50 lines
2.1 KiB
TypeScript
50 lines
2.1 KiB
TypeScript
import { getPerfectElementSize } from "./sizeHelpers";
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import * as constants from "../constants";
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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, 20);
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expect(width).toEqual(149);
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expect(height).toEqual(0);
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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", 20, 140);
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expect(width).toEqual(0);
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expect(height).toEqual(140);
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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, 30);
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expect(width).toEqual(200);
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expect(height).toEqual(0);
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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).toEqual(0);
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expect(height).toEqual(100);
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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).toEqual(120);
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expect(height).toEqual(290);
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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).toEqual(135);
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expect(height).toEqual(135);
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});
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it("should return height:0 and width:0 when width and heigh are 0", () => {
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const { height, width } = getPerfectElementSize("arrow", 0, 0);
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expect(width).toEqual(0);
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expect(height).toEqual(0);
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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).toEqual(120);
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expect(height).toEqual(120);
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});
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});
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});
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