nio/Buffer/BasicChar.java

	BasicChar.java revision 721
286N/A/*
286N/A * Copyright 2000-2007 Sun Microsystems, Inc.  All Rights Reserved.
286N/A * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
286N/A *
286N/A * This code is free software; you can redistribute it and/or modify it
286N/A * under the terms of the GNU General Public License version 2 only, as
286N/A * published by the Free Software Foundation.
286N/A *
286N/A * This code is distributed in the hope that it will be useful, but WITHOUT
286N/A * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
286N/A * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
286N/A * version 2 for more details (a copy is included in the LICENSE file that
286N/A * accompanied this code).
286N/A *
286N/A * You should have received a copy of the GNU General Public License version
286N/A * 2 along with this work; if not, write to the Free Software Foundation,
286N/A * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
286N/A *
286N/A * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
286N/A * CA 95054 USA or visit www.sun.com if you need additional information or
286N/A * have any questions.
286N/A */
286N/A
286N/A/* Type-specific source code for unit test
286N/A *
286N/A * Regenerate the BasicX classes via genBasic.sh whenever this file changes.
286N/A * We check in the generated source files so that the test tree can be used
286N/A * independently of the rest of the source tree.
286N/A */
286N/A
286N/A// -- This file was mechanically generated: Do not edit! -- //
286N/A
286N/Aimport java.nio.*;
286N/Aimport java.lang.reflect.Method;
286N/A
286N/A
286N/Apublic class BasicChar
286N/A    extends Basic
286N/A{
286N/A
286N/A    private static void relGet(CharBuffer b) {
286N/A        int n = b.capacity();
286N/A        char v;
286N/A        for (int i = 0; i < n; i++)
286N/A            ck(b, (long)b.get(), (long)((char)ic(i)));
286N/A        b.rewind();
286N/A    }
286N/A
286N/A    private static void relGet(CharBuffer b, int start) {
286N/A        int n = b.remaining();
286N/A        char v;
286N/A        for (int i = start; i < n; i++)
286N/A            ck(b, (long)b.get(), (long)((char)ic(i)));
286N/A        b.rewind();
286N/A    }
286N/A
286N/A    private static void absGet(CharBuffer b) {
286N/A        int n = b.capacity();
286N/A        char v;
286N/A        for (int i = 0; i < n; i++)
286N/A            ck(b, (long)b.get(), (long)((char)ic(i)));
286N/A        b.rewind();
286N/A    }
286N/A
286N/A    private static void bulkGet(CharBuffer b) {
286N/A        int n = b.capacity();
286N/A        char[] a = new char[n + 7];
286N/A        b.get(a, 7, n);
286N/A        for (int i = 0; i < n; i++)
286N/A            ck(b, (long)a[i + 7], (long)((char)ic(i)));
286N/A    }
286N/A
286N/A    private static void relPut(CharBuffer b) {
286N/A        int n = b.capacity();
286N/A        b.clear();
286N/A        for (int i = 0; i < n; i++)
286N/A            b.put((char)ic(i));
286N/A        b.flip();
286N/A    }
286N/A
286N/A    private static void absPut(CharBuffer b) {
286N/A        int n = b.capacity();
286N/A        b.clear();
286N/A        for (int i = 0; i < n; i++)
286N/A            b.put(i, (char)ic(i));
286N/A        b.limit(n);
286N/A        b.position(0);
286N/A    }
286N/A
286N/A    private static void bulkPutArray(CharBuffer b) {
286N/A        int n = b.capacity();
286N/A        b.clear();
286N/A        char[] a = new char[n + 7];
286N/A        for (int i = 0; i < n; i++)
286N/A            a[i + 7] = (char)ic(i);
286N/A        b.put(a, 7, n);
286N/A        b.flip();
286N/A    }
286N/A
286N/A    private static void bulkPutBuffer(CharBuffer b) {
286N/A        int n = b.capacity();
286N/A        b.clear();
286N/A        CharBuffer c = CharBuffer.allocate(n + 7);
286N/A        c.position(7);
286N/A        for (int i = 0; i < n; i++)
286N/A            c.put((char)ic(i));
286N/A        c.flip();
286N/A        c.position(7);
286N/A        b.put(c);
286N/A        b.flip();
286N/A    }
286N/A
286N/A    //6231529
286N/A    private static void callReset(CharBuffer b) {
286N/A        b.position(0);
286N/A        b.mark();
286N/A
286N/A        b.duplicate().reset();
286N/A        b.asReadOnlyBuffer().reset();
286N/A    }
286N/A
286N/A
286N/A
286N/A    // 6221101-6234263
286N/A
286N/A    private static void putBuffer() {
286N/A        final int cap = 10;
286N/A
286N/A        CharBuffer direct1 = ByteBuffer.allocateDirect(cap).asCharBuffer();
286N/A        CharBuffer nondirect1 = ByteBuffer.allocate(cap).asCharBuffer();
286N/A        direct1.put(nondirect1);
286N/A
286N/A        CharBuffer direct2 = ByteBuffer.allocateDirect(cap).asCharBuffer();
286N/A        CharBuffer nondirect2 = ByteBuffer.allocate(cap).asCharBuffer();
286N/A        nondirect2.put(direct2);
286N/A
286N/A        CharBuffer direct3 = ByteBuffer.allocateDirect(cap).asCharBuffer();
286N/A        CharBuffer direct4 = ByteBuffer.allocateDirect(cap).asCharBuffer();
286N/A        direct3.put(direct4);
286N/A
286N/A        CharBuffer nondirect3 = ByteBuffer.allocate(cap).asCharBuffer();
286N/A        CharBuffer nondirect4 = ByteBuffer.allocate(cap).asCharBuffer();
286N/A        nondirect3.put(nondirect4);
286N/A    }
286N/A
286N/A
286N/A
286N/A
286N/A    private static void bulkPutString(CharBuffer b) {
286N/A        int n = b.capacity();
286N/A        b.clear();
286N/A        StringBuffer sb = new StringBuffer(n + 7);
286N/A        sb.append("1234567");
286N/A        for (int i = 0; i < n; i++)
286N/A            sb.append((char)ic(i));
286N/A        b.put(sb.toString(), 7, 7 + n);
286N/A        b.flip();
286N/A    }
286N/A
286N/A
286N/A
286N/A    private static void checkSlice(CharBuffer b, CharBuffer slice) {
286N/A        ck(slice, 0, slice.position());
286N/A        ck(slice, b.remaining(), slice.limit());
286N/A        ck(slice, b.remaining(), slice.capacity());
286N/A        if (b.isDirect() != slice.isDirect())
286N/A            fail("Lost direction", slice);
286N/A        if (b.isReadOnly() != slice.isReadOnly())
286N/A            fail("Lost read-only", slice);
286N/A    }
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286N/A    private static void tryCatch(Buffer b, Class ex, Runnable thunk) {
286N/A        boolean caught = false;
286N/A        try {
286N/A            thunk.run();
286N/A        } catch (Throwable x) {
286N/A            if (ex.isAssignableFrom(x.getClass())) {
286N/A                caught = true;
286N/A            } else {
286N/A                fail(x.getMessage() + " not expected");
286N/A            }
286N/A        }
286N/A        if (!caught)
286N/A            fail(ex.getName() + " not thrown", b);
286N/A    }
286N/A
286N/A    private static void tryCatch(char [] t, Class ex, Runnable thunk) {
        tryCatch(CharBuffer.wrap(t), ex, thunk);
    }

    public static void test(int level, final CharBuffer b, boolean direct) {

        show(level, b);

        if (direct != b.isDirect())
            fail("Wrong direction", b);

        // Gets and puts

        relPut(b);
        relGet(b);
        absGet(b);
        bulkGet(b);

        absPut(b);
        relGet(b);
        absGet(b);
        bulkGet(b);

        bulkPutArray(b);
        relGet(b);

        bulkPutBuffer(b);
        relGet(b);


        bulkPutString(b);
        relGet(b);
        b.position(1);
        b.limit(7);
        ck(b, b.toString().equals("bcdefg"));

        // CharSequence ops

        b.position(2);
        ck(b, b.charAt(1), 'd');
        CharBuffer c = (CharBuffer)b.subSequence(1, 4);
        ck(b, b.subSequence(1, 4).toString().equals("def"));

        // 4938424
        b.position(4);
        ck(b, b.charAt(1), 'f');
        ck(b, b.subSequence(1, 3).toString().equals("fg"));


        // Compact

        relPut(b);
        b.position(13);
        b.compact();
        b.flip();
        relGet(b, 13);

        // Exceptions

        relPut(b);
        b.limit(b.capacity() / 2);
        b.position(b.limit());

        tryCatch(b, BufferUnderflowException.class, new Runnable() {
                public void run() {
                    b.get();
                }});

        tryCatch(b, BufferOverflowException.class, new Runnable() {
                public void run() {
                    b.put((char)42);
                }});

        // The index must be non-negative and lesss than the buffer's limit.
        tryCatch(b, IndexOutOfBoundsException.class, new Runnable() {
                public void run() {
                    b.get(b.limit());
                }});
        tryCatch(b, IndexOutOfBoundsException.class, new Runnable() {
                public void run() {
                    b.get(-1);
                }});

        tryCatch(b, IndexOutOfBoundsException.class, new Runnable() {
                public void run() {
                    b.put(b.limit(), (char)42);
                }});

        tryCatch(b, InvalidMarkException.class, new Runnable() {
                public void run() {
                    b.position(0);
                    b.mark();
                    b.compact();
                    b.reset();
                }});

        // Values

        b.clear();
        b.put((char)0);
        b.put((char)-1);
        b.put((char)1);
        b.put(Character.MAX_VALUE);
        b.put(Character.MIN_VALUE);


        char v;
        b.flip();
        ck(b, b.get(), 0);
        ck(b, b.get(), (char)-1);
        ck(b, b.get(), 1);
        ck(b, b.get(), Character.MAX_VALUE);
        ck(b, b.get(), Character.MIN_VALUE);


        // Comparison
        b.rewind();
        CharBuffer b2 = CharBuffer.allocate(b.capacity());
        b2.put(b);
        b2.flip();
        b.position(2);
        b2.position(2);
        if (!b.equals(b2)) {
            for (int i = 2; i < b.limit(); i++) {
                char x = b.get(i);
                char y = b2.get(i);
                if (x != y


                    )
                    out.println("[" + i + "] " + x + " != " + y);
            }
            fail("Identical buffers not equal", b, b2);
        }
        if (b.compareTo(b2) != 0)
            fail("Comparison to identical buffer != 0", b, b2);

        b.limit(b.limit() + 1);
        b.position(b.limit() - 1);
        b.put((char)99);
        b.rewind();
        b2.rewind();
        if (b.equals(b2))
            fail("Non-identical buffers equal", b, b2);
        if (b.compareTo(b2) <= 0)
            fail("Comparison to shorter buffer <= 0", b, b2);
        b.limit(b.limit() - 1);

        b.put(2, (char)42);
        if (b.equals(b2))
            fail("Non-identical buffers equal", b, b2);
        if (b.compareTo(b2) <= 0)
            fail("Comparison to lesser buffer <= 0", b, b2);

        // Sub, dup

        relPut(b);
        relGet(b.duplicate());
        b.position(13);
        relGet(b.duplicate(), 13);
        relGet(b.duplicate().slice(), 13);
        relGet(b.slice(), 13);
        relGet(b.slice().duplicate(), 13);

        // Slice

        b.position(5);
        CharBuffer sb = b.slice();
        checkSlice(b, sb);
        b.position(0);
        CharBuffer sb2 = sb.slice();
        checkSlice(sb, sb2);

        if (!sb.equals(sb2))
            fail("Sliced slices do not match", sb, sb2);
        if ((sb.hasArray()) && (sb.arrayOffset() != sb2.arrayOffset()))
            fail("Array offsets do not match: "
                 + sb.arrayOffset() + " != " + sb2.arrayOffset(), sb, sb2);


        // Read-only views

        b.rewind();
        final CharBuffer rb = b.asReadOnlyBuffer();
        if (!b.equals(rb))
            fail("Buffer not equal to read-only view", b, rb);
        show(level + 1, rb);

        tryCatch(b, ReadOnlyBufferException.class, new Runnable() {
                public void run() {
                    relPut(rb);
                }});

        tryCatch(b, ReadOnlyBufferException.class, new Runnable() {
                public void run() {
                    absPut(rb);
                }});

        tryCatch(b, ReadOnlyBufferException.class, new Runnable() {
                public void run() {
                    bulkPutArray(rb);
                }});

        tryCatch(b, ReadOnlyBufferException.class, new Runnable() {
                public void run() {
                    bulkPutBuffer(rb);
                }});

        tryCatch(b, ReadOnlyBufferException.class, new Runnable() {
                public void run() {
                    rb.compact();
                }});


        if (rb.getClass().getName().startsWith("java.nio.Heap")) {

            tryCatch(b, ReadOnlyBufferException.class, new Runnable() {
                    public void run() {
                        rb.array();
                    }});

            tryCatch(b, ReadOnlyBufferException.class, new Runnable() {
                    public void run() {
                        rb.arrayOffset();
                    }});

            if (rb.hasArray())
                fail("Read-only heap buffer's backing array is accessible",
                     rb);

        }

        // Bulk puts from read-only buffers

        b.clear();
        rb.rewind();
        b.put(rb);


        relPut(b);                       // Required by testViews

    }


    private static void testStr() {
        final String s = "abcdefghijklm";
        int start = 3;
        int end = 9;
        final CharBuffer b = CharBuffer.wrap(s, start, end);
        show(0, b);
        ck(b, b.toString().equals(s.substring(start, end)));
        ck(b, b.toString().equals("defghi"));
        ck(b, b.isReadOnly());
        tryCatch(b, ReadOnlyBufferException.class, new Runnable() {
                public void run() {
                    b.put('x');
                }});
        ck(b, start, b.position());
        ck(b, end, b.limit());
        ck(b, s.length(), b.capacity());

        // The index, relative to the position, must be non-negative and
        // smaller than remaining().
        tryCatch(b, IndexOutOfBoundsException.class, new Runnable() {
                public void run() {
                    b.charAt(-1);
                }});
        tryCatch(b, IndexOutOfBoundsException.class, new Runnable() {
                public void run() {
                    b.charAt(b.remaining());
                }});

        // The index must be non-negative and less than the buffer's limit.
        tryCatch(b, IndexOutOfBoundsException.class, new Runnable() {
                public void run() {
                    b.get(b.limit());
                }});
        tryCatch(b, IndexOutOfBoundsException.class, new Runnable() {
                public void run() {
                    b.get(-1);
                }});

        // The start must be non-negative and no larger than remaining().
        tryCatch(b, IndexOutOfBoundsException.class, new Runnable() {
                public void run() {
                    b.subSequence(-1, b.remaining());
                }});
        tryCatch(b, IndexOutOfBoundsException.class, new Runnable() {
                public void run() {
                    b.subSequence(b.remaining() + 1, b.remaining());
                }});

        // The end must be no smaller than start and no larger than
        // remaining().
        tryCatch(b, IndexOutOfBoundsException.class, new Runnable() {
                public void run() {
                    b.subSequence(2, 1);
                }});
        tryCatch(b, IndexOutOfBoundsException.class, new Runnable() {
                public void run() {
                    b.subSequence(0, b.remaining() + 1);
                }});

        // The offset must be non-negative and no larger than <array.length>.
        tryCatch(b, IndexOutOfBoundsException.class, new Runnable() {
                public void run() {
                    CharBuffer.wrap(s, -1, s.length());
                }});
        tryCatch(b, IndexOutOfBoundsException.class, new Runnable() {
                public void run() {
                    CharBuffer.wrap(s, s.length() + 1, s.length());
                }});
        tryCatch(b, IndexOutOfBoundsException.class, new Runnable() {
                public void run() {
                    CharBuffer.wrap(s, 1, 0);
                }});
        tryCatch(b, IndexOutOfBoundsException.class, new Runnable() {
                public void run() {
                    CharBuffer.wrap(s, 0, s.length() + 1);
                }});
    }


    public static void test(final char [] ba) {
        int offset = 47;
        int length = 900;
        final CharBuffer b = CharBuffer.wrap(ba, offset, length);
        show(0, b);
        ck(b, b.capacity(), ba.length);
        ck(b, b.position(), offset);
        ck(b, b.limit(), offset + length);

        // The offset must be non-negative and no larger than <array.length>.
        tryCatch(ba, IndexOutOfBoundsException.class, new Runnable() {
                public void run() {
                    CharBuffer.wrap(ba, -1, ba.length);
                }});
        tryCatch(ba, IndexOutOfBoundsException.class, new Runnable() {
                public void run() {
                    CharBuffer.wrap(ba, ba.length + 1, ba.length);
                }});
        tryCatch(ba, IndexOutOfBoundsException.class, new Runnable() {
                public void run() {
                    CharBuffer.wrap(ba, 0, -1);
                }});
        tryCatch(ba, IndexOutOfBoundsException.class, new Runnable() {
                public void run() {
                    CharBuffer.wrap(ba, 0, ba.length + 1);
                }});

        // A NullPointerException will be thrown if the array is null.
        tryCatch(ba, NullPointerException.class, new Runnable() {
                public void run() {
                    CharBuffer.wrap((char []) null, 0, 5);
                }});
        tryCatch(ba, NullPointerException.class, new Runnable() {
                public void run() {
                    CharBuffer.wrap((char []) null);
                }});
    }

    private static void testAllocate() {
        // An IllegalArgumentException will be thrown for negative capacities.
        tryCatch((Buffer) null, IllegalArgumentException.class, new Runnable() {
                public void run() {
                    CharBuffer.allocate(-1);
                }});


    }

    public static void test() {
        testAllocate();
        test(0, CharBuffer.allocate(7 * 1024), false);
        test(0, CharBuffer.wrap(new char[7 * 1024], 0, 7 * 1024), false);
        test(new char[1024]);


        testStr();


        callReset(CharBuffer.allocate(10));


        putBuffer();

    }

}