test(windows): add tests for Windows command line argument parsing

Add comprehensive test cases for Windows command line argument parsing, including edge cases with quotes and backslashes. Tests cover both single argument and multiple argument scenarios.

wfassoc/tests/extra_windows.rs

@@ -0,0 +1,67 @@
+use wfassoc::extra::windows::*;
+
+fn test_cmd_args_ex(s: &str, probe: &[&'static str]) {
+    let rv = CmdArgs::new(s);
+    let inner = rv.get_inner();
+    assert_eq!(inner.len(), probe.len());
+
+    let n = inner.len();
+    for i in 0..n {
+        assert_eq!(inner[i].get_inner(), probe[i]);
+    }
+}
+
+#[test]
+fn test_cmd_args() {
+    // Normal cases
+    test_cmd_args_ex(
+        "MyApp.exe --config ppic.toml",
+        &["MyApp.exe", "--config", "ppic.toml"],
+    );
+    test_cmd_args_ex(
+        r#""C:\Program Files\MyApp\MyApp.exe" --config ppic.toml"#,
+        &[
+            r#"C:\Program Files\MyApp\MyApp.exe"#,
+            "--config",
+            "ppic.toml",
+        ],
+    );
+
+    // Microsoft shitty cases.
+    test_cmd_args_ex(r#""abc" d e"#, &[r#"abc"#, r#"d"#, r#"e"#]);
+    test_cmd_args_ex(r#"a\\b d"e f"g h"#, &[r#"a\\b"#, r#"de fg"#, r#"h"#]);
+    test_cmd_args_ex(r#"a\\\"b c d"#, &[r#"a\"b"#, r#"c"#, r#"d"#]);
+    test_cmd_args_ex(r#"a\\\\"b c" d e"#, &[r#"a\\b c"#, r#"d"#, r#"e"#]);
+    test_cmd_args_ex(r#"a"b"" c d"#, &[r#"ab" c d"#]);
+}
+
+#[test]
+fn test_cmd_arg() {
+    let rv = CmdArg::new(r#""C:\Program Files\MyApp\MyApp.exe""#);
+    assert!(rv.is_ok());
+    assert_eq!(rv.unwrap().get_inner(), r#"C:\Program Files\MyApp\MyApp.exe"#);
+
+    let rv = CmdArg::new("MyApp.exe --config ppic.toml");
+    assert!(rv.is_err());
+
+    let rv = CmdArg::new("");
+    assert!(rv.is_err());
+}
+
+#[test]
+fn test_quote_cmd_arg() {
+    let rv = CmdArg::with_inner(r#"C:\Program Files\MyApp\MyApp.exe"#).to_quoted_string(true);
+    assert_eq!(rv, r#""C:\Program Files\MyApp\MyApp.exe""#)
+}
+
+#[test]
+fn test_quote_cmd_args() {
+    let args = [
+        r#"C:\Program Files\MyApp\MyApp.exe"#,
+        "--config",
+        "ppic.toml",
+    ];
+    let rv = CmdArgs::with_inner(args.iter().map(|s| CmdArg::with_inner(s))).to_quoted_string();
+    assert_eq!(rv, r#""C:\Program Files\MyApp\MyApp.exe" --config ppic.toml"#);
+}
+