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#[cfg(test)]
mod prop_string_tests {
use super::*;
use crate::bash_parser::ast::*;
use proptest::prelude::*;
// Property: String length expansion preserves variable name
proptest! {
#[test]
fn prop_string_length_preserves_variable(
var_name in "[a-zA-Z_][a-zA-Z0-9_]{0,10}"
) {
let ast = BashAst {
statements: vec![BashStmt::Command {
name: "echo".to_string(),
args: vec![BashExpr::StringLength {
variable: var_name.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 # operator
prop_assert!(
purified.contains("#"),
"Purified output must contain # operator, got: {}",
purified
);
// PROPERTY: Must contain $ for parameter expansion
prop_assert!(
purified.contains("$"),
"Purified output must contain $ for expansion, got: {}",
purified
);
}
}
// Property: String length expansion is deterministic
proptest! {
#[test]
fn prop_string_length_is_deterministic(
var_name in "[a-zA-Z_][a-zA-Z0-9_]{0,10}"
) {
let ast = BashAst {
statements: vec![BashStmt::Assignment {
name: "length".to_string(),
index: None,
value: BashExpr::StringLength {
variable: var_name.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,
"String length expansion must be deterministic"
);
}
}
// Property: String length uses # not other parameter operators
proptest! {
#[test]
fn prop_string_length_uses_correct_operator(
var_name in "[a-zA-Z_][a-zA-Z0-9_]{0,10}"
) {
let ast = BashAst {
statements: vec![BashStmt::Command {
name: "test".to_string(),
args: vec![BashExpr::StringLength {
variable: var_name.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 :-, :=, :?, or :+ operators
prop_assert!(
!purified.contains(":-") && !purified.contains(":=") &&
!purified.contains(":?") && !purified.contains(":+"),
"Purified output must not contain :-, :=, :?, or :+ (should be #), got: {}",
purified
);
}
}
// Property: Remove suffix expansion preserves variable and pattern
proptest! {
#[test]
fn prop_remove_suffix_preserves_components(
var_name in "[a-zA-Z_][a-zA-Z0-9_]{0,10}",
pattern in "\\.[a-z]{2,4}"
) {
let ast = BashAst {
statements: vec![BashStmt::Command {
name: "echo".to_string(),
args: vec![BashExpr::RemoveSuffix {
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
prop_assert!(
purified.contains(&pattern) || purified.contains(pattern.trim_start_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 suffix expansion is deterministic
proptest! {
#[test]
fn prop_remove_suffix_is_deterministic(
var_name in "[a-zA-Z_][a-zA-Z0-9_]{0,10}",
pattern in "\\.[a-z]{2,4}"
) {
let ast = BashAst {
statements: vec![BashStmt::Assignment {
name: "result".to_string(),
index: None,
value: BashExpr::RemoveSuffix {
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 suffix expansion must be deterministic"
);
}
}
// Property: Remove suffix uses % not #, :-, :=, :?, or :+
proptest! {
#[test]
fn prop_remove_suffix_uses_correct_operator(
var_name in "[a-zA-Z_][a-zA-Z0-9_]{0,10}",
pattern in "\\.[a-z]{2,4}"
) {
let ast = BashAst {
statements: vec![BashStmt::Command {
name: "test".to_string(),
args: vec![BashExpr::RemoveSuffix {
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 prefix removal)
// Note: # is used for string length, not prefix removal
// We check it's not confused with other operators
prop_assert!(
!purified.contains(":-") && !purified.contains(":=") &&
!purified.contains(":?") && !purified.contains(":+"),
"Purified output must not contain :-, :=, :?, or :+ (should be %), got: {}",
purified
);
}
}
}