tablo-core 0.7.0

The core toolkit types for Tablo, a server-rendered admin toolkit on Topcoat and Toasty.
Documentation 
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use super::*;
use crate::test_support::DummyUser;

#[test]
fn a_single_step_path_names_its_field_and_a_traversal_is_refused() {
    let single = ModelPath(toasty_core::stmt::Path::field(
        <DummyUser as toasty::schema::Model>::id(),
        0,
    ));
    assert_eq!(single_segment(&single), Ok(0));
    let mut two = single.clone();
    two.0.chain(&toasty_core::stmt::Path::field(
        <DummyUser as toasty::schema::Model>::id(),
        1,
    ));
    assert_eq!(
        single_segment(&two),
        Err(DeclarationErrorKind::TraversalLens { steps: 2 })
    );
}

/// Reports uniqueness from the model's index list, where `#[unique]` lives.
#[test]
fn uniqueness_reads_the_model_index_list() {
    let unique = |path: &ModelPath| field::<DummyUser>(path).unwrap().unique;
    assert!(
        unique(&ModelPath::of(&DummyUser::fields().email())),
        "#[unique] on email must surface as a single-field unique index"
    );
    assert!(
        !unique(&ModelPath::of(&DummyUser::fields().name())),
        "a field with no unique index must not report unique"
    );
    assert!(
        !unique(&ModelPath::of(&DummyUser::fields().id())),
        "the primary key is unique by construction, not by declared constraint"
    );
}