#[cfg_attr(coverage_nightly, coverage(off))]
#[cfg(test)]
mod property_tests {
use super::*;
use proptest::prelude::*;
proptest! {
#[test]
fn complexity_is_never_zero(code in ".*") {
let profile = QualityProfile::standard();
let generator = QualityCodeGenerator::new(profile);
let complexity = generator.estimate_complexity(&code);
prop_assert!(complexity >= 1, "Complexity must be at least 1");
}
#[test]
fn complexity_increases_with_control_flow(
base_count in 0usize..5,
if_count in 0usize..5,
match_count in 0usize..3,
for_count in 0usize..3,
while_count in 0usize..3
) {
let profile = QualityProfile::standard();
let generator = QualityCodeGenerator::new(profile);
let mut code = String::new();
for _ in 0..if_count { code.push_str("if x {} "); }
for _ in 0..match_count { code.push_str("match x {} "); }
for _ in 0..for_count { code.push_str("for x in {} "); }
for _ in 0..while_count { code.push_str("while x {} "); }
for _ in 0..base_count { code.push_str("let x = 1; "); }
let expected_min = 1 + if_count as u32 + match_count as u32
+ for_count as u32 + while_count as u32;
let complexity = generator.estimate_complexity(&code);
prop_assert!(
complexity >= expected_min,
"Complexity {} should be >= {} for code with {} ifs, {} matches, {} fors, {} whiles",
complexity, expected_min, if_count, match_count, for_count, while_count
);
}
#[test]
fn satd_count_matches_todo_occurrences(todo_count in 0usize..10) {
let profile = QualityProfile::standard();
let generator = QualityCodeGenerator::new(profile);
let mut code = String::from("fn foo() { ");
for i in 0..todo_count {
code.push_str(&format!("// TODO: item {}\n", i));
}
code.push_str("}");
let metrics = generator.calculate_metrics(&code, "").unwrap();
prop_assert_eq!(
metrics.satd_count as usize,
todo_count,
"SATD count should match TODO occurrences"
);
}
}
proptest! {
#[test]
fn quality_score_is_bounded(
complexity in 1u32..50,
coverage in 0u32..=100,
tdg in 0u32..20,
satd_count in 0u32..10
) {
use crate::qdd::core::QualityMetrics;
let metrics = QualityMetrics {
complexity,
cognitive_complexity: complexity,
coverage,
tdg,
satd_count,
dead_code_percentage: 0,
has_doctests: false,
has_property_tests: false,
};
let score = metrics.calculate_score();
prop_assert!(score >= 0.0, "Score must be >= 0: {}", score);
prop_assert!(score <= 100.0, "Score must be <= 100: {}", score);
}
#[test]
fn higher_coverage_gives_higher_score(
complexity in 1u32..10,
coverage1 in 0u32..50,
coverage2 in 50u32..=100
) {
use crate::qdd::core::QualityMetrics;
let metrics1 = QualityMetrics {
complexity,
cognitive_complexity: complexity,
coverage: coverage1,
tdg: 5,
satd_count: 0,
dead_code_percentage: 0,
has_doctests: false,
has_property_tests: false,
};
let metrics2 = QualityMetrics {
complexity,
cognitive_complexity: complexity,
coverage: coverage2,
tdg: 5,
satd_count: 0,
dead_code_percentage: 0,
has_doctests: false,
has_property_tests: false,
};
let score1 = metrics1.calculate_score();
let score2 = metrics2.calculate_score();
prop_assert!(
score2 >= score1,
"Higher coverage ({}) should give higher or equal score ({} >= {})",
coverage2, score2, score1
);
}
#[test]
fn lower_complexity_gives_higher_score(
complexity1 in 15u32..25,
complexity2 in 1u32..10
) {
use crate::qdd::core::QualityMetrics;
let metrics1 = QualityMetrics {
complexity: complexity1,
cognitive_complexity: complexity1,
coverage: 80,
tdg: 5,
satd_count: 0,
dead_code_percentage: 0,
has_doctests: false,
has_property_tests: false,
};
let metrics2 = QualityMetrics {
complexity: complexity2,
cognitive_complexity: complexity2,
coverage: 80,
tdg: 5,
satd_count: 0,
dead_code_percentage: 0,
has_doctests: false,
has_property_tests: false,
};
let score1 = metrics1.calculate_score();
let score2 = metrics2.calculate_score();
prop_assert!(
score2 >= score1,
"Lower complexity ({}) should give higher or equal score ({} >= {})",
complexity2, score2, score1
);
}
}
proptest! {
#[test]
fn enhance_with_features_preserves_base_code(
base in "[a-zA-Z0-9 ]{1,50}",
features_count in 0usize..5
) {
let profile = QualityProfile::standard();
let generator = QualityCodeGenerator::new(profile);
let features: Vec<String> = (0..features_count)
.map(|i| format!("feature_{}", i))
.collect();
let enhanced = generator.enhance_with_features(&base, &features).unwrap();
prop_assert!(
enhanced.contains(&base),
"Enhanced code should preserve base code"
);
}
}
}