cratestack-macros 0.7.2

Rust-native schema-first framework for typed HTTP APIs, generated clients, and backend services.
Documentation 
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//! cratestack#328 regression guards: `db = Postgres` runtime codegen is
//! unchanged (still `sqlx::PgPool`-shaped), and `db = None` runtime
//! codegen has genuinely no `PgPool`/`sqlx` anywhere — not merely an
//! `Option<PgPool>` that happens to always be `None`.

use super::super::super::parse::ServerDb;
use super::build_runtime_block;

#[test]
fn postgres_runtime_block_still_takes_a_pgpool_builder() {
    let generated = build_runtime_block(ServerDb::Postgres, &[], &[], &[]).to_string();

    assert!(
        generated.contains("fn builder (pool : :: cratestack :: sqlx :: PgPool)"),
        "db = Postgres must keep its existing `Cratestack::builder(pool: PgPool)` \
         signature byte-for-byte — generated tokens were: {generated}"
    );
    assert!(generated.contains("fn pool (& self) -> & :: cratestack :: sqlx :: PgPool"));
    assert!(generated.contains("runtime : :: cratestack :: __private :: SqlxRuntime"));
}

#[test]
fn none_runtime_block_builder_takes_no_pool_parameter() {
    let generated = build_runtime_block(ServerDb::None, &[], &[], &[]).to_string();

    assert!(
        generated.contains("fn builder () -> CratestackBuilder"),
        "db = None must produce a `Cratestack::builder()` with zero parameters — \
         generated tokens were: {generated}"
    );
}

#[test]
fn none_runtime_block_never_mentions_pgpool_or_sqlx() {
    let generated = build_runtime_block(ServerDb::None, &[], &[], &[]).to_string();

    assert!(
        !generated.contains("PgPool"),
        "db = None runtime block must not reference `PgPool` at all — found it in: {generated}"
    );
    assert!(
        !generated.contains("sqlx"),
        "db = None runtime block must not reference `sqlx` at all — found it in: {generated}"
    );
    assert!(
        !generated.contains("SqlxRuntime"),
        "db = None runtime block must not reference `SqlxRuntime` at all — found it in: \
         {generated}"
    );
}

#[test]
fn none_runtime_block_cratestack_type_is_a_zero_field_marker() {
    let generated = build_runtime_block(ServerDb::None, &[], &[], &[]).to_string();

    // Not `struct Cratestack { runtime: ... }`, not `struct Cratestack {
    // pool: Option<PgPool> }` — a bare marker with no fields at all, so
    // there is no field to (mis)construct or unwrap.
    assert!(generated.contains("pub struct Cratestack ;"));
    assert!(!generated.contains("fn events"));
    assert!(!generated.contains("fn views"));
}