puerto 0.15.0

Puerto — Rust full-stack DDD framework CLI. Scaffolds Clean Architecture projects with auto-wired DI, SQLx support, and zero manual wiring. Formerly puerto-framework.
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use super::*;

// ── puerto generate use-case ──────────────────────────────────────────────

pub(super) fn setup_use_case_stubs(base: &Path) {
    fs::write(
        base.join("puerto.toml"),
        "[project]\nname = \"test-app\"\n\n[[entity]]\nname = \"Product\"\nuse_cases = [\"create_product\"]\n",
    )
    .unwrap();

    fs::create_dir_all(base.join("business/src/domain/product")).unwrap();
    fs::write(
        base.join("business/src/lib.rs"),
        "pub mod domain {\n    pub mod product {\n        pub mod errors;\n        pub mod model;\n        pub mod repository;\n        pub mod use_cases {\n            pub mod create_product;\n        }\n    }\n}\npub mod application {\n    pub mod product {\n        pub mod create_product;\n    }\n}\n",
    )
    .unwrap();

    fs::create_dir_all(base.join("business/src/application/product")).unwrap();
}

#[test]
fn use_case_creates_trait_file() {
    let dir = temp_dir("uc_trait");
    cleanup(&dir);
    fs::create_dir_all(&dir).unwrap();
    setup_use_case_stubs(&dir);
    scaffold::run_use_case("Product", "delete_product", &dir).unwrap();

    assert!(
        dir.join("business/src/domain/product/use_cases/delete_product.rs")
            .exists()
    );

    cleanup(&dir);
}

#[test]
fn use_case_creates_impl_file() {
    let dir = temp_dir("uc_impl");
    cleanup(&dir);
    fs::create_dir_all(&dir).unwrap();
    setup_use_case_stubs(&dir);
    scaffold::run_use_case("Product", "delete_product", &dir).unwrap();

    assert!(
        dir.join("business/src/application/product/delete_product.rs")
            .exists()
    );

    cleanup(&dir);
}

#[test]
fn use_case_trait_file_has_correct_content() {
    let dir = temp_dir("uc_trait_content");
    cleanup(&dir);
    fs::create_dir_all(&dir).unwrap();
    setup_use_case_stubs(&dir);
    scaffold::run_use_case("Product", "delete_product", &dir).unwrap();

    let content =
        fs::read_to_string(dir.join("business/src/domain/product/use_cases/delete_product.rs"))
            .unwrap();
    assert!(content.contains("DeleteProductParams"));
    assert!(content.contains("DeleteProductUseCaseTrait"));

    cleanup(&dir);
}

#[test]
fn use_case_impl_file_has_correct_content() {
    let dir = temp_dir("uc_impl_content");
    cleanup(&dir);
    fs::create_dir_all(&dir).unwrap();
    setup_use_case_stubs(&dir);
    scaffold::run_use_case("Product", "delete_product", &dir).unwrap();

    let content =
        fs::read_to_string(dir.join("business/src/application/product/delete_product.rs")).unwrap();
    assert!(content.contains("DeleteProductUseCaseImpl"));
    assert!(content.contains("ProductRepositoryTrait"));
    assert!(content.contains("DeleteProductUseCaseTrait"));

    cleanup(&dir);
}

#[test]
fn use_case_patches_business_lib_rs() {
    let dir = temp_dir("uc_patch_lib");
    cleanup(&dir);
    fs::create_dir_all(&dir).unwrap();
    setup_use_case_stubs(&dir);
    scaffold::run_use_case("Product", "delete_product", &dir).unwrap();

    let content = fs::read_to_string(dir.join("business/src/lib.rs")).unwrap();
    assert!(content.contains("pub mod delete_product;"));
    assert!(content.contains("pub mod create_product;")); // existing preserved
    assert_eq!(content.matches("pub mod delete_product;").count(), 2); // domain + application

    cleanup(&dir);
}

#[test]
fn use_case_updates_puerto_toml() {
    let dir = temp_dir("uc_puerto_toml");
    cleanup(&dir);
    fs::create_dir_all(&dir).unwrap();
    setup_use_case_stubs(&dir);
    scaffold::run_use_case("Product", "delete_product", &dir).unwrap();

    let content = fs::read_to_string(dir.join("puerto.toml")).unwrap();
    assert!(content.contains("delete_product"));
    assert!(content.contains("create_product")); // existing preserved

    cleanup(&dir);
}

#[test]
fn use_case_regenerates_bootstrap() {
    let dir = temp_dir("uc_bootstrap");
    cleanup(&dir);
    fs::create_dir_all(&dir).unwrap();
    setup_use_case_stubs(&dir);
    scaffold::run_use_case("Product", "delete_product", &dir).unwrap();

    let content = fs::read_to_string(dir.join("presentation/src/generated/bootstrap.rs")).unwrap();
    assert!(content.contains("DeleteProductUseCaseImpl"));
    assert!(content.contains("CreateProductUseCaseImpl"));

    cleanup(&dir);
}

#[test]
fn use_case_normalizes_entity_casing() {
    let dir = temp_dir("uc_normalize");
    cleanup(&dir);
    fs::create_dir_all(&dir).unwrap();
    setup_use_case_stubs(&dir);
    scaffold::run_use_case("product", "delete_product", &dir).unwrap();

    assert!(
        dir.join("business/src/domain/product/use_cases/delete_product.rs")
            .exists()
    );

    cleanup(&dir);
}

#[test]
fn use_case_errors_when_entity_not_in_puerto_toml() {
    let dir = temp_dir("uc_missing_entity");
    cleanup(&dir);
    fs::create_dir_all(&dir).unwrap();
    setup_use_case_stubs(&dir);

    let result = scaffold::run_use_case("NonExistent", "do_something", &dir);
    assert!(result.is_err());

    cleanup(&dir);
}

#[test]
fn use_case_rerun_is_refused_and_leaves_files_untouched() {
    // Running the same `generate use-case` twice used to rewrite both files with the `todo!()`
    // stub and still print "added" — silently discarding whatever had been implemented since.
    let dir = temp_dir("uc_rerun_refused");
    cleanup(&dir);
    fs::create_dir_all(&dir).unwrap();
    setup_use_case_stubs(&dir);
    scaffold::run_use_case("Product", "delete_product", &dir).unwrap();
    let impl_path = dir.join("business/src/application/product/delete_product.rs");
    fs::write(&impl_path, "// implemented by hand\n").unwrap();

    let result = scaffold::run_use_case("Product", "delete_product", &dir);

    assert!(result.is_err(), "a second run must be refused");
    assert!(result.unwrap_err().to_string().contains("already exists"));
    assert_eq!(
        fs::read_to_string(&impl_path).unwrap(),
        "// implemented by hand\n"
    );
    let toml = fs::read_to_string(dir.join("puerto.toml")).unwrap();
    assert_eq!(toml.matches("delete_product").count(), 1);

    cleanup(&dir);
}

// ── T-13: review fixes — generate use-case ────────────────────────────────

#[test]
fn use_case_rejects_an_action_that_is_not_snake_case() {
    let dir = temp_dir("uc_not_snake");
    cleanup(&dir);
    fs::create_dir_all(&dir).unwrap();
    setup_use_case_stubs(&dir);

    let result = scaffold::run_use_case("Product", "ArchiveProduct", &dir);

    assert!(result.is_err());
    assert!(result.unwrap_err().to_string().contains("snake_case"));
    assert!(
        !dir.join("business/src/application/product/ArchiveProduct.rs")
            .exists()
    );
    assert!(
        !fs::read_to_string(dir.join("puerto.toml"))
            .unwrap()
            .contains("ArchiveProduct")
    );

    cleanup(&dir);
}

#[test]
fn use_case_refuses_to_replace_a_scaffolded_crud_use_case() {
    // `generate use-case Item create_item` replaced the working CRUD impl with a `todo!()` stub.
    let dir = temp_dir("uc_crud_clash");
    cleanup(&dir);
    fs::create_dir_all(&dir).unwrap();
    let output = generate_project("uc-crud-clash", &dir).unwrap();
    scaffold::run_scaffold(
        "Product",
        &output,
        &[scaffold_test_field("title", "String")],
        OverwritePolicy::Ask,
    )
    .unwrap();
    let impl_path = output.join("business/src/application/product/create_product.rs");
    let before = fs::read_to_string(&impl_path).unwrap();

    let result = scaffold::run_use_case("Product", "create_product", &output);

    assert!(result.is_err());
    assert!(result.unwrap_err().to_string().contains("already exists"));
    assert_eq!(fs::read_to_string(&impl_path).unwrap(), before);

    cleanup(&dir);
}

#[test]
fn use_case_adds_its_field_to_the_entity_api_struct() {
    let dir = temp_dir("uc_routes_field");
    cleanup(&dir);
    fs::create_dir_all(&dir).unwrap();
    let output = generate_project("uc-routes-field", &dir).unwrap();
    scaffold::run_scaffold(
        "Product",
        &output,
        &[scaffold_test_field("title", "String")],
        OverwritePolicy::Ask,
    )
    .unwrap();

    scaffold::run_use_case("Product", "archive_product", &output).unwrap();

    let routes = fs::read_to_string(output.join("presentation/src/api/product/routes.rs")).unwrap();
    assert!(routes.contains("pub archive_product: Arc<dyn ArchiveProductUseCaseTrait>,"));
    assert!(routes.contains(
        "use business::domain::product::use_cases::archive_product::ArchiveProductUseCaseTrait;"
    ));
    assert!(!routes.contains("UseCaseImpl"), "{routes}");

    cleanup(&dir);
}

#[test]
fn rescaffold_with_force_keeps_custom_use_case_in_the_api_struct() {
    // The custom use case survives in puerto.toml (and so in bootstrap.rs); routes.rs is
    // rewritten from the CRUD template — it must get the field back or bootstrap stops compiling.
    let dir = temp_dir("uc_routes_force");
    cleanup(&dir);
    fs::create_dir_all(&dir).unwrap();
    let output = generate_project("uc-routes-force", &dir).unwrap();
    let fields = [scaffold_test_field("title", "String")];
    scaffold::run_scaffold("Product", &output, &fields, OverwritePolicy::Ask).unwrap();
    scaffold::run_use_case("Product", "archive_product", &output).unwrap();

    scaffold::run_scaffold("Product", &output, &fields, OverwritePolicy::Force).unwrap();

    let routes = fs::read_to_string(output.join("presentation/src/api/product/routes.rs")).unwrap();
    assert_eq!(
        routes
            .matches("pub archive_product: Arc<dyn ArchiveProductUseCaseTrait>,")
            .count(),
        1
    );

    cleanup(&dir);
}