X-Git-Url: https://git.saurik.com/apple/icu.git/blobdiff_plain/a01113dcd0f39d5da295ef82785beff9ed86fe38..340931cb2e044a2141d11567dd0f782524e32994:/icuSources/test/intltest/string_segment_test.cpp

diff --git a/icuSources/test/intltest/string_segment_test.cpp b/icuSources/test/intltest/string_segment_test.cpp
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+++ b/icuSources/test/intltest/string_segment_test.cpp
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+// © 2018 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 "string_segment.h"
+#include "intltest.h"
+
+class StringSegmentTest : public IntlTest {
+  public:
+    void testOffset();
+    void testLength();
+    void testCharAt();
+    void testGetCodePoint();
+    void testCommonPrefixLength();
+
+    void runIndexedTest(int32_t index, UBool exec, const char *&name, char *par = 0);
+};
+
+static const char16_t* SAMPLE_STRING = u"📻 radio 📻";
+
+void StringSegmentTest::runIndexedTest(int32_t index, UBool exec, const char*&name, char*) {
+    if (exec) {
+        logln("TestSuite StringSegmentTest: ");
+    }
+    TESTCASE_AUTO_BEGIN;
+        TESTCASE_AUTO(testOffset);
+        TESTCASE_AUTO(testLength);
+        TESTCASE_AUTO(testCharAt);
+        TESTCASE_AUTO(testGetCodePoint);
+        TESTCASE_AUTO(testCommonPrefixLength);
+    TESTCASE_AUTO_END;
+}
+
+void StringSegmentTest::testOffset() {
+    // Note: sampleString needs function scope so it is valid while the StringSegment is valid
+    UnicodeString sampleString(SAMPLE_STRING);
+    StringSegment segment(sampleString, false);
+    assertEquals("Initial Offset", 0, segment.getOffset());
+    segment.adjustOffset(3);
+    assertEquals("Adjust A", 3, segment.getOffset());
+    segment.adjustOffset(2);
+    assertEquals("Adjust B", 5, segment.getOffset());
+    segment.setOffset(4);
+    assertEquals("Set Offset", 4, segment.getOffset());
+}
+
+void StringSegmentTest::testLength() {
+    // Note: sampleString needs function scope so it is valid while the StringSegment is valid
+    UnicodeString sampleString(SAMPLE_STRING);
+    StringSegment segment(sampleString, false);
+    assertEquals("Initial length", 11, segment.length());
+    segment.adjustOffset(3);
+    assertEquals("Adjust", 8, segment.length());
+    segment.setLength(4);
+    assertEquals("Set Length", 4, segment.length());
+    segment.setOffset(5);
+    assertEquals("After adjust offset", 2, segment.length());
+    segment.resetLength();
+    assertEquals("After reset length", 6, segment.length());
+}
+
+void StringSegmentTest::testCharAt() {
+    // Note: sampleString needs function scope so it is valid while the StringSegment is valid
+    UnicodeString sampleString(SAMPLE_STRING);
+    StringSegment segment(sampleString, false);
+    assertEquals("Initial", SAMPLE_STRING, segment.toUnicodeString());
+    assertEquals("Initial", SAMPLE_STRING, segment.toTempUnicodeString());
+    segment.adjustOffset(3);
+    assertEquals("After adjust-offset", UnicodeString(u"radio 📻"), segment.toUnicodeString());
+    assertEquals("After adjust-offset", UnicodeString(u"radio 📻"), segment.toTempUnicodeString());
+    segment.setLength(5);
+    assertEquals("After adjust-length", UnicodeString(u"radio"), segment.toUnicodeString());
+    assertEquals("After adjust-length", UnicodeString(u"radio"), segment.toTempUnicodeString());
+}
+
+void StringSegmentTest::testGetCodePoint() {
+    // Note: sampleString needs function scope so it is valid while the StringSegment is valid
+    UnicodeString sampleString(SAMPLE_STRING);
+    StringSegment segment(sampleString, false);
+    assertEquals("Double-width code point", 0x1F4FB, segment.getCodePoint());
+    segment.setLength(1);
+    assertEquals("Inalid A", -1, segment.getCodePoint());
+    segment.resetLength();
+    segment.adjustOffset(1);
+    assertEquals("Invalid B", -1, segment.getCodePoint());
+    segment.adjustOffset(1);
+    assertEquals("Valid again", 0x20, segment.getCodePoint());
+}
+
+void StringSegmentTest::testCommonPrefixLength() {
+    // Note: sampleString needs function scope so it is valid while the StringSegment is valid
+    UnicodeString sampleString(SAMPLE_STRING);
+    StringSegment segment(sampleString, false);
+    assertEquals("", 11, segment.getCommonPrefixLength(SAMPLE_STRING));
+    assertEquals("", 4, segment.getCommonPrefixLength(u"📻 r"));
+    assertEquals("", 3, segment.getCommonPrefixLength(u"📻 x"));
+    assertEquals("", 0, segment.getCommonPrefixLength(u"x"));
+    segment.adjustOffset(3);
+    assertEquals("", 0, segment.getCommonPrefixLength(u"RADiO"));
+    assertEquals("", 5, segment.getCommonPrefixLength(u"radio"));
+    assertEquals("", 2, segment.getCommonPrefixLength(u"rafio"));
+    assertEquals("", 0, segment.getCommonPrefixLength(u"fadio"));
+    segment.setLength(3);
+    assertEquals("", 3, segment.getCommonPrefixLength(u"radio"));
+    assertEquals("", 2, segment.getCommonPrefixLength(u"rafio"));
+    assertEquals("", 0, segment.getCommonPrefixLength(u"fadio"));
+    segment.resetLength();
+    segment.setOffset(11); // end of string
+    assertEquals("", 0, segment.getCommonPrefixLength(u"foo"));
+}
+
+
+extern IntlTest *createStringSegmentTest() {
+    return new StringSegmentTest();
+}
+
+#endif