xavierk
eddf27629f
scripts/logo/measure-placeholders rasterises the reference PDFs and measures each logo placeholder's ink box and density into slots.generated.ts. The new placement contains the logo in the measured box, shrinks denser logos by up to 30 percent to match visual weight, picks knockout or a white chip on dark surfaces, and passes an identity test per template. A contact sheet compares each placeholder with the Test Vendor logo and three test logos.
59 lines
2.5 KiB
TypeScript
59 lines
2.5 KiB
TypeScript
import { describe, expect, it } from "vitest";
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import { computeClassicLogoPlacement } from "./logo";
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const BOX = { w: 170, h: 54 };
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const base = { box: BOX, availableWidth: 299, minTextWidth: 160 };
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describe("computeClassicLogoPlacement", () => {
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it("the Test Vendor trimmed 4.6:1 logo is width-limited and stacks above the text", () => {
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const p = computeClassicLogoPlacement({ ...base, aspect: 4.6 });
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expect(p.w).toBeCloseTo(170, 6);
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expect(p.h).toBeCloseTo(170 / 4.6, 6);
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expect(p.stacked).toBe(true);
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});
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it("an untrimmed 3:1 logo is height-limited (54 pt) and still stacks", () => {
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const p = computeClassicLogoPlacement({ ...base, aspect: 3 });
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expect(p.h).toBe(54);
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expect(p.w).toBeCloseTo(162, 6);
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expect(p.stacked).toBe(true);
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});
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it("a square logo is 54 x 54 and sits beside the text", () => {
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const p = computeClassicLogoPlacement({ ...base, aspect: 1 });
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expect(p).toEqual({ w: 54, h: 54, stacked: false });
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});
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it("stacks exactly when the text beside the logo would drop under the minimum", () => {
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// 299 - 54 - 14 = 231 beside a square; a 2:1 logo (108 wide) leaves 177; a 2.5:1 one (135) leaves 150.
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expect(computeClassicLogoPlacement({ ...base, aspect: 2 }).stacked).toBe(false);
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expect(computeClassicLogoPlacement({ ...base, aspect: 2.5 }).stacked).toBe(true);
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// The boundary: leaves exactly 160.
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const w = 299 - 14 - 160;
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expect(computeClassicLogoPlacement({ ...base, aspect: w / 54 }).stacked).toBe(false);
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expect(computeClassicLogoPlacement({ ...base, aspect: (w + 0.01) / 54 }).stacked).toBe(true);
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});
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it("gives the logo more room on a wider column (Letter)", () => {
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const a4 = computeClassicLogoPlacement({ ...base, aspect: 2.4, availableWidth: 299.28 });
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const letter = computeClassicLogoPlacement({ ...base, aspect: 2.4, availableWidth: 316 });
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expect(a4.stacked).toBe(true);
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expect(letter.stacked).toBe(false);
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});
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it("never exceeds the box, whatever the aspect", () => {
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for (const aspect of [0.2, 0.5, 1, 1.5, 3, 4.6, 10, 40]) {
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const p = computeClassicLogoPlacement({ ...base, aspect });
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expect(p.w).toBeLessThanOrEqual(170 + 1e-9);
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expect(p.h).toBeLessThanOrEqual(54 + 1e-9);
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expect(p.w / p.h).toBeCloseTo(aspect, 6);
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}
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});
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it("falls back to the box aspect for a bad aspect", () => {
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const p = computeClassicLogoPlacement({ ...base, aspect: Number.NaN });
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expect(p.w).toBeCloseTo(170, 6);
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expect(p.h).toBeCloseTo(54, 6);
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});
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});
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