# test.build/core/converters/section.page.converter.test.ts

> 57 lines of code and 0 definitions.

Tree: Codebase Testing
Language: typescript
Canonical: https://banes-lab.com/anatomy/testing#file-testing-test-build-core-converters-section-page-converter-test-ts
Source text: https://banes-lab.com/source/testing/test.build/core/converters/section.page.converter.test.ts.txt

Listed in [test.build/core/converters](https://banes-lab.com/api/source/testing/test.build/core/converters.md), after [test.build/core/converters/section.converter.test.ts](https://banes-lab.com/source/testing/test.build/core/converters/section.converter.test.ts.md) and before [test.build/core/converters/section.segment.converter.test.ts](https://banes-lab.com/source/testing/test.build/core/converters/section.segment.converter.test.ts.md).

## Contained in

- [test.build/core/converters](https://banes-lab.com/anatomy/testing/folder-testing-test-build-core-converters.md)

## Source

```typescript
import { describe, expect, it } from "vitest";
import { distinctSections, sectionSubjectOf } from "@banes-lab/build-scripts/core/converters/section.page.converter.ts";

const SEED = {
    intro: "The core words.",
    kind: null,
    name: "Core Vocabulary",
    page: "ontology",
    part: 1,
    parts: 1,
    records: 2,
    rows: [0, 2] as const,
    section: "core-vocabulary",
    tab: "principles",
    tabPath: "/ontology",
    tabTitle: "Principles",
};

describe("sectionSubjectOf", () => {
    it("places a section page under its tab and points its alternates at the section leaf of its tab", () => {
        const subject = sectionSubjectOf(SEED);
        expect(subject.path).toBe("/ontology/principles/core-vocabulary");
        expect(subject.alternates).toStrictEqual({
            json: "/json/ontology/principles/core-vocabulary",
            markdown: "/ontology/principles/core-vocabulary.md",
        });
        expect(subject.title).toBe("Core Vocabulary — Principles — Bane's Lab");
        expect(subject.description).toBe("The 2 records of the Core Vocabulary section in Principles.");
        expect(subject.parts).toStrictEqual([{ label: "Part 1 of 1", path: subject.path }]);
    });

    it("names the section in a title that another page already holds, and keeps the rest plain", () => {
        const [held, free] = distinctSections(
            [SEED, { ...SEED, name: "Other", section: "other" }],
            new Set(["Core Vocabulary — Principles — Bane's Lab"]),
        );
        expect(held?.title).toBe("Core Vocabulary — section — Principles — Bane's Lab");
        expect(free?.title).toBe("Other — Principles — Bane's Lab");
        const [keywords, productions] = distinctSections(
            [
                { ...SEED, kind: "keywords", section: "pag-keywords-flow" },
                { ...SEED, kind: "productions", section: "pag-productions-flow" },
            ],
            new Set(),
        );
        expect(keywords?.title).toBe("Core Vocabulary — keywords — Principles — Bane's Lab");
        expect(productions?.title).toBe("Core Vocabulary — productions — Principles — Bane's Lab");
    });

    it("numbers a later part of a section in its path, title and description, and links every part", () => {
        const subject = sectionSubjectOf({ ...SEED, part: 2, parts: 3, rows: [1, 2] });
        expect(subject.path).toBe("/ontology/principles/core-vocabulary~2");
        expect(subject.title).toBe("Part 2 of 3 — Core Vocabulary — Principles — Bane's Lab");
        expect(subject.description.startsWith("Part 2 of 3")).toBe(true);
        expect(subject.parts.map((link) => link.path)).toStrictEqual([
            "/ontology/principles/core-vocabulary",
            "/ontology/principles/core-vocabulary~2",
            "/ontology/principles/core-vocabulary~3",
        ]);
    });
});
```