Vendor dependencies for 0.3.0 release

vendor/unicode-properties/tests/emoji.rs

@@ -0,0 +1,28 @@
+#![cfg(feature = "emoji")]
+
+#[test]
+fn all_ascii_are_either_nonemoji_or_emojiother() {
+    use unicode_properties::EmojiStatus;
+    use unicode_properties::UnicodeEmoji;
+    for i in 0u8..=255u8 {
+        let c = i as char;
+        let s = c.emoji_status();
+        assert!(matches!(
+            s,
+            EmojiStatus::NonEmoji
+                | EmojiStatus::EmojiOther
+                | EmojiStatus::EmojiOtherAndEmojiComponent
+        ))
+    }
+}
+
+#[test]
+fn emoji_test() {
+    use std::ops::Not;
+    use unicode_properties::EmojiStatus;
+    use unicode_properties::UnicodeEmoji;
+    assert_eq!('🦀'.emoji_status(), EmojiStatus::EmojiPresentation);
+    assert!('🦀'.is_emoji_char());
+    assert!('🦀'.is_emoji_component().not());
+    assert!('🦀'.is_emoji_char_or_emoji_component());
+}