import os
import re
import sys
import argparse
from pathlib import Path
from typing import List, Dict, Tuple, Optional
from dataclasses import dataclass
import json
@dataclass
class TestUpgradeCandidate:
file_path: Path
module_type: str
current_test: str
suggested_upgrade: str
priority: int
class PropertyTestUpgrader:
def __init__(self, base_path: str = "server/src"):
self.base_path = Path(base_path)
self.placeholder_pattern = re.compile(r'prop_assert!\(true\)')
self.module_patterns = self.load_module_patterns()
def load_module_patterns(self) -> Dict[str, Dict]:
return {
"parser": {
"keywords": ["parse", "lexer", "tokenize", "syntax"],
"template": self.get_parser_template(),
"priority": 1
},
"analyzer": {
"keywords": ["analyze", "detect", "calculate", "measure"],
"template": self.get_analyzer_template(),
"priority": 1
},
"serializer": {
"keywords": ["serialize", "deserialize", "encode", "decode", "json", "toml"],
"template": self.get_serializer_template(),
"priority": 2
},
"validator": {
"keywords": ["validate", "check", "verify", "ensure"],
"template": self.get_validator_template(),
"priority": 2
},
"transformer": {
"keywords": ["transform", "convert", "refactor", "modify"],
"template": self.get_transformer_template(),
"priority": 3
},
"builder": {
"keywords": ["build", "create", "construct", "generate"],
"template": self.get_builder_template(),
"priority": 3
},
"model": {
"keywords": ["model", "struct", "enum", "type"],
"template": self.get_model_template(),
"priority": 4
},
"service": {
"keywords": ["service", "handler", "manager", "controller"],
"template": self.get_service_template(),
"priority": 4
},
"utility": {
"keywords": ["util", "helper", "common", "shared"],
"template": self.get_utility_template(),
"priority": 5
}
}
def find_placeholder_tests(self) -> List[Path]:
placeholder_files = []
for rust_file in self.base_path.rglob("*.rs"):
if rust_file.is_file():
content = rust_file.read_text()
if self.placeholder_pattern.search(content):
placeholder_files.append(rust_file)
return placeholder_files
def identify_module_type(self, file_path: Path) -> str:
file_name = file_path.stem.lower()
content = file_path.read_text().lower()[:1000]
best_match = "utility" best_score = 0
for module_type, pattern_info in self.module_patterns.items():
score = 0
for keyword in pattern_info["keywords"]:
if keyword in file_name:
score += 2 if keyword in content:
score += 1
if score > best_score:
best_score = score
best_match = module_type
return best_match
def generate_upgrade_suggestion(self, file_path: Path) -> TestUpgradeCandidate:
module_type = self.identify_module_type(file_path)
pattern_info = self.module_patterns[module_type]
content = file_path.read_text()
current_test = self.extract_current_test(content)
suggested_upgrade = pattern_info["template"].format(
module_name=file_path.stem
)
return TestUpgradeCandidate(
file_path=file_path,
module_type=module_type,
current_test=current_test,
suggested_upgrade=suggested_upgrade,
priority=pattern_info["priority"]
)
def extract_current_test(self, content: str) -> str:
match = re.search(
r'(proptest!\s*\{[^}]*prop_assert!\(true\)[^}]*\})',
content,
re.DOTALL
)
if match:
return match.group(1)
return "// No property test found"
def apply_upgrade(self, candidate: TestUpgradeCandidate, dry_run: bool = True) -> bool:
if dry_run:
print(f"Would upgrade: {candidate.file_path}")
return True
try:
content = candidate.file_path.read_text()
updated_content = content.replace(
candidate.current_test,
candidate.suggested_upgrade
)
candidate.file_path.write_text(updated_content)
return True
except Exception as e:
print(f"Error upgrading {candidate.file_path}: {e}")
return False
def get_parser_template(self) -> str:
return '''proptest! {{
#[test]
fn parse_valid_input_succeeds(
input in valid_{module_name}_input()
) {{
let result = parse_{module_name}(&input);
prop_assert!(result.is_ok());
}}
#[test]
fn parse_format_roundtrip(
input in valid_{module_name}_input()
) {{
let parsed = parse_{module_name}(&input).unwrap();
let formatted = format_{module_name}(&parsed);
let reparsed = parse_{module_name}(&formatted).unwrap();
prop_assert_eq!(parsed, reparsed);
}}
#[test]
fn parser_never_panics(input in ".*") {{
// Parser should handle any input without panicking
let _ = parse_{module_name}_safe(&input);
}}
}}
fn valid_{module_name}_input() -> impl Strategy<Value = String> {{
"[a-zA-Z][a-zA-Z0-9_]*"
}}'''
def get_analyzer_template(self) -> str:
return '''proptest! {{
#[test]
fn analysis_deterministic(
input in arbitrary_input()
) {{
let result1 = analyze(&input);
let result2 = analyze(&input);
prop_assert_eq!(result1, result2);
}}
#[test]
fn analysis_bounds_check(
input in arbitrary_input()
) {{
let result = analyze(&input);
prop_assert!(result.score >= 0.0);
prop_assert!(result.score <= 100.0);
}}
#[test]
fn analysis_never_panics(input in ".*") {{
let _ = analyze_safe(&input);
}}
}}'''
def get_serializer_template(self) -> str:
return '''proptest! {{
#[test]
fn serialize_deserialize_roundtrip(
value in arbitrary_{module_name}()
) {{
let serialized = serde_json::to_string(&value)?;
let deserialized = serde_json::from_str(&serialized)?;
prop_assert_eq!(value, deserialized);
}}
#[test]
fn serialization_never_panics(
value in arbitrary_{module_name}()
) {{
let _ = serde_json::to_string(&value);
}}
}}'''
def get_validator_template(self) -> str:
return '''proptest! {{
#[test]
fn valid_input_passes_validation(
input in valid_{module_name}_input()
) {{
prop_assert!(validate_{module_name}(&input).is_ok());
}}
#[test]
fn invalid_input_fails_validation(
input in invalid_{module_name}_input()
) {{
prop_assert!(validate_{module_name}(&input).is_err());
}}
#[test]
fn validator_never_panics(input in ".*") {{
let _ = validate_{module_name}(&input);
}}
}}'''
def get_transformer_template(self) -> str:
return '''proptest! {{
#[test]
fn transform_preserves_invariants(
input in arbitrary_input()
) {{
let transformed = transform(&input);
prop_assert!(verify_invariants(&input, &transformed));
}}
#[test]
fn transform_idempotent(
input in arbitrary_input()
) {{
let once = transform(&input);
let twice = transform(&once);
prop_assert_eq!(once, twice);
}}
}}'''
def get_builder_template(self) -> str:
return '''proptest! {{
#[test]
fn builder_creates_valid_objects(
params in arbitrary_build_params()
) {{
let result = Builder::new()
.with_params(params)
.build();
prop_assert!(result.is_ok());
prop_assert!(result.unwrap().is_valid());
}}
#[test]
fn builder_defaults_are_valid() {{
let result = Builder::default().build();
prop_assert!(result.is_ok());
}}
}}'''
def get_model_template(self) -> str:
return '''proptest! {{
#[test]
fn model_equality_is_reflexive(
model in arbitrary_{module_name}()
) {{
prop_assert_eq!(&model, &model);
}}
#[test]
fn model_clone_equals_original(
model in arbitrary_{module_name}()
) {{
let cloned = model.clone();
prop_assert_eq!(model, cloned);
}}
#[test]
fn model_hash_deterministic(
model in arbitrary_{module_name}()
) {{
use std::collections::hash_map::DefaultHasher;
use std::hash::{{Hash, Hasher}};
let mut hasher1 = DefaultHasher::new();
model.hash(&mut hasher1);
let hash1 = hasher1.finish();
let mut hasher2 = DefaultHasher::new();
model.hash(&mut hasher2);
let hash2 = hasher2.finish();
prop_assert_eq!(hash1, hash2);
}}
}}'''
def get_service_template(self) -> str:
return '''proptest! {{
#[test]
fn service_handles_concurrent_requests(
requests in prop::collection::vec(arbitrary_request(), 1..10)
) {{
let service = Service::new();
let results: Vec<_> = requests.iter()
.map(|req| service.handle(req))
.collect();
for result in results {{
prop_assert!(result.is_ok());
}}
}}
#[test]
fn service_state_consistent(
operations in prop::collection::vec(arbitrary_operation(), 1..20)
) {{
let mut service = Service::new();
for op in operations {{
service.execute(op);
prop_assert!(service.verify_state_consistency());
}}
}}
}}'''
def get_utility_template(self) -> str:
return '''proptest! {{
#[test]
fn utility_function_deterministic(
input in arbitrary_input()
) {{
let result1 = utility_function(&input);
let result2 = utility_function(&input);
prop_assert_eq!(result1, result2);
}}
#[test]
fn utility_handles_edge_cases(
size in 0usize..10000
) {{
let input = generate_input(size);
let result = utility_function(&input);
prop_assert!(result.is_valid());
}}
}}'''
def generate_report(self, candidates: List[TestUpgradeCandidate], format: str = "terminal"):
if format == "json":
self.generate_json_report(candidates)
elif format == "markdown":
self.generate_markdown_report(candidates)
else:
self.generate_terminal_report(candidates)
def generate_terminal_report(self, candidates: List[TestUpgradeCandidate]):
print("\n" + "="*60)
print("PROPERTY TEST UPGRADE CANDIDATES")
print("="*60)
print(f"\nFound {len(candidates)} files with placeholder tests\n")
by_priority = {}
for candidate in candidates:
priority = candidate.priority
if priority not in by_priority:
by_priority[priority] = []
by_priority[priority].append(candidate)
for priority in sorted(by_priority.keys()):
priority_candidates = by_priority[priority]
print(f"\n{'⭐' * (6 - priority)} Priority {priority} ({len(priority_candidates)} files)")
print("-" * 40)
for candidate in priority_candidates[:5]: rel_path = candidate.file_path.relative_to(self.base_path)
print(f" 📁 {rel_path}")
print(f" Type: {candidate.module_type}")
print(f" Upgrade: Add {candidate.module_type}-specific property tests")
if len(priority_candidates) > 5:
print(f" ... and {len(priority_candidates) - 5} more")
def generate_markdown_report(self, candidates: List[TestUpgradeCandidate]):
print("# Property Test Upgrade Report\n")
print(f"**Total Files**: {len(candidates)}\n")
print(f"**Date**: {__import__('datetime').datetime.now().isoformat()}\n")
by_type = {}
for candidate in candidates:
module_type = candidate.module_type
if module_type not in by_type:
by_type[module_type] = 0
by_type[module_type] += 1
print("## Statistics by Module Type\n")
print("| Module Type | Count | Priority |")
print("|------------|-------|----------|")
for module_type in sorted(by_type.keys()):
priority = self.module_patterns[module_type]["priority"]
print(f"| {module_type} | {by_type[module_type]} | {priority} |")
print("\n## Top Priority Upgrades\n")
sorted_candidates = sorted(candidates, key=lambda c: (c.priority, str(c.file_path)))
for candidate in sorted_candidates[:20]:
rel_path = candidate.file_path.relative_to(self.base_path)
print(f"- [ ] `{rel_path}` ({candidate.module_type})")
def generate_json_report(self, candidates: List[TestUpgradeCandidate]):
report = {
"total_files": len(candidates),
"timestamp": __import__('datetime').datetime.now().isoformat(),
"candidates": []
}
for candidate in candidates:
report["candidates"].append({
"file": str(candidate.file_path.relative_to(self.base_path)),
"module_type": candidate.module_type,
"priority": candidate.priority
})
print(json.dumps(report, indent=2))
def main():
parser = argparse.ArgumentParser(
description="Upgrade placeholder property tests to meaningful ones"
)
parser.add_argument(
"--path",
default="server/src",
help="Base path to search for Rust files"
)
parser.add_argument(
"--format",
choices=["terminal", "markdown", "json"],
default="terminal",
help="Output format for the report"
)
parser.add_argument(
"--apply",
action="store_true",
help="Actually apply the upgrades (default is dry-run)"
)
parser.add_argument(
"--limit",
type=int,
default=0,
help="Limit number of files to upgrade (0 = no limit)"
)
parser.add_argument(
"--priority",
type=int,
choices=[1, 2, 3, 4, 5],
help="Only upgrade files with this priority or higher"
)
args = parser.parse_args()
upgrader = PropertyTestUpgrader(args.path)
placeholder_files = upgrader.find_placeholder_tests()
if not placeholder_files:
print("No placeholder tests found!")
return
candidates = []
for file_path in placeholder_files:
candidate = upgrader.generate_upgrade_suggestion(file_path)
if args.priority and candidate.priority > args.priority:
continue
candidates.append(candidate)
candidates.sort(key=lambda c: (c.priority, str(c.file_path)))
if args.limit > 0:
candidates = candidates[:args.limit]
upgrader.generate_report(candidates, args.format)
if args.apply:
print(f"\nApplying upgrades to {len(candidates)} files...")
success_count = 0
for candidate in candidates:
if upgrader.apply_upgrade(candidate, dry_run=False):
success_count += 1
print(f"✅ Upgraded: {candidate.file_path}")
else:
print(f"❌ Failed: {candidate.file_path}")
print(f"\nSuccessfully upgraded {success_count}/{len(candidates)} files")
if __name__ == "__main__":
main()