icuSources/test/intltest/string_segment_test.cpp

   1 // © 2018 and later: Unicode, Inc. and others.
   2 // License & terms of use: http://www.unicode.org/copyright.html
   3
   4 #include "unicode/utypes.h"
   5
   6 #if !UCONFIG_NO_FORMATTING
   7
   8 #include "string_segment.h"
   9 #include "intltest.h"
  10
  11 class StringSegmentTest : public IntlTest {
  12   public:
  13     void testOffset();
  14     void testLength();
  15     void testCharAt();
  16     void testGetCodePoint();
  17     void testCommonPrefixLength();
  18
  19     void runIndexedTest(int32_t index, UBool exec, const char *&name, char *par = 0);
  20 };
  21
  22 static const char16_t* SAMPLE_STRING = u"📻 radio 📻";
  23
  24 void StringSegmentTest::runIndexedTest(int32_t index, UBool exec, const char*&name, char*) {
  25     if (exec) {
  26         logln("TestSuite StringSegmentTest: ");
  27     }
  28     TESTCASE_AUTO_BEGIN;
  29         TESTCASE_AUTO(testOffset);
  30         TESTCASE_AUTO(testLength);
  31         TESTCASE_AUTO(testCharAt);
  32         TESTCASE_AUTO(testGetCodePoint);
  33         TESTCASE_AUTO(testCommonPrefixLength);
  34     TESTCASE_AUTO_END;
  35 }
  36
  37 void StringSegmentTest::testOffset() {
  38     // Note: sampleString needs function scope so it is valid while the StringSegment is valid
  39     UnicodeString sampleString(SAMPLE_STRING);
  40     StringSegment segment(sampleString, false);
  41     assertEquals("Initial Offset", 0, segment.getOffset());
  42     segment.adjustOffset(3);
  43     assertEquals("Adjust A", 3, segment.getOffset());
  44     segment.adjustOffset(2);
  45     assertEquals("Adjust B", 5, segment.getOffset());
  46     segment.setOffset(4);
  47     assertEquals("Set Offset", 4, segment.getOffset());
  48 }
  49
  50 void StringSegmentTest::testLength() {
  51     // Note: sampleString needs function scope so it is valid while the StringSegment is valid
  52     UnicodeString sampleString(SAMPLE_STRING);
  53     StringSegment segment(sampleString, false);
  54     assertEquals("Initial length", 11, segment.length());
  55     segment.adjustOffset(3);
  56     assertEquals("Adjust", 8, segment.length());
  57     segment.setLength(4);
  58     assertEquals("Set Length", 4, segment.length());
  59     segment.setOffset(5);
  60     assertEquals("After adjust offset", 2, segment.length());
  61     segment.resetLength();
  62     assertEquals("After reset length", 6, segment.length());
  63 }
  64
  65 void StringSegmentTest::testCharAt() {
  66     // Note: sampleString needs function scope so it is valid while the StringSegment is valid
  67     UnicodeString sampleString(SAMPLE_STRING);
  68     StringSegment segment(sampleString, false);
  69     assertEquals("Initial", SAMPLE_STRING, segment.toUnicodeString());
  70     assertEquals("Initial", SAMPLE_STRING, segment.toTempUnicodeString());
  71     segment.adjustOffset(3);
  72     assertEquals("After adjust-offset", UnicodeString(u"radio 📻"), segment.toUnicodeString());
  73     assertEquals("After adjust-offset", UnicodeString(u"radio 📻"), segment.toTempUnicodeString());
  74     segment.setLength(5);
  75     assertEquals("After adjust-length", UnicodeString(u"radio"), segment.toUnicodeString());
  76     assertEquals("After adjust-length", UnicodeString(u"radio"), segment.toTempUnicodeString());
  77 }
  78
  79 void StringSegmentTest::testGetCodePoint() {
  80     // Note: sampleString needs function scope so it is valid while the StringSegment is valid
  81     UnicodeString sampleString(SAMPLE_STRING);
  82     StringSegment segment(sampleString, false);
  83     assertEquals("Double-width code point", 0x1F4FB, segment.getCodePoint());
  84     segment.setLength(1);
  85     assertEquals("Inalid A", -1, segment.getCodePoint());
  86     segment.resetLength();
  87     segment.adjustOffset(1);
  88     assertEquals("Invalid B", -1, segment.getCodePoint());
  89     segment.adjustOffset(1);
  90     assertEquals("Valid again", 0x20, segment.getCodePoint());
  91 }
  92
  93 void StringSegmentTest::testCommonPrefixLength() {
  94     // Note: sampleString needs function scope so it is valid while the StringSegment is valid
  95     UnicodeString sampleString(SAMPLE_STRING);
  96     StringSegment segment(sampleString, false);
  97     assertEquals("", 11, segment.getCommonPrefixLength(SAMPLE_STRING));
  98     assertEquals("", 4, segment.getCommonPrefixLength(u"📻 r"));
  99     assertEquals("", 3, segment.getCommonPrefixLength(u"📻 x"));
 100     assertEquals("", 0, segment.getCommonPrefixLength(u"x"));
 101     segment.adjustOffset(3);
 102     assertEquals("", 0, segment.getCommonPrefixLength(u"RADiO"));
 103     assertEquals("", 5, segment.getCommonPrefixLength(u"radio"));
 104     assertEquals("", 2, segment.getCommonPrefixLength(u"rafio"));
 105     assertEquals("", 0, segment.getCommonPrefixLength(u"fadio"));
 106     segment.setLength(3);
 107     assertEquals("", 3, segment.getCommonPrefixLength(u"radio"));
 108     assertEquals("", 2, segment.getCommonPrefixLength(u"rafio"));
 109     assertEquals("", 0, segment.getCommonPrefixLength(u"fadio"));
 110     segment.resetLength();
 111     segment.setOffset(11); // end of string
 112     assertEquals("", 0, segment.getCommonPrefixLength(u"foo"));
 113 }
 114
 115
 116 extern IntlTest *createStringSegmentTest() {
 117     return new StringSegmentTest();
 118 }
 119
 120 #endif