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#[cfg(test)]
mod prop_prefix_tests {
use super::*;
use crate::bash_parser::ast::*;
use proptest::prelude::*;
// Property: Remove prefix expansion preserves variable and pattern
proptest! {
#[test]
fn prop_remove_prefix_preserves_components(
var_name in "[a-zA-Z_][a-zA-Z0-9_]{0,10}",
pattern in "/[a-z]{3,5}/"
) {
let ast = BashAst {
statements: vec![BashStmt::Command {
name: "echo".to_string(),
args: vec![BashExpr::RemovePrefix {
variable: var_name.clone(),
pattern: Box::new(BashExpr::Literal(pattern.clone())),
}],
redirects: vec![],
span: Span::dummy(),
}],
metadata: AstMetadata {
source_file: None,
line_count: 1,
parse_time_ms: 0,
},
};
let purified = generators::generate_purified_bash(&ast);
// PROPERTY: Must contain the variable name
prop_assert!(
purified.contains(&var_name),
"Purified output must contain variable name '{}', got: {}",
var_name,
purified
);
// PROPERTY: Must contain the pattern (or part of it)
prop_assert!(
purified.contains(&pattern) || purified.contains(pattern.trim_matches('/')),
"Purified output must contain pattern '{}', got: {}",
pattern,
purified
);
// PROPERTY: Must contain # operator
prop_assert!(
purified.contains("#"),
"Purified output must contain # operator, got: {}",
purified
);
}
}
// Property: Remove prefix expansion is deterministic
proptest! {
#[test]
fn prop_remove_prefix_is_deterministic(
var_name in "[a-zA-Z_][a-zA-Z0-9_]{0,10}",
pattern in "/[a-z]{3,5}/"
) {
let ast = BashAst {
statements: vec![BashStmt::Assignment {
name: "result".to_string(),
index: None,
value: BashExpr::RemovePrefix {
variable: var_name.clone(),
pattern: Box::new(BashExpr::Literal(pattern.clone())),
},
exported: false,
span: Span::dummy(),
}],
metadata: AstMetadata {
source_file: None,
line_count: 1,
parse_time_ms: 0,
},
};
// Generate twice
let purified1 = generators::generate_purified_bash(&ast);
let purified2 = generators::generate_purified_bash(&ast);
// PROPERTY: Determinism - byte-identical output
prop_assert_eq!(
purified1,
purified2,
"Remove prefix expansion must be deterministic"
);
}
}
// Property: Remove prefix uses # not %, :-, :=, :?, or :+
proptest! {
#[test]
fn prop_remove_prefix_uses_correct_operator(
var_name in "[a-zA-Z_][a-zA-Z0-9_]{0,10}",
pattern in "/[a-z]{3,5}/"
) {
let ast = BashAst {
statements: vec![BashStmt::Command {
name: "test".to_string(),
args: vec![BashExpr::RemovePrefix {
variable: var_name.clone(),
pattern: Box::new(BashExpr::Literal(pattern.clone())),
}],
redirects: vec![],
span: Span::dummy(),
}],
metadata: AstMetadata {
source_file: None,
line_count: 1,
parse_time_ms: 0,
},
};
let purified = generators::generate_purified_bash(&ast);
// PROPERTY: Must use # operator
prop_assert!(
purified.contains("#"),
"Purified output must contain # operator, got: {}",
purified
);
// PROPERTY: Must NOT use % (that's for suffix removal)
// Note: We check it's not confused with other operators
// % is for suffix removal, # is for prefix removal
prop_assert!(
!purified.contains(":-") && !purified.contains(":=") &&
!purified.contains(":?") && !purified.contains(":+"),
"Purified output must not contain :-, :=, :?, or :+ (should be #), got: {}",
purified
);
}
}
// Property: Remove longest prefix expansion preserves variable and pattern
proptest! {
#[test]
fn prop_remove_longest_prefix_preserves_components(
var_name in "[a-zA-Z_][a-zA-Z0-9_]{0,10}",
pattern in "\\*/|\\*[a-z]{1,3}/"
) {
let ast = BashAst {
statements: vec![BashStmt::Command {
name: "echo".to_string(),
args: vec![BashExpr::RemoveLongestPrefix {
variable: var_name.clone(),
pattern: Box::new(BashExpr::Literal(pattern.clone())),
}],
redirects: vec![],
span: Span::dummy(),
}],
metadata: AstMetadata {
source_file: None,
line_count: 1,
parse_time_ms: 0,
},
};
let purified = generators::generate_purified_bash(&ast);
// PROPERTY: Must contain the variable name
prop_assert!(
purified.contains(&var_name),
"Purified output must contain variable name '{}', got: {}",
var_name,
purified
);
// PROPERTY: Must contain the pattern (or part of it)
prop_assert!(
purified.contains(&pattern) || purified.contains(pattern.trim_matches('/')),
"Purified output must contain pattern '{}', got: {}",
pattern,
purified
);
// PROPERTY: Must contain ## operator (greedy)
prop_assert!(
purified.contains("##"),
"Purified output must contain ## operator, got: {}",
purified
);
}
}
// Property: Remove longest prefix expansion is deterministic
proptest! {
#[test]
fn prop_remove_longest_prefix_is_deterministic(
var_name in "[a-zA-Z_][a-zA-Z0-9_]{0,10}",
pattern in "\\*/|\\*[a-z]{1,3}/"
) {
let ast = BashAst {
statements: vec![BashStmt::Assignment {
name: "result".to_string(),
index: None,
value: BashExpr::RemoveLongestPrefix {
variable: var_name.clone(),
pattern: Box::new(BashExpr::Literal(pattern.clone())),
},
exported: false,
span: Span::dummy(),
}],
metadata: AstMetadata {
source_file: None,
line_count: 1,
parse_time_ms: 0,
},
};
// Generate twice
let purified1 = generators::generate_purified_bash(&ast);
let purified2 = generators::generate_purified_bash(&ast);
// PROPERTY: Determinism - byte-identical output
prop_assert_eq!(
purified1,
purified2,
"Remove longest prefix expansion must be deterministic"
);
}
}
// Property: Remove longest prefix uses ## not #, %, :-, :=, :?, or :+
proptest! {
#[test]
fn prop_remove_longest_prefix_uses_correct_operator(
var_name in "[a-zA-Z_][a-zA-Z0-9_]{0,10}",
pattern in "\\*/|\\*[a-z]{1,3}/"
) {
let ast = BashAst {
statements: vec![BashStmt::Command {
name: "test".to_string(),
args: vec![BashExpr::RemoveLongestPrefix {
variable: var_name.clone(),
pattern: Box::new(BashExpr::Literal(pattern.clone())),
}],
redirects: vec![],
span: Span::dummy(),
}],
metadata: AstMetadata {
source_file: None,
line_count: 1,
parse_time_ms: 0,
},
};
let purified = generators::generate_purified_bash(&ast);
// PROPERTY: Must use ## operator (greedy prefix removal)
prop_assert!(
purified.contains("##"),
"Purified output must contain ## operator, got: {}",
purified
);
// PROPERTY: Must NOT use % (that's for suffix removal)
// Must NOT use :-, :=, :?, :+ (parameter expansion operators)
prop_assert!(
!purified.contains(":-") && !purified.contains(":=") &&
!purified.contains(":?") && !purified.contains(":+"),
"Purified output must not contain :-, :=, :?, or :+ (should be ##), got: {}",
purified
);
}
}
// Property: Remove longest suffix expansion preserves variable and pattern
proptest! {
#[test]
fn prop_remove_longest_suffix_preserves_components(
var_name in "[a-zA-Z_][a-zA-Z0-9_]{0,10}",
pattern in "\\.\\*|\\*[a-z]{1,3}"
) {
let ast = BashAst {
statements: vec![BashStmt::Command {
name: "echo".to_string(),
args: vec![BashExpr::RemoveLongestSuffix {
variable: var_name.clone(),
pattern: Box::new(BashExpr::Literal(pattern.clone())),
}],
redirects: vec![],
span: Span::dummy(),
}],
metadata: AstMetadata {
source_file: None,
line_count: 1,
parse_time_ms: 0,
},
};
let purified = generators::generate_purified_bash(&ast);
// PROPERTY: Must contain the variable name
prop_assert!(
purified.contains(&var_name),
"Purified output must contain variable name '{}', got: {}",
var_name,
purified
);
// PROPERTY: Must contain the pattern (or part of it)
prop_assert!(
purified.contains(&pattern) || purified.contains(pattern.trim_start_matches('.')),
"Purified output must contain pattern '{}', got: {}",
pattern,
purified
);
// PROPERTY: Must contain %% operator (greedy)
prop_assert!(
purified.contains("%%"),
"Purified output must contain %% operator, got: {}",
purified
);
}
}
// Property: Remove longest suffix expansion is deterministic
proptest! {
#[test]
fn prop_remove_longest_suffix_is_deterministic(
var_name in "[a-zA-Z_][a-zA-Z0-9_]{0,10}",
pattern in "\\.\\*|\\*[a-z]{1,3}"
) {
let ast = BashAst {
statements: vec![BashStmt::Assignment {
name: "result".to_string(),
index: None,
value: BashExpr::RemoveLongestSuffix {
variable: var_name.clone(),
pattern: Box::new(BashExpr::Literal(pattern.clone())),
},
exported: false,
span: Span::dummy(),
}],
metadata: AstMetadata {
source_file: None,
line_count: 1,
parse_time_ms: 0,
},
};
// Generate twice
let purified1 = generators::generate_purified_bash(&ast);
let purified2 = generators::generate_purified_bash(&ast);
// PROPERTY: Determinism - byte-identical output
prop_assert_eq!(
purified1,
purified2,
"Remove longest suffix expansion must be deterministic"
);
}
}
// Property: Remove longest suffix uses %% not %, ##, :-, :=, :?, or :+
proptest! {
#[test]
fn prop_remove_longest_suffix_uses_correct_operator(
var_name in "[a-zA-Z_][a-zA-Z0-9_]{0,10}",
pattern in "\\.\\*|\\*[a-z]{1,3}"
) {
let ast = BashAst {
statements: vec![BashStmt::Command {
name: "test".to_string(),
args: vec![BashExpr::RemoveLongestSuffix {
variable: var_name.clone(),
pattern: Box::new(BashExpr::Literal(pattern.clone())),
}],
redirects: vec![],
span: Span::dummy(),
}],
metadata: AstMetadata {
source_file: None,
line_count: 1,
parse_time_ms: 0,
},
};
let purified = generators::generate_purified_bash(&ast);
// PROPERTY: Must use %% operator (greedy suffix removal)
prop_assert!(
purified.contains("%%"),
"Purified output must contain %% operator, got: {}",
purified
);
// PROPERTY: Must NOT use ## (that's for prefix removal)
// Must NOT use :-, :=, :?, :+ (parameter expansion operators)
prop_assert!(
!purified.contains(":-") && !purified.contains(":=") &&
!purified.contains(":?") && !purified.contains(":+"),
"Purified output must not contain :-, :=, :?, or :+ (should be %%), got: {}",
purified
);
}
}
}