1 files changed, 141 insertions, 0 deletions
diff --git a/mingling_picker/test/src/test/pos_matcher_test.rs b/mingling_picker/test/src/test/pos_matcher_test.rs
new file mode 100644
index 0000000..b5319f5
--- /dev/null
+++ b/mingling_picker/test/src/test/pos_matcher_test.rs
@@ -0,0 +1,141 @@
+use mingling_picker::PickerArgInfo;
+use mingling_picker::parselib::{MaskedArg, Matcher, PositionalMatcher, UNIX_STYLE, WINDOWS_STYLE};
+
+fn make_args<'a>(pairs: &'a [(&'a str, usize)]) -> Vec<MaskedArg<'a>> {
+    pairs
+        .iter()
+        .map(|&(raw, idx)| MaskedArg { raw, raw_idx: idx })
+        .collect()
+}
+
+// on_match_one — basic
+
+#[test]
+fn test_pos_one_takes_first_non_flag() {
+    let info = PickerArgInfo::new();
+    let args = make_args(&[("--verbose", 0), ("file.txt", 1)]);
+    let result = PositionalMatcher::on_match_one(&args, &UNIX_STYLE, &info);
+    assert_eq!(result, Some(1));
+}
+
+#[test]
+fn test_pos_one_takes_first_if_no_flag() {
+    let info = PickerArgInfo::new();
+    let args = make_args(&[("file.txt", 0)]);
+    let result = PositionalMatcher::on_match_one(&args, &UNIX_STYLE, &info);
+    assert_eq!(result, Some(0));
+}
+
+#[test]
+fn test_pos_one_all_flags_returns_none() {
+    let info = PickerArgInfo::new();
+    let args = make_args(&[("--verbose", 0), ("--name", 1)]);
+    let result = PositionalMatcher::on_match_one(&args, &UNIX_STYLE, &info);
+    assert_eq!(result, None);
+}
+
+#[test]
+fn test_pos_one_empty_returns_none() {
+    let info = PickerArgInfo::new();
+    let args = vec![];
+    let result = PositionalMatcher::on_match_one(&args, &UNIX_STYLE, &info);
+    assert_eq!(result, None);
+}
+
+// on_match_one — after `--`
+
+#[test]
+fn test_pos_one_after_end_takes_even_flag_like() {
+    // After `--`, accept everything including `--verbose`.
+    let info = PickerArgInfo::new();
+    let args = make_args(&[("--", 0), ("--verbose", 1), ("file.txt", 2)]);
+    let result = PositionalMatcher::on_match_one(&args, &UNIX_STYLE, &info);
+    assert_eq!(result, Some(1));
+}
+
+#[test]
+fn test_pos_one_only_end_returns_none() {
+    let info = PickerArgInfo::new();
+    let args = make_args(&[("--", 0)]);
+    let result = PositionalMatcher::on_match_one(&args, &UNIX_STYLE, &info);
+    assert_eq!(result, None);
+}
+
+// on_match_one — Windows style prefix
+
+#[test]
+fn test_pos_one_windows_skips_slash_prefix() {
+    let info = PickerArgInfo::new();
+    let args = make_args(&[("/Verbose", 0), ("file.txt", 1)]);
+    let result = PositionalMatcher::on_match_one(&args, &WINDOWS_STYLE, &info);
+    assert_eq!(result, Some(1));
+}
+
+// on_match_all — basic
+
+#[test]
+fn test_pos_all_collects_non_flags() {
+    let info = PickerArgInfo::new();
+    let args = make_args(&[("--verbose", 0), ("a.txt", 1), ("--name", 2), ("b.txt", 3)]);
+    let result = PositionalMatcher::on_match_all(&args, &UNIX_STYLE, &info);
+    assert_eq!(result, vec![1, 3]);
+}
+
+#[test]
+fn test_pos_all_only_flags_returns_empty() {
+    let info = PickerArgInfo::new();
+    let args = make_args(&[("--a", 0), ("--b", 1)]);
+    let result = PositionalMatcher::on_match_all(&args, &UNIX_STYLE, &info);
+    assert!(result.is_empty());
+}
+
+#[test]
+fn test_pos_all_empty() {
+    let info = PickerArgInfo::new();
+    let args = vec![];
+    let result = PositionalMatcher::on_match_all(&args, &UNIX_STYLE, &info);
+    assert!(result.is_empty());
+}
+
+// on_match_all — after `--`
+
+#[test]
+fn test_pos_all_after_end_accepts_everything() {
+    // After `--`, even `--verbose` is accepted as positional.
+    let info = PickerArgInfo::new();
+    let args = make_args(&[
+        ("--verbose", 0),
+        ("a.txt", 1),
+        ("--", 2),
+        ("--flag", 3),
+        ("b.txt", 4),
+    ]);
+    let result = PositionalMatcher::on_match_all(&args, &UNIX_STYLE, &info);
+    assert_eq!(result, vec![1, 3, 4]);
+}
+
+#[test]
+fn test_pos_all_only_after_end() {
+    let info = PickerArgInfo::new();
+    let args = make_args(&[("--", 0), ("arg1", 1), ("--arg2", 2)]);
+    let result = PositionalMatcher::on_match_all(&args, &UNIX_STYLE, &info);
+    assert_eq!(result, vec![1, 2]);
+}
+
+// on_match_all — mixed before/after `--`
+
+#[test]
+fn test_pos_all_mixed() {
+    let info = PickerArgInfo::new();
+    let args = make_args(&[
+        ("infile", 0),
+        ("--verbose", 1),
+        ("--", 2),
+        ("outfile", 3),
+        ("--extra", 4),
+    ]);
+    let result = PositionalMatcher::on_match_all(&args, &UNIX_STYLE, &info);
+    // Before `--`: "infile" (skip --verbose).
+    // After `--`: everything — "outfile", "--extra".
+    assert_eq!(result, vec![0, 3, 4]);
+}