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 search_index;
37pub mod symbols;
38
39#[cfg(test)]
40mod tests {
41    use super::*;
42    use config::Config;
43    use error::AftError;
44    use protocol::{RawRequest, Response};
45
46    // --- Protocol serialization ---
47
48    #[test]
49    fn raw_request_deserializes_ping() {
50        let json = r#"{"id":"1","command":"ping"}"#;
51        let req: RawRequest = serde_json::from_str(json).unwrap();
52        assert_eq!(req.id, "1");
53        assert_eq!(req.command, "ping");
54        assert!(req.lsp_hints.is_none());
55    }
56
57    #[test]
58    fn raw_request_deserializes_echo_with_params() {
59        let json = r#"{"id":"2","command":"echo","message":"hello"}"#;
60        let req: RawRequest = serde_json::from_str(json).unwrap();
61        assert_eq!(req.id, "2");
62        assert_eq!(req.command, "echo");
63        // "message" is captured in the flattened params
64        assert_eq!(req.params["message"], "hello");
65    }
66
67    #[test]
68    fn raw_request_preserves_unknown_fields() {
69        let json = r#"{"id":"3","command":"ping","future_field":"abc","nested":{"x":1}}"#;
70        let req: RawRequest = serde_json::from_str(json).unwrap();
71        assert_eq!(req.params["future_field"], "abc");
72        assert_eq!(req.params["nested"]["x"], 1);
73    }
74
75    #[test]
76    fn raw_request_with_lsp_hints() {
77        let json = r#"{"id":"4","command":"ping","lsp_hints":{"completions":["foo","bar"]}}"#;
78        let req: RawRequest = serde_json::from_str(json).unwrap();
79        assert!(req.lsp_hints.is_some());
80        let hints = req.lsp_hints.unwrap();
81        assert_eq!(hints["completions"][0], "foo");
82    }
83
84    #[test]
85    fn response_success_round_trip() {
86        let resp = Response::success("42", serde_json::json!({"command": "pong"}));
87        let json_str = serde_json::to_string(&resp).unwrap();
88        let v: serde_json::Value = serde_json::from_str(&json_str).unwrap();
89        assert_eq!(v["id"], "42");
90        assert_eq!(v["success"], true);
91        assert_eq!(v["command"], "pong");
92    }
93
94    #[test]
95    fn response_error_round_trip() {
96        let resp = Response::error("99", "unknown_command", "unknown command: foo");
97        let json_str = serde_json::to_string(&resp).unwrap();
98        let v: serde_json::Value = serde_json::from_str(&json_str).unwrap();
99        assert_eq!(v["id"], "99");
100        assert_eq!(v["success"], false);
101        assert_eq!(v["code"], "unknown_command");
102        assert_eq!(v["message"], "unknown command: foo");
103    }
104
105    // --- Error formatting ---
106
107    #[test]
108    fn error_display_symbol_not_found() {
109        let err = AftError::SymbolNotFound {
110            name: "foo".into(),
111            file: "bar.rs".into(),
112        };
113        assert_eq!(err.to_string(), "symbol 'foo' not found in bar.rs");
114        assert_eq!(err.code(), "symbol_not_found");
115    }
116
117    #[test]
118    fn error_display_ambiguous_symbol() {
119        let err = AftError::AmbiguousSymbol {
120            name: "Foo".into(),
121            candidates: vec!["a.rs:10".into(), "b.rs:20".into()],
122        };
123        let s = err.to_string();
124        assert!(s.contains("Foo"));
125        assert!(s.contains("a.rs:10, b.rs:20"));
126    }
127
128    #[test]
129    fn error_display_parse_error() {
130        let err = AftError::ParseError {
131            message: "unexpected token".into(),
132        };
133        assert_eq!(err.to_string(), "parse error: unexpected token");
134    }
135
136    #[test]
137    fn error_display_file_not_found() {
138        let err = AftError::FileNotFound {
139            path: "/tmp/missing.rs".into(),
140        };
141        assert_eq!(err.to_string(), "file not found: /tmp/missing.rs");
142    }
143
144    #[test]
145    fn error_display_invalid_request() {
146        let err = AftError::InvalidRequest {
147            message: "missing field".into(),
148        };
149        assert_eq!(err.to_string(), "invalid request: missing field");
150    }
151
152    #[test]
153    fn error_display_checkpoint_not_found() {
154        let err = AftError::CheckpointNotFound {
155            name: "pre-refactor".into(),
156        };
157        assert_eq!(err.to_string(), "checkpoint not found: pre-refactor");
158        assert_eq!(err.code(), "checkpoint_not_found");
159    }
160
161    #[test]
162    fn error_display_no_undo_history() {
163        let err = AftError::NoUndoHistory {
164            path: "src/main.rs".into(),
165        };
166        assert_eq!(err.to_string(), "no undo history for: src/main.rs");
167        assert_eq!(err.code(), "no_undo_history");
168    }
169
170    #[test]
171    fn error_display_ambiguous_match() {
172        let err = AftError::AmbiguousMatch {
173            pattern: "TODO".into(),
174            count: 5,
175        };
176        assert_eq!(
177            err.to_string(),
178            "pattern 'TODO' matches 5 occurrences, expected exactly 1"
179        );
180        assert_eq!(err.code(), "ambiguous_match");
181    }
182
183    #[test]
184    fn error_to_json_has_code_and_message() {
185        let err = AftError::FileNotFound { path: "/x".into() };
186        let j = err.to_error_json();
187        assert_eq!(j["code"], "file_not_found");
188        assert!(j["message"].as_str().unwrap().contains("/x"));
189    }
190
191    // --- Config defaults ---
192
193    #[test]
194    fn config_default_values() {
195        let cfg = Config::default();
196        assert!(cfg.project_root.is_none());
197        assert_eq!(cfg.validation_depth, 1);
198        assert_eq!(cfg.checkpoint_ttl_hours, 24);
199        assert_eq!(cfg.max_symbol_depth, 10);
200        assert_eq!(cfg.formatter_timeout_secs, 10);
201        assert_eq!(cfg.type_checker_timeout_secs, 30);
202    }
203}
aft/lib.rs

aft/
lib.rs
