import { assertEquals, assertThrows } from "../../testing/asserts.ts";import { stringify } from "./stringify.ts";import { YAMLError } from "./error.ts";import { DEFAULT_SCHEMA, EXTENDED_SCHEMA } from "./schema/mod.ts";import { Type } from "./type.ts";
Deno.test({ name: "stringified correctly", fn(): void { const FIXTURE = { foo: { bar: true, test: [ "a", "b", { a: false, }, { a: false, }, ], }, test: "foobar", };
const ASSERTS = `foo: bar: true test: - a - b - a: false - a: falsetest: foobar`;
assertEquals(stringify(FIXTURE), ASSERTS); },});
Deno.test({ name: "`!!js/*` yaml types are not handled in default schemas while stringifying", fn(): void { const object = { undefined: undefined }; assertThrows( () => stringify(object), YAMLError, "unacceptable kind of an object to dump", ); },});
Deno.test({ name: "`!!js/*` yaml types are correctly handled with extended schema while stringifying", fn(): void { const object = { regexp: { simple: /foobar/, modifiers: /foobar/im, }, undefined: undefined, };
const expected = `regexp: simple: !<tag:yaml.org,2002:js/regexp> /foobar/ modifiers: !<tag:yaml.org,2002:js/regexp> /foobar/imundefined: !<tag:yaml.org,2002:js/undefined> ''`;
assertEquals(stringify(object, { schema: EXTENDED_SCHEMA }), expected); },});
Deno.test({ name: "`!!js/function` yaml with extended schema throws while stringifying", fn(): void { const func = function foobar() { return "hello world!"; };
assertThrows( () => stringify({ function: func }, { schema: EXTENDED_SCHEMA }), ); },});
Deno.test({ name: "`!*` yaml user defined types are supported while stringifying", fn(): void { const PointYamlType = new Type("!point", { kind: "sequence", resolve(data) { return data !== null && data?.length === 3; }, construct(data) { const [x, y, z] = data; return { x, y, z }; }, predicate(object: unknown) { return !!(object && typeof object === "object" && "x" in object && "y" in object && "z" in object); }, represent(point) { return [point.x, point.y, point.z]; }, }); const SPACE_SCHEMA = DEFAULT_SCHEMA.extend({ explicit: [PointYamlType] });
const object = { point: { x: 1, y: 2, z: 3 }, };
const expected = `point: !<!point>${" "} - 1 - 2 - 3`;
assertEquals(stringify(object, { schema: SPACE_SCHEMA }), expected); },});