add SkUnichar_IsVariationSelector()

git-svn-id: http://skia.googlecode.com/svn/trunk@2915 2bbb7eff-a529-9590-31e7-b0007b416f81

1 files changed, 45 insertions, 0 deletions

diff --git a/tests/UnicodeTest.cpp b/tests/UnicodeTest.cpp
new file mode 100644
index 0000000000..602ff81431
--- /dev/null
+++ b/tests/UnicodeTest.cpp
@@ -0,0 +1,45 @@
+
+/*
+ * Copyright 2011 Google Inc.
+ *
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+#include "Test.h"
+#include "SkUtils.h"
+
+// Unicode Variation Selector ranges: inclusive
+#define UVS_MIN0    0x180B
+#define UVS_MAX0    0x180D
+#define UVS_MIN1    0xFE00
+#define UVS_MAX1    0xFE0F
+#define UVS_MIN2    0xE0100
+#define UVS_MAX2    0xE01EF
+
+static bool isUVS(SkUnichar uni) {
+    return (uni >= UVS_MIN0 && uni <= UVS_MAX0) ||
+           (uni >= UVS_MIN1 && uni <= UVS_MAX1) ||
+           (uni >= UVS_MIN2 && uni <= UVS_MAX2);
+}
+
+static void test_uvs(skiatest::Reporter* reporter) {
+    // [min, max], [min, max] ... inclusive
+    static const SkUnichar gRanges[] = {
+        UVS_MIN0, UVS_MAX0, UVS_MIN1, UVS_MAX1, UVS_MIN2, UVS_MAX2
+    };
+
+    for (size_t i = 0; i < SK_ARRAY_COUNT(gRanges); i += 2) {
+        for (SkUnichar uni = gRanges[i] - 8; uni <= gRanges[i+1] + 8; ++uni) {
+            bool uvs0 = isUVS(uni);
+            bool uvs1 = SkUnichar_IsVariationSelector(uni);
+            REPORTER_ASSERT(reporter, uvs0 == uvs1);
+        }
+    }
+}
+
+static void TestUnicode(skiatest::Reporter* reporter) {
+    test_uvs(reporter);
+}
+
+#include "TestClassDef.h"
+DEFINE_TESTCLASS("Unicode", TestUnicodeClass, TestUnicode)