core/test/modules/ArrayStringTests.cpp

#include "../Tests.hpp"
#include "core/data/HashMap.hpp"
#include "core/utils/ArrayString.hpp"

template class Core::ArrayString<128, char>;
template class Core::ArrayString<128, char32_t>;

using String8 = Core::String8<128>;
using String32 = Core::String32<128>;

static String8 build(const char* cs) {
    String8 s;
    CORE_TEST_ERROR(s.append(cs));
    return s;
}

static void testEquality8() {
    String8 s = build("test");
    CORE_TEST_TRUE(s == "test");
    CORE_TEST_TRUE(s == build("test"));
    CORE_TEST_TRUE("test" == s);
    CORE_TEST_TRUE(build("test") == s);
    CORE_TEST_TRUE(s == s);
}

static void testUnicodeEquality8() {
    const char* cs = "\u0040\u0400\u8000\U00100000";
    String8 s = build(cs);
    CORE_TEST_TRUE(s == cs);
    CORE_TEST_TRUE(s == build(cs));
    CORE_TEST_TRUE(cs == s);
    CORE_TEST_TRUE(build(cs) == s);
    CORE_TEST_TRUE(s == s);
}

static void testInequality8() {
    String8 s = build("test");
    CORE_TEST_FALSE(s != "test");
    CORE_TEST_FALSE(s != build("test"));
    CORE_TEST_FALSE("test" != s);
    CORE_TEST_FALSE(build("test") != s);
    CORE_TEST_FALSE(s != s);
}

static void testStringAppend8() {
    String8 s = build("test");
    CORE_TEST_ERROR(s.append("22"));
    CORE_TEST_ERROR(s.append("333"));
    CORE_TEST_ERROR(s.append("4444"));
    CORE_TEST_EQUAL(build("test223334444"), s);
}

static void testStringAppendOverflow8() {
    Core::ArrayString<6, char> s;
    CORE_TEST_ERROR(s.append("te"));
    CORE_TEST_EQUAL(Core::Error::CAPACITY_REACHED, s.append("23334444"));
    CORE_TEST_TRUE(build("te23334444") != s);
}

static void testCharacters8() {
    String8 s = build("test");
    CORE_TEST_EQUAL('t', s[0]);
    CORE_TEST_EQUAL('e', s[1]);
    CORE_TEST_EQUAL('s', s[2]);
    CORE_TEST_EQUAL('t', s[3]);
}

static void testLength8() {
    String8 s = build("test");
    CORE_TEST_EQUAL(4, s.getLength());
    CORE_TEST_ERROR(s.append("aaa"));
    CORE_TEST_EQUAL(7, s.getLength());
}

static void testChar8() {
    String8 s = build("test");
    for(char i = 'a'; i < 'd'; i++) {
        CORE_TEST_ERROR(s.append(i));
    }
    CORE_TEST_EQUAL(build("testabc"), s);
}

static void testSignedChar8() {
    String8 s = build("test");
    for(signed char i = 'b'; i < 'e'; i++) {
        CORE_TEST_ERROR(s.append(i));
    }
    CORE_TEST_EQUAL(build("testbcd"), s);
}

static void testUnsignedChar8() {
    String8 s = build("test");
    for(unsigned char i = 'c'; i < 'f'; i++) {
        CORE_TEST_ERROR(s.append(i));
    }
    CORE_TEST_EQUAL(build("testcde"), s);
}

static void testSignedShort8() {
    String8 s = build("test");
    for(signed short i = 100; i < 103; i++) {
        CORE_TEST_ERROR(s.append(i));
    }
    CORE_TEST_EQUAL(build("test100101102"), s);
}

static void testUnsignedShort8() {
    String8 s = build("test");
    for(unsigned short i = 101; i < 104; i++) {
        CORE_TEST_ERROR(s.append(i));
    }
    CORE_TEST_EQUAL(build("test101102103"), s);
}

static void testSignedInt8() {
    String8 s = build("test");
    for(signed int i = 102; i < 105; i++) {
        CORE_TEST_ERROR(s.append(i));
    }
    CORE_TEST_EQUAL(build("test102103104"), s);
}

static void testUnsignedInt8() {
    String8 s = build("test");
    for(unsigned int i = 103; i < 106; i++) {
        CORE_TEST_ERROR(s.append(i));
    }
    CORE_TEST_EQUAL(build("test103104105"), s);
}

static void testSignedLong8() {
    String8 s = build("test");
    for(signed long i = 104; i < 107; i++) {
        CORE_TEST_ERROR(s.append(i));
    }
    CORE_TEST_EQUAL(build("test104105106"), s);
}

static void testUnsignedLong8() {
    String8 s = build("test");
    for(unsigned long i = 105; i < 108; i++) {
        CORE_TEST_ERROR(s.append(i));
    }
    CORE_TEST_EQUAL(build("test105106107"), s);
}

static void testSignedLongLong8() {
    String8 s = build("test");
    for(signed long long i = 106; i < 109; i++) {
        CORE_TEST_ERROR(s.append(i));
    }
    CORE_TEST_EQUAL(build("test106107108"), s);
}

static void testUnsignedLongLong8() {
    String8 s = build("test");
    for(unsigned long long i = 107; i < 110; i++) {
        CORE_TEST_ERROR(s.append(i));
    }
    CORE_TEST_EQUAL(build("test107108109"), s);
}

static void testFloat8() {
    String8 s = build("test");
    for(float i = 108; i < 111; i++) {
        CORE_TEST_ERROR(s.append(i));
    }
    CORE_TEST_EQUAL(build("test108.00109.00110.00"), s);
}

static void testDouble8() {
    String8 s = build("test");
    for(double i = 109; i < 112; i++) {
        CORE_TEST_ERROR(s.append(i));
    }
    CORE_TEST_EQUAL(build("test109.00110.00111.00"), s);
}

static void testLongDouble8() {
    String8 s = build("test");
    for(long double i = 110; i < 113; i++) {
        CORE_TEST_ERROR(s.append(i));
    }
    CORE_TEST_EQUAL(build("test110.00111.00112.00"), s);
}

static void testBool8() {
    String8 s = build("test");
    CORE_TEST_ERROR(s.append(true));
    CORE_TEST_ERROR(s.append(false));
    CORE_TEST_ERROR(s.append(true));
    CORE_TEST_EQUAL(build("testtruefalsetrue"), s);
}

static void testIntOverflow8() {
    Core::ArrayString<4, char> s;
    CORE_TEST_EQUAL(Core::Error::CAPACITY_REACHED, s.append(123456));

    String8 o;
    for(int i = 0; i < s.getCapacity(); i++) {
        CORE_TEST_ERROR(o.append(i + 1));
    }

    CORE_TEST_TRUE(o == s);
}

static void testUnicode8() {
    String8 s;
    CORE_TEST_ERROR(s.append('\u0040'));
    CORE_TEST_ERROR(s.append(L'\u0400'));
    CORE_TEST_ERROR(s.append(L'\u8000'));
    CORE_TEST_ERROR(s.append(U'\U00100000'));
    CORE_TEST_EQUAL(build("\u0040\u0400\u8000\U00100000"), s);
}

static void testClear8() {
    String8 s = build("test");
    CORE_TEST_ERROR(s.append(1234));
    s.clear();
    CORE_TEST_ERROR(s.append("wusi"));
    CORE_TEST_ERROR(s.append("1234"));
    CORE_TEST_EQUAL(build("wusi1234"), s);
}

static void testHashCode8() {
    String8 s;
    CORE_TEST_ERROR(s.append("a"));
    CORE_TEST_ERROR(s.append("bc"));
    CORE_TEST_ERROR(s.append(20));
    CORE_TEST_ERROR(s.append(25.5f));
    CORE_TEST_ERROR(s.append(true));
    CORE_TEST_EQUAL(build("abc2025.50true").hashCode(), s.hashCode());
    s.clear();
    CORE_TEST_EQUAL(String8().hashCode(), s.hashCode());
}

static void testAddSelf8() {
    String8 s;
    CORE_TEST_ERROR(s.append("test1"));
    CORE_TEST_ERROR(s.append(s));
    CORE_TEST_ERROR(s.append(s));
    CORE_TEST_EQUAL(build("test1test1test1test1"), s);
}

static void testAsHashMapKey8() {
    Core::HashMap<String8, int> map;
    CORE_TEST_ERROR(map.add(build("wusi"), 3));
    CORE_TEST_ERROR(map.add(build("hiThere"), 7));
    CORE_TEST_ERROR(map.add(build("baum123"), 5));

    int* a = map.search(build("wusi"));
    int* b = map.search(build("hiThere"));
    int* c = map.search(build("baum123"));
    int* d = map.search(build("423hifd"));

    CORE_TEST_NOT_NULL(a);
    CORE_TEST_NOT_NULL(b);
    CORE_TEST_NOT_NULL(c);
    CORE_TEST_NULL(d);

    if(a != nullptr && b != nullptr && c != nullptr) {
        CORE_TEST_EQUAL(3, *a);
        CORE_TEST_EQUAL(7, *b);
        CORE_TEST_EQUAL(5, *c);
    }
}

static void testStartsWith8() {
    String8 s;
    CORE_TEST_ERROR(s.append("0123456789"));

    String8 s2;
    CORE_TEST_ERROR(s2.append("123"));
    String8 s3;
    CORE_TEST_ERROR(s3.append("234"));
    String8 s4;
    CORE_TEST_ERROR(s4.append("789"));
    String8 s5;
    CORE_TEST_ERROR(s5.append("124"));
    String8 s6;
    String8 s7;
    CORE_TEST_ERROR(s7.append("7891"));

    CORE_TEST_FALSE(s.startsWidth(s2));
    CORE_TEST_TRUE(s.startsWidth(s2, 1));

    CORE_TEST_FALSE(s.startsWidth(s3));
    CORE_TEST_TRUE(s.startsWidth(s3, 2));

    CORE_TEST_FALSE(s.startsWidth(s4));
    CORE_TEST_TRUE(s.startsWidth(s4, 7));

    CORE_TEST_FALSE(s.startsWidth(s5));
    CORE_TEST_FALSE(s.startsWidth(s5, 3));

    CORE_TEST_TRUE(s.startsWidth(s6));
    CORE_TEST_TRUE(s.startsWidth(s6, 3));

    CORE_TEST_FALSE(s.startsWidth(s7));
    CORE_TEST_FALSE(s.startsWidth(s7, 7));
}

static void testSearch8() {
    String8 s;
    CORE_TEST_ERROR(s.append("0123456789"));

    String8 s2;
    CORE_TEST_ERROR(s2.append("123"));
    String8 s3;
    CORE_TEST_ERROR(s3.append("234"));
    String8 s4;
    CORE_TEST_ERROR(s4.append("789"));
    String8 s5;
    CORE_TEST_ERROR(s5.append("124"));
    String8 s6;
    String8 s7;
    CORE_TEST_ERROR(s7.append("7891"));

    CORE_TEST_EQUAL(1, s.search(s2));
    CORE_TEST_EQUAL(2, s.search(s3));
    CORE_TEST_EQUAL(7, s.search(s4));
    CORE_TEST_EQUAL(-1, s.search(s5));
    CORE_TEST_EQUAL(0, s.search(s6));
    CORE_TEST_EQUAL(-1, s.search(s7));

    CORE_TEST_EQUAL(-1, s.search(s2, 3));
    CORE_TEST_EQUAL(-1, s.search(s3, 3));
    CORE_TEST_EQUAL(7, s.search(s4, 3));
    CORE_TEST_EQUAL(-1, s.search(s5, 3));
    CORE_TEST_EQUAL(3, s.search(s6, 3));
    CORE_TEST_EQUAL(-1, s.search(s7, 3));
}

static void testContains8() {
    String8 s;
    CORE_TEST_ERROR(s.append("0123456789"));

    String8 s2;
    CORE_TEST_ERROR(s2.append("123"));
    String8 s3;
    CORE_TEST_ERROR(s3.append("234"));
    String8 s4;
    CORE_TEST_ERROR(s4.append("789"));
    String8 s5;
    CORE_TEST_ERROR(s5.append("124"));
    String8 s6;
    String8 s7;
    CORE_TEST_ERROR(s7.append("7891"));

    CORE_TEST_TRUE(s.contains(s2));
    CORE_TEST_TRUE(s.contains(s3));
    CORE_TEST_TRUE(s.contains(s4));
    CORE_TEST_FALSE(s.contains(s5));
    CORE_TEST_TRUE(s.contains(s6));
    CORE_TEST_FALSE(s.contains(s7));
}

static void testSearchChar8() {
    String8 s;
    CORE_TEST_ERROR(s.append("01üää3ä"));

    CORE_TEST_EQUAL(0, s.search('0'));
    CORE_TEST_EQUAL(1, s.search('1'));
    CORE_TEST_EQUAL(8, s.search('3'));
}

static void testContainsChar8() {
    String8 s;
    CORE_TEST_ERROR(s.append("01üää3ä"));
    CORE_TEST_TRUE(s.contains('0'));
    CORE_TEST_TRUE(s.contains('1'));
    CORE_TEST_TRUE(s.contains('3'));
    CORE_TEST_FALSE(s.contains('a'));
}

static void testSubString8() {
    String8 s;
    CORE_TEST_ERROR(s.append("01üää3ä"));

    CORE_TEST_STRING("01üää3ä", s.substring(-2));
    CORE_TEST_STRING("1üää3ä", s.substring(1));
    CORE_TEST_STRING("üää3ä", s.substring(2));
    CORE_TEST_STRING("ää3ä", s.substring(4));
    CORE_TEST_STRING("ä3ä", s.substring(6));

    CORE_TEST_STRING("01üää3ä", s.substring(0, 10));
    CORE_TEST_STRING("1üää3", s.substring(1, 8));
    CORE_TEST_STRING("üää", s.substring(2, 7));
    CORE_TEST_STRING("ä", s.substring(4, 5));
    CORE_TEST_STRING("", s.substring(4, 2));
    CORE_TEST_STRING("ä3ä", s.substring(6, 23));
}

static void testReplace8() {
    String8 s;
    CORE_TEST_ERROR(s.append("0äääää1üää3ä"));

    String8 search;
    CORE_TEST_ERROR(search.append("ää"));

    String8 replace;
    CORE_TEST_ERROR(replace.append("ABCD"));

    CORE_TEST_ERROR(s.replace(search, replace));

    CORE_TEST_STRING("0ABCDABCDä1üABCD3ä", s);

    String8 s2;
    CORE_TEST_ERROR(s2.append("0ABCDABCDä1üABCD3ä"));
    CORE_TEST_EQUAL(s2.hashCode(), s.hashCode());
}

static void testReplaceChar8() {
    String8 s;
    CORE_TEST_ERROR(s.append("01YXX3X"));
    s.replace('0', 'A');
    CORE_TEST_STRING("A1YXX3X", s);
    s.replace('1', 'B');
    CORE_TEST_STRING("ABYXX3X", s);
    s.replace('Y', 'C');
    CORE_TEST_STRING("ABCXX3X", s);
    s.replace('X', 'D');
    CORE_TEST_STRING("ABCDD3D", s);
    s.replace('3', 'E');
    CORE_TEST_STRING("ABCDDED", s);

    String8 s2;
    CORE_TEST_ERROR(s2.append("ABCDDED"));
    CORE_TEST_EQUAL(s2.hashCode(), s.hashCode());
}

static void testCastAppendSelf8() {
    String8 s;
    CORE_TEST_ERROR(s.append("abc"));
    CORE_TEST_ERROR(s.append(s));
    CORE_TEST_ERROR(s.append(static_cast<const char*>(s)));
    CORE_TEST_STRING("abcabcabcabc", s);
}

static String32 build(const c32* cs) {
    String32 s;
    CORE_TEST_ERROR(s.append(cs));
    return s;
}

static void testEquality32() {
    String32 s = build(U"test");
    CORE_TEST_TRUE(s == U"test");
    CORE_TEST_TRUE(s == build(U"test"));
    CORE_TEST_TRUE(U"test" == s);
    CORE_TEST_TRUE(build(U"test") == s);
    CORE_TEST_TRUE(s == s);
}

static void testUnicodeEquality32() {
    const c32* cs = U"\u0040\u0400\u8000\U00100000";
    String32 s = build(cs);
    CORE_TEST_TRUE(s == cs);
    CORE_TEST_TRUE(s == build(cs));
    CORE_TEST_TRUE(cs == s);
    CORE_TEST_TRUE(build(cs) == s);
    CORE_TEST_TRUE(s == s);
}

static void testInequality32() {
    String32 s = build(U"test");
    CORE_TEST_FALSE(s != U"test");
    CORE_TEST_FALSE(s != build(U"test"));
    CORE_TEST_FALSE(U"test" != s);
    CORE_TEST_FALSE(build(U"test") != s);
    CORE_TEST_FALSE(s != s);
}

static void testStringAppend32() {
    String32 s = build(U"test");
    CORE_TEST_ERROR(s.append(U"22"));
    CORE_TEST_ERROR(s.append(U"333"));
    CORE_TEST_ERROR(s.append(U"4444"));
    CORE_TEST_EQUAL(build(U"test223334444"), s);
}

static void testStringAppendOverflow32() {
    Core::ArrayString<6, c32> s;
    CORE_TEST_ERROR(s.append(U"te"));
    CORE_TEST_EQUAL(Core::Error::CAPACITY_REACHED, s.append(U"23334444"));
    CORE_TEST_TRUE(build(U"te23334444") != s);
}

static void testCharacters32() {
    String32 s = build(U"test");
    CORE_TEST_EQUAL('t', s[0]);
    CORE_TEST_EQUAL('e', s[1]);
    CORE_TEST_EQUAL('s', s[2]);
    CORE_TEST_EQUAL('t', s[3]);
}

static void testLength32() {
    String32 s = build(U"test");
    CORE_TEST_EQUAL(4, s.getLength());
    CORE_TEST_ERROR(s.append(U"aaa"));
    CORE_TEST_EQUAL(7, s.getLength());
}

static void testChar32() {
    String32 s = build(U"test");
    for(char i = 'a'; i < 'd'; i++) {
        CORE_TEST_ERROR(s.append(i));
    }
    CORE_TEST_EQUAL(build(U"testabc"), s);
}

static void testSignedChar32() {
    String32 s = build(U"test");
    for(signed char i = 'b'; i < 'e'; i++) {
        CORE_TEST_ERROR(s.append(i));
    }
    CORE_TEST_EQUAL(build(U"testbcd"), s);
}

static void testUnsignedChar32() {
    String32 s = build(U"test");
    for(unsigned char i = 'c'; i < 'f'; i++) {
        CORE_TEST_ERROR(s.append(i));
    }
    CORE_TEST_EQUAL(build(U"testcde"), s);
}

static void testSignedShort32() {
    String32 s = build(U"test");
    for(signed short i = 100; i < 103; i++) {
        CORE_TEST_ERROR(s.append(i));
    }
    CORE_TEST_EQUAL(build(U"test100101102"), s);
}

static void testUnsignedShort32() {
    String32 s = build(U"test");
    for(unsigned short i = 101; i < 104; i++) {
        CORE_TEST_ERROR(s.append(i));
    }
    CORE_TEST_EQUAL(build(U"test101102103"), s);
}

static void testSignedInt32() {
    String32 s = build(U"test");
    for(signed int i = 102; i < 105; i++) {
        CORE_TEST_ERROR(s.append(i));
    }
    CORE_TEST_EQUAL(build(U"test102103104"), s);
}

static void testUnsignedInt32() {
    String32 s = build(U"test");
    for(unsigned int i = 103; i < 106; i++) {
        CORE_TEST_ERROR(s.append(i));
    }
    CORE_TEST_EQUAL(build(U"test103104105"), s);
}

static void testSignedLong32() {
    String32 s = build(U"test");
    for(signed long i = 104; i < 107; i++) {
        CORE_TEST_ERROR(s.append(i));
    }
    CORE_TEST_EQUAL(build(U"test104105106"), s);
}

static void testUnsignedLong32() {
    String32 s = build(U"test");
    for(unsigned long i = 105; i < 108; i++) {
        CORE_TEST_ERROR(s.append(i));
    }
    CORE_TEST_EQUAL(build(U"test105106107"), s);
}

static void testSignedLongLong32() {
    String32 s = build(U"test");
    for(signed long long i = 106; i < 109; i++) {
        CORE_TEST_ERROR(s.append(i));
    }
    CORE_TEST_EQUAL(build(U"test106107108"), s);
}

static void testUnsignedLongLong32() {
    String32 s = build(U"test");
    for(unsigned long long i = 107; i < 110; i++) {
        CORE_TEST_ERROR(s.append(i));
    }
    CORE_TEST_EQUAL(build(U"test107108109"), s);
}

static void testFloat32() {
    String32 s = build(U"test");
    for(float i = 108; i < 111; i++) {
        CORE_TEST_ERROR(s.append(i));
    }
    CORE_TEST_EQUAL(build(U"test108.00109.00110.00"), s);
}

static void testDouble32() {
    String32 s = build(U"test");
    for(double i = 109; i < 112; i++) {
        CORE_TEST_ERROR(s.append(i));
    }
    CORE_TEST_EQUAL(build(U"test109.00110.00111.00"), s);
}

static void testLongDouble32() {
    String32 s = build(U"test");
    for(long double i = 110; i < 113; i++) {
        CORE_TEST_ERROR(s.append(i));
    }
    CORE_TEST_EQUAL(build(U"test110.00111.00112.00"), s);
}

static void testBool32() {
    String32 s = build(U"test");
    CORE_TEST_ERROR(s.append(true));
    CORE_TEST_ERROR(s.append(false));
    CORE_TEST_ERROR(s.append(true));
    CORE_TEST_EQUAL(build(U"testtruefalsetrue"), s);
}

static void testIntOverflow32() {
    Core::ArrayString<4, c32> s;
    CORE_TEST_EQUAL(Core::Error::CAPACITY_REACHED, s.append(123456));

    String32 o;
    for(int i = 0; i < s.getCapacity(); i++) {
        CORE_TEST_ERROR(o.append(i + 1));
    }

    CORE_TEST_TRUE(o == s);
}

static void testUnicode32() {
    String32 s;
    CORE_TEST_ERROR(s.append('\u0040'));
    CORE_TEST_ERROR(s.append(L'\u0400'));
    CORE_TEST_ERROR(s.append(L'\u8000'));
    CORE_TEST_ERROR(s.append(U'\U00100000'));
    CORE_TEST_EQUAL(build(U"\u0040\u0400\u8000\U00100000"), s);
}

static void testClear32() {
    String32 s = build(U"test");
    CORE_TEST_ERROR(s.append(1234));
    s.clear();
    CORE_TEST_ERROR(s.append(U"wusi"));
    CORE_TEST_ERROR(s.append(U"1234"));
    CORE_TEST_EQUAL(build(U"wusi1234"), s);
}

static void testHashCode32() {
    String32 s;
    CORE_TEST_ERROR(s.append(U"a"));
    CORE_TEST_ERROR(s.append(U"bc"));
    CORE_TEST_ERROR(s.append(20));
    CORE_TEST_ERROR(s.append(25.5f));
    CORE_TEST_ERROR(s.append(true));
    CORE_TEST_EQUAL(build(U"abc2025.50true").hashCode(), s.hashCode());
    s.clear();
    CORE_TEST_EQUAL(String32().hashCode(), s.hashCode());
}

static void testAddSelf32() {
    String32 s;
    CORE_TEST_ERROR(s.append(U"test1"));
    CORE_TEST_ERROR(s.append(s));
    CORE_TEST_ERROR(s.append(s));
    CORE_TEST_EQUAL(build(U"test1test1test1test1"), s);
}

static void testAsHashMapKey32() {
    Core::HashMap<String32, int> map;
    CORE_TEST_ERROR(map.add(build(U"wusi"), 3));
    CORE_TEST_ERROR(map.add(build(U"hiThere"), 7));
    CORE_TEST_ERROR(map.add(build(U"baum123"), 5));

    int* a = map.search(build(U"wusi"));
    int* b = map.search(build(U"hiThere"));
    int* c = map.search(build(U"baum123"));
    int* d = map.search(build(U"423hifd"));

    CORE_TEST_NOT_NULL(a);
    CORE_TEST_NOT_NULL(b);
    CORE_TEST_NOT_NULL(c);
    CORE_TEST_NULL(d);

    if(a != nullptr && b != nullptr && c != nullptr) {
        CORE_TEST_EQUAL(3, *a);
        CORE_TEST_EQUAL(7, *b);
        CORE_TEST_EQUAL(5, *c);
    }
}

static void testStartsWith32() {
    String32 s;
    CORE_TEST_ERROR(s.append(U"0123456789"));

    String32 s2;
    CORE_TEST_ERROR(s2.append(U"123"));
    String32 s3;
    CORE_TEST_ERROR(s3.append(U"234"));
    String32 s4;
    CORE_TEST_ERROR(s4.append(U"789"));
    String32 s5;
    CORE_TEST_ERROR(s5.append(U"124"));
    String32 s6;
    String32 s7;
    CORE_TEST_ERROR(s7.append(U"7891"));

    CORE_TEST_FALSE(s.startsWidth(s2));
    CORE_TEST_TRUE(s.startsWidth(s2, 1));

    CORE_TEST_FALSE(s.startsWidth(s3));
    CORE_TEST_TRUE(s.startsWidth(s3, 2));

    CORE_TEST_FALSE(s.startsWidth(s4));
    CORE_TEST_TRUE(s.startsWidth(s4, 7));

    CORE_TEST_FALSE(s.startsWidth(s5));
    CORE_TEST_FALSE(s.startsWidth(s5, 3));

    CORE_TEST_TRUE(s.startsWidth(s6));
    CORE_TEST_TRUE(s.startsWidth(s6, 3));

    CORE_TEST_FALSE(s.startsWidth(s7));
    CORE_TEST_FALSE(s.startsWidth(s7, 7));
}

static void testSearch32() {
    String32 s;
    CORE_TEST_ERROR(s.append(U"0123456789"));

    String32 s2;
    CORE_TEST_ERROR(s2.append(U"123"));
    String32 s3;
    CORE_TEST_ERROR(s3.append(U"234"));
    String32 s4;
    CORE_TEST_ERROR(s4.append(U"789"));
    String32 s5;
    CORE_TEST_ERROR(s5.append(U"124"));
    String32 s6;
    String32 s7;
    CORE_TEST_ERROR(s7.append(U"7891"));

    CORE_TEST_EQUAL(1, s.search(s2));
    CORE_TEST_EQUAL(2, s.search(s3));
    CORE_TEST_EQUAL(7, s.search(s4));
    CORE_TEST_EQUAL(-1, s.search(s5));
    CORE_TEST_EQUAL(0, s.search(s6));
    CORE_TEST_EQUAL(-1, s.search(s7));

    CORE_TEST_EQUAL(-1, s.search(s2, 3));
    CORE_TEST_EQUAL(-1, s.search(s3, 3));
    CORE_TEST_EQUAL(7, s.search(s4, 3));
    CORE_TEST_EQUAL(-1, s.search(s5, 3));
    CORE_TEST_EQUAL(3, s.search(s6, 3));
    CORE_TEST_EQUAL(-1, s.search(s7, 3));
}

static void testContains32() {
    String32 s;
    CORE_TEST_ERROR(s.append(U"0123456789"));

    String32 s2;
    CORE_TEST_ERROR(s2.append(U"123"));
    String32 s3;
    CORE_TEST_ERROR(s3.append(U"234"));
    String32 s4;
    CORE_TEST_ERROR(s4.append(U"789"));
    String32 s5;
    CORE_TEST_ERROR(s5.append(U"124"));
    String32 s6;
    String32 s7;
    CORE_TEST_ERROR(s7.append(U"7891"));

    CORE_TEST_TRUE(s.contains(s2));
    CORE_TEST_TRUE(s.contains(s3));
    CORE_TEST_TRUE(s.contains(s4));
    CORE_TEST_FALSE(s.contains(s5));
    CORE_TEST_TRUE(s.contains(s6));
    CORE_TEST_FALSE(s.contains(s7));
}

static void testSearchChar32() {
    String32 s;
    CORE_TEST_ERROR(s.append(U"01üää3ä"));

    CORE_TEST_EQUAL(0, s.search('0'));
    CORE_TEST_EQUAL(1, s.search('1'));
    CORE_TEST_EQUAL(5, s.search('3'));
    CORE_TEST_EQUAL(2, s.search(U'ü'));
    CORE_TEST_EQUAL(3, s.search(U'ä'));
    CORE_TEST_EQUAL(4, s.search(U'ä', 4));
    CORE_TEST_EQUAL(6, s.search(U'ä', 5));
}

static void testContainsChar32() {
    String32 s;
    CORE_TEST_ERROR(s.append(U"01üää3ä"));
    CORE_TEST_TRUE(s.contains(U'0'));
    CORE_TEST_TRUE(s.contains(U'1'));
    CORE_TEST_TRUE(s.contains(U'3'));
    CORE_TEST_FALSE(s.contains(U'a'));
    CORE_TEST_TRUE(s.contains(U'0'));
    CORE_TEST_TRUE(s.contains(U'1'));
    CORE_TEST_TRUE(s.contains(U'ü'));
    CORE_TEST_TRUE(s.contains(U'ä'));
    CORE_TEST_FALSE(s.contains(U'ö'));
}

static void testSubString32() {
    String32 s;
    CORE_TEST_ERROR(s.append(U"01üää3ä"));

    CORE_TEST_STRING(U"01üää3ä", s.substring(-2));
    CORE_TEST_STRING(U"1üää3ä", s.substring(1));
    CORE_TEST_STRING(U"üää3ä", s.substring(2));
    CORE_TEST_STRING(U"ää3ä", s.substring(3));
    CORE_TEST_STRING(U"ä3ä", s.substring(4));

    CORE_TEST_STRING(U"01üää3ä", s.substring(0, 6));
    CORE_TEST_STRING(U"1üää3", s.substring(1, 5));
    CORE_TEST_STRING(U"üää", s.substring(2, 4));
    CORE_TEST_STRING(U"ä", s.substring(3, 3));
    CORE_TEST_STRING(U"", s.substring(4, 2));
    CORE_TEST_STRING(U"ä3ä", s.substring(4, 23));
}

static void testReplace32() {
    String32 s;
    CORE_TEST_ERROR(s.append(U"0äääää1üää3ä"));

    String32 search;
    CORE_TEST_ERROR(search.append(U"ää"));

    String32 replace;
    CORE_TEST_ERROR(replace.append(U"ABCD"));

    CORE_TEST_ERROR(s.replace(search, replace));

    CORE_TEST_STRING(U"0ABCDABCDä1üABCD3ä", s);

    String32 s2;
    CORE_TEST_ERROR(s2.append(U"0ABCDABCDä1üABCD3ä"));
    CORE_TEST_EQUAL(s2.hashCode(), s.hashCode());
}

static void testReplaceChar32() {
    String32 s;
    CORE_TEST_ERROR(s.append(U"01üää3ä"));
    s.replace(U'0', U'A');
    CORE_TEST_STRING(U"A1üää3ä", s);
    s.replace(U'1', U'B');
    CORE_TEST_STRING(U"ABüää3ä", s);
    s.replace(U'ü', U'C');
    CORE_TEST_STRING(U"ABCää3ä", s);
    s.replace(U'ä', U'D');
    CORE_TEST_STRING(U"ABCDD3D", s);
    s.replace(U'3', U'E');
    CORE_TEST_STRING(U"ABCDDED", s);

    String32 s2;
    CORE_TEST_ERROR(s2.append(U"ABCDDED"));
    CORE_TEST_EQUAL(s2.hashCode(), s.hashCode());
}

static void testCastAppendSelf32() {
    String32 s;
    CORE_TEST_ERROR(s.append("abc"));
    CORE_TEST_ERROR(s.append(s));
    CORE_TEST_ERROR(s.append(static_cast<const c32*>(s)));
    CORE_TEST_STRING("abcabcabcabc", s);
}

static void testConversion() {
    const c32* a = U"öüewfde_§$§%$ädsf";
    const char* b = "öüewfde_§$§%$ädsf";

    String32 sa;
    CORE_TEST_ERROR(sa.append(a));
    String8 sb;
    CORE_TEST_ERROR(sb.append(b));

    String8 sa2;
    CORE_TEST_ERROR(sa2.append(sa));
    String32 sb2;
    CORE_TEST_ERROR(sb2.append(sb));

    CORE_TEST_STRING(a, sa2);
    CORE_TEST_STRING(b, sb2);
}

void Core::testArrayString() {
    testEquality8();
    testUnicodeEquality8();
    testInequality8();
    testStringAppend8();
    testStringAppendOverflow8();
    testCharacters8();
    testLength8();
    testChar8();
    testSignedChar8();
    testUnsignedChar8();
    testSignedShort8();
    testUnsignedShort8();
    testSignedInt8();
    testUnsignedInt8();
    testSignedLong8();
    testUnsignedLong8();
    testSignedLongLong8();
    testUnsignedLongLong8();
    testFloat8();
    testDouble8();
    testLongDouble8();
    testBool8();
    testIntOverflow8();
    testUnicode8();
    testClear8();
    testHashCode8();
    testAddSelf8();
    testAsHashMapKey8();
    testStartsWith8();
    testSearch8();
    testContains8();
    testSearchChar8();
    testContainsChar8();
    testSubString8();
    testReplace8();
    testReplaceChar8();
    testCastAppendSelf8();

    testEquality32();
    testUnicodeEquality32();
    testInequality32();
    testStringAppend32();
    testStringAppendOverflow32();
    testCharacters32();
    testLength32();
    testChar32();
    testSignedChar32();
    testUnsignedChar32();
    testSignedShort32();
    testUnsignedShort32();
    testSignedInt32();
    testUnsignedInt32();
    testSignedLong32();
    testUnsignedLong32();
    testSignedLongLong32();
    testUnsignedLongLong32();
    testFloat32();
    testDouble32();
    testLongDouble32();
    testBool32();
    testIntOverflow32();
    testUnicode32();
    testClear32();
    testHashCode32();
    testAddSelf32();
    testAsHashMapKey32();
    testStartsWith32();
    testSearch32();
    testContains32();
    testSearchChar32();
    testContainsChar32();
    testSubString32();
    testReplace32();
    testReplaceChar32();
    testCastAppendSelf32();

    testConversion();
}