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[apple/icu.git] / icuSources / test / intltest / numbertest_affixutils.cpp
diff --git a/icuSources/test/intltest/numbertest_affixutils.cpp b/icuSources/test/intltest/numbertest_affixutils.cpp
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+// © 2017 and later: Unicode, Inc. and others.
+// License & terms of use: http://www.unicode.org/copyright.html
+
+#include "unicode/utypes.h"
+
+#if !UCONFIG_NO_FORMATTING
+
+#include "putilimp.h"
+#include "unicode/dcfmtsym.h"
+#include "numbertest.h"
+#include "number_utils.h"
+
+using namespace icu::number::impl;
+
+class DefaultSymbolProvider : public SymbolProvider {
+    DecimalFormatSymbols fSymbols;
+
+  public:
+    DefaultSymbolProvider(UErrorCode &status) : fSymbols(Locale("ar_SA"), status) {}
+
+    UnicodeString getSymbol(AffixPatternType type) const U_OVERRIDE {
+        switch (type) {
+            case TYPE_MINUS_SIGN:
+                return u"−";
+            case TYPE_PLUS_SIGN:
+                return fSymbols.getConstSymbol(DecimalFormatSymbols::ENumberFormatSymbol::kPlusSignSymbol);
+            case TYPE_PERCENT:
+                return fSymbols.getConstSymbol(DecimalFormatSymbols::ENumberFormatSymbol::kPercentSymbol);
+            case TYPE_PERMILLE:
+                return fSymbols.getConstSymbol(DecimalFormatSymbols::ENumberFormatSymbol::kPerMillSymbol);
+            case TYPE_CURRENCY_SINGLE:
+                return u"$";
+            case TYPE_CURRENCY_DOUBLE:
+                return u"XXX";
+            case TYPE_CURRENCY_TRIPLE:
+                return u"long name";
+            case TYPE_CURRENCY_QUAD:
+                return u"\uFFFD";
+            case TYPE_CURRENCY_QUINT:
+                // TODO: Add support for narrow currency symbols here.
+                return u"\uFFFD";
+            case TYPE_CURRENCY_OVERFLOW:
+                return u"\uFFFD";
+            default:
+                U_ASSERT(false);
+                return {}; // silence compiler warnings
+        }
+    }
+};
+
+void AffixUtilsTest::runIndexedTest(int32_t index, UBool exec, const char *&name, char *) {
+    if (exec) {
+        logln("TestSuite AffixUtilsTest: ");
+    }
+    TESTCASE_AUTO_BEGIN;
+        TESTCASE_AUTO(testEscape);
+        TESTCASE_AUTO(testUnescape);
+        TESTCASE_AUTO(testContainsReplaceType);
+        TESTCASE_AUTO(testInvalid);
+        TESTCASE_AUTO(testUnescapeWithSymbolProvider);
+    TESTCASE_AUTO_END;
+}
+
+void AffixUtilsTest::testEscape() {
+    static const char16_t *cases[][2] = {{u"", u""},
+                                         {u"abc", u"abc"},
+                                         {u"-", u"'-'"},
+                                         {u"-!", u"'-'!"},
+                                         {u"−", u"−"},
+                                         {u"---", u"'---'"},
+                                         {u"-%-", u"'-%-'"},
+                                         {u"'", u"''"},
+                                         {u"-'", u"'-'''"},
+                                         {u"-'-", u"'-''-'"},
+                                         {u"a-'-", u"a'-''-'"}};
+
+    for (auto &cas : cases) {
+        UnicodeString input(cas[0]);
+        UnicodeString expected(cas[1]);
+        UnicodeString result = AffixUtils::escape(input);
+        assertEquals(input, expected, result);
+    }
+}
+
+void AffixUtilsTest::testUnescape() {
+    static struct TestCase {
+        const char16_t *input;
+        bool currency;
+        int32_t expectedLength;
+        const char16_t *output;
+    } cases[] = {{u"", false, 0, u""},
+                 {u"abc", false, 3, u"abc"},
+                 {u"-", false, 1, u"−"},
+                 {u"-!", false, 2, u"−!"},
+                 {u"+", false, 1, u"\u061C+"},
+                 {u"+!", false, 2, u"\u061C+!"},
+                 {u"‰", false, 1, u"؉"},
+                 {u"‰!", false, 2, u"؉!"},
+                 {u"-x", false, 2, u"−x"},
+                 {u"'-'x", false, 2, u"-x"},
+                 {u"'--''-'-x", false, 6, u"--'-−x"},
+                 {u"''", false, 1, u"'"},
+                 {u"''''", false, 2, u"''"},
+                 {u"''''''", false, 3, u"'''"},
+                 {u"''x''", false, 3, u"'x'"},
+                 {u"¤", true, 1, u"$"},
+                 {u"¤¤", true, 2, u"XXX"},
+                 {u"¤¤¤", true, 3, u"long name"},
+                 {u"¤¤¤¤", true, 4, u"\uFFFD"},
+                 {u"¤¤¤¤¤", true, 5, u"\uFFFD"},
+                 {u"¤¤¤¤¤¤", true, 6, u"\uFFFD"},
+                 {u"¤¤¤a¤¤¤¤", true, 8, u"long namea\uFFFD"},
+                 {u"a¤¤¤¤b¤¤¤¤¤c", true, 12, u"a\uFFFDb\uFFFDc"},
+                 {u"¤!", true, 2, u"$!"},
+                 {u"¤¤!", true, 3, u"XXX!"},
+                 {u"¤¤¤!", true, 4, u"long name!"},
+                 {u"-¤¤", true, 3, u"−XXX"},
+                 {u"¤¤-", true, 3, u"XXX−"},
+                 {u"'¤'", false, 1, u"¤"},
+                 {u"%", false, 1, u"٪\u061C"},
+                 {u"'%'", false, 1, u"%"},
+                 {u"¤'-'%", true, 3, u"$-٪\u061C"},
+                 {u"#0#@#*#;#", false, 9, u"#0#@#*#;#"}};
+
+    UErrorCode status = U_ZERO_ERROR;
+    DefaultSymbolProvider defaultProvider(status);
+    assertSuccess("Constructing DefaultSymbolProvider", status);
+
+    for (TestCase cas : cases) {
+        UnicodeString input(cas.input);
+        UnicodeString output(cas.output);
+
+        assertEquals(input, cas.currency, AffixUtils::hasCurrencySymbols(input, status));
+        assertSuccess("Spot 1", status);
+        assertEquals(input, cas.expectedLength, AffixUtils::estimateLength(input, status));
+        assertSuccess("Spot 2", status);
+
+        UnicodeString actual = unescapeWithDefaults(defaultProvider, input, status);
+        assertSuccess("Spot 3", status);
+        assertEquals(input, output, actual);
+
+        int32_t ulength = AffixUtils::unescapedCodePointCount(input, defaultProvider, status);
+        assertSuccess("Spot 4", status);
+        assertEquals(input, output.countChar32(), ulength);
+    }
+}
+
+void AffixUtilsTest::testContainsReplaceType() {
+    static struct TestCase {
+        const char16_t *input;
+        bool hasMinusSign;
+        const char16_t *output;
+    } cases[] = {{u"", false, u""},
+                 {u"-", true, u"+"},
+                 {u"-a", true, u"+a"},
+                 {u"a-", true, u"a+"},
+                 {u"a-b", true, u"a+b"},
+                 {u"--", true, u"++"},
+                 {u"x", false, u"x"}};
+
+    UErrorCode status = U_ZERO_ERROR;
+    for (TestCase cas : cases) {
+        UnicodeString input(cas.input);
+        bool hasMinusSign = cas.hasMinusSign;
+        UnicodeString output(cas.output);
+
+        assertEquals(
+                input, hasMinusSign, AffixUtils::containsType(input, TYPE_MINUS_SIGN, status));
+        assertSuccess("Spot 1", status);
+        assertEquals(
+                input, output, AffixUtils::replaceType(input, TYPE_MINUS_SIGN, u'+', status));
+        assertSuccess("Spot 2", status);
+    }
+}
+
+void AffixUtilsTest::testInvalid() {
+    static const char16_t *invalidExamples[] = {
+            u"'", u"x'", u"'x", u"'x''", u"''x'"};
+
+    UErrorCode status = U_ZERO_ERROR;
+    DefaultSymbolProvider defaultProvider(status);
+    assertSuccess("Constructing DefaultSymbolProvider", status);
+
+    for (const char16_t *strPtr : invalidExamples) {
+        UnicodeString str(strPtr);
+
+        status = U_ZERO_ERROR;
+        AffixUtils::hasCurrencySymbols(str, status);
+        assertEquals("Should set error code spot 1", status, U_ILLEGAL_ARGUMENT_ERROR);
+
+        status = U_ZERO_ERROR;
+        AffixUtils::estimateLength(str, status);
+        assertEquals("Should set error code spot 2", status, U_ILLEGAL_ARGUMENT_ERROR);
+
+        status = U_ZERO_ERROR;
+        unescapeWithDefaults(defaultProvider, str, status);
+        assertEquals("Should set error code spot 3", status, U_ILLEGAL_ARGUMENT_ERROR);
+    }
+}
+
+class NumericSymbolProvider : public SymbolProvider {
+  public:
+    virtual UnicodeString getSymbol(AffixPatternType type) const {
+        return Int64ToUnicodeString(type < 0 ? -type : type);
+    }
+};
+
+void AffixUtilsTest::testUnescapeWithSymbolProvider() {
+    static const char16_t* cases[][2] = {
+            {u"", u""},
+            {u"-", u"1"},
+            {u"'-'", u"-"},
+            {u"- + % ‰ ¤ ¤¤ ¤¤¤ ¤¤¤¤ ¤¤¤¤¤", u"1 2 3 4 5 6 7 8 9"},
+            {u"'¤¤¤¤¤¤'", u"¤¤¤¤¤¤"},
+            {u"¤¤¤¤¤¤", u"\uFFFD"}
+    };
+
+    NumericSymbolProvider provider;
+
+    UErrorCode status = U_ZERO_ERROR;
+    NumberStringBuilder sb;
+    for (auto& cas : cases) {
+        UnicodeString input(cas[0]);
+        UnicodeString expected(cas[1]);
+        sb.clear();
+        AffixUtils::unescape(input, sb, 0, provider, status);
+        assertSuccess("Spot 1", status);
+        assertEquals(input, expected, sb.toUnicodeString());
+        assertEquals(input, expected, sb.toTempUnicodeString());
+    }
+
+    // Test insertion position
+    sb.clear();
+    sb.append(u"abcdefg", UNUM_FIELD_COUNT, status);
+    assertSuccess("Spot 2", status);
+    AffixUtils::unescape(u"-+%", sb, 4, provider, status);
+    assertSuccess("Spot 3", status);
+    assertEquals(u"Symbol provider into middle", u"abcd123efg", sb.toUnicodeString());
+}
+
+UnicodeString AffixUtilsTest::unescapeWithDefaults(const SymbolProvider &defaultProvider,
+                                                          UnicodeString input, UErrorCode &status) {
+    NumberStringBuilder nsb;
+    int32_t length = AffixUtils::unescape(input, nsb, 0, defaultProvider, status);
+    assertEquals("Return value of unescape", nsb.length(), length);
+    return nsb.toUnicodeString();
+}
+
+#endif /* #if !UCONFIG_NO_FORMATTING */