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test(derive): close third mutation shard

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Prove missing generated-symbol fallback and exact accumulated form diagnostics for unknown forms, unnamed structs, missing fields, singular/multiple mismatches, and required Option fields.

req: form/004

req: diagnostics/003

req: derive_handler/005

req: test/022

req: test/023
This commit is contained in:
slhx agent
2026-07-17 14:20:29 +02:00
parent a59e9b0bfe
commit dd230b470e
2 changed files with 61 additions and 4 deletions
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hemx-derive/src/lib.rs
+60 -3
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@@ -1023,8 +1023,8 @@ fn compile_error(message: &str) -> TokenStream {
mod tests {
use super::{
add_app_registry_helper, add_component_register_helper, client_handler_has_inputs,
component_handler_names, expand_handler_function, form_fields, form_impl_generics,
form_model_type, form_resource_id, handle_params, handle_requires_form,
component_handler_names, expand_handler_function, form_contract_errors, form_fields,
form_impl_generics, form_model_type, form_resource_id, handle_params, handle_requires_form,
handler_form_model_type, handler_placement, handler_syms_path, has_form_param,
has_non_unit_return, is_type_named, join_contract_errors, missing_component_handlers,
missing_form_generated_files_message, missing_handle_params,
@@ -1249,6 +1249,58 @@ mod tests {
// test req: derive_handler/001 req: derive_handler/005
}
#[test]
fn form_contract_diagnostics_accumulate_all_mismatches() {
let path = std::env::temp_dir().join(format!(
"hemx-derive-form-contract-errors-{}",
std::process::id()
));
let missing: syn::ItemStruct = parse_quote!(
struct Profile {
first: String,
}
);
assert_eq!(
form_contract_errors(&path, "profile", &missing),
vec!["#[hemx::form] could not find generated hemx symbols; add hemx_build::app().run()? to build.rs or check template generation"]
);
std::fs::write(
&path,
"hemx-syms-v1\nform\tprofile.heml::profile\tprofile\t42\nform_field\tprofile\tfirst\tfalse\tfalse\nform_field\tprofile\tsecond\ttrue\tfalse\nform_field\tprofile\ttags\tfalse\ttrue\nform_field\tprofile\trequired_name\ttrue\tfalse\n",
)
.unwrap();
assert_eq!(
form_contract_errors(&path, "unknown", &missing),
vec!["unknown hemx form `unknown`; add data-hemx-form=\"unknown\" to a template or rename this form binding"]
);
let tuple: syn::ItemStruct = parse_quote!(
struct Profile(String);
);
assert_eq!(
form_contract_errors(&path, "profile", &tuple),
vec!["hemx form `profile` must be a struct with named fields"]
);
let mismatched: syn::ItemStruct = parse_quote!(
struct Profile {
first: Vec<String>,
tags: String,
required_name: Option<String>,
}
);
assert_eq!(
form_contract_errors(&path, "profile", &mismatched),
vec![
"hemx form `profile` field `first` accepts one value and must not be Vec<_>",
"hemx form `profile` is missing field `second` for form control `second`",
"hemx form `profile` field `tags` accepts multiple values and must be Vec<_>",
"hemx form `profile` field `required_name` is required in HTML and must not be Option<_>",
]
);
std::fs::remove_file(path).unwrap();
// test req: form/004 req: diagnostics/003
}
#[test]
fn syms_lookup_matches_handle_ident() {
let path = std::env::temp_dir().join("hemx-derive-syms-test.syms");
@@ -1265,7 +1317,12 @@ mod tests {
assert_eq!(handle_params(&path, "create"), vec!["todo_id"]);
assert!(handle_params(&path, "missing").is_empty());
let _ = std::fs::remove_file(path);
let _ = std::fs::remove_file(&path);
assert!(
syms_contains_handle(&path, "create"),
"missing generated symbols defer to the dedicated generated-file diagnostic"
);
assert!(!handle_requires_form(&path, "create"));
}
#[test]