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scuffed-code/icu4c/source/test/intltest/itspoof.cpp
Andy Heninger 497e88ec1f ICU-8341 spoof skeleton computed using NFD, not NFKD 
X-SVN-Rev: 29475
2011-02-24 22:55:07 +00:00

402 lines
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/*
**********************************************************************
* Copyright (C) 2011, International Business Machines Corporation
* and others. All Rights Reserved.
**********************************************************************
*/
/**
* IntlTestSpoof tests for USpoofDetector
*/
#include "unicode/utypes.h"
#if !UCONFIG_NO_REGULAR_EXPRESSIONS && !UCONFIG_NO_NORMALIZATION && !UCONFIG_NO_FILE_IO
#include "itspoof.h"
#include "unicode/uspoof.h"
#include "unicode/unistr.h"
#include "unicode/regex.h"
#include "unicode/normlzr.h"
#include "cstring.h"
#include <stdlib.h>
#include <stdio.h>
#define TEST_ASSERT_SUCCESS(status) {if (U_FAILURE(status)) { \
errcheckln(status, "Failure at file %s, line %d, error = %s", __FILE__, __LINE__, u_errorName(status));}}
#define TEST_ASSERT(expr) {if ((expr)==FALSE) { \
errln("Test Failure at file %s, line %d: \"%s\" is false.\n", __FILE__, __LINE__, #expr);};}
#define TEST_ASSERT_EQ(a, b) { if ((a) != (b)) { \
errln("Test Failure at file %s, line %d: \"%s\" (%d) != \"%s\" (%d) \n", \
__FILE__, __LINE__, #a, (a), #b, (b)); }}
#define TEST_ASSERT_NE(a, b) { if ((a) == (b)) { \
errln("Test Failure at file %s, line %d: \"%s\" (%d) == \"%s\" (%d) \n", \
__FILE__, __LINE__, #a, (a), #b, (b)); }}
/*
* TEST_SETUP and TEST_TEARDOWN
* macros to handle the boilerplate around setting up test case.
* Put arbitrary test code between SETUP and TEARDOWN.
* "sc" is the ready-to-go SpoofChecker for use in the tests.
*/
#define TEST_SETUP { \
UErrorCode status = U_ZERO_ERROR; \
USpoofChecker *sc; \
sc = uspoof_open(&status); \
TEST_ASSERT_SUCCESS(status); \
if (U_SUCCESS(status)){
#define TEST_TEARDOWN \
} \
TEST_ASSERT_SUCCESS(status); \
uspoof_close(sc); \
}
void IntlTestSpoof::runIndexedTest( int32_t index, UBool exec, const char* &name, char* /*par*/ )
{
if (exec) logln("TestSuite spoof: ");
switch (index) {
case 0:
name = "TestSpoofAPI";
if (exec) {
testSpoofAPI();
}
break;
case 1:
name = "TestSkeleton";
if (exec) {
testSkeleton();
}
break;
case 2:
name = "TestAreConfusable";
if (exec) {
testAreConfusable();
}
break;
case 3:
name = "TestInvisible";
if (exec) {
testInvisible();
}
break;
case 4:
name = "testConfData";
if (exec) {
testConfData();
}
break;
default: name=""; break;
}
}
void IntlTestSpoof::testSpoofAPI() {
TEST_SETUP
UnicodeString s("xyz"); // Many latin ranges are whole-script confusable with other scripts.
// If this test starts failing, consult confusablesWholeScript.txt
int32_t position = 666;
int32_t checkResults = uspoof_checkUnicodeString(sc, s, &position, &status);
TEST_ASSERT_SUCCESS(status);
TEST_ASSERT_EQ(0, checkResults);
TEST_ASSERT_EQ(666, position);
TEST_TEARDOWN;
TEST_SETUP
UnicodeString s1("cxs");
UnicodeString s2 = UnicodeString("\\u0441\\u0445\\u0455").unescape(); // Cyrillic "cxs"
int32_t checkResults = uspoof_areConfusableUnicodeString(sc, s1, s2, &status);
TEST_ASSERT_EQ(USPOOF_MIXED_SCRIPT_CONFUSABLE | USPOOF_WHOLE_SCRIPT_CONFUSABLE, checkResults);
TEST_TEARDOWN;
TEST_SETUP
UnicodeString s("I1l0O");
UnicodeString dest;
UnicodeString &retStr = uspoof_getSkeletonUnicodeString(sc, USPOOF_ANY_CASE, s, dest, &status);
TEST_ASSERT_SUCCESS(status);
TEST_ASSERT(UnicodeString("lllOO") == dest);
TEST_ASSERT(&dest == &retStr);
TEST_TEARDOWN;
}
#define CHECK_SKELETON(type, input, expected) { \
checkSkeleton(sc, type, input, expected, __LINE__); \
}
// testSkeleton. Spot check a number of confusable skeleton substitutions from the
// Unicode data file confusables.txt
// Test cases chosen for substitutions of various lengths, and
// membership in different mapping tables.
void IntlTestSpoof::testSkeleton() {
const uint32_t ML = 0;
const uint32_t SL = USPOOF_SINGLE_SCRIPT_CONFUSABLE;
const uint32_t MA = USPOOF_ANY_CASE;
const uint32_t SA = USPOOF_SINGLE_SCRIPT_CONFUSABLE | USPOOF_ANY_CASE;
TEST_SETUP
// A long "identifier" that will overflow implementation stack buffers, forcing heap allocations.
CHECK_SKELETON(SL, " A 1ong \\u02b9identifier' that will overflow implementation stack buffers, forcing heap allocations."
" A 1ong 'identifier' that will overflow implementation stack buffers, forcing heap allocations."
" A 1ong 'identifier' that will overflow implementation stack buffers, forcing heap allocations."
" A 1ong 'identifier' that will overflow implementation stack buffers, forcing heap allocations.",
" A long 'identifier' that vvill overflovv irnplernentation stack buffers, forcing heap allocations."
" A long 'identifier' that vvill overflovv irnplernentation stack buffers, forcing heap allocations."
" A long 'identifier' that vvill overflovv irnplernentation stack buffers, forcing heap allocations."
" A long 'identifier' that vvill overflovv irnplernentation stack buffers, forcing heap allocations.")
CHECK_SKELETON(SL, "nochange", "nochange");
CHECK_SKELETON(MA, "love", "love");
CHECK_SKELETON(MA, "1ove", "love"); // Digit 1 to letter l
CHECK_SKELETON(ML, "OOPS", "OOPS");
CHECK_SKELETON(ML, "00PS", "00PS"); // Digit 0 unchanged in lower case mode.
CHECK_SKELETON(MA, "OOPS", "OOPS");
CHECK_SKELETON(MA, "00PS", "OOPS"); // Digit 0 to letter O in any case mode only
CHECK_SKELETON(SL, "\\u059c", "\\u0301");
CHECK_SKELETON(SL, "\\u2A74", "\\u003A\\u003A\\u003D");
CHECK_SKELETON(SL, "\\u247E", "\\u0028\\u006C\\u006C\\u0029"); // "(ll)"
CHECK_SKELETON(SL, "\\uFDFB", "\\u062C\\u0644\\u0020\\u062C\\u0644\\u0627\\u0644\\u0647");
// This mapping exists in the ML and MA tables, does not exist in SL, SA
//0C83 ; 0C03 ;
CHECK_SKELETON(SL, "\\u0C83", "\\u0C83");
CHECK_SKELETON(SA, "\\u0C83", "\\u0C83");
CHECK_SKELETON(ML, "\\u0C83", "\\u0983");
CHECK_SKELETON(MA, "\\u0C83", "\\u0983");
// 0391 ; 0041 ;
// This mapping exists only in the MA table.
CHECK_SKELETON(MA, "\\u0391", "A");
CHECK_SKELETON(SA, "\\u0391", "\\u0391");
CHECK_SKELETON(ML, "\\u0391", "\\u0391");
CHECK_SKELETON(SL, "\\u0391", "\\u0391");
// 13CF ; 0062 ;
// This mapping exists in the ML and MA tables
CHECK_SKELETON(ML, "\\u13CF", "b");
CHECK_SKELETON(MA, "\\u13CF", "b");
CHECK_SKELETON(SL, "\\u13CF", "\\u13CF");
CHECK_SKELETON(SA, "\\u13CF", "\\u13CF");
// 0022 ; 0027 0027 ;
// all tables.
CHECK_SKELETON(SL, "\\u0022", "\\u0027\\u0027");
CHECK_SKELETON(SA, "\\u0022", "\\u0027\\u0027");
CHECK_SKELETON(ML, "\\u0022", "\\u0027\\u0027");
CHECK_SKELETON(MA, "\\u0022", "\\u0027\\u0027");
// 017F ; 0066 ;
// This mapping exists in the SA and MA tables
CHECK_SKELETON(MA, "\\u017F", "f");
CHECK_SKELETON(SA, "\\u017F", "f");
TEST_TEARDOWN;
}
//
// Run a single confusable skeleton transformation test case.
//
void IntlTestSpoof::checkSkeleton(const USpoofChecker *sc, uint32_t type,
const char *input, const char *expected, int32_t lineNum) {
UnicodeString uInput = UnicodeString(input).unescape();
UnicodeString uExpected = UnicodeString(expected).unescape();
UErrorCode status = U_ZERO_ERROR;
UnicodeString actual;
uspoof_getSkeletonUnicodeString(sc, type, uInput, actual, &status);
if (U_FAILURE(status)) {
errln("File %s, Line %d, Test case from line %d, status is %s", __FILE__, __LINE__, lineNum,
u_errorName(status));
return;
}
if (uExpected != actual) {
errln("File %s, Line %d, Test case from line %d, Actual and Expected skeletons differ.",
__FILE__, __LINE__, lineNum);
errln(UnicodeString(" Actual Skeleton: \"") + actual + UnicodeString("\"\n") +
UnicodeString(" Expected Skeleton: \"") + uExpected + UnicodeString("\""));
}
}
void IntlTestSpoof::testAreConfusable() {
TEST_SETUP
UnicodeString s1("A long string that will overflow stack buffers. A long string that will overflow stack buffers. "
"A long string that will overflow stack buffers. A long string that will overflow stack buffers. ");
UnicodeString s2("A long string that wi11 overflow stack buffers. A long string that will overflow stack buffers. "
"A long string that wi11 overflow stack buffers. A long string that will overflow stack buffers. ");
TEST_ASSERT_EQ(USPOOF_SINGLE_SCRIPT_CONFUSABLE, uspoof_areConfusableUnicodeString(sc, s1, s2, &status));
TEST_ASSERT_SUCCESS(status);
TEST_TEARDOWN;
}
void IntlTestSpoof::testInvisible() {
TEST_SETUP
UnicodeString s = UnicodeString("abcd\\u0301ef").unescape();
int32_t position = -42;
TEST_ASSERT_EQ(0, uspoof_checkUnicodeString(sc, s, &position, &status));
TEST_ASSERT_SUCCESS(status);
TEST_ASSERT(position == -42);
UnicodeString s2 = UnicodeString("abcd\\u0301\\u0302\\u0301ef").unescape();
TEST_ASSERT_EQ(USPOOF_INVISIBLE, uspoof_checkUnicodeString(sc, s2, &position, &status));
TEST_ASSERT_SUCCESS(status);
TEST_ASSERT_EQ(7, position);
// Tow acute accents, one from the composed a with acute accent, \u00e1,
// and one separate.
position = -42;
UnicodeString s3 = UnicodeString("abcd\\u00e1\\u0301xyz").unescape();
TEST_ASSERT_EQ(USPOOF_INVISIBLE, uspoof_checkUnicodeString(sc, s3, &position, &status));
TEST_ASSERT_SUCCESS(status);
TEST_ASSERT_EQ(7, position);
TEST_TEARDOWN;
}
static UnicodeString parseHex(const UnicodeString &in) {
// Convert a series of hex numbers in a Unicode String to a string with the
// corresponding characters.
// The conversion is _really_ annoying. There must be some function to just do it.
UnicodeString result;
UChar32 cc = 0;
for (int32_t i=0; i<in.length(); i++) {
UChar c = in.charAt(i);
if (c == 0x20) { // Space
if (cc > 0) {
result.append(cc);
cc = 0;
}
} else if (c>=0x30 && c<=0x39) {
cc = (cc<<4) + (c - 0x30);
} else if ((c>=0x41 && c<=0x46) || (c>=0x61 && c<=0x66)) {
cc = (cc<<4) + (c & 0x0f)+9;
}
// else do something with bad input.
}
if (cc > 0) {
result.append(cc);
}
return result;
}
//
// Append the hex form of a UChar32 to a UnicodeString.
// Used in formatting error messages.
// Match the formatting of numbers in confusables.txt
// Minimum of 4 digits, no leading zeroes for positions 5 and up.
//
static void appendHexUChar(UnicodeString &dest, UChar32 c) {
UBool doZeroes = FALSE;
for (int bitNum=28; bitNum>=0; bitNum-=4) {
if (bitNum <= 12) {
doZeroes = TRUE;
}
int hexDigit = (c>>bitNum) & 0x0f;
if (hexDigit != 0 || doZeroes) {
doZeroes = TRUE;
dest.append((UChar)(hexDigit<=9? hexDigit + 0x30: hexDigit -10 + 0x41));
}
}
dest.append((UChar)0x20);
}
U_DEFINE_LOCAL_OPEN_POINTER(LocalStdioFilePointer, FILE, fclose);
// testConfData - Check each data item from the Unicode confusables.txt file,
// verify that it transforms correctly in a skeleton.
//
void IntlTestSpoof::testConfData() {
UErrorCode status = U_ZERO_ERROR;
const char *testDataDir = IntlTest::getSourceTestData(status);
TEST_ASSERT_SUCCESS(status);
char buffer[2000];
uprv_strcpy(buffer, testDataDir);
uprv_strcat(buffer, "confusables.txt");
LocalStdioFilePointer f(fopen(buffer, "rb"));
if (f.isNull()) {
errln("Skipping test spoof/testConfData. File confusables.txt not accessible.");
return;
}
fseek(f.getAlias(), 0, SEEK_END);
int32_t fileSize = ftell(f.getAlias());
LocalArray<char> fileBuf(new char[fileSize]);
fseek(f.getAlias(), 0, SEEK_SET);
int32_t amt_read = fread(fileBuf.getAlias(), 1, fileSize, f.getAlias());
TEST_ASSERT_EQ(amt_read, fileSize);
TEST_ASSERT(fileSize>0);
if (amt_read != fileSize || fileSize <=0) {
return;
}
UnicodeString confusablesTxt = UnicodeString::fromUTF8(StringPiece(fileBuf.getAlias(), fileSize));
LocalUSpoofCheckerPointer sc(uspoof_open(&status));
TEST_ASSERT_SUCCESS(status);
// Parse lines from the confusables.txt file. Example Line:
// FF44 ; 0064 ; SL # ( d -> d ) FULLWIDTH ....
// Three fields. The hex fields can contain more than one character,
// and each character may be more than 4 digits (for supplemntals)
// This regular expression matches lines and splits the fields into capture groups.
RegexMatcher parseLine("(?m)^([0-9A-F]{4}[^#;]*?);([^#;]*?);([^#]*)", confusablesTxt, 0, status);
TEST_ASSERT_SUCCESS(status);
while (parseLine.find()) {
UnicodeString from = parseHex(parseLine.group(1, status));
if (!Normalizer::isNormalized(from, UNORM_NFD, status)) {
// The source character was not NFD.
// Skip this case; the first step in obtaining a skeleton is to NFD the input,
// so the mapping in this line of confusables.txt will never be applied.
continue;
}
UnicodeString rawExpected = parseHex(parseLine.group(2, status));
UnicodeString expected;
Normalizer::decompose(rawExpected, FALSE /*NFD*/, 0, expected, status);
TEST_ASSERT_SUCCESS(status);
int32_t skeletonType = 0;
UnicodeString tableType = parseLine.group(3, status);
TEST_ASSERT_SUCCESS(status);
if (tableType.indexOf("SL") >= 0) {
skeletonType = USPOOF_SINGLE_SCRIPT_CONFUSABLE;
} else if (tableType.indexOf("SA") >= 0) {
skeletonType = USPOOF_SINGLE_SCRIPT_CONFUSABLE | USPOOF_ANY_CASE;
} else if (tableType.indexOf("ML") >= 0) {
skeletonType = 0;
} else if (tableType.indexOf("MA") >= 0) {
skeletonType = USPOOF_ANY_CASE;
}
UnicodeString actual;
uspoof_getSkeletonUnicodeString(sc.getAlias(), skeletonType, from, actual, &status);
TEST_ASSERT_SUCCESS(status);
TEST_ASSERT(actual == expected);
if (actual != expected) {
errln(parseLine.group(0, status));
UnicodeString line = "Actual: ";
int i = 0;
while (i < actual.length()) {
appendHexUChar(line, actual.char32At(i));
i = actual.moveIndex32(i, 1);
}
errln(line);
}
if (U_FAILURE(status)) {
break;
}
}
}
#endif // UCONFIG_NO_REGULAR_EXPRESSIONS
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