1 files changed, 53 insertions, 0 deletions
diff --git a/third_party/rust/ron/tests/preserve_sequence.rs b/third_party/rust/ron/tests/preserve_sequence.rs
new file mode 100644
index 0000000000..db34a1d397
--- /dev/null
+++ b/third_party/rust/ron/tests/preserve_sequence.rs
@@ -0,0 +1,53 @@
+use ron::{
+    de::from_str,
+    ser::{to_string_pretty, PrettyConfig},
+};
+use serde::{Deserialize, Serialize};
+use std::collections::BTreeMap;
+
+#[derive(Debug, Deserialize, Serialize)]
+struct Config {
+    boolean: bool,
+    float: f32,
+    map: BTreeMap<u8, char>,
+    nested: Nested,
+    tuple: (u32, u32),
+}
+
+#[derive(Debug, Deserialize, Serialize)]
+struct Nested {
+    a: String,
+    b: char,
+}
+
+fn read_original(source: &str) -> String {
+    source.to_string().replace("\r\n", "\n")
+}
+
+fn make_roundtrip(source: &str) -> String {
+    let config: Config = match from_str(source) {
+        Ok(x) => x,
+        Err(e) => {
+            println!("Failed to load config: {}", e);
+            std::process::exit(1);
+        }
+    };
+    let pretty = PrettyConfig::new()
+        .with_depth_limit(3)
+        .with_separate_tuple_members(true)
+        .with_enumerate_arrays(true)
+        .with_new_line("\n".into());
+    to_string_pretty(&config, pretty).expect("Serialization failed")
+}
+
+#[test]
+fn test_sequence_ex1() {
+    let file = include_str!("preserve_sequence_ex1.ron");
+    assert_eq!(read_original(file), make_roundtrip(file));
+}
+
+#[test]
+fn test_sequence_ex2() {
+    let file = include_str!("preserve_sequence_ex2.ron");
+    assert_eq!(read_original(file), make_roundtrip(file));
+}