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unittest for kUTF32_TextEncoding

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git-svn-id: http://skia.googlecode.com/svn/trunk@3390 2bbb7eff-a529-9590-31e7-b0007b416f81
This commit is contained in:
reed@google.com 2012-03-14 20:05:35 +00:00
parent e5d7078747
commit dc5f76d806
1 changed files with 41 additions and 0 deletions
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41
tests/UnicodeTest.cpp
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@ -6,6 +6,7 @@
* found in the LICENSE file.
*/
#include "Test.h"
#include "SkPaint.h"
#include "SkUtils.h"
// Unicode Variation Selector ranges: inclusive
@ -37,8 +38,48 @@ static void test_uvs(skiatest::Reporter* reporter) {
}
}
// Simple test to ensure that when we call textToGlyphs, we get the same
// result (for the same text) when using UTF8, UTF16, UTF32.
// TODO: make the text more complex (i.e. incorporate chars>7bits)
static void test_textencodings(skiatest::Reporter* reporter) {
const char text8[] = "ABCDEFGabcdefg0123456789";
uint16_t text16[sizeof(text8)];
int32_t text32[sizeof(text8)];
size_t len8 = strlen(text8);
size_t len16 = len8 * 2;
size_t len32 = len8 * 4;
// expand our 8bit chars to 16 and 32
for (size_t i = 0; i < len8; ++i) {
text32[i] = text16[i] = text8[i];
}
uint16_t glyphs8[sizeof(text8)];
uint16_t glyphs16[sizeof(text8)];
uint16_t glyphs32[sizeof(text8)];
SkPaint paint;
paint.setTextEncoding(SkPaint::kUTF8_TextEncoding);
int count8 = paint.textToGlyphs(text8, len8, glyphs8);
paint.setTextEncoding(SkPaint::kUTF16_TextEncoding);
int count16 = paint.textToGlyphs(text16, len16, glyphs16);
paint.setTextEncoding(SkPaint::kUTF32_TextEncoding);
int count32 = paint.textToGlyphs(text32, len32, glyphs32);
REPORTER_ASSERT(reporter, len8 == count8);
REPORTER_ASSERT(reporter, len8 == count16);
REPORTER_ASSERT(reporter, len8 == count32);
REPORTER_ASSERT(reporter, !memcmp(glyphs8, glyphs16, count8 * sizeof(uint16_t)));
REPORTER_ASSERT(reporter, !memcmp(glyphs8, glyphs32, count8 * sizeof(uint16_t)));
}
static void TestUnicode(skiatest::Reporter* reporter) {
test_uvs(reporter);
test_textencodings(reporter);
}
#include "TestClassDef.h"