xnu-792.12.6.tar.gz

[apple/xnu.git] / iokit / Tests / TestContainers.cpp

/*
 * Copyright (c) 1998-2000 Apple Computer, Inc. All rights reserved.
 *
 * @APPLE_LICENSE_OSREFERENCE_HEADER_START@
 * 
 * This file contains Original Code and/or Modifications of Original Code 
 * as defined in and that are subject to the Apple Public Source License 
 * Version 2.0 (the 'License'). You may not use this file except in 
 * compliance with the License.  The rights granted to you under the 
 * License may not be used to create, or enable the creation or 
 * redistribution of, unlawful or unlicensed copies of an Apple operating 
 * system, or to circumvent, violate, or enable the circumvention or 
 * violation of, any terms of an Apple operating system software license 
 * agreement.
 *
 * Please obtain a copy of the License at 
 * http://www.opensource.apple.com/apsl/ and read it before using this 
 * file.
 *
 * The Original Code and all software distributed under the License are 
 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER 
 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, 
 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, 
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 */
#if DEBUG
#include "Tests.h"

#include <libkern/c++/OSData.h>
#include <libkern/c++/OSString.h>
#include <libkern/c++/OSSymbol.h>

static const char testC00[] = "The quick brown fox jumps over the lazy dog.  ";
static const char testC01[] = "The quick brown fox ";
static const char testC02[] = "jumps over the ";
static const char testC03[] = "lazy dog.  \n";
static const char testC04[] = "The ";
static const char testC05[] = "quick ";
static const char testC06[] = "brown ";
static const char testC07[] = "fox ";
static const char testC08[] = "jumps ";
static const char testC09[] = "over ";
static const char testC10[] = "the ";
static const char testC11[] = "lazy ";
static const char testC12[] = "dog.  \n";
static const char testC13[] = "Now is the time for all good "
                               "men to come to the aid of the party  \n";
static const char testC14[] = "Now is the time for ";
static const char testC15[] = "all good men to come ";
static const char testC16[] = "to the aid of the party  \n";
static const char testC17[] = "Now ";
static const char testC18[] = "is ";
static const char testC19[] = "the ";
static const char testC20[] = "time ";
static const char testC21[] = "for ";
static const char testC22[] = "all ";
static const char testC23[] = "good ";
static const char testC24[] = "men ";
static const char testC25[] = "to ";
static const char testC26[] = "come ";
static const char testC27[] = "to ";
static const char testC28[] = "the ";
static const char testC29[] = "aid ";
static const char testC30[] = "of ";
static const char testC31[] = "the ";
static const char testC32[] = "party.  \n";
static const char testC33[] = "Frank Burns eats worms.  \n";
static const char testC34[] = "Frank Burns ";
static const char testC35[] = "eats worms.  \n";
static const char testC36[] = "Frank ";
static const char testC37[] = "Burns ";
static const char testC38[] = "eats ";
static const char testC39[] = "worms.  \n";
static const char testC40[] = "Tired eyes?  Stiff neck?  Tight shoulders?  "
                              "Aching back?  The right moves can help "
                              "prevent these kinds of problem.  ";
static const char testC41[] = "Tired eyes?  Stiff neck?  ";
static const char testC42[] = "Tight shoulders?  Aching back?  ";
static const char testC43[] = "The right moves can help prevent ";
static const char testC44[] = "these kinds of problem.  ";
static const char testC45[] = "Tired ";
static const char testC46[] = "eyes?  ";
static const char testC47[] = "Stiff ";
static const char testC48[] = "neck?  ";
static const char testC49[] = "Tight ";
static const char testC50[] = "shoulders?  ";
static const char testC51[] = "Aching ";
static const char testC52[] = "back?  ";
static const char testC53[] = "The ";
static const char testC54[] = "right ";
static const char testC55[] = "moves ";
static const char testC56[] = "can ";
static const char testC57[] = "help ";
static const char testC58[] = "prevent ";
static const char testC59[] = "these ";
static const char testC60[] = "kinds ";
static const char testC61[] = "of ";
static const char testC62[] = "problem.  ";

const char *strCache[] = {
    testC00, testC01, testC02, testC03, testC04, testC05, testC06, testC07,
    testC08, testC09, testC10, testC11, testC12, testC13, testC14, testC15,
    testC16, testC17, testC18, testC19, testC20, testC21, testC22, testC23,
    testC24, testC25, testC26, testC27, testC28, testC29, testC30, testC31,
    testC32, testC33, testC34, testC35, testC36, testC37, testC38, testC39, 
    testC40, testC41, testC42, testC43, testC44, testC45, testC46, testC47, 
    testC48, testC49, testC50, testC51, testC52, testC53, testC54, testC55, 
    testC56, testC57, testC58, testC59, testC60, testC61, testC62, 
};
const int numStrCache = ((int) (sizeof(strCache)/sizeof(strCache[0])));

void testData()
{
#define DATA_SIZE_1	 256
#define DATA_SIZE_2	 512
#define DATA_SIZE_3	1024
#define DATA_SIZE_4	8192
    
    OSData *test1, *test2, *test3;
    void *spaceCheck;
    unsigned int len;
    unsigned int i;
    bool res = true;
    unsigned short testData[DATA_SIZE_4/sizeof(short)], *cp;

    // very first test initialises the OSMetaClass cache.
    test1 = OSData::withCapacity(DATA_SIZE_1);
    TEST_ASSERT('d', "0a", test1);
    if (test1)
        test1->release();

    for (i = 0; i < sizeof(testData)/sizeof(short); i++)
        testData[i] = (unsigned short) i;

    // Check empty data allocation
    spaceCheck = checkPointSpace();
    test1 = OSData::withCapacity(DATA_SIZE_1);
    TEST_ASSERT('d', "1a", test1);
    if (test1) {
        TEST_ASSERT('d', "1b", !test1->getLength());
        TEST_ASSERT('d', "1c", test1->getCapacity() == DATA_SIZE_1);
        TEST_ASSERT('d', "1d", !test1->getBytesNoCopy());
        TEST_ASSERT('d', "1e", !test1->getBytesNoCopy(10, DATA_SIZE_1 - 10));
        TEST_ASSERT('d', "1f", test1->appendBytes(spaceCheck, 0));
        TEST_ASSERT('d', "1g", !test1->getLength());
        TEST_ASSERT('d', "1h", test1->getCapacity() == DATA_SIZE_1);
        TEST_ASSERT('d', "1i", !test1->getBytesNoCopy());
        test1->release();
    }
    res = res && checkSpace("(d)1", spaceCheck, 0);

    // Check appending to empty data allocation 
    spaceCheck = checkPointSpace();
    test1 = OSData::withCapacity(DATA_SIZE_1);
    TEST_ASSERT('d', "2a", test1);
    if (test1) {
        TEST_ASSERT('d', "2b", !test1->getLength());
        TEST_ASSERT('d', "2c", !test1->getBytesNoCopy());
        TEST_ASSERT('d', "2d", test1->appendBytes(testData, DATA_SIZE_1));
        TEST_ASSERT('d', "2e", test1->getLength() == DATA_SIZE_1);
        TEST_ASSERT('d', "2f", test1->getBytesNoCopy());
        cp = (unsigned short *) test1->getBytesNoCopy();
        for (i = 0; cp && i < (DATA_SIZE_1/sizeof(short)); i++) {
            TEST_ASSERT('d', "2g", *cp++ == testData[i]);
            if (*cp != testData[i])
                break;
        }
        TEST_ASSERT('d', "2h", test1->getBytesNoCopy(10, DATA_SIZE_1-10));
        cp = (unsigned short *) test1->getBytesNoCopy(10, DATA_SIZE_1 - 10);
        for (i = 5; cp && i < (DATA_SIZE_1/sizeof(short)) - 5; i++) {
            TEST_ASSERT('d', "2i", *cp++ == testData[i]);
            if (*cp != testData[i])
                break;
        }
        TEST_ASSERT('d', "2j", test1->isEqualTo(testData, DATA_SIZE_1));
        test1->release();
    }
    res = res && checkSpace("(d)2", spaceCheck, 0);

    // Check data allocation from some constant data
    spaceCheck = checkPointSpace();
    test1 = OSData::withBytes(testData, sizeof(testData));
    TEST_ASSERT('d', "3a", test1);
    if (test1) {
        TEST_ASSERT('d', "3b", test1->getLength() == sizeof(testData));
        TEST_ASSERT('d', "3c", test1->getCapacity() == sizeof(testData));
        TEST_ASSERT('d', "3d", test1->getBytesNoCopy());
        TEST_ASSERT('d', "3e", test1->getBytesNoCopy(10, sizeof(testData)-10));
        TEST_ASSERT('d', "3f", test1->appendBytes(spaceCheck, 0));
        TEST_ASSERT('d', "3g", test1->getLength() == sizeof(testData));
        TEST_ASSERT('d', "3h", test1->getCapacity() == sizeof(testData));
        TEST_ASSERT('d', "3i", test1->getBytesNoCopy());
        TEST_ASSERT('d', "3j", test1->getBytesNoCopy(10, sizeof(testData)-10));
        TEST_ASSERT('d', "3k", !test1->appendBytes(testData, 10));
        test1->release();
    }
    res = res && checkSpace("(d)3", spaceCheck, 0);

    // Check and continious addition of more data
    spaceCheck = checkPointSpace();
    test1 = OSData::withCapacity(DATA_SIZE_4);
    test2 = OSData::withBytesNoCopy(testData, DATA_SIZE_3);
    len = DATA_SIZE_3;
    TEST_ASSERT('d', "4a", (test1 && test2));
    if (test1 && test2) {
        TEST_ASSERT('d', "4b", !test1->getLength());
        for (i = 0; i < DATA_SIZE_4; i += DATA_SIZE_3)
            TEST_ASSERT('d', "4c", test1->appendBytes(test2));
        TEST_ASSERT('d', "4d", !test1->appendBytes(test2));
        for (i = 0; i < DATA_SIZE_4; i += DATA_SIZE_3) {

            TEST_ASSERT('d', "4e", test2->isEqualTo(
                                        test1->getBytesNoCopy(i, DATA_SIZE_3),
                                        DATA_SIZE_3));

            test3 = OSData::withData(test1, i, DATA_SIZE_3);
            TEST_ASSERT('d', "4f", test3);
            if (test3) {
                TEST_ASSERT('d', "4g", test2->isEqualTo(test3));
                test3->release();
            }

            test3 = OSData::withData(test1, i, len);
            TEST_ASSERT('d', "4i", test3);
            if (test3) {
                TEST_ASSERT('d', "4j", test2->isEqualTo(test3));
                test3->release();
            }
        }
        test1->release();
        test2->release();
    }
    res = res && checkSpace("(d)3", spaceCheck, 0);

    if (res)
        verPrintf(("testData: All OSData Tests passed\n"));
    else
        logPrintf(("testData: Some OSData Tests failed\n"));
#undef DATA_SIZE_4
#undef DATA_SIZE_3
#undef DATA_SIZE_2
#undef DATA_SIZE_1
}

void testString()
{
    OSString *test1, *test2;
    void *spaceCheck;
    int i;
    char c;
    bool res = true;

    // very first test initialises the OSMetaClass cache.
    test1 = OSString::withCStringNoCopy(testC00);
    TEST_ASSERT('s', "0a", test1);
    if (test1)
        test1->release();

    // Check c string allocation
    spaceCheck = checkPointSpace();
    test1 = OSString::withCString(testC00);
    TEST_ASSERT('s', "1a", test1);
    TEST_ASSERT('s', "1b", testC00 != test1->getCStringNoCopy());
    TEST_ASSERT('s', "1c", strcmp(testC00, test1->getCStringNoCopy()) == 0);
    TEST_ASSERT('s', "1d", strlen(testC00) == test1->getLength());
    TEST_ASSERT('s', "1e", test1->isEqualTo(testC00));
    TEST_ASSERT('s', "1f", !test1->isEqualTo(testC01));
    if (test1) test1->release();
    res = res && checkSpace("(s)1", spaceCheck, 0);

    // Check c string no allocation
    spaceCheck = checkPointSpace();
    test1 = OSString::withCStringNoCopy(testC00);
    TEST_ASSERT('s', "2a", test1);
    TEST_ASSERT('s', "2b", testC00 == test1->getCStringNoCopy());
    if (test1) test1->release();
    res = res && checkSpace("(s)2", spaceCheck, 0);

    // Check string from other string generation
    spaceCheck = checkPointSpace();
    test1 = OSString::withCStringNoCopy(testC00);
    TEST_ASSERT('s', "3a", test1);
    test2 = OSString::withString(test1);
    TEST_ASSERT('s', "3b", test2);
    TEST_ASSERT('s', "3c", test1 != test2);
    TEST_ASSERT('s', "3d", test1->isEqualTo(test2));
    if (test1) test1->release();
    if (test2) test2->release();
    res = res && checkSpace("(s)3", spaceCheck, 0);

    // Check string comparison functionality no copy
    spaceCheck = checkPointSpace();
    test1 = OSString::withCStringNoCopy(testC00);
    test2 = OSString::withCStringNoCopy(testC01);
    TEST_ASSERT('s', "4a", test1 && test2);
    TEST_ASSERT('s', "4b", !test1->isEqualTo(test2));
    TEST_ASSERT('s', "4c", !test1->isEqualTo(testC01));
    TEST_ASSERT('s', "4d", test1->isEqualTo(testC00));
    if (test1) test1->release();
    if (test2) test2->release();
    res = res && checkSpace("(s)4", spaceCheck, 0);

    // Check string comparison functionality with copy
    spaceCheck = checkPointSpace();
    test1 = OSString::withCString(testC00);
    test2 = OSString::withCString(testC01);
    TEST_ASSERT('s', "5a", test1 && test2);
    TEST_ASSERT('s', "5b", !test1->isEqualTo(test2));
    TEST_ASSERT('s', "5c", !test1->isEqualTo(testC01));
    TEST_ASSERT('s', "5d", test1->isEqualTo(testC00));
    if (test1) test1->release();
    if (test2) test2->release();
    res = res && checkSpace("(s)5", spaceCheck, 0);

    // Check string inplace modifications
    spaceCheck = checkPointSpace();
    test1 = OSString::withCString(testC00);
    TEST_ASSERT('s', "6a", test1);
    for (i = 0; (c = test1->getChar(i)); i++)
        if (c != testC00[i]) {
            verPrintf(("testString(s) test 6b failed\n")); res = false;
            break;
        }
    TEST_ASSERT('s', "6c", !c);
    TEST_ASSERT('s', "6d", test1->setChar(' ', 0));
    TEST_ASSERT('s', "6e", !test1->isEqualTo(testC00));
    TEST_ASSERT('s', "6f", test1->setChar('T', 0));
    TEST_ASSERT('s', "6g", !test1->setChar(' ', sizeof(testC00)));
    TEST_ASSERT('s', "6h", test1->isEqualTo(testC00));
    if (test1) test1->release();
    res = res && checkSpace("(s)6", spaceCheck, 0);

    // Check const string fail inplace modifications
    spaceCheck = checkPointSpace();
    test1 = OSString::withCStringNoCopy(testC00);
    TEST_ASSERT('s', "7a", test1);
    for (i = 0; (c = test1->getChar(i)); i++)
        if (c != testC00[i]) {
            verPrintf(("testString(s) test 7b failed\n")); res = false;
            break;
        }
    TEST_ASSERT('s', "7c", !c);
    TEST_ASSERT('s', "7d", !test1->setChar(' ', 0));
    TEST_ASSERT('s', "7e", test1->isEqualTo(testC00));
    TEST_ASSERT('s', "7f", !test1->setChar(' ', sizeof(testC00)));
    TEST_ASSERT('s', "7g", test1->isEqualTo(testC00));
    if (test1) test1->release();
    res = res && checkSpace("(s)7", spaceCheck, 0);

    if (res)
        verPrintf(("testString: All OSString Tests passed\n"));
    else
        logPrintf(("testString: Some OSString Tests failed\n"));
}

void testSymbol()
{
    bool res = true;
    int i, j;
    int countDups;
    const OSSymbol *cache[numStrCache];
    void *spaceCheck;

    // very first test initialises the OSMetaClass cache.
    cache[0] = IOSymbol::withCStringNoCopy(testC00);
    TEST_ASSERT('u', "0a", cache[0]);
    if (cache[0])
        cache[0]->release();

    spaceCheck = checkPointSpace();

    // Setup the symbol cache, make sure it grows the symbol unique'ing
    // hash table.  Also determine that the symbol is created ok and that
    // it is indeed equal to the creating cString by strcmp.
    for (i = 0; i < numStrCache; i++) {
        cache[i] = OSSymbol::withCStringNoCopy(strCache[i]);
        if (!cache[i]) {
            verPrintf(("testSymbol(u) test 1a%d failed\n", i)); res = false;
        }
        else if (!cache[i]->isEqualTo(strCache[i])) {
            verPrintf(("testSymbol(u) test 1b%d failed\n", i)); res = false;
        }
    }

    // The strCache does have some duplicates in it, mostly 'the'.  Make
    // sure that we wind them and that different cache entries really are
    // different by strcmp.  Fundamental to OSSymbol semantics.
    countDups = 0;
    for (i = 0; i < numStrCache; i++)
        for (j = i+1; j < numStrCache; j++) {
            if (cache[i] != cache[j] && cache[i]->isEqualTo(cache[j])) {
                verPrintf(("testSymbol(u) test 2a%d,%d failed\n", i, j));
                res = false;
            }
            else if (cache[i] == cache[j]) {
                if (cache[i]->getRetainCount() == 1) {
                    verPrintf(("testSymbol(u) test 2b%d,%d failed\n", i, j));
                    res = false;
                }
                countDups++;
            }
        }
    TEST_ASSERT('u', "2c", countDups);

    // Clear out the cache and check that the unique'ing hashtable has grown
    for (i = 0; i < numStrCache; i++) {
        if (cache[i]) {
            cache[i]->release();
            cache[i] = 0;
        }
    }
    // As of 1998-11-17 the hash growth is 364.
    res = res && checkSpace("(u)3", spaceCheck, 972);
    logSpace();

    // Check for leaks by repeating the cacheing and freeing
    spaceCheck = checkPointSpace();
    for (i = 0; i < numStrCache; i++)
        cache[i] = OSSymbol::withCString(strCache[i]);
    for (i = 0; i < numStrCache; i++) {
        if (cache[i]) {
            cache[i]->release();
            cache[i] = 0;
        }
    }
    res = res && checkSpace("(u)4", spaceCheck, 0);

    // Check that the OSString based symbol constructors work
    // and that they don't leak, and finally double check that while
    // the cache is active the symbol semantics still work.
    spaceCheck = checkPointSpace();
    for (i = 0; i < numStrCache; i++) {
        OSString *tmpStr;

        tmpStr = (i&1)
               ? OSString::withCString(strCache[i])
               : OSString::withCStringNoCopy(strCache[i]);
        if (tmpStr) {
            cache[i] = OSSymbol::withString(tmpStr);
            if (!cache[i]) {
                verPrintf(("testSymbol(u) test 5a%d failed\n", i));
                res = false;
            }
            tmpStr->release();
        }
    }

    for (i = 0; i < numStrCache; i++) {
        if (cache[i]) {
            const OSSymbol *tmpSymb;

            tmpSymb = OSSymbol::withCStringNoCopy(strCache[i]);
            if (cache[i] != tmpSymb) {
                verPrintf(("testSymbol(u) test 5b%d failed\n", i));
                res = false;
            }
            tmpSymb->release();
            cache[i]->release();
            cache[i] = 0;
        }
        else {
            verPrintf(("testSymbol(u) test 5c%d failed\n", i));
            res = false;
        }
    }
    res = res && checkSpace("(u)5", spaceCheck, 0);

    if (res)
        verPrintf(("testSymbol: All OSSymbol Tests passed\n"));
    else
        logPrintf(("testSymbol: Some OSSymbol Tests failed\n"));
}

#endif /* DEBUG */