pmat 3.11.0

PMAT - Zero-config AI context generation and code quality toolkit (CLI, MCP, HTTP)
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//! Integration tests for .gitignore respect in file discovery

use crate::services::file_discovery::{FileDiscoveryConfig, ProjectFileDiscovery};
use std::fs;
use tempfile::TempDir;

#[test]
fn test_file_discovery_respects_gitignore() {
    let temp_dir = TempDir::new().unwrap();
    let root = temp_dir.path();

    // Create source files
    fs::write(root.join("main.rs"), "fn main() {}").unwrap();
    fs::write(root.join("lib.rs"), "pub fn lib() {}").unwrap();

    // Create build artifacts
    fs::create_dir(root.join("target")).unwrap();
    fs::create_dir(root.join("target/debug")).unwrap();
    fs::write(root.join("target/debug/main"), "binary").unwrap();

    // Create node_modules
    fs::create_dir(root.join("node_modules")).unwrap();
    fs::write(root.join("node_modules/package.json"), "{}").unwrap();

    // Create .gitignore
    fs::write(root.join(".gitignore"), "target/\nnode_modules/\n*.log\n").unwrap();

    // Create a log file that should be ignored
    fs::write(root.join("debug.log"), "log data").unwrap();

    // Configure discovery with gitignore respect
    let config = FileDiscoveryConfig {
        respect_gitignore: true,
        ..Default::default()
    };

    let discovery = ProjectFileDiscovery::new(root.to_path_buf()).with_config(config);
    let files = discovery.discover_files().unwrap();

    // Should only find source files
    assert_eq!(files.len(), 2);
    assert!(files.iter().any(|f| f.ends_with("main.rs")));
    assert!(files.iter().any(|f| f.ends_with("lib.rs")));

    // Should not find ignored files
    assert!(!files.iter().any(|f| f.to_string_lossy().contains("target")));
    assert!(!files
        .iter()
        .any(|f| f.to_string_lossy().contains("node_modules")));
    assert!(!files.iter().any(|f| f.ends_with("debug.log")));
}

#[test]
fn test_file_discovery_without_gitignore_respect() {
    let temp_dir = TempDir::new().unwrap();
    let root = temp_dir.path();

    // Create source files
    fs::write(root.join("main.rs"), "fn main() {}").unwrap();

    // Create build artifacts
    fs::create_dir(root.join("target")).unwrap();
    fs::write(root.join("target/main"), "binary").unwrap();

    // Create .gitignore
    fs::write(root.join(".gitignore"), "target/\n").unwrap();

    // Configure discovery WITHOUT gitignore respect
    let config = FileDiscoveryConfig {
        respect_gitignore: false,
        ..Default::default()
    };

    let discovery = ProjectFileDiscovery::new(root.to_path_buf()).with_config(config);
    let files = discovery.discover_files().unwrap();

    // Should find all files when gitignore is not respected
    // But still should filter build artifacts through is_build_artifact
    assert!(files.iter().any(|f| f.ends_with("main.rs")));
    // Build artifacts are still filtered by is_build_artifact function
    assert!(!files.iter().any(|f| f.to_string_lossy().contains("target")));
}

#[test]
fn test_c_file_discovery_respects_gitignore() {
    let temp_dir = TempDir::new().unwrap();
    let root = temp_dir.path();

    // Create C source files
    fs::write(root.join("main.c"), "int main() { return 0; }").unwrap();
    fs::write(root.join("utils.c"), "void util() {}").unwrap();
    fs::write(root.join("utils.h"), "#ifndef UTILS_H").unwrap();

    // Create build directory with artifacts
    fs::create_dir(root.join("build")).unwrap();
    fs::write(root.join("build/main.o"), "object file").unwrap();
    fs::write(root.join("build/utils.o"), "object file").unwrap();
    fs::write(root.join("build/a.out"), "executable").unwrap();

    // Create CMake artifacts
    fs::create_dir(root.join("CMakeFiles")).unwrap();
    fs::write(root.join("CMakeCache.txt"), "cmake cache").unwrap();

    // Create .gitignore
    fs::write(
        root.join(".gitignore"),
        "build/\n*.o\nCMakeFiles/\nCMakeCache.txt\n",
    )
    .unwrap();

    let config = FileDiscoveryConfig {
        respect_gitignore: true,
        ..Default::default()
    };

    let discovery = ProjectFileDiscovery::new(root.to_path_buf()).with_config(config);
    let files = discovery.discover_files().unwrap();

    // Should find C source files
    assert!(files.iter().any(|f| f.ends_with("main.c")));
    assert!(files.iter().any(|f| f.ends_with("utils.c")));
    assert!(files.iter().any(|f| f.ends_with("utils.h")));

    // Should not find build artifacts
    assert!(!files.iter().any(|f| f.ends_with(".o")));
    assert!(!files.iter().any(|f| f.ends_with("a.out")));
    assert!(!files
        .iter()
        .any(|f| f.to_string_lossy().contains("CMakeFiles")));
    assert!(!files.iter().any(|f| f.ends_with("CMakeCache.txt")));
}

#[test]
fn test_custom_paimlignore_file() {
    let temp_dir = TempDir::new().unwrap();
    let root = temp_dir.path();

    // Create source files
    fs::write(root.join("main.rs"), "fn main() {}").unwrap();
    fs::write(root.join("test.rs"), "fn test() {}").unwrap();

    // Create generated files
    fs::write(root.join("generated.rs"), "// Generated file").unwrap();

    // Create .paimlignore (custom ignore file)
    fs::write(root.join(".paimlignore"), "generated.rs\ntest.rs\n").unwrap();

    let config = FileDiscoveryConfig {
        respect_gitignore: true,
        ..Default::default()
    };

    let discovery = ProjectFileDiscovery::new(root.to_path_buf()).with_config(config);
    let files = discovery.discover_files().unwrap();

    // Should only find main.rs
    assert_eq!(files.len(), 1);
    assert!(files.iter().any(|f| f.ends_with("main.rs")));
    assert!(!files.iter().any(|f| f.ends_with("generated.rs")));
    assert!(!files.iter().any(|f| f.ends_with("test.rs")));
}

/// RED Test (Issue from ruchy): .pmatignore should be respected
/// Users expect .pmatignore because the tool is called "pmat"
#[test]
fn test_pmatignore_file_support() {
    let temp_dir = TempDir::new().unwrap();
    let root = temp_dir.path();

    // Create source files
    fs::write(root.join("main.rs"), "fn main() {}").unwrap();
    fs::write(root.join("lib.rs"), "pub fn lib() {}").unwrap();

    // Create test directory that should be excluded
    fs::create_dir(root.join("tests_disabled")).unwrap();
    fs::write(
        root.join("tests_disabled/validate.rs"),
        "#[test] fn test() {}",
    )
    .unwrap();

    // Create .pmatignore (UX improvement - users expect this name)
    fs::write(
        root.join(".pmatignore"),
        "tests_disabled/\ntests_disabled/**\n",
    )
    .unwrap();

    let config = FileDiscoveryConfig {
        respect_gitignore: true,
        ..Default::default()
    };

    let discovery = ProjectFileDiscovery::new(root.to_path_buf()).with_config(config);
    let files = discovery.discover_files().unwrap();

    // Should only find main.rs and lib.rs
    assert_eq!(
        files.len(),
        2,
        "Should find exactly 2 files (main.rs, lib.rs)"
    );
    assert!(files.iter().any(|f| f.ends_with("main.rs")));
    assert!(files.iter().any(|f| f.ends_with("lib.rs")));

    // CRITICAL: Should NOT find validate.rs in tests_disabled/
    assert!(
        !files.iter().any(|f| f.ends_with("validate.rs")),
        ".pmatignore should exclude tests_disabled/ directory"
    );
    assert!(
        !files
            .iter()
            .any(|f| f.to_string_lossy().contains("tests_disabled")),
        ".pmatignore should exclude tests_disabled/ directory"
    );
}

/// Property test: Both .pmatignore AND .paimlignore should work
#[test]
fn test_both_pmatignore_and_paimlignore_supported() {
    let temp_dir = TempDir::new().unwrap();
    let root = temp_dir.path();

    // Create source files
    fs::write(root.join("keep.rs"), "// Keep this").unwrap();
    fs::write(root.join("exclude1.rs"), "// Exclude by pmatignore").unwrap();
    fs::write(root.join("exclude2.rs"), "// Exclude by paimlignore").unwrap();

    // Create BOTH .pmatignore and .paimlignore
    fs::write(root.join(".pmatignore"), "exclude1.rs\n").unwrap();
    fs::write(root.join(".paimlignore"), "exclude2.rs\n").unwrap();

    let config = FileDiscoveryConfig {
        respect_gitignore: true,
        ..Default::default()
    };

    let discovery = ProjectFileDiscovery::new(root.to_path_buf()).with_config(config);
    let files = discovery.discover_files().unwrap();

    // Should only find keep.rs (both ignore files should work)
    assert_eq!(files.len(), 1);
    assert!(files.iter().any(|f| f.ends_with("keep.rs")));
    assert!(!files.iter().any(|f| f.ends_with("exclude1.rs")));
    assert!(!files.iter().any(|f| f.ends_with("exclude2.rs")));
}