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Marc-André Bombeck
bf5deb33e2
Reference-range classification + low/high range rendering was implemented three times (validations, PDF core, lab list). Extract a single classifier and a structure-only range formatter that takes a per-surface number formatter, so each surface keeps its own number formatting while sharing the canonical classification. Behaviour is unchanged per surface and now covered by one test.
66 lines
2.3 KiB
TypeScript
66 lines
2.3 KiB
TypeScript
import { describe, expect, it } from "vitest";
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import {
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classifyReferenceRange,
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formatReferenceRange,
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} from "@/lib/labs/reference-range";
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describe("classifyReferenceRange", () => {
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it("is unknown when no bounds are reported", () => {
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expect(classifyReferenceRange(5, null, null)).toBe("unknown");
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expect(classifyReferenceRange(5, undefined, undefined)).toBe("unknown");
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});
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it("treats both bounds as inclusive", () => {
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expect(classifyReferenceRange(4, 4, 6)).toBe("in-range");
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expect(classifyReferenceRange(6, 4, 6)).toBe("in-range");
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expect(classifyReferenceRange(5, 4, 6)).toBe("in-range");
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});
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it("flags below / above the full range", () => {
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expect(classifyReferenceRange(3.9, 4, 6)).toBe("below");
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expect(classifyReferenceRange(6.1, 4, 6)).toBe("above");
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});
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it("classifies against a high-only bound", () => {
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expect(classifyReferenceRange(100, null, 116)).toBe("in-range");
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expect(classifyReferenceRange(120, null, 116)).toBe("above");
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});
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it("classifies against a low-only bound", () => {
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expect(classifyReferenceRange(8, 10, null)).toBe("below");
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expect(classifyReferenceRange(12, 10, null)).toBe("in-range");
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});
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});
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describe("formatReferenceRange", () => {
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// An identity-ish formatter keeps the structure assertions readable.
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const fmt = (n: number) => String(n);
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it("renders a full low–high range with an en-dash and no spaces", () => {
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expect(formatReferenceRange(4, 6, fmt)).toBe("4–6");
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});
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it("renders a high-only bound with ≤", () => {
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expect(formatReferenceRange(null, 116, fmt)).toBe("≤ 116");
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});
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it("renders a low-only bound with ≥", () => {
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expect(formatReferenceRange(10, null, fmt)).toBe("≥ 10");
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});
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it("returns the empty string for no bounds by default", () => {
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expect(formatReferenceRange(null, null, fmt)).toBe("");
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expect(formatReferenceRange(undefined, undefined, fmt)).toBe("");
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});
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it("honours a custom emptyText for the no-bounds case", () => {
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expect(formatReferenceRange(null, null, fmt, { emptyText: "—" })).toBe("—");
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});
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it("defers digit formatting entirely to the callback", () => {
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const oneDecimal = (n: number) => n.toFixed(1);
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expect(formatReferenceRange(4, 6, oneDecimal)).toBe("4.0–6.0");
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});
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});
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