/* ********************************************************************** * 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 #include #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 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 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