1 files changed, 42 insertions, 0 deletions
diff --git a/test/u.cc b/test/u.cc
index 933a4f2..de04e39 100644
--- a/test/u.cc
+++ b/test/u.cc
@@ -681,3 +681,45 @@ TEST(u16, invalid) {
     EXPECT_EQ(it, literal.end());
   }
 }
+
+TEST(u, lookup_gc) {
+  EXPECT_EQ(u::lookup_gc(0x41), u::GeneralCategory::LETTER_UPPERCASE);
+  EXPECT_EQ(u::lookup_gc(0x61), u::GeneralCategory::LETTER_LOWERCASE);
+  EXPECT_EQ(u::lookup_gc(0x1c5), u::GeneralCategory::LETTER_TITLECASE);
+  EXPECT_EQ(u::lookup_gc(0x374), u::GeneralCategory::LETTER_MODIFIER);
+  EXPECT_EQ(u::lookup_gc(0x34ff), u::GeneralCategory::LETTER_OTHER);
+
+  EXPECT_EQ(u::lookup_gc(0x483), u::GeneralCategory::MARK_NONSPACING);
+  EXPECT_EQ(u::lookup_gc(0x93b), u::GeneralCategory::MARK_SPACING_COMBINDING);
+  EXPECT_EQ(u::lookup_gc(0x20de), u::GeneralCategory::MARK_SPACING_ENCLOSING);
+
+  EXPECT_EQ(u::lookup_gc(0xa620), u::GeneralCategory::NUMBER_DIGIT);
+  EXPECT_EQ(u::lookup_gc(0xa6e6), u::GeneralCategory::NUMBER_LETTER);
+  EXPECT_EQ(u::lookup_gc(0xa830), u::GeneralCategory::NUMBER_OTHER);
+
+  EXPECT_EQ(u::lookup_gc(0xfe33), u::GeneralCategory::PUNCTUATION_CONNECTOR);
+  EXPECT_EQ(u::lookup_gc(0xfe58), u::GeneralCategory::PUNCTUATION_DASH);
+  EXPECT_EQ(u::lookup_gc(0xff08), u::GeneralCategory::PUNCTUATION_OPEN);
+  EXPECT_EQ(u::lookup_gc(0xff09), u::GeneralCategory::PUNCTUATION_CLOSE);
+  EXPECT_EQ(u::lookup_gc(0xab), u::GeneralCategory::PUNCTUATION_INITIAL_QUOTE);
+  EXPECT_EQ(u::lookup_gc(0xbb), u::GeneralCategory::PUNCTUATION_FINAL_QUOTE);
+  EXPECT_EQ(u::lookup_gc(0xff1a), u::GeneralCategory::PUNCTUATION_OTHER);
+
+  EXPECT_EQ(u::lookup_gc(0xd7), u::GeneralCategory::SYMBOL_MATH);
+  EXPECT_EQ(u::lookup_gc(0x58f), u::GeneralCategory::SYMBOL_CURRENCY);
+  EXPECT_EQ(u::lookup_gc(0x5e), u::GeneralCategory::SYMBOL_MODIFIER);
+  EXPECT_EQ(u::lookup_gc(0xf03), u::GeneralCategory::SYMBOL_OTHER);
+
+  EXPECT_EQ(u::lookup_gc(0x20), u::GeneralCategory::SEPARATOR_SPACE);
+  EXPECT_EQ(u::lookup_gc(0x2028), u::GeneralCategory::SEPARATOR_LINE);
+  EXPECT_EQ(u::lookup_gc(0x2029), u::GeneralCategory::SEPARATOR_PARAGRAPH);
+
+  EXPECT_EQ(u::lookup_gc(0xa), u::GeneralCategory::OTHER_CONTROL);
+  EXPECT_EQ(u::lookup_gc(0x202d), u::GeneralCategory::OTHER_FORMAT);
+  EXPECT_EQ(u::lookup_gc(0xd800), u::GeneralCategory::OTHER_SURROGATE);
+  EXPECT_EQ(u::lookup_gc(0xdbff), u::GeneralCategory::OTHER_SURROGATE);
+  EXPECT_EQ(u::lookup_gc(0xdfff), u::GeneralCategory::OTHER_SURROGATE);
+  EXPECT_EQ(u::lookup_gc(0xe000), u::GeneralCategory::OTHER_PRIVATE_USE);
+
+  EXPECT_EQ(u::lookup_gc(0xffffffff), u::GeneralCategory::OTHER_UNASSIGNED);
+}