inspector/clients/tui/__tests__/schemaToForm.test.ts
cliffhall 8356033d58 fix: strip the enum null sentinel, and make the preset test cover its wiring
Copilot round 4: no new visible comments, two in the suppressed block. Both
valid.

1. The `type: [T, "null"]` encoding keeps its keywords at the top level, so a
   nullable enum written that way carries the null *inside* the list:
   `{ type: ["string", "null"], enum: ["envio", "recebimento", null] }`. The
   collapse left it there, which broke both renderers in different ways — the
   web dispatcher handed `null` to Mantine as option data, and the TUI's
   all-strings check rejected the whole enum and fell back to a plain text
   field. Neither is the dropdown the schema asks for.

   The collapse now strips a `null` member whenever it flattens, since that
   fact has already moved onto `nullable`. An enum of nothing but `null`
   drops out entirely: it offers no value a dropdown could show, so the plain
   widget serves the field better than an empty select. Covered in core and
   end-to-end in both dispatchers.

2. The new integration test claimed in its own header to pin the registry and
   config wiring, then called `createNullableFieldsTool()` directly — so a
   misspelt preset case or a config naming a dead preset would have left it
   green. A fair "this does not test what it says" catch. It now resolves the
   checked-in `nullable-fields-http.json` through `loadConfig` →
   `resolveConfig`, matching `duplicate-tool-names.test.ts`, and asserts the
   resolved tool names before booting the server.

Signed-off-by: cliffhall <cliff@futurescale.com>
2026-08-15 18:28:38 -04:00

385 lines
12 KiB
TypeScript

import { describe, it, expect } from "vitest";
import { schemaToForm } from "../src/utils/schemaToForm.js";
describe("schemaToForm", () => {
it("returns an empty Parameters section when there is no schema", () => {
const form = schemaToForm(null, "noParams");
expect(form.title).toBe("Test Tool: noParams");
expect(form.sections).toEqual([{ title: "Parameters", fields: [] }]);
});
it("returns an empty Parameters section when properties are absent", () => {
const form = schemaToForm({}, "empty");
expect(form.sections[0]?.fields).toEqual([]);
});
it("treats a non-object property value as an empty schema instead of throwing", () => {
// A malformed server schema whose property value is null/primitive must not
// crash — the field degrades to a plain string input labelled by its key.
const form = schemaToForm(
{ properties: { bad: null, worse: 42 } },
"malformed",
);
const fields = form.sections[0]?.fields ?? [];
expect(fields).toHaveLength(2);
expect(
fields.map((f) => ({ name: f.name, type: f.type, label: f.label })),
).toEqual([
{ name: "bad", type: "string", label: "bad" },
{ name: "worse", type: "string", label: "worse" },
]);
});
it("maps each JSON Schema type to the matching ink-form field type", () => {
const form = schemaToForm(
{
properties: {
name: { type: "string", title: "Name" },
age: { type: "integer", minimum: 0, maximum: 120 },
ratio: { type: "number", minimum: 0, maximum: 1 },
active: { type: "boolean" },
mystery: { type: "object" },
},
required: ["name"],
},
"typed",
);
const fields = form.sections[0]!.fields;
const byName = Object.fromEntries(fields.map((f) => [f.name, f]));
expect(byName.name).toMatchObject({
type: "string",
label: "Name",
required: true,
});
expect(byName.age).toMatchObject({ type: "integer", min: 0, max: 120 });
expect(byName.ratio).toMatchObject({ type: "float", min: 0, max: 1 });
expect(byName.active).toMatchObject({ type: "boolean" });
// Unknown types fall back to string, and label falls back to the key.
expect(byName.mystery).toMatchObject({ type: "string", label: "mystery" });
});
it("builds a select field from an enum", () => {
const form = schemaToForm(
{ properties: { color: { type: "string", enum: ["red", "blue"] } } },
"enum",
);
expect(form.sections[0]!.fields[0]).toMatchObject({
type: "select",
options: [
{ label: "red", value: "red" },
{ label: "blue", value: "blue" },
],
});
});
it("builds a select field from an array-of-enum on items.enum alone", () => {
const form = schemaToForm(
{
properties: {
// Standard array-of-enums shape: options come from `items.enum` with
// NO top-level `enum`. The array branch keys on `items.enum` alone
// (matching the web guard), so this renders as a select.
tags: {
type: "array",
items: { enum: ["a", "b"] },
},
},
},
"arrayEnum",
);
expect(form.sections[0]!.fields[0]).toMatchObject({
type: "select",
options: [
{ label: "a", value: "a" },
{ label: "b", value: "b" },
],
});
});
it("still builds a select for an array-of-enum that also carries a top-level enum", () => {
const form = schemaToForm(
{
properties: {
tags: {
type: "array",
enum: ["a", "b"],
items: { enum: ["a", "b"] },
},
},
},
"arrayEnumRedundant",
);
expect(form.sections[0]!.fields[0]).toMatchObject({
type: "select",
options: [
{ label: "a", value: "a" },
{ label: "b", value: "b" },
],
});
});
it("uses enumNames as single-select labels while keeping raw values", () => {
const form = schemaToForm(
{
properties: {
pet: {
type: "string",
enum: ["pet-1", "pet-2"],
enumNames: ["Cats", "Dogs"],
},
},
},
"titledEnum",
);
expect(form.sections[0]!.fields[0]).toMatchObject({
type: "select",
options: [
{ label: "Cats", value: "pet-1" },
{ label: "Dogs", value: "pet-2" },
],
});
});
it("falls back to raw single-select labels when enumNames length mismatches", () => {
const form = schemaToForm(
{
properties: {
pet: {
type: "string",
enum: ["pet-1", "pet-2"],
// Only one name for two values — a wrong-length zip would
// mislabel, so the raw values are used as labels.
enumNames: ["Cats"],
},
},
},
"mismatchedEnum",
);
expect(form.sections[0]!.fields[0]).toMatchObject({
options: [
{ label: "pet-1", value: "pet-1" },
{ label: "pet-2", value: "pet-2" },
],
});
});
it("uses items.enumNames as array-of-enum labels while keeping raw values", () => {
const form = schemaToForm(
{
properties: {
pets: {
type: "array",
items: { enum: ["pet-1", "pet-2"], enumNames: ["Cats", "Dogs"] },
},
},
},
"titledArrayEnum",
);
expect(form.sections[0]!.fields[0]).toMatchObject({
type: "select",
options: [
{ label: "Cats", value: "pet-1" },
{ label: "Dogs", value: "pet-2" },
],
});
});
it("falls back to raw array-of-enum labels when items.enumNames length mismatches", () => {
const form = schemaToForm(
{
properties: {
pets: {
type: "array",
items: { enum: ["pet-1", "pet-2"], enumNames: ["Cats"] },
},
},
},
"mismatchedArrayEnum",
);
expect(form.sections[0]!.fields[0]).toMatchObject({
options: [
{ label: "pet-1", value: "pet-1" },
{ label: "pet-2", value: "pet-2" },
],
});
});
it("carries a JSON Schema default through as the field's initialValue", () => {
const form = schemaToForm(
{ properties: { greeting: { type: "string", default: "hi" } } },
"withDefault",
);
expect(form.sections[0]!.fields[0]).toMatchObject({ initialValue: "hi" });
});
// #2015 (the TUI twin of #1928): an argument declared with Zod's `.nullish()`
// has no top-level `type`/`enum` — they sit on the surviving `anyOf` branch —
// so before normalization every one of these degraded to a plain text field.
describe("nullable unions", () => {
it("renders a select for an anyOf string-enum|null argument", () => {
const form = schemaToForm(
{
properties: {
direction: {
anyOf: [
{ type: "string", enum: ["envio", "recebimento"] },
{ type: "null" },
],
},
},
},
"nullableEnum",
);
expect(form.sections[0]!.fields[0]).toMatchObject({
name: "direction",
type: "select",
options: [
{ label: "envio", value: "envio" },
{ label: "recebimento", value: "recebimento" },
],
});
});
it("maps the remaining nullable scalar branches to their typed fields", () => {
const form = schemaToForm(
{
properties: {
reference: { anyOf: [{ type: "string" }, { type: "null" }] },
quantity: {
anyOf: [
{ type: "integer", minimum: 1, maximum: 9 },
{ type: "null" },
],
},
ratio: { anyOf: [{ type: "number" }, { type: "null" }] },
express: { anyOf: [{ type: "boolean" }, { type: "null" }] },
},
},
"nullableScalars",
);
const fields = form.sections[0]!.fields;
expect(fields.map((f) => ({ name: f.name, type: f.type }))).toEqual([
{ name: "reference", type: "string" },
{ name: "quantity", type: "integer" },
{ name: "ratio", type: "float" },
{ name: "express", type: "boolean" },
]);
// The branch's own constraints are hoisted along with its type.
expect(fields[1]).toMatchObject({ min: 1, max: 9 });
});
it("renders a select for a nullable array-of-enum argument", () => {
const form = schemaToForm(
{
properties: {
tags: {
anyOf: [
{ type: "array", items: { enum: ["a", "b"] } },
{ type: "null" },
],
},
},
},
"nullableArrayEnum",
);
expect(form.sections[0]!.fields[0]).toMatchObject({
type: "select",
options: [
{ label: "a", value: "a" },
{ label: "b", value: "b" },
],
});
});
// With the null left in the list, the all-strings check would reject the
// enum and this would degrade to a plain text field.
it("renders a select for a type: [string, null] enum, null stripped", () => {
const form = schemaToForm(
{
properties: {
direction: {
type: ["string", "null"],
enum: ["envio", "recebimento", null],
},
},
},
"typeArrayNullableEnum",
);
expect(form.sections[0]!.fields[0]).toMatchObject({
type: "select",
options: [
{ label: "envio", value: "envio" },
{ label: "recebimento", value: "recebimento" },
],
});
});
it("collapses the type: [T, null] encoding too", () => {
const form = schemaToForm(
{
properties: {
note: { type: ["string", "null"] },
flag: { type: ["boolean", "null"] },
},
},
"typeArrayNull",
);
expect(
form.sections[0]!.fields.map((f) => ({ name: f.name, type: f.type })),
).toEqual([
{ name: "note", type: "string" },
{ name: "flag", type: "boolean" },
]);
});
// ink-form hands a select's stringified value straight back, so a numeric
// enum routed to a select would submit "1" for 1. The typed field loses the
// enum constraint but keeps the value's type — the safer loss.
it("routes a nullable numeric enum to its typed field, not a select", () => {
const form = schemaToForm(
{
properties: {
level: {
anyOf: [{ type: "integer", enum: [1, 2] }, { type: "null" }],
},
ratio: {
anyOf: [{ type: "number", enum: [0.5, 1.5] }, { type: "null" }],
},
},
},
"numericEnum",
);
expect(
form.sections[0]!.fields.map((f) => ({ name: f.name, type: f.type })),
).toEqual([
{ name: "level", type: "integer" },
{ name: "ratio", type: "float" },
]);
});
it("routes a plain numeric enum to its typed field too", () => {
const form = schemaToForm(
{ properties: { level: { type: "integer", enum: [1, 2] } } },
"plainNumericEnum",
);
expect(form.sections[0]!.fields[0]).toMatchObject({ type: "integer" });
});
it("leaves a union of two real types as a plain string field", () => {
const form = schemaToForm(
{
properties: {
mixed: { anyOf: [{ type: "string" }, { type: "number" }] },
},
},
"realUnion",
);
expect(form.sections[0]!.fields[0]).toMatchObject({
name: "mixed",
type: "string",
});
});
});
});