aft/
lib.rs

1// ## Note on `.unwrap()` / `.expect()` usage
2//
3// The remaining `.unwrap()` and `.expect()` calls in `src/` are in:
4// - **Tree-sitter query operations** (parser.rs, zoom.rs, extract.rs, inline.rs,
5//   outline.rs): These operate on AFT's own compiled grammars and query patterns, which
6//   are compile-time constants. Pattern captures and node kinds are guaranteed to exist.
7// - **Checkpoint serialization** (checkpoint.rs): serde_json::to_value on known-good
8//   HashMap<PathBuf, String> types cannot fail.
9// - **lib.rs main loop**: JSON parsing of stdin lines — a malformed line is logged and
10//   skipped, not unwrapped.
11//
12// All production command handlers that process user/agent input return Result or
13// Response::error instead of panicking. Confirmed zero .unwrap()/.expect() in
14// production error paths as of v0.6.3 audit.
15
16pub mod ast_grep_lang;
17pub mod backup;
18pub mod callgraph;
19pub mod calls;
20pub mod checkpoint;
21pub mod commands;
22pub mod config;
23pub mod context;
24pub mod edit;
25pub mod error;
26pub mod extract;
27pub mod format;
28pub mod fuzzy_match;
29pub mod imports;
30pub mod indent;
31pub mod language;
32pub mod lsp;
33pub mod lsp_hints;
34pub mod parser;
35pub mod protocol;
36pub mod symbols;
37
38#[cfg(test)]
39mod tests {
40    use super::*;
41    use config::Config;
42    use error::AftError;
43    use protocol::{RawRequest, Response};
44
45    // --- Protocol serialization ---
46
47    #[test]
48    fn raw_request_deserializes_ping() {
49        let json = r#"{"id":"1","command":"ping"}"#;
50        let req: RawRequest = serde_json::from_str(json).unwrap();
51        assert_eq!(req.id, "1");
52        assert_eq!(req.command, "ping");
53        assert!(req.lsp_hints.is_none());
54    }
55
56    #[test]
57    fn raw_request_deserializes_echo_with_params() {
58        let json = r#"{"id":"2","command":"echo","message":"hello"}"#;
59        let req: RawRequest = serde_json::from_str(json).unwrap();
60        assert_eq!(req.id, "2");
61        assert_eq!(req.command, "echo");
62        // "message" is captured in the flattened params
63        assert_eq!(req.params["message"], "hello");
64    }
65
66    #[test]
67    fn raw_request_preserves_unknown_fields() {
68        let json = r#"{"id":"3","command":"ping","future_field":"abc","nested":{"x":1}}"#;
69        let req: RawRequest = serde_json::from_str(json).unwrap();
70        assert_eq!(req.params["future_field"], "abc");
71        assert_eq!(req.params["nested"]["x"], 1);
72    }
73
74    #[test]
75    fn raw_request_with_lsp_hints() {
76        let json = r#"{"id":"4","command":"ping","lsp_hints":{"completions":["foo","bar"]}}"#;
77        let req: RawRequest = serde_json::from_str(json).unwrap();
78        assert!(req.lsp_hints.is_some());
79        let hints = req.lsp_hints.unwrap();
80        assert_eq!(hints["completions"][0], "foo");
81    }
82
83    #[test]
84    fn response_success_round_trip() {
85        let resp = Response::success("42", serde_json::json!({"command": "pong"}));
86        let json_str = serde_json::to_string(&resp).unwrap();
87        let v: serde_json::Value = serde_json::from_str(&json_str).unwrap();
88        assert_eq!(v["id"], "42");
89        assert_eq!(v["success"], true);
90        assert_eq!(v["command"], "pong");
91    }
92
93    #[test]
94    fn response_error_round_trip() {
95        let resp = Response::error("99", "unknown_command", "unknown command: foo");
96        let json_str = serde_json::to_string(&resp).unwrap();
97        let v: serde_json::Value = serde_json::from_str(&json_str).unwrap();
98        assert_eq!(v["id"], "99");
99        assert_eq!(v["success"], false);
100        assert_eq!(v["code"], "unknown_command");
101        assert_eq!(v["message"], "unknown command: foo");
102    }
103
104    // --- Error formatting ---
105
106    #[test]
107    fn error_display_symbol_not_found() {
108        let err = AftError::SymbolNotFound {
109            name: "foo".into(),
110            file: "bar.rs".into(),
111        };
112        assert_eq!(err.to_string(), "symbol 'foo' not found in bar.rs");
113        assert_eq!(err.code(), "symbol_not_found");
114    }
115
116    #[test]
117    fn error_display_ambiguous_symbol() {
118        let err = AftError::AmbiguousSymbol {
119            name: "Foo".into(),
120            candidates: vec!["a.rs:10".into(), "b.rs:20".into()],
121        };
122        let s = err.to_string();
123        assert!(s.contains("Foo"));
124        assert!(s.contains("a.rs:10, b.rs:20"));
125    }
126
127    #[test]
128    fn error_display_parse_error() {
129        let err = AftError::ParseError {
130            message: "unexpected token".into(),
131        };
132        assert_eq!(err.to_string(), "parse error: unexpected token");
133    }
134
135    #[test]
136    fn error_display_file_not_found() {
137        let err = AftError::FileNotFound {
138            path: "/tmp/missing.rs".into(),
139        };
140        assert_eq!(err.to_string(), "file not found: /tmp/missing.rs");
141    }
142
143    #[test]
144    fn error_display_invalid_request() {
145        let err = AftError::InvalidRequest {
146            message: "missing field".into(),
147        };
148        assert_eq!(err.to_string(), "invalid request: missing field");
149    }
150
151    #[test]
152    fn error_display_checkpoint_not_found() {
153        let err = AftError::CheckpointNotFound {
154            name: "pre-refactor".into(),
155        };
156        assert_eq!(err.to_string(), "checkpoint not found: pre-refactor");
157        assert_eq!(err.code(), "checkpoint_not_found");
158    }
159
160    #[test]
161    fn error_display_no_undo_history() {
162        let err = AftError::NoUndoHistory {
163            path: "src/main.rs".into(),
164        };
165        assert_eq!(err.to_string(), "no undo history for: src/main.rs");
166        assert_eq!(err.code(), "no_undo_history");
167    }
168
169    #[test]
170    fn error_display_ambiguous_match() {
171        let err = AftError::AmbiguousMatch {
172            pattern: "TODO".into(),
173            count: 5,
174        };
175        assert_eq!(
176            err.to_string(),
177            "pattern 'TODO' matches 5 occurrences, expected exactly 1"
178        );
179        assert_eq!(err.code(), "ambiguous_match");
180    }
181
182    #[test]
183    fn error_to_json_has_code_and_message() {
184        let err = AftError::FileNotFound { path: "/x".into() };
185        let j = err.to_error_json();
186        assert_eq!(j["code"], "file_not_found");
187        assert!(j["message"].as_str().unwrap().contains("/x"));
188    }
189
190    // --- Config defaults ---
191
192    #[test]
193    fn config_default_values() {
194        let cfg = Config::default();
195        assert!(cfg.project_root.is_none());
196        assert_eq!(cfg.validation_depth, 1);
197        assert_eq!(cfg.checkpoint_ttl_hours, 24);
198        assert_eq!(cfg.max_symbol_depth, 10);
199        assert_eq!(cfg.formatter_timeout_secs, 10);
200        assert_eq!(cfg.type_checker_timeout_secs, 30);
201    }
202}
aft/lib.rs

aft/
lib.rs
