_VALUE+1L, Long.MAX_VALUE})
+        public long[]      f7;
+
+        @ExpectedString(
+       "@StringArray(value={\"A\", \"B\", \"C\", \"\\\"Quote\\\"\"})")
+        @StringArray(value={"A", "B", "C", "\"Quote\""})
+        public String[]    f8;
+
+        @ExpectedString(
+       "@ClassArray(value={int.class, Obj[].class})")
+        @ClassArray(value={int.class, Obj[].class})
+        public Class<?>[]  f9;
+
+        @ExpectedString(
+       "@EnumArray(value={SOURCE})")
+        @EnumArray(value={RetentionPolicy.SOURCE})
+        public RetentionPolicy[]  f10;
+    }
+}
+
+// ------------ Supporting types ------------
+
+class Obj {}
+
+@Retention(RetentionPolicy.RUNTIME)
+@interface ExpectedString {
+    String value();
+}
+
+@Retention(RetentionPolicy.RUNTIME)
+@interface Classy {
+    Class<?> value();
+}
+
+@Retention(RetentionPolicy.RUNTIME)
+@interface BooleanArray {
+    boolean[] value();
+}
+
+@Retention(RetentionPolicy.RUNTIME)
+@interface FloatArray {
+    float[] value();
+}
+
+@Retention(RetentionPolicy.RUNTIME)
+@interface DoubleArray {
+    double[] value();
+}
+
+@Retention(RetentionPolicy.RUNTIME)
+@interface ByteArray {
+    byte[] value();
+}
+
+@Retention(RetentionPolicy.RUNTIME)
+@interface ShortArray {
+    short[] value();
+}
+
+@Retention(RetentionPolicy.RUNTIME)
+@interface CharArray {
+    char[] value();
+}
+
+@Retention(RetentionPolicy.RUNTIME)
+@interface IntArray {
+    int[] value();
+}
+
+@Retention(RetentionPolicy.RUNTIME)
+@interface LongArray {
+    long[] value();
+}
+
+@Retention(RetentionPolicy.RUNTIME)
+@interface ClassArray {
+    Class<?>[] value() default {int.class, Obj[].class};
+}
+
+@Retention(RetentionPolicy.RUNTIME)
+@interface StringArray {
+    String[] value();
+}
+
+@Retention(RetentionPolicy.RUNTIME)
+@interface EnumArray {
+    RetentionPolicy[] value();
+}
+
+@Retention(RetentionPolicy.RUNTIME)
+@interface MostlyPrimitive {
+    char   c0();
+    char   c1();
+    int    i0();
+    int    i1();
+    float  f0();
+    float  f1();
+    double d0();
+    double d1();
+    long   l0();
+    long   l1();
+    String s0();
+    String s1();
+    Class<?> class0();
+}