/********************************************************************
 * COPYRIGHT: 
 * Copyright (c) 2001, International Business Machines Corporation and
 * others. All Rights Reserved.
 ********************************************************************/
/*
* File stdnmtst.c
*
* Modification History:
*
*   Date          Name        Description
*   08/05/2000    Yves       Creation 
*******************************************************************************
*/

#include "unicode/ucnv.h"
#include "cstring.h"
#include "cintltst.h"

#define ARRAY_SIZE(array) (int32_t)(sizeof array  / sizeof array[0])

static void TestStandardName(void);
static void TestStandardNames(void);

void addStandardNamesTest(TestNode** root);


void
addStandardNamesTest(TestNode** root)
{
  addTest(root, &TestStandardName,  "stdnmtst/TestStandardName");
  addTest(root, &TestStandardNames, "stdnmtst/TestStandardNames");
}

static int dotestname(const char *name, const char *standard, const char *expected) {
    int res = 1;

    UErrorCode error;
    const char *tag;

    error = U_ZERO_ERROR;
    tag = ucnv_getStandardName(name, standard, &error);
    if (!tag) {
        log_err("FAIL: could not find %s standard name for %s\n", standard, name);
        res = 0;
    } else if (expected && uprv_stricmp(expected, tag)) {
        log_err("FAIL: expected %s for %s standard name for %s, got %s\n", expected, standard, name, tag);
        res = 0;
    }

    return res;
}

static void TestStandardName()
{
    int res = 1;

    uint16_t i, count;
    UErrorCode err;

    /* Iterate over all standards. */

    for (i = 0, count = ucnv_countStandards(); i < count; ++i) {
        const char *standard;

        err = U_ZERO_ERROR;
        standard = ucnv_getStandard(i, &err);
        if (U_FAILURE(err)) {
            log_err("FAIL: ucnv_getStandard(%d), error=%s\n", i, u_errorName(err));
            res = 0;
        } else if (!standard || !*standard) {
            log_err("FAIL: %s standard name at index %d\n", (standard ? "empty" :
                "null"), i);
            res = 0;
        }
    }
    err = U_ZERO_ERROR;
    if (ucnv_getStandard(i, &err)) {
        log_err("FAIL: ucnv_getStandard(%d) should return NULL\n", i);
        res = 0;
    }

    if (res) {
        log_verbose("PASS: iterating over standard names works\n");
    }

    /* Test for some expected results. */

    if (dotestname("ibm-1208", "MIME", "utf-8") &&
        /*dotestname("cp1252", "MIME", "windows-1252") &&*/
        dotestname("ascii", "MIME", "us-ascii") &&
        dotestname("ascii", "IANA", "ANSI_X3.4-1968") &&
        dotestname("cp850", "IANA", "IBM850"))
    {
        log_verbose("PASS: getting IANA and MIME stadard names works\n");
    }
}


static UBool doTestNames(const char *name, const char *standard, const char **expected, int32_t size) {
    UErrorCode err = U_ZERO_ERROR;
    UEnumeration *myEnum = ucnv_openStandardNames(name, standard, &err);
    int32_t enumCount = uenum_count(myEnum, &err);
    int32_t idx;
    if (size != enumCount) {
        log_err("FAIL: different size arrays. Got %d. Expected %d\n", enumCount, size);
        return 0;
    }
    if (size < 0 && myEnum) {
        log_err("FAIL: size < 0, but recieved an actual object\n");
        return 0;
    }
    log_verbose("\n%s %s\n", name, standard);
    for (idx = 0; idx < enumCount; idx++) {
        const char *enumName = uenum_next(myEnum, NULL, &err);
        const char *testName = expected[idx];
        if (uprv_strcmp(enumName, testName) != 0 || U_FAILURE(err)) {
            log_err("FAIL: uenum_next(%d) == \"%s\". expected \"%s\", error=%s\n",
                idx, enumName, testName, u_errorName(err));
        }
        log_verbose("%s\n", enumName);
        err = U_ZERO_ERROR;
    }
    uenum_close(myEnum);
    return 1;
}

static void TestStandardNames()
{
    UErrorCode err = U_ZERO_ERROR;
    static const char *asciiIANA[] = {
        "ANSI_X3.4-1968",
        "US-ASCII",
        "ASCII",
        "ANSI_X3.4-1986",
        "ISO_646.irv:1991",
        "ISO646-US",
        "us",
        "csASCII",
        "iso-ir-6",
        "cp367",
    };
    static const char *asciiMIME[] = {
        "US-ASCII"
    };
    doTestNames("ASCII", "IANA", asciiIANA, ARRAY_SIZE(asciiIANA));
    doTestNames("US-ASCII", "IANA", asciiIANA, ARRAY_SIZE(asciiIANA));
    doTestNames("ASCII", "MIME", asciiMIME, ARRAY_SIZE(asciiMIME));
    doTestNames("ascii", "mime", asciiMIME, ARRAY_SIZE(asciiMIME));

    doTestNames("ASCII", "crazy", asciiMIME, -1);
    doTestNames("crazy", "MIME", asciiMIME, -1);
}