Add test for streamsafe iterator

Manishearth · Manishearth · commit a558091468b0 · 2020-11-17T19:39:42.000-08:00
diff --git a/tests/test_streamsafe_regression.rs b/tests/test_streamsafe_regression.rs
@@ -0,0 +1,14 @@
+use unicode_normalization::{
+    char::canonical_combining_class, is_nfc, is_nfc_stream_safe, UnicodeNormalization,
+};
+
+#[test]
+fn test_streamsafe_regression(){
+    let input = "\u{342}".repeat(55) + &"\u{344}".repeat(3);
+    let nfc_ss = input.chars().nfc().stream_safe().collect::<String>();
+
+    // The result should be NFC:
+    assert!(is_nfc(&nfc_ss));
+    // and should be stream-safe:
+    assert!(is_nfc_stream_safe(&nfc_ss))
+}
