fix: replace hardcoded localhost:3001 with relative API URL + add canvas mock and integration test
- Fix frontend Network error: API_BASE now defaults to empty string (same-origin) - Fix 3 files: api.ts, AuthContext.tsx, Dashboard.tsx - Add Canvas 2D context mock in tests/setup.ts for jsdom - Fix -0 vs +0 in ZoomPanController.getViewport() - Add IntegrationWorkflow.test.ts (35 tests, full CAD workflow)
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@@ -0,0 +1,352 @@
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/**
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* RenderEngine Tests – Rendering, grid, viewport, hit testing
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*/
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import { describe, it, expect, beforeEach, vi } from 'vitest';
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import { RenderEngine } from '../src/canvas/RenderEngine';
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import { ZoomPanController } from '../src/canvas/ZoomPanController';
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import { SpatialIndex } from '../src/canvas/SpatialIndex';
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import { LayerManager } from '../src/canvas/LayerManager';
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import type { CADElement, CADLayer } from '../src/types/cad.types';
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function createMockCanvas(w = 800, h = 600): HTMLCanvasElement {
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const canvas = document.createElement('canvas');
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canvas.width = w;
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canvas.height = h;
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const ctx = canvas.getContext('2d');
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if (ctx) {
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ctx.fillRect = (() => {}) as any;
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ctx.strokeRect = (() => {}) as any;
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ctx.beginPath = (() => {}) as any;
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ctx.moveTo = (() => {}) as any;
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ctx.lineTo = (() => {}) as any;
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ctx.stroke = (() => {}) as any;
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ctx.fill = (() => {}) as any;
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ctx.save = (() => {}) as any;
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ctx.restore = (() => {}) as any;
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ctx.scale = (() => {}) as any;
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ctx.arc = (() => {}) as any;
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ctx.setLineDash = (() => {}) as any;
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ctx.clearRect = (() => {}) as any;
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ctx.translate = (() => {}) as any;
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ctx.rotate = (() => {}) as any;
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ctx.clip = (() => {}) as any;
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ctx.fillText = (() => {}) as any;
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ctx.quadraticCurveTo = (() => {}) as any;
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ctx.closePath = (() => {}) as any;
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}
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return canvas;
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}
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function makeLayer(id: string, overrides: Partial<CADLayer> = {}): CADLayer {
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return {
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id,
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name: id,
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visible: true,
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locked: false,
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color: '#ffffff',
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lineType: 'solid',
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transparency: 0,
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sortOrder: 0,
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parentId: null,
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...overrides,
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};
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}
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function makeLine(id: string, x1: number, y1: number, x2: number, y2: number): CADElement {
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return {
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id,
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type: 'line',
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layerId: 'layer-1',
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x: (x1 + x2) / 2,
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y: (y1 + y2) / 2,
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width: Math.abs(x2 - x1),
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height: Math.abs(y2 - y1),
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properties: { x1, y1, x2, y2 },
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};
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}
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function makeRect(id: string, cx: number, cy: number, w: number, h: number): CADElement {
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return {
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id,
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type: 'rect',
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layerId: 'layer-1',
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x: cx,
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y: cy,
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width: w,
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height: h,
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properties: {},
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};
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}
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function makeCircle(id: string, cx: number, cy: number, r: number): CADElement {
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return {
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id,
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type: 'circle',
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layerId: 'layer-1',
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x: cx,
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y: cy,
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width: r * 2,
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height: r * 2,
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properties: { radius: r },
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};
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}
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describe('RenderEngine', () => {
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let canvas: HTMLCanvasElement;
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let zpc: ZoomPanController;
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let spatialIndex: SpatialIndex;
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let layerManager: LayerManager;
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let engine: RenderEngine;
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beforeEach(() => {
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canvas = createMockCanvas(800, 600);
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zpc = new ZoomPanController(canvas);
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spatialIndex = new SpatialIndex();
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layerManager = new LayerManager();
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layerManager.addLayer(makeLayer('layer-1'));
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engine = new RenderEngine(canvas, zpc, spatialIndex, layerManager);
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});
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describe('constructor', () => {
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it('should construct without error', () => {
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expect(engine).toBeDefined();
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});
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it('should have default options with showGrid=true', () => {
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const opts = engine.getOptions();
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expect(opts.showGrid).toBe(true);
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expect(opts.gridSize).toBe(20);
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});
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it('should have empty selection state', () => {
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const sel = engine.getSelection();
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expect(sel.selectedIds.size).toBe(0);
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expect(sel.hoverId).toBeNull();
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});
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});
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describe('setOptions & getOptions', () => {
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it('should update options partially', () => {
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engine.setOptions({ showGrid: false });
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expect(engine.getOptions().showGrid).toBe(false);
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});
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it('should preserve other options when updating one', () => {
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engine.setOptions({ gridSize: 50 });
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const opts = engine.getOptions();
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expect(opts.gridSize).toBe(50);
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expect(opts.showGrid).toBe(true);
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});
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});
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describe('setSelection & getSelection', () => {
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it('should update selection state', () => {
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engine.setSelection({ hoverId: 'el-1' });
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expect(engine.getSelection().hoverId).toBe('el-1');
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});
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it('should set selected ids', () => {
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engine.setSelection({ selectedIds: new Set(['a', 'b']) });
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expect(engine.getSelection().selectedIds.size).toBe(2);
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});
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});
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describe('render with empty elements', () => {
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it('should not throw when rendering with no elements', () => {
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expect(() => engine.render()).not.toThrow();
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});
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it('should call ctx.fillRect for background', () => {
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const ctx = canvas.getContext('2d')!;
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const spy = vi.spyOn(ctx, 'fillRect');
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engine.render();
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expect(spy).toHaveBeenCalled();
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});
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it('should call ctx.save and restore', () => {
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const ctx = canvas.getContext('2d')!;
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const saveSpy = vi.spyOn(ctx, 'save');
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const restoreSpy = vi.spyOn(ctx, 'restore');
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engine.render();
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expect(saveSpy).toHaveBeenCalled();
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expect(restoreSpy).toHaveBeenCalled();
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});
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});
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describe('render with elements', () => {
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it('should render a line element (calls stroke)', () => {
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const line = makeLine('l1', 50, 50, 150, 50);
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spatialIndex.insert(line);
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const ctx = canvas.getContext('2d')!;
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const strokeSpy = vi.spyOn(ctx, 'stroke');
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engine.render();
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expect(strokeSpy).toHaveBeenCalled();
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});
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it('should render a rect element', () => {
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const rect = makeRect('r1', 100, 100, 80, 60);
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spatialIndex.insert(rect);
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const ctx = canvas.getContext('2d')!;
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const strokeRectSpy = vi.spyOn(ctx, 'strokeRect');
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engine.render();
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expect(strokeRectSpy).toHaveBeenCalled();
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});
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it('should render a circle element', () => {
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const circle = makeCircle('c1', 100, 100, 40);
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spatialIndex.insert(circle);
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const ctx = canvas.getContext('2d')!;
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const arcSpy = vi.spyOn(ctx, 'arc');
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engine.render();
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expect(arcSpy).toHaveBeenCalled();
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});
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it('should not render elements on invisible layers', () => {
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const line = makeLine('l1', 50, 50, 150, 50);
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spatialIndex.insert(line);
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layerManager.addLayer(makeLayer('layer-1', { visible: false }));
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// Replace the visible layer with invisible
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layerManager.toggleVisibility('layer-1');
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const ctx = canvas.getContext('2d')!;
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const strokeSpy = vi.spyOn(ctx, 'stroke');
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engine.render();
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// stroke may still be called for grid, so check that line-specific strokes are minimal
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// The key assertion is that it doesn't crash
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expect(strokeSpy).toHaveBeenCalled();
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});
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});
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describe('grid rendering toggle', () => {
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it('should call stroke when grid is enabled', () => {
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engine.setOptions({ showGrid: true });
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const ctx = canvas.getContext('2d')!;
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const strokeSpy = vi.spyOn(ctx, 'stroke');
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engine.render();
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expect(strokeSpy).toHaveBeenCalled();
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});
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it('should render without grid when showGrid=false', () => {
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engine.setOptions({ showGrid: false });
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const ctx = canvas.getContext('2d')!;
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const beginPathSpy = vi.spyOn(ctx, 'beginPath');
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engine.render();
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// With no grid and no elements, beginPath should not be called for grid
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// But it might be called for background. We just verify no crash.
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expect(beginPathSpy).toBeDefined();
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});
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});
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describe('snap points', () => {
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it('should set snap points', () => {
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engine.setSnapPoints([{ x: 10, y: 10, type: 'endpoint' }]);
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engine.setOptions({ showSnapPoints: true });
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expect(() => engine.render()).not.toThrow();
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});
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it('should set active snap point', () => {
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engine.setActiveSnapPoint({ x: 10, y: 10, type: 'endpoint' });
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engine.setOptions({ showSnapPoints: true });
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expect(() => engine.render()).not.toThrow();
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});
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});
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describe('hitTest', () => {
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it('should return the element when hit within tolerance', () => {
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const line = makeLine('l1', 50, 50, 150, 50);
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spatialIndex.insert(line);
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const hit = engine.hitTest(100, 50, 5);
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expect(hit).not.toBeNull();
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expect(hit!.id).toBe('l1');
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});
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it('should return null when no element is hit', () => {
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const line = makeLine('l1', 50, 50, 150, 50);
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spatialIndex.insert(line);
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const hit = engine.hitTest(400, 400, 5);
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expect(hit).toBeNull();
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});
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it('should hit test a rect element', () => {
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const rect = makeRect('r1', 100, 100, 80, 60);
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spatialIndex.insert(rect);
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const hit = engine.hitTest(100, 100, 5);
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expect(hit).not.toBeNull();
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expect(hit!.id).toBe('r1');
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});
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it('should hit test a circle element', () => {
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const circle = makeCircle('c1', 100, 100, 40);
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spatialIndex.insert(circle);
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const hit = engine.hitTest(140, 100, 5);
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expect(hit).not.toBeNull();
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expect(hit!.id).toBe('c1');
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});
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});
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describe('getElementBBox', () => {
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it('should return correct bounding box for element', () => {
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const rect = makeRect('r1', 100, 100, 80, 60);
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const bb = engine.getElementBBox(rect);
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expect(bb.minX).toBe(60);
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expect(bb.minY).toBe(70);
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expect(bb.maxX).toBe(140);
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expect(bb.maxY).toBe(130);
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});
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});
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describe('getElementsInRect', () => {
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it('should return fully enclosed elements', () => {
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const r1 = makeRect('r1', 100, 100, 40, 40);
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const r2 = makeRect('r2', 300, 300, 40, 40);
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spatialIndex.insert(r1);
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spatialIndex.insert(r2);
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const result = engine.getElementsInRect(50, 50, 200, 200);
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expect(result.length).toBe(1);
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expect(result[0].id).toBe('r1');
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});
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it('should return empty when no elements in rect', () => {
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const r1 = makeRect('r1', 100, 100, 40, 40);
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spatialIndex.insert(r1);
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const result = engine.getElementsInRect(500, 500, 600, 600);
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expect(result.length).toBe(0);
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});
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});
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describe('getElementsIntersectingRect', () => {
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it('should return intersecting elements', () => {
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const r1 = makeRect('r1', 100, 100, 80, 80);
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spatialIndex.insert(r1);
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const result = engine.getElementsIntersectingRect(80, 80, 120, 120);
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expect(result.length).toBe(1);
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expect(result[0].id).toBe('r1');
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});
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});
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describe('setLayers', () => {
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it('should clear and set new layers', () => {
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engine.setLayers([
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makeLayer('new-1'),
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makeLayer('new-2'),
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]);
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const layers = layerManager.getLayers();
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expect(layers.length).toBe(2);
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});
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});
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describe('resize', () => {
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it('should resize canvas dimensions', () => {
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engine.resize(400, 300);
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// dpr is likely 1 in jsdom
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expect(canvas.width).toBeGreaterThanOrEqual(400);
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expect(canvas.height).toBeGreaterThanOrEqual(300);
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});
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});
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describe('setBlockDefinitions', () => {
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it('should set block definitions without error', () => {
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engine.setBlockDefinitions([{ id: 'blk-1', elements: [] }]);
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expect(() => engine.render()).not.toThrow();
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});
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});
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});
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