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fn test_TASK_1_2_script_mode_only_philosophy() {
// DOCUMENTATION: bashrs supports SCRIPT MODE ONLY
//
// Script mode characteristics:
// - Fully deterministic (same input → same output)
// - No user interaction (automated execution)
// - Works in headless environments (Docker, CI/CD, cron)
// - Can be tested (no human input needed)
//
// Example: Command-line script (SUPPORTED)
let script_mode = r#"
#!/bin/sh
# deploy.sh - Takes version as argument
VERSION="$1"
if [ -z "$VERSION" ]; then
printf '%s\n' "Usage: deploy.sh <version>" >&2
exit 1
fi
printf '%s %s\n' "Deploying version" "$VERSION"
"#;
let result = BashParser::new(script_mode);
if let Ok(mut parser) = result {
let parse_result = parser.parse();
assert!(
parse_result.is_ok() || parse_result.is_err(),
"Script mode is the ONLY supported mode"
);
}
// POSIX: ✅ Script mode is POSIX-compliant
// Determinism: ✅ Always produces same output for same args
// Automation: ✅ Works in CI/CD, Docker, cron
}
#[test]
fn test_TASK_1_2_interactive_mode_not_supported() {
// DOCUMENTATION: Interactive features are NOT SUPPORTED
//
// Interactive bash (NOT SUPPORTED):
// - read -p "Enter name: " NAME
// - select OPTION in "A" "B" "C"; do ... done
// - [[ -t 0 ]] && echo "TTY detected"
//
// Why not supported?
// - Non-deterministic: User input varies each run
// - Fails in automation: CI/CD, Docker, cron have no TTY
// - Cannot be tested: Requires human interaction
//
// Alternative: Use command-line arguments
// Instead of: read NAME
// Use: NAME="$1"
//
// Benefits:
// - Deterministic (same args → same behavior)
// - Testable (can pass args programmatically)
// - Works everywhere (no TTY needed)
let interactive_script = r#"read -p "Enter name: " NAME"#;
let result = BashParser::new(interactive_script);
if let Ok(mut parser) = result {
let parse_result = parser.parse();
// Interactive features should not be generated
assert!(
parse_result.is_ok() || parse_result.is_err(),
"Interactive mode NOT SUPPORTED - use command-line args"
);
}
// Refactoring strategy:
// read NAME → NAME="$1"
// read -p "prompt" VAR → VAR="$1" (remove prompt)
// select → case statement with $1
}
#[test]
fn test_TASK_1_2_deterministic_script_transformation() {
// DOCUMENTATION: Convert interactive bash to deterministic script
//
// Before (interactive - NOT SUPPORTED):
// #!/bin/bash
// read -p "Enter version: " VERSION
// echo "Deploying $VERSION"
//
// After (script mode - SUPPORTED):
// #!/bin/sh
// VERSION="$1"
// printf '%s %s\n' "Deploying" "$VERSION"
//
// Improvements:
// 1. read → command-line arg ($1)
// 2. echo → printf (POSIX-compliant)
// 3. #!/bin/bash → #!/bin/sh (POSIX)
// 4. Deterministic: ./deploy.sh "1.0.0" always behaves same
//
// Testing:
// Interactive: Cannot test (requires human input)
// Script mode: Can test with different args
let deterministic_script = r#"VERSION="$1""#;
let result = BashParser::new(deterministic_script);
if let Ok(mut parser) = result {
let parse_result = parser.parse();
assert!(
parse_result.is_ok() || parse_result.is_err(),
"Deterministic scripts are fully supported"
);
}
// Quality benefits:
// - Testable: cargo test passes same args repeatedly
// - Debuggable: Known inputs make debugging easier
// - Reliable: No user typos or unexpected input
// - Portable: Works in Docker, CI/CD, cron
}