Make base::IsUnicodeWhitespace('\0') return false.

base/strings/string_util_unittest.cc

Index: base/strings/string_util_unittest.cc
diff --git a/base/strings/string_util_unittest.cc b/base/strings/string_util_unittest.cc
index 187e49e6698160e5629283371766f3df4629b09a..765ba83508c6a1948ecbbe4eb4461b20d5d410e9 100644
--- a/base/strings/string_util_unittest.cc
+++ b/base/strings/string_util_unittest.cc
@@ -1080,6 +1080,26 @@ TEST(StringUtilTest, EqualsCaseInsensitiveASCII) {
   EXPECT_FALSE(EqualsCaseInsensitiveASCII("Asdf", "aSDFz"));
 }
 
+TEST(StringUtilTest, IsUnicodeWhitespace) {
+  // NOT unicode white space.
+  EXPECT_FALSE(IsUnicodeWhitespace(L'\0'));
+  EXPECT_FALSE(IsUnicodeWhitespace(L'A'));
+  EXPECT_FALSE(IsUnicodeWhitespace(L'0'));
+  EXPECT_FALSE(IsUnicodeWhitespace(L'.'));
+  EXPECT_FALSE(IsUnicodeWhitespace(L';'));
+  EXPECT_FALSE(IsUnicodeWhitespace(L'\x4100'));
+
+  // Actual unicode whitespace.
+  EXPECT_TRUE(IsUnicodeWhitespace(L' '));
+  EXPECT_TRUE(IsUnicodeWhitespace(L'\xa0'));
+  EXPECT_TRUE(IsUnicodeWhitespace(L'\x3000'));
+  EXPECT_TRUE(IsUnicodeWhitespace(L'\t'));
+  EXPECT_TRUE(IsUnicodeWhitespace(L'\r'));
+  EXPECT_TRUE(IsUnicodeWhitespace(L'\v'));
+  EXPECT_TRUE(IsUnicodeWhitespace(L'\f'));
+  EXPECT_TRUE(IsUnicodeWhitespace(L'\n'));
+}
+
 class WriteIntoTest : public testing::Test {
  protected:
   static void WritesCorrectly(size_t num_chars) {