1 files changed, 40 insertions, 0 deletions
diff --git a/vendor/dissimilar/tests/test.rs b/vendor/dissimilar/tests/test.rs
new file mode 100644
index 000000000..e68fd4f11
--- /dev/null
+++ b/vendor/dissimilar/tests/test.rs
@@ -0,0 +1,40 @@
+// Upstream diff-match-patch's test suite is imported as unit tests in
+// src/tests.rs, as they test APIs which are private in the Rust implementation.
+//
+// This directory is for Rust-specific integration tests and regression tests.
+
+#![allow(clippy::non_ascii_literal)]
+
+use dissimilar::{diff, Chunk};
+
+#[test]
+fn test_unicode() {
+    // Unicode snowman and unicode comet have the same first two bytes. A
+    // byte-based diff would produce a 2-byte Equal followed by 1-byte Delete
+    // and Insert.
+    let snowman = "\u{2603}";
+    let comet = "\u{2604}";
+    assert_eq!(snowman.as_bytes()[..2], comet.as_bytes()[..2]);
+
+    let d = diff(snowman, comet);
+    assert_eq!(d, vec![Chunk::Delete(snowman), Chunk::Insert(comet)]);
+}
+
+#[test]
+fn test_unicode2() {
+    let a = "[乀丁abcd一]";
+    let b = "[一abcd丁]";
+    let d = diff(a, b);
+    assert_eq!(
+        d,
+        vec![
+            Chunk::Equal("["),
+            Chunk::Delete("乀丁"),
+            Chunk::Insert("一"),
+            Chunk::Equal("abcd"),
+            Chunk::Delete("一"),
+            Chunk::Insert("丁"),
+            Chunk::Equal("]"),
+        ]
+    );
+}