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69 lines
2.8 KiB
TypeScript
69 lines
2.8 KiB
TypeScript
import { vi } from "vitest";
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import * as constants from "@excalidraw/common";
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import { getPerfectElementSize } from "../src/sizeHelpers";
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const EPSILON_DIGITS = 3;
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// Needed so that we can mock the value of constants which is done in
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// below tests. In Jest this wasn't needed as global override was possible
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// but vite doesn't allow that hence we need to mock
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vi.mock(
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"@excalidraw/common",
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//@ts-ignore
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async (importOriginal) => {
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const module: any = await importOriginal();
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return { ...module };
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},
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);
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describe("getPerfectElementSize", () => {
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it("should return height:0 if `elementType` is line and locked angle is 0", () => {
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const { height, width } = getPerfectElementSize("line", 149, 10);
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expect(width).toBeCloseTo(149, EPSILON_DIGITS);
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expect(height).toBeCloseTo(0, EPSILON_DIGITS);
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});
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it("should return width:0 if `elementType` is line and locked angle is 90 deg (Math.PI/2)", () => {
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const { height, width } = getPerfectElementSize("line", 10, 140);
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expect(width).toBeCloseTo(0, EPSILON_DIGITS);
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expect(height).toBeCloseTo(140, EPSILON_DIGITS);
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});
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it("should return height:0 if `elementType` is arrow and locked angle is 0", () => {
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const { height, width } = getPerfectElementSize("arrow", 200, 20);
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expect(width).toBeCloseTo(200, EPSILON_DIGITS);
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expect(height).toBeCloseTo(0, EPSILON_DIGITS);
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});
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it("should return width:0 if `elementType` is arrow and locked angle is 90 deg (Math.PI/2)", () => {
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const { height, width } = getPerfectElementSize("arrow", 10, 100);
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expect(width).toBeCloseTo(0, EPSILON_DIGITS);
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expect(height).toBeCloseTo(100, EPSILON_DIGITS);
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});
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it("should return adjust height to be width * tan(locked angle)", () => {
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const { height, width } = getPerfectElementSize("arrow", 120, 185);
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expect(width).toBeCloseTo(120, EPSILON_DIGITS);
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expect(height).toBeCloseTo(207.846, EPSILON_DIGITS);
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});
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it("should return height equals to width if locked angle is 45 deg", () => {
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const { height, width } = getPerfectElementSize("arrow", 135, 145);
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expect(width).toBeCloseTo(135, EPSILON_DIGITS);
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expect(height).toBeCloseTo(135, EPSILON_DIGITS);
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});
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it("should return height:0 and width:0 when width and height are 0", () => {
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const { height, width } = getPerfectElementSize("arrow", 0, 0);
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expect(width).toBeCloseTo(0, EPSILON_DIGITS);
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expect(height).toBeCloseTo(0, EPSILON_DIGITS);
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});
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describe("should respond to SHIFT_LOCKING_ANGLE constant", () => {
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it("should have only 2 locking angles per section if SHIFT_LOCKING_ANGLE = 45 deg (Math.PI/4)", () => {
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(constants as any).SHIFT_LOCKING_ANGLE = Math.PI / 4;
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const { height, width } = getPerfectElementSize("arrow", 120, 185);
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expect(width).toBeCloseTo(120, EPSILON_DIGITS);
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expect(height).toBeCloseTo(120, EPSILON_DIGITS);
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});
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});
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});
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