keycloak_theme/test/bin/tools/trimIndet.spec.ts

import trimIndent from "keycloakify/bin/tools/trimIndent";
import { it, describe, assert } from "vitest";

describe("trimIndent", () => {
    it("does not change a left-aligned string as expected", () => {
        const txt = trimIndent`lorem
ipsum`;
        assert.equal(txt, ["lorem", "ipsum"].join("\n"));
    });

    it("removes leading and trailing empty lines from a left-aligned string", () => {
        const txt = trimIndent`
lorem
ipsum
`;
        assert.equal(txt, ["lorem", "ipsum"].join("\n"));
    });

    it("removes indent from an aligned string", () => {
        const txt = trimIndent`
            lorem
            ipsum
        `;
        assert.equal(txt, ["lorem", "ipsum"].join("\n"));
    });

    it("removes indent from unaligned string", () => {
        const txt = trimIndent`
            lorem
                ipsum
        `;
        assert.equal(txt, ["lorem", "    ipsum"].join("\n"));
    });

    it("removes only first and last empty line", () => {
        const txt = trimIndent`

            lorem
            ipsum

            `;

        assert.equal(txt, ["", "lorem", "ipsum", ""].join("\n"));
    });

    it("interpolates non-strings", () => {
        const d = new Date();
        const txt = trimIndent`
            lorem
            ${d}
            ipsum`;

        assert.equal(txt, ["lorem", String(d), "ipsum"].join("\n"));
    });
});

    it("inderpolates preserving new-lines in the interpolated bits", () => {
        const a = ["ipsum", "dolor", "sit"].join('\n')
        const txt = trimIndent`
            lorem
            ${a}
            amet
            `
        assert.equal(txt, ['lorem', 'ipsum', 'dolor', 'sit', 'amet'].join('\n'))
    })